rt-thread/bsp/acm32/acm32f0x0-nucleo/libraries/HAL_Driver/Src/HAL_UART.c

/*
  ******************************************************************************
  * @file    HAL_Uart.c
  * @version V1.0.0
  * @date    2020
  * @brief   UART HAL module driver.
  *          This file provides firmware functions to manage the following
  *          functionalities of the Universal Asynchronous Receiver Transmitter Peripheral (UART).
  *           @ Initialization and de-initialization functions
  *           @ IO operation functions
  *           @ Peripheral Control functions
  ******************************************************************************
*/
#include "ACM32Fxx_HAL.h"


/* If Use 'UART_MODE_TX_RX_DEBUG', Point to Debug Uart */
UART_TypeDef    *Uart_Debug = NULL;

/* Private function prototypes -----------------------------------------------*/
static void UART_Config_BaudRate(UART_HandleTypeDef *huart);
static HAL_StatusTypeDef HAL_UART_Wait_Tx_Done(UART_HandleTypeDef *huart);
__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
__weak void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart);

/*********************************************************************************
* Function    : HAL_UART_IRQHandler
* Description : Handle UART interrupt request.
* Input       : huart: UART handle.
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
void HAL_UART_IRQHandler(UART_HandleTypeDef *huart)
{
    uint32_t  read_bytes_number;
    uint32_t isrflags, ieits, errorflags;

#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return;
#endif

    isrflags =READ_REG(huart->Instance->RIS);
    ieits    =READ_REG(huart->Instance->IE);
    errorflags =0x00U;
    errorflags =(isrflags & (uint32_t)(UART_ICR_PEI|UART_ICR_OEI|UART_ICR_FEI|UART_ICR_BEI));

    /* Enable TXI */
    if (huart->Instance->IE & UART_IE_TXI)
    {
        if (huart->Instance->RIS & UART_RIS_TXI)
        {
            /* Clear TXI Status */
            SET_BIT(huart->Instance->ICR , UART_ICR_TXI);

            for(;;)
            {
                if(huart->lu32_TxCount == huart->lu32_TxSize)
                {
                    huart->lu8_TxBusy = false;

                    /* Disable TX interrupt */
                    CLEAR_BIT(huart->Instance->IE, UART_IE_TXI);

                    HAL_UART_TxCpltCallback(huart);
                    break;
                }

                if (READ_BIT(huart->Instance->FR, UART_FR_TXFF))
                {
                    break;
                }

                huart->Instance->DR = huart->lu8_TxData[huart->lu32_TxCount++];
            }
        }
    }

    /* RXI */
    if ((huart->Instance->IE & UART_IE_RXI || huart->Instance->IE& UART_IE_RTI) && errorflags == 0)
    {
        if (huart->Instance->RIS & UART_RIS_RXI)
        {
            read_bytes_number = 0;
            /* Clear RXI Status */
            SET_BIT(huart->Instance->ICR, UART_ICR_RXI);

            /* Receive end */
            while(huart->lu32_RxCount <huart->lu32_RxSize )
            {
                if(!READ_BIT(huart->Instance->FR, UART_FR_RXFE))
                {
                     /* Store Data in buffer */
                     huart->lu8_RxData[huart->lu32_RxCount++] = huart->Instance->DR;
                     read_bytes_number++;
                }
                else
                {
                    break;
                }
                if (read_bytes_number == huart->lu32_fifo_level_minus1)
                {
                    break;
                }
            }
            if(huart->lu32_RxCount ==huart->lu32_RxSize )
            {
                huart->lu8_RxBusy = false;

                /* Disable RX and RTI interrupt */
                CLEAR_BIT(huart->Instance->IE, (UART_IE_RXI|UART_IE_RTI));

                /* clear error interrupt */
                CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);

                HAL_UART_RxCpltCallback(huart);
           }
        }
        else if(huart->Instance->RIS & UART_RIS_RTI)
        {
            /*clear RTI Status */
            SET_BIT(huart->Instance->ICR ,UART_ICR_RTI);

            while(!READ_BIT(huart->Instance->FR, UART_FR_RXFE))
            {
                huart->lu8_RxData[huart->lu32_RxCount++] = huart->Instance->DR;
            }

            huart->lu8_RxBusy = false;

