CAN实验.doc

继做了DAC实验后，继续进行第15个实验-CAN实验,本实验 Can总线的环回测试，LED2亮----说明100k/S 的轮询方式收发正常。LED3亮----说明500k/S 的中断方式收发正常。
typedef enum {=ENABLE;
  CAN_FilterInit(&CAN_FilterInitStructure);
 
  =0x11;
  =CAN_RTR_DATA;
  =CAN_ID_STD;
  =2;
  [0]=0xCA;
  [1]=0xFE;
  TransmitMailbox=CAN_Transmit(CAN1, &TxMessage);
  i = 0;
  while((CAN_TransmitStatus(CAN1, TransmitMailbox) != CANTXOK) && (i != 0xFF))
  {
    i++;
  }
  i = 0;
  while((CAN_MessagePending(CAN1, CAN_FIFO0) < 1) && (i != 0xFF))
  {
    i++;
  }
 
  =0x00;
  =CAN_ID_STD;
  =0;
  [0]=0x00;
  [1]=0x00;
  CAN_Receive(CAN1, CAN_FIFO0, &RxMessage);
  if (!=0x11)
  {
    return FAILED; 
  }
  if (!=CAN_ID_STD)
  {
    return FAILED;
  }
  if (!=2)
  {
    return FAILED; 
  }
  if (([0]<<8|[1])!=0xCAFE)
  {
    return FAILED;
  }
 
  return PASSED;
}
TestStatus CAN_Interrupt(void)
{
  CAN_InitTypeDef        CAN_InitStructure;
  CAN_FilterInitTypeDef  CAN_FilterInitStructure;
  CanTxMsg TxMessage;
  uint32_t i = 0;
 
  CAN_DeInit(CAN1);
  CAN_StructInit(&CAN_InitStructure);
 
  =DISABLE;
  CAN_InitStru