STM32怎么实现多个节点

tangzuguo

现在我有ABC三块板，A做主机BC做从机，AB,AC两两单独通信正常，但是一接上另一个就接收不到数据了.问问高手知道原因吗？
A机can初始化程序
  CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
  CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
  CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
  CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
  CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
  CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
  CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
  CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
  CAN_FilterInit(&CAN_FilterInitStructure);

A机main函数里CAN的发送程序

TxMessage.StdId = 0x000;   
  TxMessage.ExtId = Master_ID;
  TxMessage.RTR = CAN_RTR_DATA;        /*!< Data frame */
  TxMessage.IDE = CAN_ID_EXT;//Use  Extended  Id

  TxMessage.DLC = 8;
  TxMessage.Data[0]= Master_ID ;  //        ID高8位

  /* Infinite loop */
  while(1)
  {
    CAN_Transmit(CAN1,&TxMessage);
                Delay(Slave_Number+6);
       
  }
B.C机can初始化程序
  CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
  CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
  CAN_FilterInitStructure.CAN_FilterIdHigh = (((u32)Master_ID<<3)&0xFFFF0000)>>16;
  CAN_FilterInitStructure.CAN_FilterIdLow = (((u32)Master_ID<<3)|CAN_ID_EXT|CAN_RTR_DATA)&0xFFFF;
  CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0xFFFF;
  CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0xFFFF;
  CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
  CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
  CAN_FilterInit(&CAN_FilterInitStructure);
B,C机main函数里CAN的发送程序
TxMessage.StdId = 0x000;   
  TxMessage.ExtId = Slave_ID;
  TxMessage.RTR = CAN_RTR_DATA;        /*!< Data frame */
  TxMessage.IDE = CAN_ID_EXT;//Use  Extended  Id

  TxMessage.DLC = 8;

  /* Infinite loop */
  while(1)
  {         
    CAN_Transmit(CAN1,&TxMessage);
                Delay(Slave_ID);
  }
麻烦各位解答一下谢谢了！