lib: Add stm32f0 hal and cmsis files

Signed-off-by: Eugene Krashtan <Eugene.Krashtan@opensynergy.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

lib/cmsis-stm32f0/source/startup_stm32f030x6.s

@@ -0,0 +1,271 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f030x6.s
+  * @author    MCD Application Team
+  * @brief     STM32F030x4/STM32F030x6 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  0                                 /* Reserved                     */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  0                                 /* Reserved                     */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  0                                 /* Reserved                     */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f030x8.s

@@ -0,0 +1,286 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f030x8.s
+  * @author    MCD Application Team
+  * @brief     STM32F030x8 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_IRQHandler                   /* TIM6                         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_IRQHandler
+  .thumb_set TIM6_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f030xc.s

@@ -0,0 +1,291 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f030xc.s
+  * @author    MCD Application Team
+  * @brief     STM32F030xc/STM32F030xb devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_IRQHandler                   /* TIM6                         */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_6_IRQHandler               /* USART3, USART4, USART5, USART6 */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_IRQHandler
+  .thumb_set TIM6_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_6_IRQHandler
+  .thumb_set USART3_6_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f031x6.s

@@ -0,0 +1,277 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f031x6.s
+  * @author    MCD Application Team
+  * @brief     STM32F031x4/STM32F031x6 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_IRQHandler                    /* PVD through EXTI Line detect */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  0                                 /* Reserved                     */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  0                                 /* Reserved                     */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  0                                 /* Reserved                     */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      PVD_IRQHandler
+  .thumb_set PVD_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f038xx.s

@@ -0,0 +1,274 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f038xx.s
+  * @author    MCD Application Team
+  * @brief     STM32F038xx devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  0                                 /* Reserved                     */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  0                                 /* Reserved                     */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  0                                 /* Reserved                     */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f042x6.s

@@ -0,0 +1,342 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f042x6.s
+  * @author    MCD Application Team
+  * @brief     STM32F042x4/STM32F042x6 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+/**
+ * @brief  This is the code that gets called when the processor first
+ *          starts execution following a reset event. Only the absolutely
+ *          necessary set is performed, after which the application
+ *          supplied main() routine is called.
+ * @param  None
+ * @retval : None
+*/
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/*Check if boot space corresponds to test memory*/
+ 
+    LDR R0,=0x00000004
+    LDR R1, [R0]
+    LSRS R1, R1, #24
+    LDR R2,=0x1F
+    CMP R1, R2
+    BNE ApplicationStart
+
+ /*SYSCFG clock enable*/
+
+    LDR R0,=0x40021018
+    LDR R1,=0x00000001
+    STR R1, [R0]
+
+/*Set CFGR1 register with flash memory remap at address 0*/
+    LDR R0,=0x40010000
+    LDR R1,=0x00000000
+    STR R1, [R0]
+
+ApplicationStart:
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+Default_Handler2:
+Infinite_Loop2:
+  b Infinite_Loop2
+  .size Default_Handler2, .-Default_Handler2
+
+.weak  HardFault_Handler
+.type  HardFault_Handler, %function
+.extern hard_fault_handler_c
+HardFault_Handler:
+  movs r0,#4
+  mov r1,lr
+  tst r0,r1
+  beq _MSP
+  mrs r0, psp
+  b _HALT
+_MSP:
+  mrs r0, msp
+_HALT:
+  ldr r1,[r0,#20]
+  bl hard_fault_handler_c
+  bkpt #0
+.size  HardFault_Handler, .-HardFault_Handler
+
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_VDDIO2_IRQHandler             /* PVD and VDDIO2 through EXTI Line detect */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  0                                 /* Reserved                     */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  0                                 /* Reserved                     */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  0                                 /* Reserved                     */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      PVD_VDDIO2_IRQHandler
+  .thumb_set PVD_VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler2
+
+  .weak      USB_IRQHandler
+  .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f048xx.s

@@ -0,0 +1,292 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f048xx.s
+  * @author    MCD Application Team
+  * @brief     STM32F048xx devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  VDDIO2_IRQHandler                 /* VDDIO2 Monitor through EXTI Line 31 */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  0                                 /* Reserved                     */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  0                                 /* Reserved                     */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  0                                 /* Reserved                     */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      VDDIO2_IRQHandler
+  .thumb_set VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+  .weak      USB_IRQHandler
+  .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f051x8.s

