STM32 HAL库的CAN总线滤波器设置

最新推荐文章于 2025-04-15 16:16:47 发布

sharpzhen

最新推荐文章于 2025-04-15 16:16:47 发布

阅读量4.7k

点赞数 5

分类专栏：嵌入式stm32

本文链接：https://blog.youkuaiyun.com/sharpzhen/article/details/108763966

版权

本文介绍了如何使用STM32 HAL库进行CAN总线的滤波器设置，从stm32cubemx生成的初始化代码开始，详细讲解了滤波器配置步骤，并探讨了通过CAN发送数据的流程，同时涵盖了CAN总线中断服务函数及数据处理函数的应用。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

STM32 HAL库的CAN总线滤波器设置

stm32cubemx生成的can初始化代码

#include "can.h"

#include "gpio.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

CAN_HandleTypeDef hcan1;
CAN_HandleTypeDef hcan2;

/* CAN1 init function */
void MX_CAN1_Init(void)
{
   

  hcan1.Instance = CAN1;
  hcan1.Init.Prescaler = 3;
  hcan1.Init.Mode = CAN_MODE_NORMAL;
  hcan1.Init.SJW = CAN_SJW_1TQ;
  hcan1.Init.BS1 = CAN_BS1_9TQ;
  hcan1.Init.BS2 = CAN_BS2_4TQ;
  hcan1.Init.TTCM = DISABLE;
  hcan1.Init.ABOM = ENABLE;
  hcan1.Init.AWUM = DISABLE;
  hcan1.Init.NART = DISABLE;
  hcan1.Init.RFLM = DISABLE;
  hcan1.Init.TXFP = DISABLE;
  if (HAL_CAN_Init(&hcan1) != HAL_OK)
  {
   
    _Error_Handler(__FILE__, __LINE__);
  }

}
/* CAN2 init function */
void MX_CAN2_Init(void)
{
   

  hcan2.Instance = CAN2;
  hcan2.Init.Prescaler = 3;
  hcan2.Init.Mode = CAN_MODE_NORMAL;
  hcan2.Init.SJW = CAN_SJW_1TQ;
  hcan2.Init.BS1 = CAN_BS1_9TQ;
  hcan2.Init.BS2 = CAN_BS2_4TQ;
  hcan2.Init.TTCM = DISABLE;
  hcan2.Init.ABOM = ENABLE;
  hcan2.Init.AWUM = DISABLE;
  hcan2.Init.NART = DISABLE;
  hcan2.Init.RFLM = DISABLE;
  hcan2