问题遇到的现象和发生背景
STM32G474VE的板子，参照网上的例程，CAN通信发送：标准帧和扩展帧正常。但是接收的时候，只有标准帧可以正常接收到，扩展帧进不了中断，求帮忙看看代码。
问
void User_FDCAN1_Config(void)
{
FDCAN_FilterTypeDef sFilterConfig;
/* Configure Rx filter STD */
sFilterConfig.IdType = FDCAN_STANDARD_ID;
sFilterConfig.FilterIndex = 0;
sFilterConfig.FilterType = FDCAN_FILTER_RANGE;
sFilterConfig.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig.FilterID1 = 0x00;
sFilterConfig.FilterID2 = 0x7ff;
if (HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig) != HAL_OK)
{
Error_Handler();
}
/* Configure Rx filter EXIT */
sFilterConfig.IdType = FDCAN_EXTENDED_ID;
sFilterConfig.FilterIndex = 0;
sFilterConfig.FilterType = FDCAN_FILTER_RANGE;
sFilterConfig.FilterConfig = FDCAN_FILTER_TO_RXFIFO0;
sFilterConfig.FilterID1 = 0x00000000;
sFilterConfig.FilterID2 = 0x1FFFFFFF;
if (HAL_FDCAN_ConfigFilter(&hfdcan1, &sFilterConfig) != HAL_OK)
{
Error_Handler();
}
/* Configure global filter:
Filter all remote frames with STD and EXT ID
Reject non matching frames with STD ID and EXT ID */
if (HAL_FDCAN_ConfigGlobalFilter(&hfdcan1, FDCAN_REJECT, FDCAN_REJECT, FDCAN_FILTER_REMOTE, FDCAN_FILTER_REMOTE) != HAL_OK)
{
Error_Handler();
}
/* Start the FDCAN module */
if (HAL_FDCAN_Start(&hfdcan1) != HAL_OK)
{
Error_Handler();
}
if (HAL_FDCAN_ActivateNotification(&hfdcan1, FDCAN_IT_RX_FIFO0_NEW_MESSAGE, 0) != HAL_OK)
{
Error_Handler();
}
}
//接收中断回调函数
void HAL_FDCAN_RxFifo0Callback(FDCAN_HandleTypeDef *hfdcan, uint32_t RxFifo0ITs)
{
flgCANReadIsOk=1;
if((RxFifo0ITs & FDCAN_IT_RX_FIFO0_NEW_MESSAGE) != RESET)
{
if(hfdcan == &hfdcan1)//CAN1中断
{
//CAN1接收中断触发，接收数据
HAL_FDCAN_GetRxMessage(&hfdcan1,FDCAN_RX_FIFO0,&RxHeader,rxdatacan);
flgCANReadIsOk=1;
// 缓存数据buffe
HAL_FDCAN_ActivateNotification(&hfdcan1,FDCAN_IT_RX_FIFO0_NEW_MESSAGE,0);
}
}
}
```题相关代码，请勿粘贴截图
###### 运行结果及报错内容
###### 我的解答思路和尝试过的方法
我尝试在中断函数那个地方加断点，但是没有进入中断。
```c
/**
* @brief This function handles FDCAN1 interrupt 0.
*/
void FDCAN1_IT0_IRQHandler(void)
{
/* USER CODE BEGIN FDCAN1_IT0_IRQn 0 */
/* USER CODE END FDCAN1_IT0_IRQn 0 */
HAL_FDCAN_IRQHandler(&hfdcan1);
/* USER CODE BEGIN FDCAN1_IT0_IRQn 1 */
/* USER CODE END FDCAN1_IT0_IRQn 1 */
}