@@ -0,0 +1,298 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f051x8.s
+  * @author    MCD Application Team
+  * @brief     STM32F051x4/STM32F051x6/STM32F051x8 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_IRQHandler                    /* PVD through EXTI Line detect */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  0                                 /* Reserved                     */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      PVD_IRQHandler
+  .thumb_set PVD_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f058xx.s

@@ -0,0 +1,295 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f058xx.s
+  * @author    MCD Application Team
+  * @brief     STM32F058xx devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  0                                 /* Reserved                     */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f070x6.s

@@ -0,0 +1,307 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f070x6.s
+  * @author    MCD Application Team
+  * @brief     STM32F070x4/STM32F070x6 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+/**
+ * @brief  This is the code that gets called when the processor first
+ *          starts execution following a reset event. Only the absolutely
+ *          necessary set is performed, after which the application
+ *          supplied main() routine is called.
+ * @param  None
+ * @retval : None
+*/
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/*Check if boot space corresponds to test memory*/
+ 
+    LDR R0,=0x00000004
+    LDR R1, [R0]
+    LSRS R1, R1, #24
+    LDR R2,=0x1F
+    CMP R1, R2
+    BNE ApplicationStart
+
+ /*SYSCFG clock enable*/
+
+    LDR R0,=0x40021018
+    LDR R1,=0x00000001
+    STR R1, [R0]
+
+/*Set CFGR1 register with flash memory remap at address 0*/
+    LDR R0,=0x40010000
+    LDR R1,=0x00000000
+    STR R1, [R0]
+
+ApplicationStart:
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  0                                 /* Reserved                     */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  0                                 /* Reserved                     */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  0                                 /* Reserved                     */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  0                                 /* Reserved                     */
+  .word  0                                 /* Reserved                     */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USB_IRQHandler
+  .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f070xb.s

@@ -0,0 +1,295 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f070xb.s
+  * @author    MCD Application Team
+  * @brief     STM32F070xb/STM32F070x8 devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  0                                 /* Reserved                     */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_IRQHandler                    /* RCC                          */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  0                                 /* Reserved                     */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_IRQHandler        /* DMA1 Channel 4 and Channel 5 */
+  .word  ADC1_IRQHandler                   /* ADC1                         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  0                                 /* Reserved                     */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_IRQHandler                   /* TIM6                         */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_4_IRQHandler               /* USART3 and USART4            */
+  .word  0                                 /* Reserved                     */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_IRQHandler
+  .thumb_set RCC_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_IRQHandler
+  .thumb_set DMA1_Channel4_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_IRQHandler
+  .thumb_set ADC1_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_IRQHandler
+  .thumb_set TIM6_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_4_IRQHandler
+  .thumb_set USART3_4_IRQHandler,Default_Handler
+
+  .weak      USB_IRQHandler
+  .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f071xb.s

@@ -0,0 +1,304 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f071xb.s
+  * @author    MCD Application Team
+  * @brief     STM32F071x8/STM32F071xB devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_VDDIO2_IRQHandler             /* PVD and VDDIO2 through EXTI Line detect */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_6_7_IRQHandler    /* DMA1 Channel 4, Channel 5, Channel 6 and Channel 7*/
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_4_IRQHandler               /* USART3 and USART4            */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  0                                 /* Reserved                     */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      PVD_VDDIO2_IRQHandler
+  .thumb_set PVD_VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_6_7_IRQHandler
+  .thumb_set DMA1_Channel4_5_6_7_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_4_IRQHandler
+  .thumb_set USART3_4_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f072xb.s

@@ -0,0 +1,307 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f072xb.s
+  * @author    MCD Application Team
+  * @brief     STM32F072x8/STM32F072xB devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_VDDIO2_IRQHandler             /* PVD and VDDIO2 through EXTI Line detect */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_6_7_IRQHandler    /* DMA1 Channel 4, Channel 5, Channel 6 and Channel 7*/
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_4_IRQHandler               /* USART3 and USART4            */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      PVD_VDDIO2_IRQHandler
+  .thumb_set PVD_VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_6_7_IRQHandler
+  .thumb_set DMA1_Channel4_5_6_7_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_4_IRQHandler
+  .thumb_set USART3_4_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+  .weak      USB_IRQHandler
+  .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f078xx.s

