STM32 USART DMA发送 中断接收

文件(usart.h)：

#ifndef _USART__H
#define _USART__H

#define EMPTY 0xFFFF

extern vu32 uart2_transfer_complete;

typedef enum {
    BSP_UART_STOPBITS_1=1,
    BSP_UART_STOPBITS_2=2
}BSP_UART_StopBits;

typedef enum {
    BSP_UART_PARITY_NO=0,
    BSP_UART_PARITY_ODD=1,
    BSP_UART_PARITY_EVEN=2
}BSP_UART_Parity;

typedef enum {
    DATA_SIZE_BYTE=1,
    DATA_SIZE_HALF_WORD=2
}BSP_UART_DataSize;

typedef void (*usart_hook_func_t)(u16 recv_data);

void bsp_ISR_uart1_setRecvHook(usart_hook_func_t func);
void bsp_ISR_uart2_setRecvHook(usart_hook_func_t func);
void bsp_ISR_uart3_setRecvHook(usart_hook_func_t func);
void bsp_ISR_uart4_setRecvHook(usart_hook_func_t func);
void bsp_ISR_uart5_setRecvHook(usart_hook_func_t func);

void bsp_uart1_config(u32 bps, BSP_UART_StopBits stopbits, BSP_UART_Parity parity, u8 databits, BSP_UART_DataSize ds);
void bsp_uart2_config(u32 bps, BSP_UART_StopBits stopbits, BSP_UART_Parity parity, u8 databits, BSP_UART_DataSize ds);
void bsp_uart3_config(u32 bps, BSP_UART_StopBits stopbits, BSP_UART_Parity parity, u8 databits, BSP_UART_DataSize ds);
void bsp_uart4_config(u32 bps, BSP_UART_StopBits stopbits, BSP_UART_Parity parity, u8 databits, BSP_UART_DataSize ds);
void bsp_uart5_config(u32 bps, BSP_UART_StopBits stopbits, BSP_UART_Parity parity, u8 databits, BSP_UART_DataSize ds);

void bsp_uart1_send_u8(u8* buf, u16 size);
void bsp_uart1_send_u16(u16* buf, u16 size);
void bsp_uart2_send_u8(u8* buf, u16 size);
void bsp_uart2_send_u16(u16* buf, u16 size);
void bsp_uart3_send_u8(u8* buf, u16 size);
void bsp_uart3_send_u16(u16* buf, u16 size);
void bsp_uart4_send_u8(u8* buf, u16 size);
void bsp_uart4_send_u16(u16* buf, u16 size);
void bsp_uart5_send_u8(u8* buf, u16 size);
void bsp_uart5_send_u16(u16* buf, u16 size);

/****************************************************************************************/
void bsp_ISR_uart1_putRecvData(u8 data); /* macro_ISR_uart_putRecvData */
void bsp_ISR_uart1_putSendData(u8 data); /* macro_ISR_uart_putSendData */

u16  bsp_uart1_getRecvData(void);          /* macro_uart_getRecvData */
u16  bsp_uart1_getSendData(void);          /* macro_uart_getSendData */

u8 bsp_uart1_recvBufIsFull(void);            /* macro_uart_recvBufIsFull */
u8 bsp_uart1_sendBufIsFull(void);           /* macro_uart_sendBufIsFull */

u8 bsp_uart1_sendBufIsEmpty(void);       /* macro_uart_sendBufIsEmpty */ 

void bsp_uart1_cleanAllBuffer(void);        /* macro_uart_cleanAllBuffer */


u16 bsp_uart1_recvBufRemain(void);       /* macro_uart_recvBufRemain */
u16 bsp_uart1_sendbufRemain(void);      /* macro_uart_sendbufRemain */
/******************************************************************************************/
void bsp_ISR_uart2_putRecvData(u8 data); /* macro_ISR_uart_putRecvData */
void bsp_ISR_uart2_putSendData(u8 data); /* macro_ISR_uart_putSendData */

u16  bsp_uart2_getRecvData(void);          /* macro_uart_getRecvData */
u16  bsp_uart2_getSendData(void);          /* macro_uart_getSendData */

u8 bsp_uart2_recvBufIsFull(void);           /* macro_uart_recvBufIsFull */
u8 bsp_uart2_sendBufIsFull(void);          /* macro_uart_sendBufIsFull */

u8   bsp_uart2_sendBufIsEmpty(void);     /* macro_uart_sendBufIsEmpty */

void bsp_uart2_cleanAllBuffer(void);        /* macro_uart_cleanAllBuffer */

u16 bsp_uart2_recvBufRemain(void);       /* macro_uart_recvBufRemain */
u16 bsp_uart2_sendbufRemain(void);       /* macro_uart_sendbufRemain */
/******************************************************************************************/
void bsp_ISR_uart3_putRecvData(u8 data); /* macro_ISR_uart_putRecvData */
void bsp_ISR_uart3_putSendData(u8 data); /* macro_ISR_uart_putSendData */

u16  bsp_uart3_getRecvData(void);          /* macro_uart_getRecvData */
u16  bsp_uart3_getSendData(void);          /* macro_uart_getSendData */

u8 bsp_uart3_recvBufIsFull(void);            /* macro_uart_recvBufIsFull */
u8 bsp_uart3_sendBufIsFull(void);           /* macro_uart_sendBufIsFull */

u8   bsp_uart3_sendBufIsEmpty(void);      /* macro_uart_sendBufIsEmpty */

void bsp_uart3_cleanAllBuffer(void);         /* macro_uart_cleanAllBuffer */    

u16 bsp_uart3_recvBufRemain(void);        /* macro_uart_recvBufRemain */
u16 bsp_uart3_sendbufRemain(void);       /* macro_uart_sendbufRemain */
/******************************************************************************************/
void bsp_ISR_uart4_putRecvData(u8 data); /* macro_ISR_uart_putRecvData */
void bsp_ISR_uart4_putSendData(u8 data); /* macro_ISR_uart_putSendData */

u16  bsp_uart4_getRecvData(void);          /* macro_uart_getRecvData */
u16  bsp_uart4_getSendData(void);          /* macro_uart_getSendData */

u8 bsp_uart4_recvBufIsFull(void);            /* macro_uart_recvBufIsFull */
u8 bsp_uart4_sendBufIsFull(void);           /* macro_uart_sendBufIsFull */

