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stm32: Improved CAN support for STM32 (#2976)

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Reworked the STM32F0 CAN bus implementation. It's more robust and higher performance.

Added support for function remapping to different pins.  API is emulating an STM32F0.

Improved and ported CAN bus to STM32F0, F1 and F4.

Signed-off-by: Pontus Borg <glpontus@gmail.com>
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bondus 2020-06-25 00:59:38 +02:00 • committed by GitHub
parent 7cab732ae9
commit 7a8e9591e3
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7 changed files with 493 additions and 279 deletions
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src/stm32/stm32f0.c
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@ -219,7 +219,7 @@ armcm_main(void)
// Turn on hsi14 oscillator for ADC
hsi14_setup();
// Support alternate USB/CAN pins on stm32f042
// Support pin remapping USB/CAN pins on low pinout stm32f042
#ifdef SYSCFG_CFGR1_PA11_PA12_RMP
if (CONFIG_STM32F042_PIN_SWAP) {
enable_pclock(SYSCFG_BASE);