            /* Disable RX and RTI interrupt */
            CLEAR_BIT(huart->Instance->IE, (UART_IE_RXI|UART_IE_RTI));

            /* clear error interrupt */
            CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);

            HAL_UART_RxCpltCallback(huart);
        }
    }
    /* if some errors occurred */
    if(errorflags != 0 &&(ieits & (UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI)))
    {
        /* UART parity error interrupt occurred */
        if (((isrflags & UART_RIS_PEI) != 0) && ((ieits & UART_IE_PEI) != 0))
        {
            /* Clear parity error status */
            SET_BIT(huart->Instance->ICR, UART_ICR_PEI);
            huart->ErrorCode |= HAL_UART_ERROR_PE;
        }

        /* UART break error interrupt occurred */
        if (((isrflags & UART_RIS_BEI) != 0) && ((ieits & UART_IE_BEI) != 0))
        {
            SET_BIT(huart->Instance->ICR, UART_RIS_BEI);
            huart->ErrorCode |= HAL_UART_ERROR_NE;
        }

        /* UART frame error interrupt occurred */
        if (((isrflags & UART_RIS_FEI) != 0) && ((ieits & UART_IE_FEI) != 0))
        {
            SET_BIT(huart->Instance->ICR, UART_RIS_FEI);
            huart->ErrorCode |= HAL_UART_ERROR_FE;
        }

        /* UART Over-Run interrupt occurred */
        if (((isrflags & UART_RIS_OEI) != 0) && ((ieits & UART_IE_OEI) != 0))
        {
            SET_BIT(huart->Instance->ICR, UART_RIS_OEI);
            huart->ErrorCode |= HAL_UART_ERROR_ORE;
        }

        /* clear error interrupt */
        CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);

        HAL_UART_ErrorCallback(huart);
    }
}

/*********************************************************************************
* Function    : HAL_UART_Wait_Tx_Done
* Description : wait Tx FIFO empty
* Input       : huart: UART handle.
* Output      :
**********************************************************************************/
static HAL_StatusTypeDef HAL_UART_Wait_Tx_Done(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))         return HAL_ERROR;
#endif
    /* wait TX not busy*/
    while(READ_BIT(huart->Instance->FR, UART_FR_BUSY));

    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_MspInit
* Description : Initialize the UART MSP.
* Input       : huart: UART handle.
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
__weak void HAL_UART_MspInit(UART_HandleTypeDef *huart)
{
    /*
      NOTE: This function should be modified, when the callback is needed,
      the HAL_UART_MspInit can be implemented in the user file.
    */

    /* For Example */
    GPIO_InitTypeDef    GPIO_Uart1;

    if (huart->Instance == UART1)
    {
        /* Enable Clock */
        System_Module_Enable(EN_UART1);

        /* Initialization GPIO */
        /* A9:Tx  A10:Rx */
        GPIO_Uart1.Pin       = GPIO_PIN_9 | GPIO_PIN_10;
        GPIO_Uart1.Mode      = GPIO_MODE_AF_PP;
        GPIO_Uart1.Pull      = GPIO_PULLUP;
        GPIO_Uart1.Alternate = GPIO_FUNCTION_2;

        HAL_GPIO_Init(GPIOA, &GPIO_Uart1);

        if (huart->Init.HwFlowCtl & UART_HWCONTROL_CTS)
        {
            /* A11:CTS */
            GPIO_Uart1.Pin = GPIO_PIN_11;

            HAL_GPIO_Init(GPIOA, &GPIO_Uart1);
        }

        if (huart->Init.HwFlowCtl & UART_HWCONTROL_RTS)
        {
            /* A12:RTS */
            GPIO_Uart1.Pin = GPIO_PIN_12;

            HAL_GPIO_Init(GPIOA, &GPIO_Uart1);
        }

        /* NVIC Config */
        NVIC_ClearPendingIRQ(UART1_IRQn);
        NVIC_SetPriority(UART1_IRQn, 5);
        NVIC_EnableIRQ(UART1_IRQn);
    }
}

/*********************************************************************************
* Function    : HAL_UART_Init
* Description : Initialize the UART mode according to the specified parameters
*               in the UART_InitTypeDef
* Input       : huart: UART handle.
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Init(UART_HandleTypeDef *huart)
{