u8   bsp_uart4_sendBufIsEmpty(void);     /* macro_uart_sendBufIsEmpty */ 

void bsp_uart4_cleanAllBuffer(void);        /* macro_uart_cleanAllBuffer */

u16 bsp_uart4_recvBufRemain(void);       /* macro_uart_recvBufRemain */
u16 bsp_uart4_sendbufRemain(void);       /* macro_uart_sendbufRemain */
/******************************************************************************************/
void bsp_ISR_uart5_putRecvData(u8 data); /* macro_ISR_uart_putRecvData */
void bsp_ISR_uart5_putSendData(u8 data); /* macro_ISR_uart_putSendData */

u16  bsp_uart5_getRecvData(void);          /* macro_uart_getRecvData */
u16  bsp_uart5_getSendData(void);          /* macro_uart_getSendData */

u8 bsp_uart5_recvBufIsFull(void);           /* macro_uart_recvBufIsFull */
u8 bsp_uart5_sendBufIsFull(void);           /* macro_uart_sendBufIsFull */

u8   bsp_uart5_sendBufIsEmpty(void);      /* macro_uart_sendBufIsEmpty */

void bsp_uart5_cleanAllBuffer(void);         /* macro_uart_cleanAllBuffer */

u16 bsp_uart5_recvBufRemain(void);        /* macro_uart_recvBufRemain */
u16 bsp_uart5_sendbufRemain(void);       /* macro_uart_sendbufRemain */

#endif

文件(usart.c)：

/*
************************************************************************
**  brief : 串口驱动
**  note  : 接收和发送BUFFER,需要根据实际情况修改大小
************************************************************************
*/

#include "usart.h"

#define USART1_SEND_BUF_SIZE 280
#define USART1_RECV_BUF_SIZE 256*2
#define USART2_SEND_BUF_SIZE 256*1
#define USART2_RECV_BUF_SIZE 256*2
#define USART3_SEND_BUF_SIZE 256*1
#define USART3_RECV_BUF_SIZE 256*1
#define USART4_SEND_BUF_SIZE 256*1
#define USART4_RECV_BUF_SIZE 256*2
#define USART5_SEND_BUF_SIZE 256*1
#define USART5_RECV_BUF_SIZE 256*1

/*
****************************************************************
**  brief : 定义USART1-USART5的数据
**            USART1_SEND_BUF - USART5_SEND_BUF
**            USART1_RECV_BUF - USART5_RECV_BUF
**            uart1SendHead - uart5SendHead
**            uart1SendTail - uart5SendTail
**            uart1RecvHead - uart5RecvHead
**            uart5RecvTail - uart5RecvTail
****************************************************************
*/
#define UART_BUF_DEFINE(uartNo) \
    static u8 USART##uartNo##_SEND_BUF[USART##uartNo##_SEND_BUF_SIZE];\
    static vu16 uart##uartNo##SendHead=0;\
    static vu16 uart##uartNo##SendTail=0;\
    static vu8 UART##uartNo##_RECV_BUF[USART##uartNo##_RECV_BUF_SIZE];\
    static vu16 uart##uartNo##RecvHead=0;\
    static vu16 uart##uartNo##RecvTail=0;

UART_BUF_DEFINE(1);
UART_BUF_DEFINE(2);
UART_BUF_DEFINE(3);
UART_BUF_DEFINE(4);
UART_BUF_DEFINE(5);

/*
**************************************************************************************
**  brief      : 串口1配置初始化
**  bsp       : 波特率1200 2400 4800 9600 ... 115200，不能小于1200 
**  stopb    : 停止位
**  p          : 奇偶校验位
**  databits : 数据位7 or 8 or 9
**  ds         : DMA数据宽度
**************************************************************************************
*/
void bsp_uart1_config(u32 bps, BSP_UART_StopBits stopb, BSP_UART_Parity p, u8 databits, BSP_UART_DataSize ds) 
{
    u16 stopbits;
    u16 parity;

    if (stopb == BSP_UART_STOPBITS_1) stopbits = USART_StopBits_1;
    else if(stopb == BSP_UART_STOPBITS_2)stopbits = USART_StopBits_2;
    else stopbits = USART_StopBits_1;

    if(p == BSP_UART_PARITY_NO) parity = USART_Parity_No;
    else if(p == BSP_UART_PARITY_EVEN) parity = USART_Parity_Even;
    else if(p == BSP_UART_PARITY_ODD) parity = USART_Parity_Odd;
    else parity = USART_Parity_No;

    u32 dataSize = DMA_PeripheralDataSize_Byte;
    if(ds == DATA_SIZE_HALF_WORD) {
        dataSize = DMA_PeripheralDataSize_HalfWord;
    } else {
        dataSize = DMA_PeripheralDataSize_Byte;
    }

    do {
        GPIO_InitTypeDef GPIO_InitStructure;
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOA, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
        GPIO_Init(GPIOA, &GPIO_InitStructure);
    } while(0);

    do {
        USART_InitTypeDef USART_InitStructure;
        u16 USART_WordLength = USART_WordLength_8b;
        USART_DeInit(USART1);  /* 复位USART1 */

        bsp_uart1_cleanAllBuffer();

        /* 提示: STM32 将奇偶位也算作数据位*/
        if(parity!=USART_Parity_No && 7 != databits) 
        {
            USART_WordLength = USART_WordLength_9b;
        }

        if(9==databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        USART_InitStructure.USART_BaudRate = bps;
        USART_InitStructure.USART_WordLength = USART_WordLength;
        USART_InitStructure.USART_StopBits = stopbits;
        USART_InitStructure.USART_Parity = parity;
        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
        USART_Init(USART1, &USART_InitStructure);

        /* 接收缓冲区非空中断使能*/
        USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);
        USART_ITConfig(USART1,USART_IT_TC,DISABLE);
        USART_ITConfig(USART1,USART_IT_TXE,DISABLE);

        USART_Cmd(USART1, ENABLE);
        /* 
            **  CPU的小缺陷：串口配置好，如果直接Send，则第1个字节发
            **  送不出去如下语句解决第1个字节无法正确发送出去的问题  
            */
        USART_ClearFlag(USART1, USART_FLAG_TC); 
    } while(0);

    do {
        DMA_InitTypeDef DMA_InitStructure;
        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
        DMA_DeInit(DMA1_Channel4);  
        DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)(&USART1->DR);   /* 外设地址*/
        DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)USART1_SEND_BUF;/* 存储器地址*/
        DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;               /* 从存储器读*/
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {                /* 传输数据量*/
            DMA_InitStructure.DMA_BufferSize = USART1_SEND_BUF_SIZE/2;
        } else {
            DMA_InitStructure.DMA_BufferSize = USART1_SEND_BUF_SIZE;
        }
        DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; /* 外设地址非增量模式*/
        DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;          /* 存储器增量模式*/
        DMA_InitStructure.DMA_PeripheralDataSize = dataSize;             /* 外设数据宽度*/
        if(DMA_PeripheralDataSize_HalfWord == dataSize)                  /* 存储器数据宽度*/
        { 
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;/* 16bit */
        } else 
        {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;    /* 8bit */ 
        }
        DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;      /* 普通模式*/
        DMA_InitStructure.DMA_Priority = DMA_Priority_High;/* 高优先级*/
        DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;       /* 非存储器到存储器模式*/
        DMA_Init(DMA1_Channel4, &DMA_InitStructure);       /* DMA 初始化*/
        DMA_ITConfig(DMA1_Channel4, DMA_IT_TC, ENABLE);    /* 使能发送完成中断*/

