C++ IS_CAN_IDTYPE函数代码示例

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本文整理汇总了C++中IS_CAN_IDTYPE函数的典型用法代码示例。如果您正苦于以下问题：C++ IS_CAN_IDTYPE函数的具体用法？C++ IS_CAN_IDTYPE怎么用？C++ IS_CAN_IDTYPE使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了IS_CAN_IDTYPE函数的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: CAN_Transmit

/**
  * @brief  Initiates the transmission of a message.
  * @param CANx: where x can be 1 to select the CAN peripheral.
  * @param TxMessage: pointer to a structure which contains CAN Id, CAN
  *   DLC and CAN datas.
  * @retval : The number of the mailbox that is used for transmission
  *   or CAN_NO_MB if there is no empty mailbox.
  */
uint8_t CAN_Transmit(CAN_TypeDef* CANx, CanTxMsg* TxMessage)
{
  uint8_t transmit_mailbox = 0;
  /* Check the parameters */
  assert_param(IS_CAN_ALL_PERIPH(CANx));
  assert_param(IS_CAN_IDTYPE(TxMessage->IDE));
  assert_param(IS_CAN_RTR(TxMessage->RTR));
  assert_param(IS_CAN_DLC(TxMessage->DLC));
  /* Select one empty transmit mailbox */
  if ((CANx->TSR&TSR_TME0) == TSR_TME0)
  {
    transmit_mailbox = 0;
  }
  else if ((CANx->TSR&TSR_TME1) == TSR_TME1)
  {
    transmit_mailbox = 1;
  }
  else if ((CANx->TSR&TSR_TME2) == TSR_TME2)
  {
    transmit_mailbox = 2;
  }
  else
  {
    transmit_mailbox = CAN_NO_MB;
  }
  if (transmit_mailbox != CAN_NO_MB)
  {
    /* Set up the Id */
    CANx->sTxMailBox[transmit_mailbox].TIR &= TMIDxR_TXRQ;
    if (TxMessage->IDE == CAN_ID_STD)
    {
      assert_param(IS_CAN_STDID(TxMessage->StdId));  
      CANx->sTxMailBox[transmit_mailbox].TIR |= ((TxMessage->StdId << 21) | TxMessage->RTR);
    }
    else
    {
      assert_param(IS_CAN_EXTID(TxMessage->ExtId));
      CANx->sTxMailBox[transmit_mailbox].TIR |= ((TxMessage->ExtId<<3) | TxMessage->IDE | 
                                               TxMessage->RTR);
    }
    
    /* Set up the DLC */
    TxMessage->DLC &= (uint8_t)0x0000000F;
    CANx->sTxMailBox[transmit_mailbox].TDTR &= (uint32_t)0xFFFFFFF0;
    CANx->sTxMailBox[transmit_mailbox].TDTR |= TxMessage->DLC;
    /* Set up the data field */
    CANx->sTxMailBox[transmit_mailbox].TDLR = (((uint32_t)TxMessage->Data[3] << 24) | 
                                             ((uint32_t)TxMessage->Data[2] << 16) |
                                             ((uint32_t)TxMessage->Data[1] << 8) | 
                                             ((uint32_t)TxMessage->Data[0]));
    CANx->sTxMailBox[transmit_mailbox].TDHR = (((uint32_t)TxMessage->Data[7] << 24) | 
                                             ((uint32_t)TxMessage->Data[6] << 16) |
                                             ((uint32_t)TxMessage->Data[5] << 8) |
                                             ((uint32_t)TxMessage->Data[4]));
    /* Request transmission */
    CANx->sTxMailBox[transmit_mailbox].TIR |= TMIDxR_TXRQ;
  }
  return transmit_mailbox;
}

开发者ID:AndreAhmed，项目名称:asteroid-on-stm32，代码行数:67，代码来源:stm32f10x_can.c

示例2: CAN_Transmit

/**
  * @brief  Initiates the transmission of a message.
  * @param  CANx: Select the CAN peripheral.
  *         This parameter can be one of the following values:
  *         CAN1, CAN2.
  * @param  BufferNumber: the number of the buffer that is used for transmission.
  * @param  TxMessage: pointer to a CAN_TxMsgTypeDef structure.
  * @retval None
  */
void CAN_Transmit(MDR_CAN_TypeDef* CANx, uint32_t BufferNumber, CAN_TxMsgTypeDef* TxMessage)
{
  uint32_t tmpreg;

