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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>
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lib/hal-stm32f0/source/stm32f0xx_hal_spi_ex.c
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lib/hal-stm32f0/source/stm32f0xx_hal_spi_ex.c
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/**
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******************************************************************************
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* @file stm32f0xx_hal_spi_ex.c
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* @author MCD Application Team
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* @brief Extended SPI HAL module driver.
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* This file provides firmware functions to manage the following
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* SPI peripheral extended functionalities :
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* + IO operation functions
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*
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f0xx_hal.h"
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/** @addtogroup STM32F0xx_HAL_Driver
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* @{
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*/
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/** @defgroup SPIEx SPIEx
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* @brief SPI Extended HAL module driver
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* @{
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*/
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#ifdef HAL_SPI_MODULE_ENABLED
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/* Private typedef -----------------------------------------------------------*/
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/* Private defines -----------------------------------------------------------*/
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/** @defgroup SPIEx_Private_Constants SPIEx Private Constants
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* @{
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*/
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#define SPI_FIFO_SIZE 4
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/**
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* @}
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*/
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/* Private macros ------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions ---------------------------------------------------------*/
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/** @defgroup SPIEx_Exported_Functions SPIEx Exported Functions
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* @{
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*/
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/** @defgroup SPIEx_Exported_Functions_Group1 IO operation functions
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* @brief Data transfers functions
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*
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@verbatim
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==============================================================================
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##### IO operation functions #####
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===============================================================================
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[..]
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This subsection provides a set of extended functions to manage the SPI
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data transfers.
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(#) Rx data flush function:
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(++) HAL_SPIEx_FlushRxFifo()
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@endverbatim
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* @{
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*/
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/**
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* @brief Flush the RX fifo.
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* @param hspi pointer to a SPI_HandleTypeDef structure that contains
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* the configuration information for the specified SPI module.
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* @retval HAL status
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*/
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HAL_StatusTypeDef HAL_SPIEx_FlushRxFifo(SPI_HandleTypeDef *hspi)
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{
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__IO uint32_t tmpreg;
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uint8_t count = 0U;
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while ((hspi->Instance->SR & SPI_FLAG_FRLVL) != SPI_FRLVL_EMPTY)
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{
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count++;
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tmpreg = hspi->Instance->DR;
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UNUSED(tmpreg); /* To avoid GCC warning */
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if (count == SPI_FIFO_SIZE)
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{
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return HAL_TIMEOUT;
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}
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}
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return HAL_OK;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* HAL_SPI_MODULE_ENABLED */
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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