        USART_DMACmd(USART1, USART_DMAReq_Tx, ENABLE);     /* 使能发送时的DMA 模式*/
        DMA_Cmd(DMA1_Channel4, DISABLE);
    } while(0);

    do {    
        NVIC_InitTypeDef NVIC_InitStructure;

        NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);

        NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel4_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);
    } while(0);
}

/*
**************************************************************************************
**  brief      : 串口2配置初始化
**  bsp       : 波特率1200 2400 4800 9600 ... 115200，不能小于1200 
**  stopb    : 停止位
**  p          : 奇偶校验位
**  databits : 数据位7 or 8 or 9
**  ds         : DMA数据宽度
**************************************************************************************
*/

void bsp_uart2_config(u32 bps, BSP_UART_StopBits stopb, BSP_UART_Parity p, u8 databits, BSP_UART_DataSize ds) 
{
    u16 stopbits;
    u16 parity;
    if (stopb == BSP_UART_STOPBITS_1) stopbits = USART_StopBits_1;
    else if(stopb == BSP_UART_STOPBITS_2)stopbits = USART_StopBits_2;
    else stopbits = USART_StopBits_1;

    if(p == BSP_UART_PARITY_NO) parity = USART_Parity_No;
    else if(p == BSP_UART_PARITY_EVEN) parity = USART_Parity_Even;
    else if(p == BSP_UART_PARITY_ODD) parity = USART_Parity_Odd;
    else parity = USART_Parity_No;

    u32 dataSize = DMA_PeripheralDataSize_Byte;
    if(ds == DATA_SIZE_HALF_WORD) {
        dataSize = DMA_PeripheralDataSize_HalfWord;
    } else {
        dataSize = DMA_PeripheralDataSize_Byte;
    }

    do {
        GPIO_InitTypeDef GPIO_InitStructure;
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
        RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOA, &GPIO_InitStructure);
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
        GPIO_Init(GPIOA, &GPIO_InitStructure);
    } while(0);

    do {
        USART_InitTypeDef USART_InitStructure;
        u16 USART_WordLength = USART_WordLength_8b;
        USART_DeInit(USART2);
        bsp_uart2_cleanAllBuffer();

        if(parity!=USART_Parity_No && 7 != databits) {
            USART_WordLength = USART_WordLength_9b;
        }
        if(9==databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        USART_InitStructure.USART_BaudRate = bps;
        USART_InitStructure.USART_WordLength = USART_WordLength;
        USART_InitStructure.USART_StopBits = stopbits;
        USART_InitStructure.USART_Parity = parity;
        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
        USART_Init(USART2, &USART_InitStructure);

        USART_ITConfig(USART2,USART_IT_RXNE,ENABLE);
        USART_ITConfig(USART2,USART_IT_TC,DISABLE);
        USART_ITConfig(USART2,USART_IT_TXE,DISABLE);
        USART_Cmd(USART2, ENABLE);
        USART_ClearFlag(USART2, USART_FLAG_TC);
    } while(0);

    do {
        DMA_InitTypeDef DMA_InitStructure;

        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);

        DMA_DeInit(DMA1_Channel7);  
        DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)(&USART2->DR);
        DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)USART2_SEND_BUF;
        DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {
            DMA_InitStructure.DMA_BufferSize = USART2_SEND_BUF_SIZE/2;
        } else {
            DMA_InitStructure.DMA_BufferSize = USART2_SEND_BUF_SIZE;
        }
        DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
        DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
        DMA_InitStructure.DMA_PeripheralDataSize = dataSize;
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
        } else {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
        }
        DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
        DMA_InitStructure.DMA_Priority = DMA_Priority_High;
        DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
        DMA_Init(DMA1_Channel7, &DMA_InitStructure);
        DMA_ITConfig(DMA1_Channel7, DMA_IT_TC, ENABLE);

        USART_DMACmd(USART2, USART_DMAReq_Tx, ENABLE);
        DMA_Cmd(DMA1_Channel7, DISABLE);

    } while(0);

    do {
        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);

        NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel7_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);
    } while(0);
}

/*
**************************************************************************************
**  brief      : 串口3配置初始化
**  bsp       : 波特率1200 2400 4800 9600 ... 115200，不能小于1200 
**  stopb    : 停止位
**  p          : 奇偶校验位
**  databits : 数据位7 or 8 or 9
**  ds         : DMA数据宽度
**************************************************************************************
*/

void bsp_uart3_config(u32 bps, BSP_UART_StopBits stopb, BSP_UART_Parity p, u8 databits, BSP_UART_DataSize ds) 
{
    u16 stopbits;
    u16 parity;
    if (stopb == BSP_UART_STOPBITS_1) stopbits = USART_StopBits_1;
    else if(stopb == BSP_UART_STOPBITS_2)stopbits = USART_StopBits_2;
    else stopbits = USART_StopBits_1;

    if(p == BSP_UART_PARITY_NO) parity = USART_Parity_No;
    else if(p == BSP_UART_PARITY_EVEN) parity = USART_Parity_Even;
    else if(p == BSP_UART_PARITY_ODD) parity = USART_Parity_Odd;
    else parity = USART_Parity_No;

    u32 dataSize = DMA_PeripheralDataSize_Byte;
    if(ds == DATA_SIZE_HALF_WORD) {
        dataSize = DMA_PeripheralDataSize_HalfWord;
    } else {
        dataSize = DMA_PeripheralDataSize_Byte;
    }

    do {
        GPIO_InitTypeDef GPIO_InitStructure;
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
        RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOB, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
        GPIO_Init(GPIOB, &GPIO_InitStructure);
    } while(0);

    do {
        USART_InitTypeDef USART_InitStructure;
        u16 USART_WordLength = USART_WordLength_8b;
        USART_DeInit(USART3);
        bsp_uart3_cleanAllBuffer();        

        if(parity!=USART_Parity_No && 7 != databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        if(9==databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        USART_InitStructure.USART_BaudRate = bps;
        USART_InitStructure.USART_WordLength = USART_WordLength;
        USART_InitStructure.USART_StopBits = stopbits;
        USART_InitStructure.USART_Parity = parity;
        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        USART_InitStructure.USART_Mode = USART_Mode_Rx |USART_Mode_Tx;
        USART_Init(USART3, &USART_InitStructure);