  /* Check the parameters */
  assert_param(IS_CAN_ALL_PERIPH(CANx));
  assert_param(IS_CAN_BUFFER(BufferNumber));
  assert_param(IS_CAN_IDTYPE(TxMessage->IDE));
  assert_param(IS_CAN_DLC(TxMessage->DLC));
  assert_param(IS_FUNCTIONAL_STATE(TxMessage->PRIOR_0));
  assert_param(IS_CAN_ID(TxMessage->ID));

  /* Configure CAN_BUF_ID and CAN_BUF_DLC registers */
  /* Packet format */
  if (TxMessage->IDE == CAN_ID_STD)
  {
    /* Standard */
    tmpreg = CAN_BUF_DLC_STD + TxMessage->DLC;
  }
  else
  {
    /* Extended */
    tmpreg = CAN_BUF_DLC_EXT + TxMessage->DLC;
  }
  CANx->CAN_BUF[BufferNumber].DLC = tmpreg;
  CANx->CAN_BUF[BufferNumber].ID  = TxMessage->ID;

  /* Buffer data unit */
  CANx->CAN_BUF[BufferNumber].DATAL = TxMessage->Data[0];
  CANx->CAN_BUF[BufferNumber].DATAH = TxMessage->Data[1];

  /* Configure CAN_BUF_CON register */
  tmpreg = 0;
  /* Transmission priority */
  if (TxMessage->PRIOR_0 != DISABLE)
  {
    tmpreg |= CAN_BUF_CON_PRIOR_0;
  }
  /* Set transmission request bit */
  tmpreg |= CAN_BUF_CON_TX_REQ;
  /* Enable buffer */
  tmpreg |= CAN_BUF_CON_EN;

  CANx->BUF_CON[BufferNumber] = tmpreg;
}

开发者ID:eldarkg，项目名称:emdr1986x-std-per-lib，代码行数:54，代码来源:MDR32F9Qx_can.c

示例3: CAN_SendRTR

/**
  * @brief  Initiates the Remote Transfer Request.
  * @param  CANx: Select the CAN peripheral.
  *         This parameter can be one of the following values:
  *         CAN1, CAN2.
  * @param  BufferNumber: the number of the buffer that is used for transmission.
  * @param  RTRMessage: pointer to a CAN_RTRMessageTypeDef structure.
  * @retval None
  */
void CAN_SendRTR(MDR_CAN_TypeDef* CANx, uint32_t BufferNumber, CAN_RTRMessageTypeDef* RTRMessage)
{
  uint32_t tmpreg;

  /* Check the parameters */
  assert_param(IS_CAN_ALL_PERIPH(CANx));
  assert_param(IS_CAN_BUFFER(BufferNumber));
  assert_param(IS_CAN_IDTYPE(RTRMessage->IDE));
  assert_param(IS_FUNCTIONAL_STATE(RTRMessage->PRIOR_0));
  assert_param(IS_CAN_ID(RTRMessage->ID));

  /* Configure CAN_BUF_ID and CAN_BUF_DLC registers */
  /* Packet format */
  if (RTRMessage->IDE == CAN_ID_STD)
  {
    /* Standard */
    tmpreg = CAN_BUF_DLC_STD;
  }
  else
  {
    /* Extended */
    tmpreg = CAN_BUF_DLC_EXT;
  }
  CANx->CAN_BUF[BufferNumber].DLC = tmpreg + CAN_RTR_REMOTE;
  CANx->CAN_BUF[BufferNumber].ID  = RTRMessage->ID;

  /* Configure CAN_BUF_CON register */
  tmpreg = 0;
  /* Transmission priority */
  if (RTRMessage->PRIOR_0 != DISABLE)
  {
    tmpreg |= CAN_BUF_CON_PRIOR_0;
  }
  /* Set transmission request bit */
  tmpreg |= CAN_BUF_CON_TX_REQ;
  /* Enable buffer */
  tmpreg |= CAN_BUF_CON_EN;

  CANx->BUF_CON[BufferNumber] = tmpreg;
}

开发者ID:eldarkg，项目名称:emdr1986x-std-per-lib，代码行数:49，代码来源:MDR32F9Qx_can.c

示例4: CAN_RTRReply

void CAN_RTRReply(MDR_CAN_TypeDef* CANx, uint32_t BufferNumber, CAN_RTRReplyTypeDef* RTRReplyMessage)
{
  uint32_t tmpreg;

