请教大家一下，我用HAL配置的CAN，程序不进回调函数，不知道怎么回事

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请教大家一下，我用HAL配置的CAN，程序不进回调函数，这是HAL库CAN程序

1. void MX_CAN_Init(void)
   
2. {
   
3.   hcan1.Instance = CAN1;
   
4.   hcan1.Init.Prescaler = 8;
   
5.   hcan1.Init.Mode = CAN_MODE_NORMAL;
   
6.   hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;
   
7.   hcan1.Init.TimeSeg1 = CAN_BS1_4TQ;
   
8.   hcan1.Init.TimeSeg2 = CAN_BS2_4TQ;
   
9.   hcan1.Init.TimeTriggeredMode = DISABLE;
   
10.   hcan1.Init.AutoBusOff = ENABLE;
    
11.   hcan1.Init.AutoWakeUp = DISABLE;
    
12.   hcan1.Init.AutoRetransmission = ENABLE;
    
13.   hcan1.Init.ReceiveFifoLocked = DISABLE;
    
14.   hcan1.Init.TransmitFifoPriority = DISABLE;
    
15.   if (HAL_CAN_Init(&hcan1) != HAL_OK)
    
16.   {
    
17.     Error_Handler();
    
18.   }
    
19. 
    
20. }

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1. HAL_StatusTypeDef CAN_Filter_Init(CAN_HandleTypeDef *h_can)
   
2. {
   
3.   CAN_FilterTypeDef sFilterConfig;
   
4. 
   
5.   sFilterConfig.FilterBank = 2;   //chenal 0
   
6.   sFilterConfig.FilterMode = CAN_FILTERMODE_IDMASK;   //????????
   
7.   sFilterConfig.FilterScale = CAN_FILTERSCALE_16BIT;  //????????32?
   
8.   sFilterConfig.FilterIdHigh = 0xB000;  //??????   
   
9.   sFilterConfig.FilterIdLow = 0xC400;   //??????   
   
10.   //MASK bit 0 means don't care,bit 0 means match
    
11.   sFilterConfig.FilterMaskIdHigh = 0xFE1F;   //?????  //?????????????,????????????????
    
12.   sFilterConfig.FilterMaskIdLow = 0xFE1F;    //?????                                 
    
13.   sFilterConfig.FilterFIFOAssignment = CAN_FILTER_FIFO0; //FIFO0????FIFO1????????,?????????????FIFO0?
    
14.   sFilterConfig.FilterActivation = CAN_FILTER_ENABLE;   //enable filter
    
15.   sFilterConfig.SlaveStartFilterBank = 0;    //???can????????,????CAN??,????????
    
16.    HAL_CAN_ConfigFilter(h_can, &sFilterConfig);
    
17.         HAL_CAN_ActivateNotification(h_can, CAN_IT_RX_FIFO0_MSG_PENDING);
    
18. 
    
19. return HAL_OK;
    
20. }

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1. int main(void)
   
2. {
   
3.   HAL_Init();
   
4.   SystemClock_Config();
   
5.   MX_GPIO_Init();
   
6.   
   
7.   MX_USART1_UART_Init();
   
8.         HAL_CAN_MspInit(&hcan1);
   
9.         MX_CAN_Init();
   
10.         CAN_Filter_Init(&hcan1);   

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1. void  HAL_CAN_RxFifo0MsgPendingCallback(CAN_HandleTypeDef *h_can)
   
2. {
   
3.         printf("111111");
   
4. if(h_can->Instance==CAN1)
   
5.         {
   
6.                 HAL_CAN_GetRxMessage(h_can, CAN_RX_FIFO0, &RxMessage, RxData) ;
   
7.         printf(" %02X, %02X, %02X, %02X, %02X, %02X, %02X, %02X\r\n",RxData[0], RxData[1], RxData[2], RxData[3],RxData[4], RxData[5], RxData[6], RxData[7]);       
   
8.         }
   
9. 
   
10. }

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这是HAL配置


不知道为何，就是不进去