#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))                   return HAL_ERROR;
    if (!IS_UART_WORDLENGTH(huart->Init.WordLength))              return HAL_ERROR;
    if (!IS_UART_STOPBITS(huart->Init.StopBits))                  return HAL_ERROR;
    if (!IS_UART_PARITY(huart->Init.Parity))                      return HAL_ERROR;
    if (!IS_UART_MODE(huart->Init.Mode))                          return HAL_ERROR;
    if (!IS_UART_HARDWARE_FLOW_CONTROL(huart->Init.HwFlowCtl))    return HAL_ERROR;
#endif

    /* Init the low level hardware : GPIO, CLOCK, NVIC */
    HAL_UART_MspInit(huart);

    /* Config BaudRate */
    UART_Config_BaudRate(huart);

    /* Set the UART Communication parameters */
    huart->Instance->LCRH = huart->Init.WordLength | UART_LCRH_FEN | huart->Init.StopBits | huart->Init.Parity;
    huart->Instance->CR = huart->Init.HwFlowCtl | huart->Init.Mode | UART_CR_UARTEN;

    if (huart->Init.Mode == UART_MODE_TX_RX_DEBUG)
    {
        Uart_Debug = huart->Instance;
    }
    else if (huart->Init.Mode == UART_MODE_HALF_DUPLEX)
    {
        huart->Instance->CR2 = UART_CR2_TXOE_SEL;
    }
    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_MspDeInit
* Description : DeInitialize the UART MSP.
* Input       : huart: UART handle.
* Output      :
**********************************************************************************/
__weak void HAL_UART_MspDeInit(UART_HandleTypeDef *huart)
{
    /*
      NOTE: This function should be modified, when the callback is needed,
      the HAL_UART_MspDeInit can be implemented in the user file.
    */
    if (huart->Instance == UART1)
    {
        /* Disable Clock */
        System_Module_Disable(EN_UART1);

        /* DeInitialization GPIO */
        /* A9:Tx  A10:Rx */
        HAL_GPIO_DeInit(GPIOA,GPIO_PIN_9 | GPIO_PIN_10);

        if (huart->Init.HwFlowCtl & UART_HWCONTROL_CTS)
        {
            /* A11:CTS */
            HAL_GPIO_DeInit(GPIOA, GPIO_PIN_11);
        }

        if (huart->Init.HwFlowCtl & UART_HWCONTROL_RTS)
        {
            /* A12:RTS */
            HAL_GPIO_DeInit(GPIOA, GPIO_PIN_12);
        }

        /* NVIC DeInit */
        NVIC_DisableIRQ(UART1_IRQn);

    }
    else if(huart->Instance == UART2)
    {

    }
}

/*********************************************************************************
* Function    : HAL_UART_Init
* Description : Initialize the UART mode according to the specified parameters
*               in the UART_InitTypeDef
* Input       : huart: UART handle.
* Output      :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_DeInit(UART_HandleTypeDef *huart)
{

#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))         return HAL_ERROR;
#endif

    /* DeInit the low level hardware : GPIO, CLOCK, NVIC */
    HAL_UART_MspDeInit(huart);

    return HAL_OK;

}


/*********************************************************************************
* Function    : HAL_UART_Transmit
* Description : Send an amount of data in blocking mode.
* Input       : huart:        UART handle.
* Input       : fu8_Data:     Pointer to data buffer.
* Input       : fu32_Size:    Amount of data elements to be sent.
* Input       : fu32_Timeout: Timeout duration.
* Output      : HAL status
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Transmit(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size, uint32_t fu32_Timeout)
{
    uint32_t lu32_Timeout;

#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    huart->lu32_TxCount = 0;

    while (fu32_Size--)
    {
        huart->Instance->DR = *fu8_Data++;

        huart->lu32_TxCount++;

        /* have no timeout */
        if (fu32_Timeout == 0)
        {
            while (huart->Instance->FR & UART_FR_TXFF);
        }
        else
        {
            lu32_Timeout = fu32_Timeout *256;

            while (huart->Instance->FR & UART_FR_TXFF)
            {
                if (lu32_Timeout-- == 0)
                {
                    return HAL_TIMEOUT;
                }
            }
        }
    }

