C++ (Cpp) HalUARTReadDMA示例

示例#1

文件： hal_uart.c 项目： tanxjian/BLE-CC254x-1.3.2

/*****************************************************************************
 * @fn      HalUARTRead
 *
 * @brief   Read a buffer from the UART
 *
 * @param   port - USART module designation
 *          buf  - valid data buffer at least 'len' bytes in size
 *          len  - max length number of bytes to copy to 'buf'
 *
 * @return  length of buffer that was read
 *****************************************************************************/
uint16 HalUARTRead(uint8 port, uint8 *buf, uint16 len)
{
#if (HAL_UART_DMA == 1)
  if (port == HAL_UART_PORT_0)  return HalUARTReadDMA(buf, len);
#endif
#if (HAL_UART_DMA == 2)
  if (port == HAL_UART_PORT_1)  return HalUARTReadDMA(buf, len);
#endif
#if (HAL_UART_ISR == 1)
  if (port == HAL_UART_PORT_0)  return HalUARTReadISR(buf, len);
#endif
#if (HAL_UART_ISR == 2)
  if (port == HAL_UART_PORT_1)  return HalUARTReadISR(buf, len);
#endif
#if (HAL_UART_SPI == 1)
  if (port == HAL_UART_PORT_0)  return HalUARTReadSPI(buf, len);
#endif
#if (HAL_UART_SPI == 2)
  if (port == HAL_UART_PORT_1)  return HalUARTReadSPI(buf, len);
#endif

#if HAL_UART_USB
  return HalUARTRx(buf, len);
#else
  #if (HAL_UART_DMA == 0) && (HAL_UART_ISR == 0) && (HAL_UART_SPI == 0)
    // UART is not enabled. Do nothing.
    (void) port;   // unused argument
    (void) buf;   // unused argument
    (void) len;   // unused argument
  #endif
  return 0;
#endif
}

示例#2

文件： hal_uart.c 项目： KimiRaikking/z-stack

/*****************************************************************************
 * @fn      HalUARTRead
 *
 * @brief   Read a buffer from the UART
 *
 * @param   port - USART module designation
 *          buf  - valid data buffer at least 'len' bytes in size
 *          len  - max length number of bytes to copy to 'buf'
 *
 * @return  length of buffer that was read
 *****************************************************************************/
uint16 HalUARTRead(uint8 port, uint8 *buf, uint16 len)
{
  (void)port;
  (void)buf;
  (void)len;

#if (HAL_UART_DMA == 1)
  if (port == HAL_UART_PORT_0)  return HalUARTReadDMA(buf, len);
#endif
#if (HAL_UART_DMA == 2)
  if (port == HAL_UART_PORT_1)  return HalUARTReadDMA(buf, len);
#endif
#if (HAL_UART_ISR == 1)
  if (port == HAL_UART_PORT_0)  return HalUARTReadISR(buf, len);
#endif
#if (HAL_UART_ISR == 2)
  if (port == HAL_UART_PORT_1)  return HalUARTReadISR(buf, len);
#endif

#if HAL_UART_USB
  return HalUARTRx(buf, len);
#else
  return 0;
#endif
}