        USART_ITConfig(USART3,USART_IT_RXNE, ENABLE);
        USART_ITConfig(USART3,USART_IT_TC,DISABLE);
        USART_ITConfig(USART3,USART_IT_TXE,DISABLE);
        USART_Cmd(USART3, ENABLE);
        USART_ClearFlag(USART3, USART_FLAG_TC);
    } while(0);

    do {
        DMA_InitTypeDef DMA_InitStructure;
        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
        DMA_DeInit(DMA1_Channel2);  
        DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)(&USART3->DR);
        DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)USART3_SEND_BUF;
        DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {
            DMA_InitStructure.DMA_BufferSize = USART3_SEND_BUF_SIZE/2;
        } else {
            DMA_InitStructure.DMA_BufferSize = USART3_SEND_BUF_SIZE;
        }
        DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
        DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;

        DMA_InitStructure.DMA_PeripheralDataSize = dataSize;
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
        } else {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
        }
        DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
        DMA_InitStructure.DMA_Priority = DMA_Priority_High;
        DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
        DMA_Init(DMA1_Channel2, &DMA_InitStructure);
        DMA_ITConfig(DMA1_Channel2, DMA_IT_TC, ENABLE);

        USART_DMACmd(USART3, USART_DMAReq_Tx, ENABLE);
        DMA_Cmd(DMA1_Channel2, DISABLE);

    } while(0);

    do {
        NVIC_InitTypeDef NVIC_InitStructure;

        NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);

        NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel2_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);
    } while(0);
}

/*
**************************************************************************************
**  brief      : 串口4配置初始化
**  bsp       : 波特率1200 2400 4800 9600 ... 115200，不能小于1200 
**  stopb    : 停止位
**  p          : 奇偶校验位
**  databits : 数据位7 or 8 or 9
**  ds         : DMA数据宽度
**************************************************************************************
*/

void bsp_uart4_config(u32 bps, BSP_UART_StopBits stopb, BSP_UART_Parity p, u8 databits, BSP_UART_DataSize ds) 
{
    u16 stopbits;
    u16 parity;
    if (stopb == BSP_UART_STOPBITS_1) stopbits = USART_StopBits_1;
    else if(stopb == BSP_UART_STOPBITS_2)stopbits = USART_StopBits_2;
    else stopbits = USART_StopBits_1;

    if(p == BSP_UART_PARITY_NO) parity = USART_Parity_No;
    else if(p == BSP_UART_PARITY_EVEN) parity = USART_Parity_Even;
    else if(p == BSP_UART_PARITY_ODD) parity = USART_Parity_Odd;
    else parity = USART_Parity_No;

    u32 dataSize = DMA_PeripheralDataSize_Byte;
    if(ds == DATA_SIZE_HALF_WORD) {
        dataSize = DMA_PeripheralDataSize_HalfWord;
    } else {
        dataSize = DMA_PeripheralDataSize_Byte;
    }

    do {
        GPIO_InitTypeDef GPIO_InitStructure;

        RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);    
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOC, &GPIO_InitStructure);

        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
        GPIO_Init(GPIOC, &GPIO_InitStructure);
    } while(0);

    do {
        USART_InitTypeDef USART_InitStructure;
        u16 USART_WordLength = USART_WordLength_8b;
        USART_DeInit(UART4);
        bsp_uart4_cleanAllBuffer();
        if(parity!=USART_Parity_No && 7 != databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        if(9==databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        USART_InitStructure.USART_BaudRate = bps;
        USART_InitStructure.USART_WordLength = USART_WordLength;
        USART_InitStructure.USART_StopBits = stopbits;
        USART_InitStructure.USART_Parity = parity;
        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
        USART_Init(UART4, &USART_InitStructure);

        USART_ITConfig(UART4,USART_IT_RXNE,ENABLE);
        USART_ITConfig(UART4,USART_IT_TC,DISABLE);
        USART_ITConfig(UART4,USART_IT_TXE,DISABLE);
        USART_Cmd(UART4, ENABLE);
        USART_ClearFlag(UART4, USART_FLAG_TC); 
    } while(0);

    do {
        DMA_InitTypeDef DMA_InitStructure;
        RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
        DMA_DeInit(DMA2_Channel5);  
        DMA_InitStructure.DMA_PeripheralBaseAddr = (u32)(&UART4->DR);
        DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)USART4_SEND_BUF;
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {
            DMA_InitStructure.DMA_BufferSize = USART4_SEND_BUF_SIZE/2;
        } else {
            DMA_InitStructure.DMA_BufferSize = USART4_SEND_BUF_SIZE;
        }
        DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
        DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
        DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
        DMA_InitStructure.DMA_PeripheralDataSize = dataSize;
        if(DMA_PeripheralDataSize_HalfWord == dataSize) {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
        } else {
            DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
        }
        DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
        DMA_InitStructure.DMA_Priority = DMA_Priority_High;
        DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
        DMA_Init(DMA2_Channel5, &DMA_InitStructure);
        DMA_ITConfig(DMA2_Channel5, DMA_IT_TC, ENABLE);
        USART_DMACmd(UART4, USART_DMAReq_Tx, ENABLE);
        DMA_Cmd(DMA2_Channel5, DISABLE);
    } while(0);

    do {
        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel = UART4_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);

        NVIC_InitStructure.NVIC_IRQChannel = DMA2_Channel4_5_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);
    } while(0);
}

/*
**************************************************************************************
**  brief      : 串口5配置初始化
**  bsp       : 波特率1200 2400 4800 9600 ... 115200，不能小于1200 
**  stopb    : 停止位
**  p          : 奇偶校验位
**  databits : 数据位7 or 8 or 9
**  ds         : DMA数据宽度
**  note      : USART5没有使用DMA,故ds参数无意义
**************************************************************************************
*/

void bsp_uart5_config(u32 bps, BSP_UART_StopBits stopb, BSP_UART_Parity p, u8 databits, BSP_UART_DataSize ds) 
{
    u16 stopbits;
    u16 parity;
    if (stopb == BSP_UART_STOPBITS_1) stopbits = USART_StopBits_1;
    else if(stopb == BSP_UART_STOPBITS_2)stopbits = USART_StopBits_2;
    else stopbits = USART_StopBits_1;

    if(p == BSP_UART_PARITY_NO) parity = USART_Parity_No;
    else if(p == BSP_UART_PARITY_EVEN) parity = USART_Parity_Even;
    else if(p == BSP_UART_PARITY_ODD) parity = USART_Parity_Odd;
    else parity = USART_Parity_No;

    do {
        GPIO_InitTypeDef GPIO_InitStructure;