@@ -0,0 +1,307 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f078xx.s
+  * @author    MCD Application Team
+  * @brief     STM32F078xx devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  VDDIO2_IRQHandler                 /* VDDIO2 Monitor through EXTI Line 31 */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Channel1_IRQHandler          /* DMA1 Channel 1               */
+  .word  DMA1_Channel2_3_IRQHandler        /* DMA1 Channel 2 and Channel 3 */
+  .word  DMA1_Channel4_5_6_7_IRQHandler    /* DMA1 Channel 4, Channel 5, Channel 6 and Channel 7*/
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_4_IRQHandler               /* USART3 and USART4            */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+  .word  USB_IRQHandler                    /* USB                          */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      VDDIO2_IRQHandler
+  .thumb_set VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel1_IRQHandler
+  .thumb_set DMA1_Channel1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel2_3_IRQHandler
+  .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler
+
+  .weak      DMA1_Channel4_5_6_7_IRQHandler
+  .thumb_set DMA1_Channel4_5_6_7_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_4_IRQHandler
+  .thumb_set USART3_4_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+  .weak      USB_IRQHandler
+  .thumb_set USB_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f091xc.s

@@ -0,0 +1,303 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f091xc.s
+  * @author    MCD Application Team
+  * @brief     STM32F091xC devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  PVD_VDDIO2_IRQHandler             /* PVD and VDDIO2 through EXTI Line detect */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Ch1_IRQHandler               /* DMA1 Channel 1               */
+  .word  DMA1_Ch2_3_DMA2_Ch1_2_IRQHandler  /* DMA1 Channel 2 and 3 & DMA2 Channel 1 and 2 */
+  .word  DMA1_Ch4_7_DMA2_Ch3_5_IRQHandler  /* DMA1 Channel 4 to 7 & DMA2 Channel 3 to 5 */
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_8_IRQHandler               /* USART3, USART4, USART5, USART6, USART7, USART8 */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      PVD_VDDIO2_IRQHandler
+  .thumb_set PVD_VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Ch1_IRQHandler
+  .thumb_set DMA1_Ch1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Ch2_3_DMA2_Ch1_2_IRQHandler
+  .thumb_set DMA1_Ch2_3_DMA2_Ch1_2_IRQHandler,Default_Handler
+
+  .weak      DMA1_Ch4_7_DMA2_Ch3_5_IRQHandler
+  .thumb_set DMA1_Ch4_7_DMA2_Ch3_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_8_IRQHandler
+  .thumb_set USART3_8_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/startup_stm32f098xx.s

