C++ (Cpp) SPI_RX_RDY Exemples

Exemple #1

Fichier : _hal_uart_spi.c Projet : DRuffer/coinForth

/**************************************************************************************************
 * @fn          HalUARTPollSPI
 *
 * @brief       SPI Transport Polling Manager.
 *
 * input parameters
 *
 * None.
 *
 * output parameters
 *
 * None.
 *
 * @return      None.
 */
static void HalUARTPollSPI(void)
{
#ifdef HAL_SPI_MASTER
#else
#if defined POWER_SAVING  
  pktFound = FALSE;
#endif
  if ( ( spiRdyIsr ) || (SPI_RDY_IN()) )
  {
    CLEAR_SLEEP_MODE();

#if defined HAL_SBL_BOOT_CODE
    if(!spiTxLen)
    {   
      UxDBUF = 0x00; /* Zero out garbage from UxDBUF */
      
      HAL_DMA_ARM_CH(HAL_SPI_CH_RX); /* Arm RX DMA */

      asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); 
      asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); 
      asm("NOP");

      halIntState_t intState;      
      HAL_ENTER_CRITICAL_SECTION(intState);
      
      SPI_SET_RDY_OUT(); /* SPI_RDYOut = 0 */
      SPI_CLR_RDY_OUT(); /* SPI_RDYOut = 1 */

      HAL_EXIT_CRITICAL_SECTION(intState);
    }
#endif
#if defined POWER_SAVING      
    pktFound = TRUE;
#endif
  }
#endif

#ifdef HAL_SPI_MASTER
  if ( spiRdyIsr && !writeActive) 
  {
    spiParseRx();
  }
#else //SPI Slave
  if ( spiRdyIsr && !writeActive )
  {
     if ( !(UxCSR & CSR_ACTIVE) )
     {
       // MRDY has gone low to set spiRdyIsr
       // and has now gone high if SPI_RDY_IN
       // is false, read RXed bytes
       spiParseRx();
     }
     else
     {
       // MRDY has gone low and is still low
       // Set SRDY low to signal ready to RX
       SPI_SET_RDY_OUT();
     }
  }
#endif //HAL_SPI_MASTER

#if defined HAL_SPI_MASTER
  if( SPI_RX_RDY())
#else
  if (SPI_RX_RDY() && !spiTxLen)
#endif
  {
    if (spiCB != NULL)
    {
      spiCB((HAL_UART_SPI - 1), HAL_UART_RX_TIMEOUT);
    }
  }

#if defined POWER_SAVING
  if  ( SPI_RDY_IN()|| SPI_RX_RDY() || spiRxLen || spiTxLen || spiRdyIsr ||  pktFound || SPI_RDY_OUT() )
  {
    CLEAR_SLEEP_MODE();
  }
  else if ( (!pktFound) && (!SPI_NEW_RX_BYTE(spiRxIdx)) )
  {
    PxIEN |= SPI_RDYIn_BIT; 
    SPI_CLR_RDY_OUT();
  }
#endif
}

Exemple #2

Fichier : _hal_uart_spi.c Projet : yang325/CC2541_Peripheral

/**************************************************************************************************
 * @fn          HalUARTPollSPI
 *
 * @brief       SPI Transport Polling Manager.
 *
 * input parameters
 *
 * None.
 *
 * output parameters
 *
 * None.
 *
 * @return      None.
 */
static void HalUARTPollSPI(void)
{
#ifdef HAL_SPI_MASTER
#else
#if defined POWER_SAVING  
  pktFound = FALSE;
#endif
  if ( ( spiRdyIsr ) || (SPI_RDY_IN()) )
  {
    CLEAR_SLEEP_MODE();

#if defined HAL_SBL_BOOT_CODE
    if(!spiTxLen)
    {   
      UxDBUF = 0x00; /* Zero out garbage from UxDBUF */
      
      HAL_DMA_ARM_CH(HAL_SPI_CH_RX); /* Arm RX DMA */

      asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); 
      asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); 
      asm("NOP");

      halIntState_t intState;      
      HAL_ENTER_CRITICAL_SECTION(intState);
      
      SPI_SET_RDY_OUT(); /* SPI_RDYOut = 0 */
      SPI_CLR_RDY_OUT(); /* SPI_RDYOut = 1 */

      HAL_EXIT_CRITICAL_SECTION(intState);
    }
#endif
#if defined POWER_SAVING      
    pktFound = TRUE;
#endif
  }
#endif

#if defined HAL_SPI_MASTER  
  if (!spiTxLen) 
#else
  if ((!spiTxLen) && (!SPI_RDY_IN()))
#endif
  {
    SPI_CLR_RDY_OUT(); /* SPI_RDYOut = 1; */
    spiParseRx();
  }

#if defined HAL_SPI_MASTER
  if( SPI_RX_RDY())
#else
  if (SPI_RX_RDY() && !spiTxLen)
#endif
  {
    if (spiCB != NULL)
    {
      spiCB((HAL_UART_SPI - 1), HAL_UART_RX_TIMEOUT);
    }
  }

  if (!spiTxLen)
  {
    if ( SPI_RDY_OUT () )
    {
      SPI_CLR_RDY_OUT();  /* Clear the ready-out signal */
    }
  }

#if defined POWER_SAVING
  if  ( SPI_RDY_IN()|| SPI_RX_RDY() || spiRxLen || spiTxLen || spiRdyIsr ||  pktFound || SPI_RDY_OUT() )
  {
    CLEAR_SLEEP_MODE();
  }
  else if ( (!pktFound) && (!SPI_NEW_RX_BYTE(spiRxIdx)) )
  {
    PxIEN |= SPI_RDYIn_BIT; 
    SPI_CLR_RDY_OUT();
  }
#endif
  spiRdyIsr = 0;

}