STM32bxCAN设置Filter指向不同FIFO不成功，请指点！

SPEED

STM32bxCAN设置Filter指向不同FIFO不成功，请指点！ [复制链接]

贴代码：
Filter代码：
//CAN过滤器设置
        CAN_FilterInitStructure.CAN_FilterNumber=0;
        CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
        CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
        CAN_FilterInitStructure.CAN_FilterIdHigh=(((u32)CAN_ID<<3)&0xFFFF0000)>>16;
        CAN_FilterInitStructure.CAN_FilterIdLow= (((u32)CAN_ID<<3)&0xFFFF);
        CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0xFFFF;
        CAN_FilterInitStructure.CAN_FilterMaskIdLow= 0xFFF8;
        CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0;
        CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
        CAN_FilterInit(&CAN_FilterInitStructure);
       
        CAN_FilterInitStructure.CAN_FilterNumber=1;
        CAN_FilterInitStructure.CAN_FilterIdHigh=(((u32)CAN_ID1<<3)&0xFFFF0000)>>16;
        CAN_FilterInitStructure.CAN_FilterIdLow= (((u32)CAN_ID1<<3)&0xFFFF);
        CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0xFFFF;
        CAN_FilterInitStructure.CAN_FilterMaskIdLow= 0xFFF8;
        CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO1;
        CAN_FilterInit(&CAN_FilterInitStructure);
       
        /*允许FMP0中断*/
        CAN_ITConfig(CAN1,CAN_IT_FMP0|CAN_IT_FMP1, ENABLE);
}


中断函数：
void USB_LP_CAN1_RX0_IRQHandler(void)
{
        CanRxMsg RxMessage;
        CAN_Receive(CAN1,CAN_FIFO0, &RxMessage);
        CAN_Receive(CAN1,CAN_FIFO1, &RxMessage);
    if((RxMessage.Data[0]==0x11)&&(RxMessage.Data[1]==0x22)&&(RxMessage.Data[2]==0x33)&&(RxMessage.Data[3]==0x44))
         {
           Receive_flag=1;
         }
         if((RxMessage.Data[0]==0x88)&&(RxMessage.Data[1]==0x77)&&(RxMessage.Data[2]==0x66)&&(RxMessage.Data[3]==0x55))
         {
           Receive_flag1=1;
         }               
}

过滤器分别指向了FIIO0和FIFO1，发现不能正常收发数据，那位朋友设置过，希望指点一二！

gaoli.85

                                 你先不设置过滤器试试，看能不能接受数据

bpt888

我不设置过滤可是收到数据，第一个过滤也可以收到数据
CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO0;这样也可以收到数据，但是
CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_FIFO1;就不可以收到数据！

bg2ifb

                                 会不会你把你要收的ID给滤掉了

hyz5122

                                 应该还是过滤器的设置有问题