@@ -0,0 +1,303 @@
+/**
+  ******************************************************************************
+  * @file      startup_stm32f098xx.s
+  * @author    MCD Application Team
+  * @brief     STM32F098xx devices vector table for GCC toolchain.
+  *            This module performs:
+  *                - Set the initial SP
+  *                - Set the initial PC == Reset_Handler,
+  *                - Set the vector table entries with the exceptions ISR address
+  *                - Branches to main in the C library (which eventually
+  *                  calls main()).
+  *            After Reset the Cortex-M0 processor is in Thread mode,
+  *            priority is Privileged, and the Stack is set to Main.
+  ******************************************************************************
+  * 
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+  .syntax unified
+  .cpu cortex-m0
+  .fpu softvfp
+  .thumb
+
+.global g_pfnVectors
+.global Default_Handler
+
+/* start address for the initialization values of the .data section.
+defined in linker script */
+.word _sidata
+/* start address for the .data section. defined in linker script */
+.word _sdata
+/* end address for the .data section. defined in linker script */
+.word _edata
+/* start address for the .bss section. defined in linker script */
+.word _sbss
+/* end address for the .bss section. defined in linker script */
+.word _ebss
+
+  .section .text.Reset_Handler
+  .weak Reset_Handler
+  .type Reset_Handler, %function
+Reset_Handler:
+  ldr   r0, =_estack
+  mov   sp, r0          /* set stack pointer */
+
+/* Copy the data segment initializers from flash to SRAM */
+  ldr r0, =_sdata
+  ldr r1, =_edata
+  ldr r2, =_sidata
+  movs r3, #0
+  b LoopCopyDataInit
+
+CopyDataInit:
+  ldr r4, [r2, r3]
+  str r4, [r0, r3]
+  adds r3, r3, #4
+
+LoopCopyDataInit:
+  adds r4, r0, r3
+  cmp r4, r1
+  bcc CopyDataInit
+  
+/* Zero fill the bss segment. */
+  ldr r2, =_sbss
+  ldr r4, =_ebss
+  movs r3, #0
+  b LoopFillZerobss
+
+FillZerobss:
+  str  r3, [r2]
+  adds r2, r2, #4
+
+LoopFillZerobss:
+  cmp r2, r4
+  bcc FillZerobss
+
+/* Call the clock system intitialization function.*/
+  bl  SystemInit
+/* Call static constructors */
+  bl __libc_init_array
+/* Call the application's entry point.*/
+  bl main
+
+LoopForever:
+    b LoopForever
+
+
+.size Reset_Handler, .-Reset_Handler
+
+/**
+ * @brief  This is the code that gets called when the processor receives an
+ *         unexpected interrupt.  This simply enters an infinite loop, preserving
+ *         the system state for examination by a debugger.
+ *
+ * @param  None
+ * @retval : None
+*/
+    .section .text.Default_Handler,"ax",%progbits
+Default_Handler:
+Infinite_Loop:
+  b Infinite_Loop
+  .size Default_Handler, .-Default_Handler
+/******************************************************************************
+*
+* The minimal vector table for a Cortex M0.  Note that the proper constructs
+* must be placed on this to ensure that it ends up at physical address
+* 0x0000.0000.
+*
+******************************************************************************/
+   .section .isr_vector,"a",%progbits
+  .type g_pfnVectors, %object
+  .size g_pfnVectors, .-g_pfnVectors
+
+
+g_pfnVectors:
+  .word  _estack
+  .word  Reset_Handler
+  .word  NMI_Handler
+  .word  HardFault_Handler
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  0
+  .word  SVC_Handler
+  .word  0
+  .word  0
+  .word  PendSV_Handler
+  .word  SysTick_Handler
+  .word  WWDG_IRQHandler                   /* Window WatchDog              */
+  .word  VDDIO2_IRQHandler                 /* VDDIO2 Monitor through EXTI Line 31 */
+  .word  RTC_IRQHandler                    /* RTC through the EXTI line    */
+  .word  FLASH_IRQHandler                  /* FLASH                        */
+  .word  RCC_CRS_IRQHandler                /* RCC and CRS                  */
+  .word  EXTI0_1_IRQHandler                /* EXTI Line 0 and 1            */
+  .word  EXTI2_3_IRQHandler                /* EXTI Line 2 and 3            */
+  .word  EXTI4_15_IRQHandler               /* EXTI Line 4 to 15            */
+  .word  TSC_IRQHandler                    /* TSC                          */
+  .word  DMA1_Ch1_IRQHandler               /* DMA1 Channel 1               */
+  .word  DMA1_Ch2_3_DMA2_Ch1_2_IRQHandler  /* DMA1 Channel 2 and 3 & DMA2 Channel 1 and 2 */
+  .word  DMA1_Ch4_7_DMA2_Ch3_5_IRQHandler  /* DMA1 Channel 4 to 7 & DMA2 Channel 3 to 5 */
+  .word  ADC1_COMP_IRQHandler              /* ADC1, COMP1 and COMP2         */
+  .word  TIM1_BRK_UP_TRG_COM_IRQHandler    /* TIM1 Break, Update, Trigger and Commutation */
+  .word  TIM1_CC_IRQHandler                /* TIM1 Capture Compare         */
