stm32f10x hal库 can驱动求助

发布于 2019-01-16 13:28:24 浏览：2352 订阅该版

5 个回答

e_donkey 2019-01-16

这家伙很懒，什么也没写！

[i=s] 本帖最后由 aozima 于 2019-1-16 15:01 编辑 [/i]

```
void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan)
{

GPIO_InitTypeDef GPIO_InitStruct = {0};
  if(hcan->Instance==CAN1)
  {
  /* USER CODE BEGIN CAN1_MspInit 0 */

/* USER CODE END CAN1_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_CAN1_CLK_ENABLE();
  
    __HAL_RCC_GPIOB_CLK_ENABLE();
    /**CAN GPIO Configuration    
    PB8     ------> CAN_RX
    PB9     ------> CAN_TX 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_8;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

__HAL_AFIO_REMAP_CAN1_2();

/* CAN1 interrupt Init */
    HAL_NVIC_SetPriority(USB_HP_CAN1_TX_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USB_HP_CAN1_TX_IRQn);
    HAL_NVIC_SetPriority(USB_LP_CAN1_RX0_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USB_LP_CAN1_RX0_IRQn);
  /* USER CODE BEGIN CAN1_MspInit 1 */

/* USER CODE END CAN1_MspInit 1 */
  }

}
```