    HAL_UART_Wait_Tx_Done(huart);
    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_Receive
* Description : Receive an amount of data in blocking mode.
* Input       : huart:        UART handle.
* Input       : fu8_Data:     Pointer to data buffer.
* Input       : fu32_Size:    Amount of data elements to be receive.
* Input       : fu32_Timeout: Timeout duration.
* Output      : HAL status
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Receive(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size, uint32_t fu32_Timeout)
{
    uint32_t lu32_Timeout;

#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    huart->lu32_RxCount = 0;

    /* Half duplex Use Tx GPIO Receive Data */
    if (huart->Init.Mode == UART_MODE_HALF_DUPLEX)
    {
        huart->Instance->CR2 |= UART_CR2_RX_SEL;
    }

    while (fu32_Size--)
    {
        if (fu32_Timeout == 0)
        {
            while(huart->Instance->FR & UART_FR_RXFE);

            *fu8_Data++ = huart->Instance->DR;

            huart->lu32_RxCount++;
        }
        else
        {
            lu32_Timeout = fu32_Timeout * 256;

            while(huart->Instance->FR & UART_FR_RXFE)
            {
                if (lu32_Timeout-- == 0)
                {
                    /* Clear Half duplex */
                    huart->Instance->CR2 &= ~UART_CR2_RX_SEL;

                    return HAL_TIMEOUT;
                }
            }

            *fu8_Data++ = huart->Instance->DR;

            huart->lu32_RxCount++;
        }
    }

    /* Clear Half duplex */
    huart->Instance->CR2 &= ~UART_CR2_RX_SEL;

    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_Transmit_IT
* Description : Send an amount of data in interrupt mode.
* Input       : huart:        UART handle.
* Input       : fu8_Data:     Pointer to data buffer.
* Input       : fu32_Size:    Amount of data elements to be receive.
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    if (huart->lu8_TxBusy == true)
    {
        return HAL_BUSY;
    }

    if (fu32_Size == 0 || fu8_Data == NULL)
    {
        return HAL_ERROR;
    }

    huart->lu32_TxSize  = fu32_Size;
    huart->lu32_TxCount = 0;
    huart->lu8_TxData   = fu8_Data;
    huart->lu8_TxBusy   = true;

    /* Clear TXI Status */
    huart->Instance->ICR = UART_ICR_TXI;
    /* FIFO Enable */
    SET_BIT(huart->Instance->LCRH, UART_LCRH_FEN);
    /*FIFO Select*/
    SET_BIT(huart->Instance->IFLS,UART_TX_FIFO_1_2);

    for(;;)
    {
        /*Data Size less than 16Byte */
        if(fu32_Size == huart->lu32_TxCount)
        {
            huart->lu8_TxBusy = false;

            while ((huart->Instance->FR & UART_FR_BUSY)){}

            HAL_UART_TxCpltCallback(huart);

            return HAL_OK;
        }
        if(READ_BIT(huart->Instance->FR, UART_FR_TXFF))
        {
             break;
        }
        huart->Instance->DR = huart->lu8_TxData[huart->lu32_TxCount++];
    }

    /* Enable TX interrupt */
    huart->Instance->IE |= UART_IE_TXI;

    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_Receive_IT
* Description : Receive an amount of data in interrupt mode.
* Input       :
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Receive_IT(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    if (huart->lu8_RxBusy == true)
    {
        return HAL_BUSY;
    }

    if (fu32_Size == 0 || fu8_Data == NULL)
    {
        return HAL_ERROR;
    }

    huart->lu32_RxSize  = fu32_Size;
    huart->lu32_RxCount = 0;
    huart->lu8_RxData   = fu8_Data;
    huart->lu8_RxBusy   = true;

    /* Clear RXI Status */
    huart->Instance->ICR = UART_ICR_RXI;
    /* FIFO Enable */
    SET_BIT(huart->Instance->LCRH, UART_LCRH_FEN);
    /*FIFO Select*/
    MODIFY_REG(huart->Instance->IFLS, UART_IFLS_RXIFLSEL, UART_RX_FIFO_1_2);
    huart->lu32_fifo_level_minus1 = 8-1;  // 16/2 - 1
    /* Enable the UART Errors interrupt */
    SET_BIT(huart->Instance->IE,UART_IE_OEI|UART_IE_BEI|UART_IE_PEI|UART_IE_FEI);
    /* Enable RX and RTI interrupt */
    SET_BIT(huart->Instance->IE,UART_IE_RXI|UART_IE_RTI);

