STM32Cube的CAN滤波如何设置

newphj 提问时间：2016-9-14 15:14 /

STM32Cube的CAN滤波如何设置，需要只让两个需要的ID进去中断，其他的全部过滤。请问如何设置？
/*##-2- Configure the CAN1 Filter ###########################################*/
      sFilterConfig.FilterNumber = 0;
      sFilterConfig.FilterMode = CAN_FILTERMODE_IDMASK;
      sFilterConfig.FilterScale = CAN_FILTERSCALE_32BIT;
      sFilterConfig.FilterIdHigh = AllowID_F507<<5;
      sFilterConfig.FilterIdLow = 0|CAN_ID_STD;;
      sFilterConfig.FilterMaskIdHigh = 0xFFFF;
      sFilterConfig.FilterMaskIdLow = 0xFFFF;
      sFilterConfig.FilterFIFOAssignment = CAN_FIFO0;
      sFilterConfig.FilterActivation = ENABLE;
      sFilterConfig.BankNumber = 0;
      HAL_CAN_ConfigFilter(&hcan, &sFilterConfig);

      /*##-2- Configure the CAN1 Filter ###########################################*/
      sFilterConfig.FilterNumber = 1;
      sFilterConfig.FilterMode = CAN_FILTERMODE_IDMASK;
      sFilterConfig.FilterScale = CAN_FILTERSCALE_32BIT;
      sFilterConfig.FilterIdHigh = AllowID2_F507<<5;
      sFilterConfig.FilterIdLow = 0|CAN_ID_STD;;
      sFilterConfig.FilterMaskIdHigh = 0xFFFF;
      sFilterConfig.FilterMaskIdLow = 0xFFFF;
      sFilterConfig.FilterFIFOAssignment = CAN_FIFO0;
      sFilterConfig.FilterActivation = ENABLE;
      sFilterConfig.BankNumber = 0;
      HAL_CAN_ConfigFilter(&hcan, &sFilterConfig);

      HAL_CAN_Receive_IT(&hcan,CAN_FIFO0);

芯片是用STM32F103VET的。

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4个回答

xmshao 回答时间：2016-9-14 15:29:53

本帖最后由 xmshao 于 2016-9-14 16:23 编辑

既然这样你可以设置2个滤波器，使用标识符列模式。

sFilterConfig.FilterMode = CAN_FilterMode_IdList;
。。。

另外，列表模式下的话，
sFilterConfig.FilterMaskIdHigh = 0x。。。;

sFilterConfig.FilterMaskIdLow = 0x。。。应该是另外一个ID.