城主，关于105的CAN问题

-405 · 2010-10-22 10:18

105带有2路CAN，在MDK 4.10B的环境下可以模拟调试，但是只能用FIFO0,FIFO1不能使用，使用FIFO1时不能正常首发数据，是不是和MDK的版本有关，MDK4.12 不能模拟调试，不论是官方的例程或是自己建立的工程，难道105的CAN只能使用FIFO0吗？
以下是初始化程序
CAN_FilterInitStructure.CAN_FilterNumber = 0;
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; //FIFO0
CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);

  CAN_FilterInitStructure.CAN_FilterNumber = 14;
  CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 1; //FIFO1
  CAN_FilterInit(&CAN_FilterInitStructure);
CAN2不能正常接收，改为 FIFO0则可以

-405 · 2010-10-22 10:34

本帖最后由 ffeige1984 于 2010-10-22 11:02 编辑

但是4.10b 模拟调试时如果进行CAN的初始化在就死在了
CAN_Init函数的
  while (((CANx->MSR & MSR_INAK) != MSR_INAK) && (wait_ack != INAK_TimeOut))
  {
wait_ack++;
  }

-405 · 2010-10-22 11:07

只是开启中断部分
         /* IT Configuration for CAN1 */
CAN_ITConfig(CAN1, CAN_IT_FMP0, ENABLE);
CAN_ITConfig(CAN1, CAN_IT_FMP1, ENABLE);
/* IT Configuration for CAN2 */
CAN_ITConfig(CAN2, CAN_IT_FMP0, ENABLE);
CAN_ITConfig(CAN2, CAN_IT_FMP1, ENABLE);

中断处理函数

void CAN1_RX0_IRQHandler(void)
{

      CAN_Receive(CAN1, CAN_FIFO0, &CAN1_RxMsg);

      //
}

void CAN1_RX1_IRQHandler(void)
{

      CAN_Receive(CAN1, CAN_FIFO1, &CAN1_RxMsg);

      //
}
void CAN2_RX0_IRQHandler(void)
{

      CAN_Receive(CAN2, CAN_FIFO0, &CAN2_RxMsg);

      //
}

void CAN2_RX1_IRQHandler(void)
{

      CAN_Receive(CAN2, CAN_FIFO1, &CAN2_RxMsg);

      //
}