滤波器详细配置 (slave_id为只接收的id号):
1、对扩展数据帧进行过滤:(只接收扩展数据帧)
CAN_FilterInitStructure.CAN_FilterIdHigh=(((u32)slave_id<<3)&0xFFFF0000)>>16;
CAN_FilterInitStructure.CAN_FilterIdLo=(((u32)slave_id<<3)|CAN_ID_EXT|CAN_RTR_DATA)&0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFF;
2、对扩展远程帧过滤:(只接收扩展远程帧)
CAN_FilterInitStructure.CAN_FilterIdHigh = (((u32)slave_id<<3)&0xFFFF0000)>>16;
CAN_FilterInitStructure.CAN_FilterIdLow = (((u32)slave_id<<3)|CAN_ID_EXT|CAN_RTR_REMOTE)&0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFF;
3、对标准远程帧过滤:(只接收标准远程帧)
CAN_FilterInitStructure.CAN_FilterIdHigh =(((u32)slave_id<<21)&0xffff0000)>>16;
CAN_FilterInitStructure.CAN_FilterIdLow = (((u32)slave_id<<21)|CAN_ID_STD|CAN_RTR_REMOTE)&0xffff;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFF;
4、对标准数据帧过滤:(只接收标准数据帧)
CAN_FilterInitStructure.CAN_FilterIdHigh =(((u32)slave_id<<21)&0xffff0000)>>16;
CAN_FilterInitStructure.CAN_FilterIdLow = (((u32)slave_id<<21)|CAN_ID_STD|CAN_RTR_DATA)&0xffff;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFF;
5、对扩展帧进行过滤:(只接收扩展帧)文章来源:https://www.toymoban.com/news/detail-652947.html
CAN_FilterInitStructure.CAN_FilterIdHigh =(((u32)slave_id<<3)&0xFFFF0000)>>16;
CAN_FilterInitStructure.CAN_FilterIdLow = (((u32)slave_id<<3)|CAN_ID_EXT)&0xFFF
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFC;
6、对标准帧进行过滤:(只接收标准帧)文章来源地址https://www.toymoban.com/news/detail-652947.html
CAN_FilterInitStructure.CAN_FilterIdHigh =(((u32)slave_id<<21)&0xffff0000)>>16;
CAN_FilterInitStructure.CAN_FilterIdLow = (((u32)slave_id<<21)|CAN_ID_STD)&0xffff;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFC;
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