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!315 针对STM32F4系列，根据不同的ABP1总线频率来配置CAN 

Merge pull request !315 from svchao/gitee_master
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guozhanxin 2021-12-08 06:08:06 +00:00 committed by Gitee
parent 4907b44930 7053bd7a58
commit 88137fbc91
1 changed files with 19 additions and 1 deletions
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20
bsp/stm32/libraries/HAL_Drivers/drv_can.c
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@ -12,6 +12,8 @@
* 2019-03-27 YLZ support double can channels, support stm32F4xx (only Legacy mode).
* 2019-06-17 YLZ port to new STM32F1xx HAL V1.1.3.
* 2021-02-02 YuZhe XU fix bug in filter config
* 2021-8-25 SVCHAO The baud rate is configured according to the different APB1 frequencies.
f4-series only.
*/
#include "drv_can.h"
@ -34,7 +36,22 @@ static const struct stm32_baud_rate_tab can_baud_rate_tab[] =
{CAN20kBaud, (CAN_SJW_2TQ | CAN_BS1_8TQ | CAN_BS2_3TQ | 150)},
{CAN10kBaud, (CAN_SJW_2TQ | CAN_BS1_8TQ | CAN_BS2_3TQ | 300)}
};
#elif defined (SOC_SERIES_STM32F4)/* APB1 45MHz(max) */
#elif defined (SOC_SERIES_STM32F4) /* 42MHz or 45MHz */
#if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx)|| defined(STM32F417xx) ||\
defined(STM32F401xC) || defined(STM32F401xE) /* 42MHz(max) */
static const struct stm32_baud_rate_tab can_baud_rate_tab[] =
{
{CAN1MBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_4TQ | 3)},
{CAN800kBaud, (CAN_SJW_2TQ | CAN_BS1_8TQ | CAN_BS2_5TQ | 4)},
{CAN500kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 6)},
{CAN250kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 12)},
{CAN125kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 24)},
{CAN100kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 30)},
{CAN50kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 60)},
{CAN20kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 150)},
{CAN10kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 300)}
};
#else /* APB1 45MHz(max) */
static const struct stm32_baud_rate_tab can_baud_rate_tab[] =
{
{CAN1MBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 3)},
@ -47,6 +64,7 @@ static const struct stm32_baud_rate_tab can_baud_rate_tab[] =
{CAN20kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 150)},
{CAN10kBaud, (CAN_SJW_2TQ | CAN_BS1_9TQ | CAN_BS2_5TQ | 300)}
};
#endif
#elif defined (SOC_SERIES_STM32F7)/* APB1 54MHz(max) */
static const struct stm32_baud_rate_tab can_baud_rate_tab[] =
{