STM32 CAN滤波器设置请教~急~~

只看该作者 · 2015-11-25 14:51

有木有大神指导下~
我想滤标准CAN ID为 0x079B 的数据（一帧数据，多字节）
这是我的滤波器设置：
CAN_FilterInitTypeDef CAN_FilterInitStructure;
u16 maskValue = 0x7FF;

CAN_FilterInitStructure.CAN_FilterNumber = 1;
CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_16bit;
CAN_FilterInitStructure.CAN_FilterIdHigh = id1 << 5;
CAN_FilterInitStructure.CAN_FilterIdLow = id2 << 5;
CAN_FilterInitStructure.CAN_FilterMaskIdHigh = maskValue << 5;
CAN_FilterInitStructure.CAN_FilterMaskIdLow = maskValue << 5;
CAN_FilterInitStructure.CAN_FilterFIFOAssignment = CAN_FIFO0;
CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;

请问，为什么我没有滤到？是不是我的设置有问题？还是我需要在设置别的STM32库函数？
CAN_FilterInit( &CAN_FilterInitStructure );