CAN通信筛选器掩码模式怎么设置？？？

悠悠子衿

我的消息帧扩展帧ID为0X123FF678，我想筛选出扩展帧ID为0X003F0000的数据帧，CAN_FilterMaskIdHigh与CAN_FilterMaskIdLow该怎么设置啊？？？
我根据手册按照下面这样设置的，在开发板利用回环模式进行收发测试，无法接收数据，FIFO接收消息为0,求大佬指点。。。。

       CAN_FilterInitStructure.CAN_FilterNumber=0;                 
          CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
          CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
          CAN_FilterInitStructure.CAN_FilterIdHigh=0x003F;
          CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
          CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x00FF;
          CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
           CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;
          CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
          CAN_FilterInit(&CAN_FilterInitStructure);

唯傒

楼主解决了吗？