  /* Check the parameters */
  assert_param(IS_CAN_ALL_PERIPH(CANx));
  assert_param(IS_CAN_BUFFER(BufferNumber));
  assert_param(IS_CAN_IDTYPE(RTRReplyMessage->IDE));
  assert_param(IS_CAN_ID(RTRReplyMessage->ID));
  assert_param(IS_CAN_DLC(RTRReplyMessage->DLC));

  /* Configure CAN_BUF_ID and CAN_BUF_DLC registers */
  /* Configure CAN_BUF_ID and CAN_BUF_DLC registers */
  /* Packet format */
  if (RTRReplyMessage->IDE == CAN_ID_STD)
  {
    /* Standard */
    tmpreg = CAN_BUF_DLC_STD + RTRReplyMessage->DLC;
  }
  else
  {
    /* Extended */
    tmpreg = CAN_BUF_DLC_EXT + RTRReplyMessage->DLC;
  }
  CANx->CAN_BUF[BufferNumber].DLC = tmpreg;
  CANx->CAN_BUF[BufferNumber].ID  = RTRReplyMessage->ID;

  /* Buffer data unit */
  CANx->CAN_BUF[BufferNumber].DATAL = RTRReplyMessage->Data[0];
  CANx->CAN_BUF[BufferNumber].DATAH = RTRReplyMessage->Data[1];

  /* Configure CAN_BUF_CON register */
  /* Set RTR_EN bit */
  tmpreg = CAN_STATUS_RTR_EN;
  /* Enable buffer */
  tmpreg |= CAN_BUF_CON_EN;

  CANx->BUF_CON[BufferNumber] = tmpreg;
}

开发者ID:eldarkg，项目名称:emdr1986x-std-per-lib，代码行数:39，代码来源:MDR32F9Qx_can.c

示例5: CAN_Transmit

// We have our own version of CAN transmit so we can handle Timeout=0 correctly.
STATIC HAL_StatusTypeDef CAN_Transmit(CAN_HandleTypeDef *hcan, uint32_t Timeout) {
    uint32_t transmitmailbox;
    uint32_t tickstart;
    uint32_t rqcpflag;
    uint32_t txokflag;

    // Check the parameters
    assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE));
    assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR));
    assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC));

    // Select one empty transmit mailbox
    if ((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0) {
        transmitmailbox = CAN_TXMAILBOX_0;
        rqcpflag = CAN_FLAG_RQCP0;
        txokflag = CAN_FLAG_TXOK0;
    } else if ((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1) {
        transmitmailbox = CAN_TXMAILBOX_1;
        rqcpflag = CAN_FLAG_RQCP1;
        txokflag = CAN_FLAG_TXOK1;
    } else if ((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2) {
        transmitmailbox = CAN_TXMAILBOX_2;
        rqcpflag = CAN_FLAG_RQCP2;
        txokflag = CAN_FLAG_TXOK2;
    } else {
        transmitmailbox = CAN_TXSTATUS_NOMAILBOX;
    }

    if (transmitmailbox != CAN_TXSTATUS_NOMAILBOX) {
        // Set up the Id
        hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ;
        if (hcan->pTxMsg->IDE == CAN_ID_STD) {
            assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId));
            hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->StdId << 21) | \
                                                        hcan->pTxMsg->RTR);
        } else {
            assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId));
            hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->ExtId << 3) | \
                                                        hcan->pTxMsg->IDE | \
                                                        hcan->pTxMsg->RTR);
        }

        // Set up the DLC
        hcan->pTxMsg->DLC &= (uint8_t)0x0000000F;
        hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0;
        hcan->Instance->sTxMailBox[transmitmailbox].TDTR |= hcan->pTxMsg->DLC;

        // Set up the data field
        hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) |
                                                ((uint32_t)hcan->pTxMsg->Data[2] << 16) |
                                                ((uint32_t)hcan->pTxMsg->Data[1] << 8) |
                                                ((uint32_t)hcan->pTxMsg->Data[0]));
        hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) |
                                                ((uint32_t)hcan->pTxMsg->Data[6] << 16) |
                                                ((uint32_t)hcan->pTxMsg->Data[5] << 8) |
                                                ((uint32_t)hcan->pTxMsg->Data[4]));
        // Request transmission
        hcan->Instance->sTxMailBox[transmitmailbox].TIR |= CAN_TI0R_TXRQ;