+  .word  TIM2_IRQHandler                   /* TIM2                         */
+  .word  TIM3_IRQHandler                   /* TIM3                         */
+  .word  TIM6_DAC_IRQHandler               /* TIM6 and DAC                 */
+  .word  TIM7_IRQHandler                   /* TIM7                         */
+  .word  TIM14_IRQHandler                  /* TIM14                        */
+  .word  TIM15_IRQHandler                  /* TIM15                        */
+  .word  TIM16_IRQHandler                  /* TIM16                        */
+  .word  TIM17_IRQHandler                  /* TIM17                        */
+  .word  I2C1_IRQHandler                   /* I2C1                         */
+  .word  I2C2_IRQHandler                   /* I2C2                         */
+  .word  SPI1_IRQHandler                   /* SPI1                         */
+  .word  SPI2_IRQHandler                   /* SPI2                         */
+  .word  USART1_IRQHandler                 /* USART1                       */
+  .word  USART2_IRQHandler                 /* USART2                       */
+  .word  USART3_8_IRQHandler               /* USART3, USART4, USART5, USART6, USART7, USART8 */
+  .word  CEC_CAN_IRQHandler                /* CEC and CAN                  */
+
+/*******************************************************************************
+*
+* Provide weak aliases for each Exception handler to the Default_Handler.
+* As they are weak aliases, any function with the same name will override
+* this definition.
+*
+*******************************************************************************/
+
+  .weak      NMI_Handler
+  .thumb_set NMI_Handler,Default_Handler
+
+  .weak      HardFault_Handler
+  .thumb_set HardFault_Handler,Default_Handler
+
+  .weak      SVC_Handler
+  .thumb_set SVC_Handler,Default_Handler
+
+  .weak      PendSV_Handler
+  .thumb_set PendSV_Handler,Default_Handler
+
+  .weak      SysTick_Handler
+  .thumb_set SysTick_Handler,Default_Handler
+
+  .weak      WWDG_IRQHandler
+  .thumb_set WWDG_IRQHandler,Default_Handler
+
+  .weak      VDDIO2_IRQHandler
+  .thumb_set VDDIO2_IRQHandler,Default_Handler
+
+  .weak      RTC_IRQHandler
+  .thumb_set RTC_IRQHandler,Default_Handler
+
+  .weak      FLASH_IRQHandler
+  .thumb_set FLASH_IRQHandler,Default_Handler
+
+  .weak      RCC_CRS_IRQHandler
+  .thumb_set RCC_CRS_IRQHandler,Default_Handler
+
+  .weak      EXTI0_1_IRQHandler
+  .thumb_set EXTI0_1_IRQHandler,Default_Handler
+
+  .weak      EXTI2_3_IRQHandler
+  .thumb_set EXTI2_3_IRQHandler,Default_Handler
+
+  .weak      EXTI4_15_IRQHandler
+  .thumb_set EXTI4_15_IRQHandler,Default_Handler
+
+  .weak      TSC_IRQHandler
+  .thumb_set TSC_IRQHandler,Default_Handler
+
+  .weak      DMA1_Ch1_IRQHandler
+  .thumb_set DMA1_Ch1_IRQHandler,Default_Handler
+
+  .weak      DMA1_Ch2_3_DMA2_Ch1_2_IRQHandler
+  .thumb_set DMA1_Ch2_3_DMA2_Ch1_2_IRQHandler,Default_Handler
+
+  .weak      DMA1_Ch4_7_DMA2_Ch3_5_IRQHandler
+  .thumb_set DMA1_Ch4_7_DMA2_Ch3_5_IRQHandler,Default_Handler
+
+  .weak      ADC1_COMP_IRQHandler
+  .thumb_set ADC1_COMP_IRQHandler,Default_Handler
+
+  .weak      TIM1_BRK_UP_TRG_COM_IRQHandler
+  .thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler,Default_Handler
+
+  .weak      TIM1_CC_IRQHandler
+  .thumb_set TIM1_CC_IRQHandler,Default_Handler
+
+  .weak      TIM2_IRQHandler
+  .thumb_set TIM2_IRQHandler,Default_Handler
+
+  .weak      TIM3_IRQHandler
+  .thumb_set TIM3_IRQHandler,Default_Handler
+
+  .weak      TIM6_DAC_IRQHandler
+  .thumb_set TIM6_DAC_IRQHandler,Default_Handler
+
+  .weak      TIM7_IRQHandler
+  .thumb_set TIM7_IRQHandler,Default_Handler
+
+  .weak      TIM14_IRQHandler
+  .thumb_set TIM14_IRQHandler,Default_Handler
+
+  .weak      TIM15_IRQHandler
+  .thumb_set TIM15_IRQHandler,Default_Handler
+
+  .weak      TIM16_IRQHandler
+  .thumb_set TIM16_IRQHandler,Default_Handler
+
+  .weak      TIM17_IRQHandler
+  .thumb_set TIM17_IRQHandler,Default_Handler
+
+  .weak      I2C1_IRQHandler
+  .thumb_set I2C1_IRQHandler,Default_Handler
+
+  .weak      I2C2_IRQHandler
+  .thumb_set I2C2_IRQHandler,Default_Handler
+
+  .weak      SPI1_IRQHandler
+  .thumb_set SPI1_IRQHandler,Default_Handler
+
+  .weak      SPI2_IRQHandler
+  .thumb_set SPI2_IRQHandler,Default_Handler
+
+  .weak      USART1_IRQHandler
+  .thumb_set USART1_IRQHandler,Default_Handler
+
+  .weak      USART2_IRQHandler
+  .thumb_set USART2_IRQHandler,Default_Handler
+
+  .weak      USART3_8_IRQHandler
+  .thumb_set USART3_8_IRQHandler,Default_Handler
+
+  .weak      CEC_CAN_IRQHandler
+  .thumb_set CEC_CAN_IRQHandler,Default_Handler
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+