    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_Transmit_DMA
* Description : Send an amount of data in DMA mode.
* Input       : huart:        UART handle.
* Input       : fu8_Data:     Pointer to data buffer.
* Input       : fu32_Size:    Amount of data elements to be Send.
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Transmit_DMA(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    if (huart->lu8_TxBusy == true)
    {
        return HAL_BUSY;
    }

    if (fu32_Size == 0 || fu8_Data == NULL)
    {
        return HAL_ERROR;
    }

    huart->Instance->DMACR |= UART_DMACR_TXDMAE;

    if (HAL_DMA_Start_IT(huart->HDMA_Tx, (uint32_t)fu8_Data, (uint32_t)(&huart->Instance->DR), fu32_Size))
    {
        return HAL_ERROR;
    }

    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_Receive_DMA
* Description : Receive an amount of data in DMA mode.
* Input       : huart:        UART handle.
* Input       : fu8_Data:     Pointer to data buffer.
* Input       : fu32_Size:    Amount of data elements to be receive.
* Output      :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Receive_DMA(UART_HandleTypeDef *huart, uint8_t *fu8_Data, uint32_t fu32_Size)
{
#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    if (huart->lu8_RxBusy == true)
    {
        return HAL_BUSY;
    }

    if (fu32_Size == 0 || fu8_Data == NULL)
    {
        return HAL_ERROR;
    }

    huart->Instance->DMACR |= UART_DMACR_RXDMAE;

    if (HAL_DMA_Start_IT(huart->HDMA_Rx, (uint32_t)(&huart->Instance->DR), (uint32_t)fu8_Data, fu32_Size))
    {
        return HAL_ERROR;
    }

    return HAL_OK;
}



/*********************************************************************************
* Function    : HAL_UART_TxCpltCallback
* Description : Tx Transfer completed callbacks.
* Input       :
* Output       :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
__weak void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
    /*
      NOTE: This function Should be modified, when the callback is needed,
      the HAL_UART_TxCpltCallback could be implemented in the user file.
    */
}

/*********************************************************************************
* Function    : HAL_UART_RxCpltCallback
* Description : Rx Transfer completed callbacks.
* Input       :
* Output       :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
__weak void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
    /*
      NOTE: This function Should be modified, when the callback is needed,
      the HAL_UART_RxCpltCallback could be implemented in the user file.
    */
}

/*********************************************************************************
* Function    : HAL_UART_ErrorCallBack
* Description : Recv Error callbacks.
* Input       :
* Output      :
**********************************************************************************/
__weak void HAL_UART_ErrorCallBack(UART_HandleTypeDef *huart)
{
    /*
      NOTE: This function Should be modified, when the callback is needed,
      the HAL_UART_ErrorCallBack could be implemented in the user file.
    */
}

/*********************************************************************************
* Function    : UART_Config_BaudRate
* Description : Config BaudRate
* Input       :
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
static void UART_Config_BaudRate(UART_HandleTypeDef *huart)
{
    uint32_t lu32_PCLK;
    uint32_t lu32_IBAUD, lu32_FBAUD;
    uint64_t lu64_TempValue;

    lu32_PCLK = System_Get_APBClock();

    /* Integral part */
    lu32_IBAUD = lu32_PCLK / (huart->Init.BaudRate * 16);

    /* Fractional part */
    lu64_TempValue = lu32_PCLK % (huart->Init.BaudRate * 16);
    lu64_TempValue = (lu64_TempValue * 1000000) / (huart->Init.BaudRate * 16);
    lu32_FBAUD     = (lu64_TempValue * 64 + 500000) / 1000000;

    if (lu32_FBAUD >= 64)
    {
        huart->Instance->IBRD = lu32_IBAUD + 1;
        huart->Instance->FBRD = 0;
    }
    else
    {
        huart->Instance->IBRD = lu32_IBAUD;
        huart->Instance->FBRD = lu32_FBAUD;
    }
}