        if (Timeout == 0) {
            return HAL_OK;
        }

        // Get tick
        tickstart = HAL_GetTick();
        // Check End of transmission flag
        while (!(__HAL_CAN_TRANSMIT_STATUS(hcan, transmitmailbox))) {
            // Check for the Timeout
            if (Timeout != HAL_MAX_DELAY) {
                if ((HAL_GetTick() - tickstart) > Timeout) {
                    // When the timeout expires, we try to abort the transmission of the packet
                    __HAL_CAN_CANCEL_TRANSMIT(hcan, transmitmailbox);
                    while (!__HAL_CAN_GET_FLAG(hcan, rqcpflag)) {
                    }
                    if (__HAL_CAN_GET_FLAG(hcan, txokflag)) {
                        // The abort attempt failed and the message was sent properly
                        return HAL_OK;
                    } else {
                        return HAL_TIMEOUT;
                    }
                }
            }
        }
        return HAL_OK;
    } else {
        return HAL_BUSY;
    }
}

开发者ID:ShrimpingIt，项目名称:micropython，代码行数:89，代码来源:can.c

示例6: HAL_CAN_Transmit_IT

/**
  * @brief  Initiates and transmits a CAN frame message.
  * @param  hcan: pointer to a CAN_HandleTypeDef structure that contains
  *         the configuration information for the specified CAN.  
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_CAN_Transmit_IT(CAN_HandleTypeDef* hcan)
{
  uint32_t transmitmailbox = CAN_TXSTATUS_NOMAILBOX;

  /* Check the parameters */
  assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE));
  assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR));
  assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC));
  
  if((hcan->State == HAL_CAN_STATE_READY) || (hcan->State == HAL_CAN_STATE_BUSY_RX))
  {
    /* Process Locked */
    __HAL_LOCK(hcan);
    
    /* Select one empty transmit mailbox */
    if((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0)
    {
      transmitmailbox = 0;
    }
    else if((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1)
    {
      transmitmailbox = 1;
    }
    else if((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2)
    {
      transmitmailbox = 2;
    }

    if(transmitmailbox != CAN_TXSTATUS_NOMAILBOX)
    {
      /* Set up the Id */
      hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ;
      if(hcan->pTxMsg->IDE == CAN_ID_STD)
      {
        assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId));  
        hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->StdId << 21) | \
                                                  hcan->pTxMsg->RTR);
      }
      else
      {
        assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId));
        hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->ExtId << 3) | \
                                                  hcan->pTxMsg->IDE | \
                                                  hcan->pTxMsg->RTR);
      }
    
      /* Set up the DLC */
      hcan->pTxMsg->DLC &= (uint8_t)0x0000000F;
      hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0;
      hcan->Instance->sTxMailBox[transmitmailbox].TDTR |= hcan->pTxMsg->DLC;

      /* Set up the data field */
      hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) | 
                                             ((uint32_t)hcan->pTxMsg->Data[2] << 16) |
                                             ((uint32_t)hcan->pTxMsg->Data[1] << 8) | 
                                             ((uint32_t)hcan->pTxMsg->Data[0]));
      hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) | 
                                             ((uint32_t)hcan->pTxMsg->Data[6] << 16) |
                                             ((uint32_t)hcan->pTxMsg->Data[5] << 8) |
                                             ((uint32_t)hcan->pTxMsg->Data[4]));
    
      if(hcan->State == HAL_CAN_STATE_BUSY_RX) 
      {
        /* Change CAN state */
        hcan->State = HAL_CAN_STATE_BUSY_TX_RX;
      }
      else
      {
        /* Change CAN state */
        hcan->State = HAL_CAN_STATE_BUSY_TX;
      }
      
      /* Set CAN error code to none */
      hcan->ErrorCode = HAL_CAN_ERROR_NONE;
      
      /* Process Unlocked */
      __HAL_UNLOCK(hcan);
      
      /* Enable Error warning Interrupt */
      __HAL_CAN_ENABLE_IT(hcan, CAN_IT_EWG);
      
      /* Enable Error passive Interrupt */
      __HAL_CAN_ENABLE_IT(hcan, CAN_IT_EPV);
      
      /* Enable Bus-off Interrupt */
      __HAL_CAN_ENABLE_IT(hcan, CAN_IT_BOF);
      
      /* Enable Last error code Interrupt */
      __HAL_CAN_ENABLE_IT(hcan, CAN_IT_LEC);
      
      /* Enable Error Interrupt */
      __HAL_CAN_ENABLE_IT(hcan, CAN_IT_ERR);
      
      /* Enable Transmit mailbox empty Interrupt */
//.........这里部分代码省略.........