        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
        RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, ENABLE);

        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOC, &GPIO_InitStructure);
        GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
        GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
        GPIO_Init(GPIOD, &GPIO_InitStructure);
    } while(0);

    do {
        USART_InitTypeDef USART_InitStructure;
        u16 USART_WordLength = USART_WordLength_8b;
        USART_DeInit(UART5);
        bsp_uart5_cleanAllBuffer();        

        if(parity!=USART_Parity_No && 7 != databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        if(9==databits) {
            USART_WordLength = USART_WordLength_9b;
        }

        USART_InitStructure.USART_BaudRate = bps;
        USART_InitStructure.USART_WordLength = USART_WordLength;
        USART_InitStructure.USART_StopBits = stopbits;
        USART_InitStructure.USART_Parity = parity;
        USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
        USART_InitStructure.USART_Mode = USART_Mode_Rx|USART_Mode_Tx;
        USART_Init(UART5, &USART_InitStructure);
        /* 使能发送完成中断*/
        USART_ITConfig(UART5,USART_IT_RXNE,ENABLE);
        USART_ITConfig(UART5,USART_IT_TC, ENABLE);
        USART_ITConfig(UART5,USART_IT_TXE, DISABLE);
        USART_Cmd(UART5, ENABLE);

        USART_ClearFlag(UART5, USART_FLAG_TC); 
    } while(0);

    do {
        NVIC_InitTypeDef NVIC_InitStructure;
        NVIC_InitStructure.NVIC_IRQChannel = UART5_IRQn;
        NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
        NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
        NVIC_Init(&NVIC_InitStructure);

    } while(0);
}

static vu32 uart1_transfer_complete = 0; /* USART1发送完成*/
vu32 uart2_transfer_complete = 0;        /* USART2发送完成*/
static vu32 uart3_transfer_complete = 0; /* USART3发送完成*/
static vu32 uart4_transfer_complete = 0; /* USART4发送完成*/
static vu32 uart5_transfer_complete = 0; /* USART5发送完成*/

/*
******************************************************************************
**  Ret :  1  = 传输完成
**           other = 启动传输的时刻
**  note : systemTickMs() - Ret(other) = 传输时间
******************************************************************************
*/
u32 bsp_uart1_transferComplete(void)
{
    return uart1_transfer_complete;
}
u32 bsp_uart2_transferComplete(void)
{
    return uart2_transfer_complete;
}
u32 bsp_uart3_transferComplete(void)
{
    return uart3_transfer_complete;
}
u32 bsp_uart4_transferComplete(void)
{
    return uart4_transfer_complete;
}
u32 bsp_uart5_transferComplete(void)
{
    return uart5_transfer_complete;
}
/*
***************************************************************
**  brief : usart1 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/
void bsp_uart1_send_u8(u8* buf, u16 size) 
{
    if(size > USART1_SEND_BUF_SIZE) 
    {
        return;
    }
    memcpy(USART1_SEND_BUF, buf, size);

    DMA_Cmd(DMA1_Channel4, DISABLE);/* 关闭DMA传输*/
    DMA1_Channel4->CNDTR=size;      /* 改变数据传输量*/
    DMA_Cmd(DMA1_Channel4, ENABLE); /* 开启DMA传输*/
    uart1_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart1 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/
void bsp_uart1_send_u16(u16* buf, u16 size) 
{
    if(size*2 > USART1_SEND_BUF_SIZE) 
    {
        return;
    }

    memcpy(USART1_SEND_BUF, buf, size*2);

    DMA_Cmd(DMA1_Channel4, DISABLE); 
    DMA1_Channel4->CNDTR=size; 
    DMA_Cmd(DMA1_Channel4, ENABLE);
    uart1_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart2 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/

void bsp_uart2_send_u8(u8* buf, u16 size) {
    if(size > USART2_SEND_BUF_SIZE) {
        return;
    }
    memcpy(USART2_SEND_BUF, buf, size);

    DMA_Cmd(DMA1_Channel7, DISABLE); 
    DMA1_Channel7->CNDTR=size; 

    DMA_Cmd(DMA1_Channel7, ENABLE);
    uart2_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart2 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/

void bsp_uart2_send_u16(u16* buf, u16 size) 
{
    if(size*2 > USART2_SEND_BUF_SIZE) 
    {
        return;
    }

    memcpy(USART2_SEND_BUF, buf, size*2);

    DMA_Cmd(DMA1_Channel7, DISABLE);
    DMA1_Channel7->CNDTR=size;

    DMA_Cmd(DMA1_Channel7, ENABLE);
    uart2_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart3 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/

void bsp_uart3_send_u8(u8* buf, u16 size) 
{
    memcpy(USART3_SEND_BUF, buf, size);

    DMA_Cmd(DMA1_Channel2, DISABLE);
    DMA1_Channel2->CNDTR=size; 

    DMA_Cmd(DMA1_Channel2, ENABLE);
    uart3_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart3 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/

void bsp_uart3_send_u16(u16* buf, u16 size) 
{
    if(size*2 > USART3_SEND_BUF_SIZE) 
    {
        return;
    }
    memcpy(USART3_SEND_BUF, buf, size*2);

    DMA_Cmd(DMA1_Channel2, DISABLE); 
    DMA1_Channel2->CNDTR=size; 

    DMA_Cmd(DMA1_Channel2, ENABLE);
    uart3_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart4发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/

void bsp_uart4_send_u8(u8* buf, u16 size) 
{
    memcpy(USART4_SEND_BUF, buf, size);

    DMA_Cmd(DMA2_Channel5, DISABLE); 
    DMA2_Channel5->CNDTR=size; 

    DMA_Cmd(DMA2_Channel5, ENABLE);
    uart4_transfer_complete = systemMs();
}
/*
***************************************************************
**  brief : usart4 发送数据
**  buf   : 待发送数据缓冲指针
**  size  : 待发送数据长度
***************************************************************
*/
void bsp_uart4_send_u16(u16* buf, u16 size) 
{
    if(size*2 > USART4_SEND_BUF_SIZE) 
    {
        return;
    }
    memcpy(USART4_SEND_BUF, buf, size*2);

