STM32串口通信測(cè)試程序

作者：時(shí)間：2016-11-28 來源：網(wǎng)絡(luò)

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//================================================

void Com5TxChar( vu8 i )

{

USART_SendData(UART5,i); //回發(fā)給PC

while(USART_GetFlagStatus(UART5, USART_FLAG_TXE)==RESET);

}

//---------------------

void Com5TxStr( vu8 *pt, vu8 length )

{

vu8 i;
for( i=0;i

{
Com5TxChar(*pt++);
}
// delay(10);

}

//----------------------------

void Com1TxChar( vu8 i )

{

USART_SendData(USART1,(u8) i); //回發(fā)給PC

while(USART_GetFlagStatus(USART1, USART_FLAG_TXE)==RESET)

{

}

// return i;

}

void Com1TxStr( vu8 *pt, vu8 length )

{

vu8 i;

for(i=0;i

Com1TxChar(*pt++);

}

// delay(10);

}

void Com2TxChar( vu8 i )

{

USART_SendData(USART2,(u8) i); //回發(fā)給PC

while(USART_GetFlagStatus(USART2, USART_FLAG_TXE)==RESET)

{

}

// return i;

}

void Com2TxStr( vu8 *pt, vu8 length )

{

vu8 i;

for(i=0;i

Com2TxChar(*pt++);

}

// delay(10);

}

void Com3TxChar( vu8 i )

{

USART_SendData(USART3,(u8) i); //回發(fā)給PC

while(USART_GetFlagStatus(USART3, USART_FLAG_TXE)==RESET)

{

}

// return i;

}

void Com3TxStr( vu8 *pt, vu8 length )

{

vu8 i;

for(i=0;i

Com3TxChar(*pt++);

}

// delay(10);

}

void Com4TxChar( vu8 i )

{

USART_SendData(UART4,(u8) i); //回發(fā)給PC

while(USART_GetFlagStatus(UART4, USART_FLAG_TXE)==RESET)

{

}

// return i;

}

void Com4TxStr( vu8 *pt, vu8 length )

{

vu8 i;

for(i=0;i

Com4TxChar(*pt++);

}

// delay(10);

}

void TIM2_IRQHandler(void)

{

vu8 i;

if (TIM_GetITStatus(TIM2, TIM_IT_CC1) != RESET)

{

TIM_ClearITPendingBit(TIM2, TIM_IT_CC1);

cnt1++;

cnt2++;

if(cnt1>=500)

{

// polling=1;

cnt1=0;

}

if(cnt2>=nt2) //RUNLED,WDI

{

GPIO_WriteBit(GPIOA, GPIO_Pin_0, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_0)));

if(Alert_flag==1)

{

GPIO_WriteBit(GPIOA, GPIO_Pin_6, (BitAction)(1 - GPIO_ReadOutputDataBit(GPIOA, GPIO_Pin_6)));

}

cnt2=0;

}

Time20msCnt++; // 秒級(jí)硬件延時(shí)

if( Time20msCnt>=50 && T1sCnt ){

Time20msCnt=0;

T1sCnt--;

}

if(T20msCnt){ //20ms單位延時(shí)

T20msCnt--;

}

capture1 = TIM_GetCapture1(TIM2);

TIM_SetCompare1(TIM2, capture1 + CCR1_Val );

}

if (TIM_GetITStatus(TIM2, TIM_IT_CC2) != RESET)

{

TIM_ClearITPendingBit(TIM2, TIM_IT_CC2);

capture2 = TIM_GetCapture2(TIM2);

TIM_SetCompare2(TIM2, capture2 + CCR2_Val );

}

//********串口COM5配置*****************************

void UART5_Configuration(void)

{

USART_InitTypeDef USART_InitStructure; //串口設(shè)置恢復(fù)默認(rèn)參數(shù)

USART_InitStructure.USART_BaudRate = 115200; //波特率115200

USART_InitStructure.USART_WordLength = USART_WordLength_8b; //字長(zhǎng)8位

USART_InitStructure.USART_StopBits = USART_StopBits_1; //1位停止字節(jié)

USART_InitStructure.USART_Parity = USART_Parity_No; //無奇偶校驗(yàn)

USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; //無流控制

USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //打開Rx接收和Tx發(fā)送功能

//USART_Init(USART1, &USART_InitStructure);

USART_Init(UART5, &USART_InitStructure); //初始化

// USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

// USART_ITConfig(USART1, USART_IT_TXE, ENABLE);

USART_ITConfig(UART5, USART_IT_RXNE, ENABLE); // 若接收數(shù)據(jù)寄存器滿，則產(chǎn)生中斷

//USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);

// USART_ITConfig(UART5, USART_IT_TXE, ENABLE);