开发者ID:AsamQi，项目名称:mbed，代码行数:101，代码来源:stm32f0xx_hal_can.c

示例7: HAL_CAN_Transmit

/**
  * @brief  Initiates and transmits a CAN frame message.
  * @param  hcan: pointer to a CAN_HandleTypeDef structure that contains
  *         the configuration information for the specified CAN.  
  * @param  Timeout: Timeout duration.
  * @retval HAL status
  */
HAL_StatusTypeDef HAL_CAN_Transmit(CAN_HandleTypeDef* hcan, uint32_t Timeout)
{
  uint32_t transmitmailbox = CAN_TXSTATUS_NOMAILBOX;
  uint32_t tickstart = 0;

  /* Check the parameters */
  assert_param(IS_CAN_IDTYPE(hcan->pTxMsg->IDE));
  assert_param(IS_CAN_RTR(hcan->pTxMsg->RTR));
  assert_param(IS_CAN_DLC(hcan->pTxMsg->DLC));
  
  /* Process locked */
  __HAL_LOCK(hcan);
  
  if(hcan->State == HAL_CAN_STATE_BUSY_RX) 
  {
    /* Change CAN state */
    hcan->State = HAL_CAN_STATE_BUSY_TX_RX;
  }
  else
  {
    /* Change CAN state */
    hcan->State = HAL_CAN_STATE_BUSY_TX;
  }
  
  /* Select one empty transmit mailbox */
  if ((hcan->Instance->TSR&CAN_TSR_TME0) == CAN_TSR_TME0)
  {
    transmitmailbox = 0;
  }
  else if ((hcan->Instance->TSR&CAN_TSR_TME1) == CAN_TSR_TME1)
  {
    transmitmailbox = 1;
  }
  else if ((hcan->Instance->TSR&CAN_TSR_TME2) == CAN_TSR_TME2)
  {
    transmitmailbox = 2;
  }

  if (transmitmailbox != CAN_TXSTATUS_NOMAILBOX)
  {
    /* Set up the Id */
    hcan->Instance->sTxMailBox[transmitmailbox].TIR &= CAN_TI0R_TXRQ;
    if (hcan->pTxMsg->IDE == CAN_ID_STD)
    {
      assert_param(IS_CAN_STDID(hcan->pTxMsg->StdId));  
      hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->StdId << 21) | \
                                                  hcan->pTxMsg->RTR);
    }
    else
    {
      assert_param(IS_CAN_EXTID(hcan->pTxMsg->ExtId));
      hcan->Instance->sTxMailBox[transmitmailbox].TIR |= ((hcan->pTxMsg->ExtId << 3) | \
                                                  hcan->pTxMsg->IDE | \
                                                  hcan->pTxMsg->RTR);
    }
    
    /* Set up the DLC */
    hcan->pTxMsg->DLC &= (uint8_t)0x0000000F;
    hcan->Instance->sTxMailBox[transmitmailbox].TDTR &= (uint32_t)0xFFFFFFF0;
    hcan->Instance->sTxMailBox[transmitmailbox].TDTR |= hcan->pTxMsg->DLC;

    /* Set up the data field */
    hcan->Instance->sTxMailBox[transmitmailbox].TDLR = (((uint32_t)hcan->pTxMsg->Data[3] << 24) | 
                                             ((uint32_t)hcan->pTxMsg->Data[2] << 16) |
                                             ((uint32_t)hcan->pTxMsg->Data[1] << 8) | 
                                             ((uint32_t)hcan->pTxMsg->Data[0]));
    hcan->Instance->sTxMailBox[transmitmailbox].TDHR = (((uint32_t)hcan->pTxMsg->Data[7] << 24) | 
                                             ((uint32_t)hcan->pTxMsg->Data[6] << 16) |
                                             ((uint32_t)hcan->pTxMsg->Data[5] << 8) |
                                             ((uint32_t)hcan->pTxMsg->Data[4]));
    /* Request transmission */
    hcan->Instance->sTxMailBox[transmitmailbox].TIR |= CAN_TI0R_TXRQ;
  
    /* Get timeout */
    tickstart = HAL_GetTick();   
  
    /* Check End of transmission flag */
    while(!(__HAL_CAN_TRANSMIT_STATUS(hcan, transmitmailbox)))
    {
      /* Check for the Timeout */
      if(Timeout != HAL_MAX_DELAY)
      {
        if((Timeout == 0) || ((HAL_GetTick() - tickstart) > Timeout))
        {
          hcan->State = HAL_CAN_STATE_TIMEOUT;
          /* Process unlocked */
          __HAL_UNLOCK(hcan);
          return HAL_TIMEOUT;
        }
      }
    }
    if(hcan->State == HAL_CAN_STATE_BUSY_TX_RX) 
    {
//.........这里部分代码省略.........