    DMA_Cmd(DMA2_Channel5, DISABLE); 
    DMA2_Channel5->CNDTR=size;

    DMA_Cmd(DMA2_Channel5, ENABLE);
    uart4_transfer_complete = systemMs();
}

static vu16 usart5_send_size = 0;
static vu16 usart5_send_index = 0;
void bsp_uart5_send_u8(u8* buf, u16 size)
{
    if(size > USART5_SEND_BUF_SIZE) {
        return;
    }

    memcpy(USART5_SEND_BUF, buf, size);
    /* 已是能发送完成终端*/
    usart5_send_size = size;
    usart5_send_index = 0;
    USART_SendData(UART5, (u16)USART5_SEND_BUF[usart5_send_index]);
    ++usart5_send_index;
    uart5_transfer_complete = systemMs();
}

static usart_hook_func_t _g_uart1_recv_hook = NULL;
static usart_hook_func_t _g_uart2_recv_hook = NULL;
static usart_hook_func_t _g_uart3_recv_hook = NULL;
static usart_hook_func_t _g_uart4_recv_hook = NULL;
static usart_hook_func_t _g_uart5_recv_hook = NULL;

/* 串口接收中断钩子函数*/
void bsp_ISR_uart1_setRecvHook(usart_hook_func_t func) {
    _g_uart1_recv_hook = func;
}
void bsp_ISR_uart2_setRecvHook(usart_hook_func_t func) 
{
    _g_uart2_recv_hook = func;
}
void bsp_ISR_uart3_setRecvHook(usart_hook_func_t func) {
    _g_uart3_recv_hook = func;
}
void bsp_ISR_uart4_setRecvHook(usart_hook_func_t func) {
    _g_uart4_recv_hook = func;
}
void bsp_ISR_uart5_setRecvHook(usart_hook_func_t func) {
    _g_uart5_recv_hook = func;
}
/*
****************************************************************
**  breif : usart1 中断服务函数
**  note : 接收缓冲区非空中断使能
****************************************************************
*/
void USART1_IRQHandler(void)
{
    if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) 
    {/* 读数据寄存器非空*/
        u16 recv = USART_ReceiveData(USART1);
        USART_ClearITPendingBit(USART1,USART_IT_RXNE);
        bsp_ISR_uart1_putRecvData(recv&0xff);

        if( NULL != _g_uart1_recv_hook) 
        {
            (*_g_uart1_recv_hook)(recv);
        }
    }

    if(USART_GetITStatus(USART1, USART_IT_TXE) == SET)
    {/* 发送数据寄存器空*/
        USART_ClearITPendingBit(USART1, USART_IT_TXE);
    }

    /* 提示: USART_IT_TC 需要在 USART_IT_ORE 之前处理*/
    if(USART_GetITStatus(USART1, USART_IT_TC)==SET) 
    {/* 发送完成*/
        USART_ClearITPendingBit(USART1, USART_IT_TC);
    }

    /*
      ** 因 某些原因没处理过来,引起了串口的数据还没被读出的
      ** 时候就又收到了新的数据CPU就会出现不停进入中断的问
      ** 题.必须读 SR,再读DR,以解决溢出错误
      ** 注意:不能使用USART_GetITStatus()来读取USART_IT_ORE
      */
    if(USART_GetFlagStatus(USART1, USART_IT_ORE) == SET) 
    {/* 过载错误*/
        USART_ClearFlag(USART1, USART_IT_ORE);  //读 SR
        USART_ReceiveData(USART1);   //读 DR
    }
}
/*
****************************************************************
**  breif : usart2 中断服务函数
**  note : 接收缓冲区非空中断使能
****************************************************************
*/

void USART2_IRQHandler(void)
{
    if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) 
    {
        u16 recv = USART_ReceiveData(USART2);
        USART_ClearITPendingBit(USART2, USART_IT_RXNE);
        bsp_ISR_uart2_putRecvData(recv&0xff);

        if( NULL != _g_uart2_recv_hook ) 
        {
            (*_g_uart2_recv_hook)(recv);
        }
    }

    if(USART_GetITStatus(USART2, USART_IT_TXE) == SET)
    {
        USART_ClearITPendingBit(USART2, USART_IT_TXE);
    }

    if(USART_GetITStatus(USART2, USART_IT_TC)==SET) {
        USART_ClearITPendingBit(USART2, USART_IT_TC);
    }

    if(USART_GetFlagStatus(USART2, USART_IT_ORE) == SET) {
        USART_ClearFlag(USART2, USART_IT_ORE);  
        USART_ReceiveData(USART2);   
    }
}
/*
****************************************************************
**  breif : usart3 中断服务函数
**  note : 接收缓冲区非空中断使能
****************************************************************
*/

void USART3_IRQHandler(void)
{
    if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET) {
        u16 recv = USART_ReceiveData(USART3);
        USART_ClearITPendingBit(USART3, USART_IT_RXNE);
        bsp_ISR_uart3_putRecvData(recv&0xff);

        if( NULL != _g_uart3_recv_hook) {
            (*_g_uart3_recv_hook)(recv);
        }
    }

    if(USART_GetITStatus(USART3, USART_IT_TXE) == SET){
        USART_ClearITPendingBit(USART3, USART_IT_TXE);
    }

    if(USART_GetITStatus(USART3, USART_IT_TC)==SET) {
        USART_ClearITPendingBit(USART3, USART_IT_TC);
    }

    if(USART_GetFlagStatus(USART3, USART_IT_ORE) == SET) {
        USART_ClearFlag(USART3, USART_IT_ORE);  
        USART_ReceiveData(USART3);  
    }
}
/*
****************************************************************
**  breif : usart4 中断服务函数
**  note : 接收缓冲区非空中断使能
****************************************************************
*/

void UART4_IRQHandler(void)
{
    if( USART_GetITStatus(UART4, USART_IT_RXNE) != RESET) 
    {
        u16 recv = USART_ReceiveData(UART4);
        USART_ClearITPendingBit(UART4, USART_IT_RXNE);
        bsp_ISR_uart4_putRecvData(recv&0xff);

        if( NULL != _g_uart4_recv_hook) 
        {
            (*_g_uart4_recv_hook)(recv);
        }
    }

    if(USART_GetITStatus(UART4, USART_IT_TXE) == SET)
    {
        USART_ClearITPendingBit(UART4, USART_IT_TXE);
    }

    if(USART_GetITStatus(UART4, USART_IT_TC)==SET) 
    {
        USART_ClearITPendingBit(UART4, USART_IT_TC);
    }