USART_Cmd(UART5, ENABLE); //啟動(dòng)串口

//USART_Cmd(USART1, ENABLE);

//-----如下語句解決第1個(gè)字節(jié)無法正確發(fā)送出去的問題-----//

USART_ClearFlag(UART5, USART_FLAG_TC); // 清標(biāo)志

//USART_ClearFlag(USART1, USART_FLAG_TC);

}

//************串口COM1~COM44配置*********************************
void USART_Configuration(void)

{

USART_InitTypeDef USART_InitStructure; //串口設(shè)置恢復(fù)默認(rèn)參數(shù)

USART_InitStructure.USART_BaudRate = 1200; //波特率1200

USART_InitStructure.USART_WordLength = USART_WordLength_8b; //字長(zhǎng)8位

USART_InitStructure.USART_StopBits = USART_StopBits_1; //1位停止字節(jié)

USART_InitStructure.USART_Parity = USART_Parity_No; //無奇偶校驗(yàn)

USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; //無流控制

USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //打開Rx接收和Tx發(fā)送功能

USART_Init(USART1, &USART_InitStructure);

USART_Init(USART2, &USART_InitStructure);

USART_Init(USART3, &USART_InitStructure);

USART_Init(UART4 , &USART_InitStructure);

USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);// 若接收數(shù)據(jù)寄存器滿，則產(chǎn)生中斷

USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);

USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);

USART_ITConfig(UART4 , USART_IT_RXNE, ENABLE);

USART_Cmd(USART1, ENABLE); //啟動(dòng)串口

USART_Cmd(USART2, ENABLE);

USART_Cmd(USART3, ENABLE);

USART_Cmd(UART4, ENABLE);

//-----如下語句解決第1個(gè)字節(jié)無法正確發(fā)送出去的問題-----//

USART_ClearFlag(USART1, USART_FLAG_TC);// 清標(biāo)志

USART_ClearFlag(USART2, USART_FLAG_TC);

USART_ClearFlag(USART3, USART_FLAG_TC);

USART_ClearFlag(UART4 , USART_FLAG_TC);

}

//**********串口中斷函數(shù)********************

void UART5_IRQHandler(void)

{

uchar x,y,z;

uint checksum1,checksum2;

if(USART_GetITStatus(UART5, USART_IT_RXNE) != RESET) //若接收數(shù)據(jù)寄存器滿

{

x=USART_ReceiveData(UART5);

}

Com5TxChar(x);

}

//------------------------------------------------

void USART1_IRQHandler(void)

{

if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //若接收數(shù)據(jù)寄存器滿

{

Com1RecDat[Com1RecCnt]=USART_ReceiveData(USART1);

}

Com1RecCnt++;

Com1RecCnt%=C1_LEN;

Com1TxChar(USART_ReceiveData(USART1));

}

//----------------------------------------------

void USART2_IRQHandler(void)

{

if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) //若接收數(shù)據(jù)寄存器滿

{

Com2RecDat[Com2RecCnt]=USART_ReceiveData(USART2);

}

Com2RecCnt++;

Com2RecCnt%=C1_LEN;

Com2TxChar(USART_ReceiveData(USART2));

}

//-------------------------------------------------

void USART3_IRQHandler(void)

{

if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET) //若接收數(shù)據(jù)寄存器滿

{

Com3RecDat[Com3RecCnt]=USART_ReceiveData(USART3);

}

Com3RecCnt++;

Com3RecCnt%=C1_LEN;

Com3TxChar(USART_ReceiveData(USART3));

}

//----------------------------------------------------

void UART4_IRQHandler(void)

{

if(USART_GetITStatus(UART4, USART_IT_RXNE) != RESET) //若接收數(shù)據(jù)寄存器滿

{

Com4RecDat[Com4RecCnt]=USART_ReceiveData(UART4);

}

Com4RecCnt++;

Com4RecCnt%=C1_LEN;

Com4TxChar(USART_ReceiveData(UART4));

}

//*****************主函數(shù)************************

int main(void)

{

u8 ld[69]=0;

u8 i;

RCC_Configuration();

GPIO_Configuration();

NVIC_Configuration();

UART5_Configuration();

USART_Configuration();

TIM2_Configuration();

SysTick_Configuration();

for(i=0;i<69;i++)

{

ld[i]=i;

}

Com1TxStr(ld,69);

Com2TxStr(ld,69);

Com3TxStr(ld,69);

Com4TxStr(ld,69);

Com5TxStr(ld,69);

while(1)

{

}

//-------------------------------------------------------------

本文引用地址：http://cafeforensic.com/article/201611/322880.htm

http://long0329998.blog.163.com/blog/static/58823187201252611116247/

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