开发者ID:AsamQi，项目名称:mbed，代码行数:101，代码来源:stm32f0xx_hal_can.c

示例8: CAN_Transmit

/*******************************************************************************
* Function Name  : CAN_Transmit
* Description    : Initiates the transmission of a message.
* Input          : TxMessage: pointer to a structure which contains CAN Id, CAN
*                  DLC and CAN datas.
* Output         : None.
* Return         : The number of the mailbox that is used for transmission
*                  or CAN_NO_MB if there is no empty mailbox.
*******************************************************************************/
u8 CAN_Transmit(CanTxMsg* TxMessage)
{
  u8 TransmitMailbox = 0;

  /* Check the parameters */
  assert_param(IS_CAN_STDID(TxMessage->StdId));
  assert_param(IS_CAN_EXTID(TxMessage->StdId));
  assert_param(IS_CAN_IDTYPE(TxMessage->IDE));
  assert_param(IS_CAN_RTR(TxMessage->RTR));
  assert_param(IS_CAN_DLC(TxMessage->DLC));

  /* Select one empty transmit mailbox */
  if ((CAN->TSR&TSR_TME0) == TSR_TME0)
  {
    TransmitMailbox = 0;
  }
  else if ((CAN->TSR&TSR_TME1) == TSR_TME1)
  {
    TransmitMailbox = 1;
  }
  else if ((CAN->TSR&TSR_TME2) == TSR_TME2)
  {
    TransmitMailbox = 2;
  }
  else
  {
    TransmitMailbox = CAN_NO_MB;
  }

  if (TransmitMailbox != CAN_NO_MB)
  {
    /* Set up the Id */
    CAN->sTxMailBox[TransmitMailbox].TIR &= TMIDxR_TXRQ;
    if (TxMessage->IDE == CAN_ID_STD)
    {
      TxMessage->StdId &= (u32)0x000007FF;
      TxMessage->StdId = TxMessage->StdId << 21;
      
      CAN->sTxMailBox[TransmitMailbox].TIR |= (TxMessage->StdId | TxMessage->IDE |
                                               TxMessage->RTR);
    }
    else
    {
      TxMessage->ExtId &= (u32)0x1FFFFFFF;
      TxMessage->ExtId <<= 3;

      CAN->sTxMailBox[TransmitMailbox].TIR |= (TxMessage->ExtId | TxMessage->IDE | 
                                               TxMessage->RTR);
    }
    
    /* Set up the DLC */
    TxMessage->DLC &= (u8)0x0000000F;
    CAN->sTxMailBox[TransmitMailbox].TDTR &= (u32)0xFFFFFFF0;
    CAN->sTxMailBox[TransmitMailbox].TDTR |= TxMessage->DLC;

    /* Set up the data field */
    CAN->sTxMailBox[TransmitMailbox].TDLR = (((u32)TxMessage->Data[3] << 24) | 
                                             ((u32)TxMessage->Data[2] << 16) |
                                             ((u32)TxMessage->Data[1] << 8) | 
                                             ((u32)TxMessage->Data[0]));
    CAN->sTxMailBox[TransmitMailbox].TDHR = (((u32)TxMessage->Data[7] << 24) | 
                                             ((u32)TxMessage->Data[6] << 16) |
                                             ((u32)TxMessage->Data[5] << 8) |
                                             ((u32)TxMessage->Data[4]));

    /* Request transmission */
    CAN->sTxMailBox[TransmitMailbox].TIR |= TMIDxR_TXRQ;
  }

  return TransmitMailbox;
}

开发者ID:BackupTheBerlios，项目名称:elua-svn，代码行数:80，代码来源:stm32f10x_can.c

注：本文中的IS_CAN_IDTYPE函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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C++ IS_CAN_IDTYPE函数代码示例

示例1: CAN_Transmit

示例2: CAN_Transmit

示例3: CAN_SendRTR

示例4: CAN_RTRReply

示例5: CAN_Transmit

示例6: HAL_CAN_Transmit_IT

示例7: HAL_CAN_Transmit

示例8: CAN_Transmit

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