    if(USART_GetFlagStatus(UART4, USART_IT_ORE) == SET) 
    {
        USART_ClearFlag(UART4, USART_IT_ORE); 
        USART_ReceiveData(UART4);
    }
}
/*
****************************************************************
**  breif : usart1 中断服务函数
**  note : 接收缓冲区非空中断使能
**            发送完成中断使能
****************************************************************
*/

void UART5_IRQHandler(void)
{
    if(USART_GetITStatus(UART5, USART_IT_RXNE) != RESET) 
    {
        u16 recv = USART_ReceiveData(UART5);
        USART_ClearITPendingBit(UART5, USART_IT_RXNE);
        bsp_ISR_uart5_putRecvData(recv&0xff);

        if( NULL != _g_uart5_recv_hook) 
        {
            (*_g_uart5_recv_hook)(recv);
        }
    }

    if(USART_GetITStatus(UART5, USART_IT_TXE) == SET){
        USART_ClearITPendingBit(UART5, USART_IT_TXE);
    }

    if(USART_GetITStatus(UART5, USART_IT_TC)==SET) {
        USART_ClearITPendingBit(UART5, USART_IT_TC);

        if(usart5_send_index < usart5_send_size) {
            USART_SendData(UART5, (u16)USART5_SEND_BUF[usart5_send_index]);
            ++usart5_send_index;
        } else {
            uart5_transfer_complete = 0;
        }
    }

    if(USART_GetFlagStatus(UART5, USART_IT_ORE) == SET) {
        USART_ClearFlag(UART5, USART_IT_ORE);  
        USART_ReceiveData(UART5);   
    }
}

/* 
*******************************************************************
**  breif : DMA1 Channel4 发送完成中断
**  note : usart1
*******************************************************************
*/
void DMA1_Channel4_IRQHandler(void) 
{
    if(DMA_GetITStatus(DMA1_IT_TC4)) {
        DMA_ClearITPendingBit(DMA1_IT_TC4);
    }
    DMA_Cmd(DMA1_Channel4,DISABLE); 
    uart1_transfer_complete = 1;
}

/* 
*******************************************************************
**  breif : DMA1 Channel2 发送完成中断
**  note : usart3
*******************************************************************
*/

void DMA1_Channel2_IRQHandler(void)
{
    if(DMA_GetITStatus(DMA1_IT_TC2)) {
        DMA_ClearITPendingBit(DMA1_IT_TC2);
    }
    DMA_Cmd(DMA1_Channel2,DISABLE);
    uart3_transfer_complete = 1;
}

/* 
*******************************************************************
**  breif : DMA1 Channel7 发送完成中断
**  note : usart2
*******************************************************************
*/
void DMA1_Channel7_IRQHandler(void)
{
    if(DMA_GetITStatus(DMA1_IT_TC7)) {
        DMA_ClearITPendingBit(DMA1_IT_TC7);
    }
    DMA_Cmd(DMA1_Channel7,DISABLE);
    uart2_transfer_complete = 1;
}

/* 
*******************************************************************
**  breif : DMA2 Channel5 发送完成中断
**  note : usart4 ,程序有Bug
*******************************************************************
*/

void DMA2_Channel4_5_IRQHandler(void)
{
    if(DMA_GetITStatus(DMA2_IT_TC4)) {
        DMA_ClearITPendingBit(DMA2_IT_TC4);
        DMA_Cmd(DMA2_Channel4,DISABLE);
        uart4_transfer_complete = 1;
    }

    if(DMA_GetITStatus(DMA2_IT_TC5)) {
        DMA_ClearITPendingBit(DMA2_IT_TC5);
        DMA_Cmd(DMA2_Channel5,DISABLE);
    }
}

/*
**********************************************************
**  breif : 将数据载入接收缓冲区
**  note : 数据载入Head方向
**********************************************************
*/
#define macro_ISR_uart_putRecvData(uartNo) \
void bsp_ISR_uart##uartNo##_putRecvData(u8 data) {\
    bsp_disableIrq();\
    u16 rxd_head;\
    rxd_head = uart##uartNo##RecvHead + 1 ; \
    if( rxd_head >= USART##uartNo##_RECV_BUF_SIZE ) \
        rxd_head = 0;\
    UART##uartNo##_RECV_BUF[uart##uartNo##RecvHead] = data;\
    uart##uartNo##RecvHead = rxd_head;\
    bsp_enableIrq();\
}

/*
****************************************************************************
**  breif : 将数据放置在发送缓冲区
**  note : 数据载入Head方向 
**           这个方法平时并不使用，只在特殊应用下用到
****************************************************************************
*/
#define macro_ISR_uart_putSendData(uartNo) \
void bsp_ISR_uart##uartNo##_putSendData(u8 data) {\
    bsp_disableIrq();\
    u16 rxd_head;\
    rxd_head = uart##uartNo##SendHead + 1 ;\
    if( rxd_head >= USART##uartNo##_SEND_BUF_SIZE ) \
        rxd_head = 0;\
    USART##uartNo##_SEND_BUF[uart##uartNo##SendHead] = data;\
    uart##uartNo##SendHead = rxd_head;\
    bsp_enableIrq();\
}
/*
****************************************************************************
**  breif : 读接收缓冲区中的数据
**  Ret   : 1. EMPTY 数据缓冲区为空
**            2. 数据
**  note : 从Tail方向读取
****************************************************************************
*/
#define macro_uart_getRecvData(uartNo) \
u16 bsp_uart##uartNo##_getRecvData(void)\
{\
    bsp_disableIrq();\
    if(uart##uartNo##RecvHead==uart##uartNo##RecvTail) {\
        bsp_enableIrq();\
        return EMPTY;\
    }\
    u16 ch=UART##uartNo##_RECV_BUF[uart##uartNo##RecvTail];\
    UART##uartNo##_RECV_BUF[uart##uartNo##RecvTail] = 0;\
    uart##uartNo##RecvTail++;\
    if(uart##uartNo##RecvTail>=USART##uartNo##_RECV_BUF_SIZE)\
        uart##uartNo##RecvTail = 0;\
    bsp_enableIrq();\
    return ch;\
}
/*
****************************************************************************
**  breif : 读发送缓冲区中的数据
**  Ret   : 1. EMPTY 数据缓冲区为空
**            2. 数据
**  note : 从Tail方向读取
****************************************************************************
*/
#define macro_uart_getSendData(uartNo) \
u16 bsp_uart##uartNo##_getSendData(void)\
{\
    bsp_disableIrq();\
    if(uart##uartNo##SendHead==uart##uartNo##SendTail) {\
        bsp_enableIrq();\
        return EMPTY;\
    }\
    u16 ch=USART##uartNo##_SEND_BUF[uart##uartNo##SendTail];\
    USART##uartNo##_SEND_BUF[uart##uartNo##SendTail] = 0;\
    uart##uartNo##SendTail++;\
    if(uart##uartNo##SendTail>=USART##uartNo##_SEND_BUF_SIZE)\
        uart##uartNo##SendTail = 0;\
    bsp_enableIrq();\
    return ch;\
}
/*
****************************************************************************
**  breif : 接收缓冲区是否满
**  Ret   : 1. 满
**            0. 未满
****************************************************************************
*/
#define macro_uart_recvBufIsFull(uartNo) \
u8 bsp_uart##uartNo##_recvBufIsFull(void) \
{\
    bsp_disableIrq();\
    u16 head = uart##uartNo##RecvHead+1;\
    if(head >= USART##uartNo##_RECV_BUF_SIZE) {\
        head = 0;\
    }\
    if(head == uart##uartNo##RecvTail) {\
        bsp_enableIrq();\
        return 1;\
    } else {\
        bsp_enableIrq();\
        return 0;\
    }\
}