lib/cmsis-stm32f0/source/system_stm32f0xx.c

@@ -0,0 +1,333 @@
+/**
+  ******************************************************************************
+  * @file    system_stm32f0xx.c
+  * @author  MCD Application Team
+  * @brief   CMSIS Cortex-M0 Device Peripheral Access Layer System Source File.
+  *
+  * 1. This file provides two functions and one global variable to be called from
+  *    user application:
+  *      - SystemInit(): This function is called at startup just after reset and 
+  *                      before branch to main program. This call is made inside
+  *                      the "startup_stm32f0xx.s" file.
+  *
+  *      - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
+  *                                  by the user application to setup the SysTick
+  *                                  timer or configure other parameters.
+  *
+  *      - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
+  *                                 be called whenever the core clock is changed
+  *                                 during program execution.
+  *
+  * 2. After each device reset the HSI (8 MHz) is used as system clock source.
+  *    Then SystemInit() function is called, in "startup_stm32f0xx.s" file, to
+  *    configure the system clock before to branch to main program.
+  *
+  * 3. This file configures the system clock as follows:
+  *=============================================================================
+  *                         Supported STM32F0xx device
+  *-----------------------------------------------------------------------------
+  *        System Clock source                    | HSI
+  *-----------------------------------------------------------------------------
+  *        SYSCLK(Hz)                             | 8000000
+  *-----------------------------------------------------------------------------
+  *        HCLK(Hz)                               | 8000000
+  *-----------------------------------------------------------------------------
+  *        AHB Prescaler                          | 1
+  *-----------------------------------------------------------------------------
+  *        APB1 Prescaler                         | 1
+  *-----------------------------------------------------------------------------
+  *=============================================================================
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/** @addtogroup CMSIS
+  * @{
+  */
+
+/** @addtogroup stm32f0xx_system
+  * @{
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Includes
+  * @{
+  */
+
+#include "stm32f0xx.h"
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_TypesDefinitions
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Defines
+  * @{
+  */
+#if !defined  (HSE_VALUE) 
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Default value of the External oscillator in Hz.
+                                                This value can be provided and adapted by the user application. */
+#endif /* HSE_VALUE */
+
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)8000000) /*!< Default value of the Internal oscillator in Hz.
+                                                This value can be provided and adapted by the user application. */
+#endif /* HSI_VALUE */
+
+#if !defined (HSI48_VALUE)
+#define HSI48_VALUE    ((uint32_t)48000000) /*!< Default value of the HSI48 Internal oscillator in Hz.
+                                                 This value can be provided and adapted by the user application. */
+#endif /* HSI48_VALUE */
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Macros
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Variables
+  * @{
+  */
+  /* This variable is updated in three ways:
+      1) by calling CMSIS function SystemCoreClockUpdate()
