pmu/Drivers/BSP/usart.c

//
// Created by lidong on 25-8-4.
//

#include "usart.h"

#ifdef HAL_UART_MODULE_ENABLED
UART_HandleTypeDef DebugUartHandle;
/**
  * @brief  DEBUG_USART GPIO Config,Mode Config,115200 8-N-1
  * @param  None
  * @retval None
  */
void USART_Config(void)
{
    GPIO_InitTypeDef  GPIO_InitStruct;

#if  defined(__GNUC__)
    setvbuf(stdout, NULL, _IONBF, 0 );
#endif

    __HAL_RCC_USART2_CLK_ENABLE();

    DebugUartHandle.Instance          = DEBUG_USART;

    DebugUartHandle.Init.BaudRate     = USART_BAUDRATE;
    DebugUartHandle.Init.WordLength   = UART_WORDLENGTH_8B;
    DebugUartHandle.Init.StopBits     = UART_STOPBITS_1;
    DebugUartHandle.Init.Parity       = UART_PARITY_NONE;
    DebugUartHandle.Init.HwFlowCtl    = UART_HWCONTROL_NONE;
    DebugUartHandle.Init.Mode         = UART_MODE_TX_RX;
    DebugUartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
    DebugUartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;

    HAL_UART_Init(&DebugUartHandle);

    USART_RX_GPIO_CLK_ENABLE();
    USART_TX_GPIO_CLK_ENABLE();

    /**USART GPIO Configuration
      PA2     ------> USART1_TX
      PA3     ------> USART1_RX
      */
    GPIO_InitStruct.Pin = USART_TX_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = USART_TX_AF;
    HAL_GPIO_Init(USART_TX_GPIO_PORT, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = USART_RX_PIN;
    GPIO_InitStruct.Alternate = USART_RX_AF;

    HAL_GPIO_Init(USART_RX_GPIO_PORT, &GPIO_InitStruct);

    /* ENABLE NVIC */
    HAL_NVIC_SetPriority(USART_IRQ,0,1);
    HAL_NVIC_EnableIRQ(USART_IRQ );
}

#if (defined (__CC_ARM)) || (defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
/**
  * @brief  writes a character to the usart
  * @param  ch
  *         *f
  * @retval the character
  */
int fputc(int ch, FILE *f)
{
  /* Send a byte to USART */
  HAL_UART_Transmit(&DebugUartHandle, (uint8_t *)&ch, 1, 1000);

  return (ch);
}

/**
  * @brief  get a character from the usart
  * @param  *f
  * @retval a character
  */
int fgetc(FILE *f)
{
  int ch;
  HAL_UART_Receive(&DebugUartHandle, (uint8_t *)&ch, 1, 1000);
  return (ch);
}

#elif defined(__ICCARM__)
/**
  * @brief  writes a character to the usart
  * @param  ch
  *         *f
  * @retval the character
  */
int putchar(int ch)
{
  /* Send a byte to USART */
  HAL_UART_Transmit(&DebugUartHandle, (uint8_t *)&ch, 1, 1000);

  return (ch);
}
#elif  defined(__GNUC__)
/**
  * @brief  writes a character to the usart
  * @param  ch
  * @retval the character
  */
int __io_putchar(int ch)
{
  /* Send a byte to USART */
  HAL_UART_Transmit(&DebugUartHandle, (uint8_t *)&ch, 1, 1000);

  return ch;
}

int _write(int file, char *ptr, int len)
{
  (void)file;
  int DataIdx;
  for (DataIdx=0;DataIdx<len;DataIdx++)
  {
    __io_putchar(*ptr++);
  }
  return len;
}
#endif

#endif