/*
****************************************************************************
**  breif : 发送缓冲区是否满
**  Ret   : 1. 满
**            0. 未满
****************************************************************************
*/
#define macro_uart_sendBufIsFull(uartNo) \
u8 bsp_uart##uartNo##_sendBufIsFull(void)\
{\
    bsp_disableIrq();\
    u16 head = uart##uartNo##SendHead+1;\
    if(head >= USART##uartNo##_SEND_BUF_SIZE) {\
        head = 0;\
    }\
    if(head == uart##uartNo##SendTail) {\
        bsp_enableIrq();\
        return 1;\
    } else {\
        bsp_enableIrq();\
        return 0;\
    }\
}

/*
****************************************************************************
**  breif : 接收缓冲区是否空
**  Ret   : 1. 空
**            0. 非空
****************************************************************************
*/
#define macro_uart_sendBufIsEmpty(uartNo) \
u8 bsp_uart##uartNo##_sendBufIsEmpty(void)\
{\
    bsp_disableIrq();\
    if(uart##uartNo##SendHead==uart##uartNo##SendTail){ \
        bsp_enableIrq();\
        return 1;\
    }\
    else {\
        bsp_enableIrq();\
        return 0;\
    }\
}
/*
****************************************************************************
**  breif : 清空接收和发送缓冲区
****************************************************************************
*/

#define macro_uart_cleanAllBuffer(uartNo) \
void bsp_uart##uartNo##_cleanAllBuffer(void) \
{\
    bsp_disableIrq();\
    uart##uartNo##RecvHead = uart##uartNo##RecvTail;\
    uart##uartNo##SendHead = uart##uartNo##SendTail;\
    bsp_enableIrq();\
}
/*
****************************************************************************
**  breif : 计算接收缓冲区剩余空间
**  Ret   : 剩余字节数
****************************************************************************
*/

#define macro_uart_recvBufRemain(uartNo) \
u16 bsp_uart##uartNo##_recvBufRemain(void)\
{\
    bsp_disableIrq();\
    if(uart##uartNo##RecvHead >= uart##uartNo##RecvTail) {\
        u16 v = (USART##uartNo##_RECV_BUF_SIZE-uart##uartNo##RecvHead)+uart##uartNo##RecvTail;\
        bsp_enableIrq();\
        return v;\
    } else {\
        u16 v = (uart##uartNo##RecvTail - uart##uartNo##RecvHead) - 1;\
        bsp_enableIrq();\
        return v;\
    }\
}

/*
****************************************************************************
**  breif : 发送缓冲区剩余空间
**  Ret   : 剩余字节数
****************************************************************************
*/

#define macro_uart_sendbufRemain(uartNo) \
u16 bsp_uart##uartNo##_sendbufRemain(void)\
{\
    bsp_disableIrq();\
    if(uart##uartNo##SendHead >= uart##uartNo##SendTail) {\
        u16 v = (USART##uartNo##_SEND_BUF_SIZE-uart##uartNo##SendHead)+uart##uartNo##SendTail;\
        bsp_enableIrq();\
        return v;\
    } else {\
        u16 v = (uart##uartNo##SendTail - uart##uartNo##SendHead) - 1;\
        bsp_enableIrq();\
        return v;\
    }\
}

macro_ISR_uart_putRecvData(1);
macro_ISR_uart_putRecvData(2);
macro_ISR_uart_putRecvData(3);
macro_ISR_uart_putRecvData(4);
macro_ISR_uart_putRecvData(5);
macro_ISR_uart_putSendData(1);
macro_ISR_uart_putSendData(2);
macro_ISR_uart_putSendData(3);
macro_ISR_uart_putSendData(4);
macro_ISR_uart_putSendData(5);
macro_uart_getRecvData(1);
macro_uart_getRecvData(2);
macro_uart_getRecvData(3);
macro_uart_getRecvData(4);
macro_uart_getRecvData(5);
macro_uart_getSendData(1);
macro_uart_getSendData(2);
macro_uart_getSendData(3);
macro_uart_getSendData(4);
macro_uart_getSendData(5);
macro_uart_sendBufIsEmpty(1);
macro_uart_sendBufIsEmpty(2);
macro_uart_sendBufIsEmpty(3);
macro_uart_sendBufIsEmpty(4);
macro_uart_sendBufIsEmpty(5);
macro_uart_cleanAllBuffer(1);
macro_uart_cleanAllBuffer(2);
macro_uart_cleanAllBuffer(3);
macro_uart_cleanAllBuffer(4);
macro_uart_cleanAllBuffer(5);

macro_uart_recvBufIsFull(1);
macro_uart_recvBufIsFull(2);
macro_uart_recvBufIsFull(3);
macro_uart_recvBufIsFull(4);
macro_uart_recvBufIsFull(5);
macro_uart_sendBufIsFull(1);
macro_uart_sendBufIsFull(2);
macro_uart_sendBufIsFull(3);
macro_uart_sendBufIsFull(4);
macro_uart_sendBufIsFull(5);

macro_uart_recvBufRemain(1);
macro_uart_recvBufRemain(2);
macro_uart_recvBufRemain(3);
macro_uart_recvBufRemain(4);
macro_uart_recvBufRemain(5);

macro_uart_sendbufRemain(1);
macro_uart_sendbufRemain(2);
macro_uart_sendbufRemain(3);
macro_uart_sendbufRemain(4);
macro_uart_sendbufRemain(5);