+      2) by calling HAL API function HAL_RCC_GetHCLKFreq()
+      3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
+         Note: If you use this function to configure the system clock there is no need to
+               call the 2 first functions listed above, since SystemCoreClock variable is 
+               updated automatically.
+  */
+uint32_t SystemCoreClock = 8000000;
+
+const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
+const uint8_t APBPrescTable[8]  = {0, 0, 0, 0, 1, 2, 3, 4};
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_FunctionPrototypes
+  * @{
+  */
+
+/**
+  * @}
+  */
+
+/** @addtogroup STM32F0xx_System_Private_Functions
+  * @{
+  */
+
+/**
+  * @brief  Setup the microcontroller system.
+  *         Initialize the default HSI clock source, vector table location and the PLL configuration is reset.
+  * @param  None
+  * @retval None
+  */
+__attribute__((used)) void SystemInit(void)
+{
+  /* Reset the RCC clock configuration to the default reset state ------------*/
+  /* Set HSION bit */
+  RCC->CR |= (uint32_t)0x00000001U;
+
+#if defined (STM32F051x8) || defined (STM32F058x8)
+  /* Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE and MCOSEL[2:0] bits */
+  RCC->CFGR &= (uint32_t)0xF8FFB80CU;
+#else
+  /* Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE, MCOSEL[2:0], MCOPRE[2:0] and PLLNODIV bits */
+  RCC->CFGR &= (uint32_t)0x08FFB80CU;
+#endif /* STM32F051x8 or STM32F058x8 */
+  
+  /* Reset HSEON, CSSON and PLLON bits */
+  RCC->CR &= (uint32_t)0xFEF6FFFFU;
+
+  /* Reset HSEBYP bit */
+  RCC->CR &= (uint32_t)0xFFFBFFFFU;
+
+  /* Reset PLLSRC, PLLXTPRE and PLLMUL[3:0] bits */
+  RCC->CFGR &= (uint32_t)0xFFC0FFFFU;
+
+  /* Reset PREDIV[3:0] bits */
+  RCC->CFGR2 &= (uint32_t)0xFFFFFFF0U;
+
+#if defined (STM32F072xB) || defined (STM32F078xx)
+  /* Reset USART2SW[1:0], USART1SW[1:0], I2C1SW, CECSW, USBSW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFFCFE2CU;
+#elif defined (STM32F071xB)
+  /* Reset USART2SW[1:0], USART1SW[1:0], I2C1SW, CECSW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFFFCEACU;
+#elif defined (STM32F091xC) || defined (STM32F098xx)
+  /* Reset USART3SW[1:0], USART2SW[1:0], USART1SW[1:0], I2C1SW, CECSW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFF0FEACU;
+#elif defined (STM32F030x6) || defined (STM32F030x8) || defined (STM32F031x6) || defined (STM32F038xx) || defined (STM32F030xC)
+  /* Reset USART1SW[1:0], I2C1SW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFFFFEECU;
+#elif defined (STM32F051x8) || defined (STM32F058xx)
+  /* Reset USART1SW[1:0], I2C1SW, CECSW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFFFFEACU;
+#elif defined (STM32F042x6) || defined (STM32F048xx)
+  /* Reset USART1SW[1:0], I2C1SW, CECSW, USBSW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFFFFE2CU;
+#elif defined (STM32F070x6) || defined (STM32F070xB)
+  /* Reset USART1SW[1:0], I2C1SW, USBSW and ADCSW bits */
+  RCC->CFGR3 &= (uint32_t)0xFFFFFE6CU;
+  /* Set default USB clock to PLLCLK, since there is no HSI48 */
+  RCC->CFGR3 |= (uint32_t)0x00000080U;  
+#else
+ #warning "No target selected"
+#endif
+
+  /* Reset HSI14 bit */
+  RCC->CR2 &= (uint32_t)0xFFFFFFFEU;
+
+  /* Disable all interrupts */
+  RCC->CIR = 0x00000000U;
+
+}
+
+/**
+   * @brief  Update SystemCoreClock variable according to Clock Register Values.
+  *         The SystemCoreClock variable contains the core clock (HCLK), it can
+  *         be used by the user application to setup the SysTick timer or configure
+  *         other parameters.
+  *
+  * @note   Each time the core clock (HCLK) changes, this function must be called
+  *         to update SystemCoreClock variable value. Otherwise, any configuration
+  *         based on this variable will be incorrect.
+  *
