STM8S208C8T6 CAN 不能发送报文，接收没有应答

Terabithia 提问时间：2017-12-16 11:55 /

问答
是否解决:

求助！！！！！！我用STM8S208C8做的程序，烧录以后接收不到报文，MCU的TX脚也一直为高。
如果在CAN总线上接入另外一个USBCAN，调试的时候就可以进入接收中断了，但是发送还是不成功，而且用示波器看MCU的TX脚还是一直为高电平，有大佬知道是因为什么吗~~~

以下为初始化代码：
void CAN_Config(void)
{
  CAN_InitStatus_TypeDef status = CAN_InitStatus_Failed;

  /* Filter Parameters */
  CAN_FilterNumber_TypeDef CAN_FilterNumber;
  FunctionalState CAN_FilterActivation;
  CAN_FilterMode_TypeDef CAN_FilterMode;
  CAN_FilterScale_TypeDef CAN_FilterScale;
  uint8_t CAN_FilterID1;
  uint8_t CAN_FilterID2;
  uint8_t CAN_FilterID3;
  uint8_t CAN_FilterID4;
  uint8_t CAN_FilterIDMask1;
  uint8_t CAN_FilterIDMask2;
  uint8_t CAN_FilterIDMask3;
  uint8_t CAN_FilterIDMask4;

  /* Init Parameters*/
  CAN_MasterCtrl_TypeDef CAN_MasterCtrl;
  CAN_Mode_TypeDef CAN_Mode;
  CAN_SynJumpWidth_TypeDef CAN_SynJumpWidth;
  CAN_BitSeg1_TypeDef CAN_BitSeg1;
  CAN_BitSeg2_TypeDef CAN_BitSeg2;
  uint8_t CAN_Prescaler;

  /* CAN register init */
  CAN_DeInit();

/* CAN filter init */
  CAN_FilterNumber = CAN_FilterNumber_0;
  CAN_FilterActivation = ENABLE;
  CAN_FilterMode = CAN_FilterMode_IdMask;
  CAN_FilterScale = CAN_FilterScale_32Bit;
  CAN_FilterID1=0;
  CAN_FilterID2=0;
  CAN_FilterID3=0;
  CAN_FilterID4=0;
  CAN_FilterIDMask1=0;
  CAN_FilterIDMask2=0;
  CAN_FilterIDMask3=0;
  CAN_FilterIDMask4=0;
  CAN_FilterInit(CAN_FilterNumber, CAN_FilterActivation, CAN_FilterMode,\
               CAN_FilterScale,CAN_FilterID1, CAN_FilterID2, CAN_FilterID3,\
               CAN_FilterID4,CAN_FilterIDMask1, CAN_FilterIDMask2,\
               CAN_FilterIDMask3, CAN_FilterIDMask4);

  /* CAN  init */
  CAN_MasterCtrl=CAN_MasterCtrl_AllDisabled;
  CAN_Mode = CAN_Mode_Normal;
  CAN_SynJumpWidth = CAN_SynJumpWidth_1TimeQuantum;
  CAN_BitSeg1 = CAN_BitSeg1_12TimeQuantum;
  CAN_BitSeg2 = CAN_BitSeg2_3TimeQuantum;
  CAN_Prescaler = 2;
  status = CAN_Init(CAN_MasterCtrl, CAN_Mode, CAN_SynJumpWidth, CAN_BitSeg1, \
                  CAN_BitSeg2, CAN_Prescaler);

  /* Enable Fifo message pending interrupt*/
  /* Message reception is done by CAN_RX ISR*/
  CAN_ITConfig(CAN_IT_FMP, ENABLE);
}

/***************************************************************************//**
* @brief    外设初始化函数.
* @return 无.
* @param    无.
* @warning 该函数将在进入主循环之前调用.
* *************************************************************************** */
static void AppL_PeriphInit(void)
{
/*GPIO Init*/
GPIO_DeInit(GPIOE);
GPIO_DeInit(GPIOD);

GPIO_Init(GPIOD,GPIO_PIN_4,GPIO_MODE_OUT_PP_LOW_SLOW);/*Voice_Mute*/
GPIO_Init(GPIOE,GPIO_PIN_2,GPIO_MODE_OUT_PP_LOW_SLOW);/*Voice_PWM2*/
GPIO_Init(GPIOE,GPIO_PIN_3,GPIO_MODE_OUT_PP_LOW_SLOW);/*STB*/
GPIO_Init(GPIOD,GPIO_PIN_2,GPIO_MODE_OUT_PP_LOW_SLOW);/*LED*/

/*Clock module init*/
CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);

/*Can Controller Init*/
CAN_Config();
}

/***************************************************************************//**
* @brief    CAN接收中断函数.
* @return 无.
* @param    无.
* @warning 中断函数.
* *************************************************************************** */
@far @interrupt void CAN_RX_IRQ(void)
{
  /* In order to detect unexpected events during development,
   it is recommended to set a breakpoint on the following instruction.
  */
/* Receiver Receives Frame */
uint32_t liId = 0;

CAN_Id_TypeDef ide;
CAN_RTR_TypeDef rtr;
uint8_t data[8];
uint8_t dlc,i,j;

CAN_Receive();//读取缓存中的数据

giTest = CAN_GetReceivedData(0);

liId = CAN_GetReceivedId(); //读取帧ID
ide  = CAN_GetReceivedIDE();//读取帧类型(标准或扩展)
rtr  = CAN_GetReceivedRTR();//读取帧类型(数据或远程)
dlc  = CAN_GetReceivedDLC();//读取接收到的数据字节数

  for(j=0;j<NUMBER_CAN_MSG;j++)
{
if((liId == guCanMsgBuffer[j].Id) && (dlc == guCanMsgBuffer[j].Length))
{
for(i=0;i<dlc;i++)
{
guCanMsgBuffer[j].Data[i] = CAN_GetReceivedData(i);
}
guCanMsgBuffer[j].UpdatedFlag = 1;
}
}

}