/*********************************************************************************
* Function    : HAL_UART_GetState
* Description : Return the uart State
* Input       :
* Output      :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_GetState(UART_HandleTypeDef *huart)
{

#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    if(huart->lu8_TxBusy || huart->lu8_RxBusy)
    {
        return HAL_BUSY;
    }

    return HAL_OK;
}


/*********************************************************************************
* Function    : HAL_UART_GetError
* Description : Return the uart Error
* Input       :
* Output      :
**********************************************************************************/
uint32_t HAL_UART_GetError(UART_HandleTypeDef *huart)
{
    return huart->ErrorCode;
}

/*********************************************************************************
* Function    : HAL_UART_Abort
* Description : Abort ongoing transfers(blocking mode)
* Input       : UART handle
* Output      :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_Abort(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
    if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

    /*disble all interrupt*/
    huart->Instance->IE  =0x00;

    /* Disable the UART DMA Tx request if enable */
    if(READ_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE))
    {
        CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE);

        /* Abort the UART Tx Channel   */
        if(huart->HDMA_Tx)
        {
            /*Set the UART DMA Abort callback to Null */
            huart->HDMA_Tx->DMA_ITC_Callback =NULL;

            if(HAL_DMA_Abort(huart->HDMA_Tx)!=HAL_OK)
            {
                return HAL_TIMEOUT;
            }
        }
    }

    /* Disable the UART DMA Rx request if enable */
    if(READ_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE))
    {
        CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE);

        /* Abort the UART Rx Channel   */
        if(huart->HDMA_Rx)
        {
            /*Set the UART DMA Abort callback to Null */
            huart->HDMA_Rx->DMA_ITC_Callback =NULL;

            if(HAL_DMA_Abort(huart->HDMA_Rx)!=HAL_OK)
            {
                return HAL_TIMEOUT;
            }
        }
    }

    /*Reset Tx and Rx Transfer size*/
    huart->lu32_TxSize = 0;
    huart->lu32_RxSize = 0;

    /* Restore huart->lu8_TxBusy and huart->lu8_RxBusy to Ready */
    huart->lu8_TxBusy = false;
    huart->lu8_RxBusy = false;

    return HAL_OK;
}

/*********************************************************************************
* Function    : HAL_UART_DMAPause
* Description : Pause the DMA Transfer
* Input       : UART handle
* Output      :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_DMAPause(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
        if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

  if(READ_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE))
  {
    /* Disable the UART DMA Tx request */
    CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE);
  }

  if (READ_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE))
  {
    /* Disable RXNE, PE and ERR (Frame error, noise error, overrun error) interrupts */
    CLEAR_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_FEI);

    /* Disable the UART DMA Rx request */
    CLEAR_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE);
  }

  return HAL_OK;
}


/*********************************************************************************
* Function    : HAL_UART_DMAResume
* Description : Resume the DMA Transfer
* Input       : UART handle
* Output      :
**********************************************************************************/
HAL_StatusTypeDef HAL_UART_DMAResume(UART_HandleTypeDef *huart)
{
#if (USE_FULL_ASSERT == 1)
        if (!IS_UART_ALL_INSTANCE(huart->Instance))    return HAL_ERROR;
#endif

  if (huart->lu8_TxBusy == false)
  {
    /* Enable the UART DMA Tx request */
    SET_BIT(huart->Instance->DMACR, UART_DMACR_TXDMAE);
  }

  if (huart->lu8_RxBusy == false)
  {
    /* Reenable PE and ERR (Frame error, noise error, overrun error) interrupts */
    SET_BIT(huart->Instance->IE, UART_IE_OEI|UART_IE_BEI|UART_IE_FEI);

    /* Enable the UART DMA Rx request */
    SET_BIT(huart->Instance->DMACR, UART_DMACR_RXDMAE);
  }

  return HAL_OK;
}

#if 0
/*********************************************************************************
* Function    : fputc
* Description :
* Input       :
* Output      :
* Author      : Chris_Kyle                         Data : 2020
**********************************************************************************/
int fputc(int ch, FILE *f)
{
    if (Uart_Debug == NULL)
    {
        return 0;
    }

    Uart_Debug->DR = ch;

    while ((Uart_Debug->FR & UART_FR_BUSY));

    return ch;
}
#endif