+  * @note   - The system frequency computed by this function is not the real
+  *           frequency in the chip. It is calculated based on the predefined
+  *           constant and the selected clock source:
+  *
+  *           - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
+  *
+  *           - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
+  *
+  *           - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
+  *             or HSI_VALUE(*) multiplied/divided by the PLL factors.
+  *
+  *         (*) HSI_VALUE is a constant defined in stm32f0xx_hal.h file (default value
+  *             8 MHz) but the real value may vary depending on the variations
+  *             in voltage and temperature.
+  *
+  *         (**) HSE_VALUE is a constant defined in stm32f0xx_hal.h file (default value
+  *              8 MHz), user has to ensure that HSE_VALUE is same as the real
+  *              frequency of the crystal used. Otherwise, this function may
+  *              have wrong result.
+  *
+  *         - The result of this function could be not correct when using fractional
+  *           value for HSE crystal.
+  *
+  * @param  None
+  * @retval None
+  */
+void SystemCoreClockUpdate (void)
+{
+  uint32_t tmp = 0, pllmull = 0, pllsource = 0, predivfactor = 0;
+
+  /* Get SYSCLK source -------------------------------------------------------*/
+  tmp = RCC->CFGR & RCC_CFGR_SWS;
+
+  switch (tmp)
+  {
+    case RCC_CFGR_SWS_HSI:  /* HSI used as system clock */
+      SystemCoreClock = HSI_VALUE;
+      break;
+    case RCC_CFGR_SWS_HSE:  /* HSE used as system clock */
+      SystemCoreClock = HSE_VALUE;
+      break;
+    case RCC_CFGR_SWS_PLL:  /* PLL used as system clock */
+      /* Get PLL clock source and multiplication factor ----------------------*/
+      pllmull = RCC->CFGR & RCC_CFGR_PLLMUL;
+      pllsource = RCC->CFGR & RCC_CFGR_PLLSRC;
+      pllmull = ( pllmull >> 18) + 2;
+      predivfactor = (RCC->CFGR2 & RCC_CFGR2_PREDIV) + 1;
+
+      if (pllsource == RCC_CFGR_PLLSRC_HSE_PREDIV)
+      {
+        /* HSE used as PLL clock source : SystemCoreClock = HSE/PREDIV * PLLMUL */
+        SystemCoreClock = (HSE_VALUE/predivfactor) * pllmull;
+      }
+#if defined(STM32F042x6) || defined(STM32F048xx) || defined(STM32F072xB) || defined(STM32F078xx) || defined(STM32F091xC) || defined(STM32F098xx)
+      else if (pllsource == RCC_CFGR_PLLSRC_HSI48_PREDIV)
+      {
+        /* HSI48 used as PLL clock source : SystemCoreClock = HSI48/PREDIV * PLLMUL */
+        SystemCoreClock = (HSI48_VALUE/predivfactor) * pllmull;
+      }
+#endif /* STM32F042x6 || STM32F048xx || STM32F072xB || STM32F078xx || STM32F091xC || STM32F098xx */
+      else
+      {
+#if defined(STM32F042x6) || defined(STM32F048xx)  || defined(STM32F070x6) \
+ || defined(STM32F078xx) || defined(STM32F071xB)  || defined(STM32F072xB) \
+ || defined(STM32F070xB) || defined(STM32F091xC) || defined(STM32F098xx)  || defined(STM32F030xC)
+        /* HSI used as PLL clock source : SystemCoreClock = HSI/PREDIV * PLLMUL */
+        SystemCoreClock = (HSI_VALUE/predivfactor) * pllmull;
+#else
+        /* HSI used as PLL clock source : SystemCoreClock = HSI/2 * PLLMUL */
+        SystemCoreClock = (HSI_VALUE >> 1) * pllmull;
+#endif /* STM32F042x6 || STM32F048xx || STM32F070x6 || 
+          STM32F071xB || STM32F072xB || STM32F078xx || STM32F070xB ||
+          STM32F091xC || STM32F098xx || STM32F030xC */
+      }
+      break;
+    default: /* HSI used as system clock */
+      SystemCoreClock = HSI_VALUE;
+      break;
+  }
+  /* Compute HCLK clock frequency ----------------*/
+  /* Get HCLK prescaler */
+  tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
+  /* HCLK clock frequency */
+  SystemCoreClock >>= tmp;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+