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stm32多串口收發(fā)數(shù)據(jù)
#include "user_usart.h"
#include "stm32f10x_usart.h"
#include "user_adc.h"
#include "user_74_595.h"
#include "user_74_165.h"
#include "user_gpio.h"
/*使用microLib的方法*/
/*
int fputc(int ch, FILE *f)
{
USART_SendData(USART1, (uint8_t) ch);
while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET) {}
return ch;
}
int GetKey (void) {
while (!(USART1->SR & USART_FLAG_RXNE));
return ((int)(USART1->DR & 0x1FF));
}
*/
//#if EN_USART1_RX //如果使能了接收
//#if EN_USART1_RX //如果使能了接收
//串口1中斷服務(wù)程序
//注意,讀取USARTx->SR能避免莫名其妙的錯(cuò)誤
//u8 USART_RX_BUF[USART_REC_LEN]; //接收緩沖,最大USART_REC_LEN個(gè)字節(jié).
//接收狀態(tài)
//bit15， 接收完成標(biāo)志
//bit14， 接收到0x0d
//bit13~0， 接收到的有效字節(jié)數(shù)目
u16 USART_RX_STA=0; //接收狀態(tài)標(biāo)記
//串口1隊(duì)列定義
u8 UART1SendBuff[UART1BuffSize]; //發(fā)送數(shù)據(jù)
u8 UART1ReceBuff[UART1BuffSize]; //接收數(shù)據(jù)？
u16 UART1ReceIn = 0;//接收狀態(tài)標(biāo)記數(shù)據(jù)位
u8 UART1ReceFullFlag = 0;//接收完數(shù)據(jù)標(biāo)志位
//串口2隊(duì)列定義
u8 UART2SendBuff[UART2BuffSize];
u8 UART2ReceBuff[UART2BuffSize];
u16 UART2ReceIn = 0;
u8 UART2ReceFullFlag = 0;
//串口3隊(duì)列定義
u8 UART3SendBuff[UART3BuffSize];
u8 UART3ReceBuff[UART3BuffSize];
u16 UART3ReceIn = 0;
u8 UART3ReceFullFlag = 0;
//串口1初始化
void USART1_Configuration(u32 bound)
{
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//開(kāi)啟GPIOA和USART1時(shí)鐘
//USART1_TX GPIOA.9
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; //PA.9
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //復(fù)用推挽輸出
GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.9
//USART1_RX GPIOA.10初始化
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//PA10
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空輸入
GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.10
//Usart1 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=2 ;//搶占優(yōu)先級(jí)3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //子優(yōu)先級(jí)3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根據(jù)指定的參數(shù)初始化VIC寄存器
//USART 初始化設(shè)置
USART_InitStructure.USART_BaudRate = bound;//串口波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長(zhǎng)為8位數(shù)據(jù)格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個(gè)停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//無(wú)奇偶校驗(yàn)位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無(wú)硬件數(shù)據(jù)流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發(fā)模式
USART_Init(USART1, &USART_InitStructure); //初始化串口1
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE); //開(kāi)啟串口接收中斷
USART_Cmd(USART1, ENABLE); //使能串口1
}
//串口2初始化
void USART2_Configuration(u32 bound)
{
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);//開(kāi)啟GPIOA和USART1時(shí)鐘
//USART2_TX GPIOA.2
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //PA.2
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //復(fù)用推挽輸出
GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.2
//USART2_RX GPIOA.3初始化
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;//PA3
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空輸入
GPIO_Init(GPIOA, &GPIO_InitStructure);//初始化GPIOA.3
//Usart2 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=2 ;//搶占優(yōu)先級(jí)3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //子優(yōu)先級(jí)3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根據(jù)指定的參數(shù)初始化VIC寄存器
//USART 初始化設(shè)置
USART_InitStructure.USART_BaudRate = bound;//串口波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長(zhǎng)為8位數(shù)據(jù)格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個(gè)停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//無(wú)奇偶校驗(yàn)位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無(wú)硬件數(shù)據(jù)流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發(fā)模式
USART_Init(USART2, &USART_InitStructure); //初始化串口2
USART_ITConfig(USART2,USART_IT_RXNE,ENABLE); //開(kāi)啟串口接收中斷
USART_Cmd(USART2, ENABLE); //使能串口2
}
//串口3初始化
void USART3_Configuration(u32 bound)
{
GPIO_InitTypeDef GPIO_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);//開(kāi)啟GPIOA和USART1時(shí)鐘
//USART3_TX GPIOB.10
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10; //PB.10
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //復(fù)用推挽輸出
GPIO_Init(GPIOB, &GPIO_InitStructure);//初始化GPIOA.10
//USART3_RX GPIOB.3初始化
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;//PB11
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//浮空輸入
GPIO_Init(GPIOB, &GPIO_InitStructure);//初始化GPIOB.11
//Usart3 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=2 ;//搶占優(yōu)先級(jí)3
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //子優(yōu)先級(jí)3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根據(jù)指定的參數(shù)初始化VIC寄存器
//USART 初始化設(shè)置
USART_InitStructure.USART_BaudRate = bound;//串口波特率
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字長(zhǎng)為8位數(shù)據(jù)格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一個(gè)停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//無(wú)奇偶校驗(yàn)位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//無(wú)硬件數(shù)據(jù)流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收發(fā)模式
USART_Init(USART3, &USART_InitStructure); //初始化串口3
USART_ITConfig(USART3,USART_IT_RXNE,ENABLE); //開(kāi)啟串口接收中斷
USART_Cmd(USART3, ENABLE); //使能串口3
}
//串口1發(fā)送一幀數(shù)據(jù)
void USART1_SendOneData(uint8_t SendOneData)
{
USART_SendData(USART1, SendOneData);
while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)
{}
}
//串口2發(fā)送一幀數(shù)據(jù)
void USART2_SendOneData(uint8_t SendOneData)
{
USART_SendData(USART2, SendOneData);
while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET)
{}
}
//串口3發(fā)送一幀數(shù)據(jù)
void USART3_SendOneData(uint8_t SendOneData)
{
USART_SendData(USART3, SendOneData);
while (USART_GetFlagStatus(USART3, USART_FLAG_TC) == RESET)
{}
}
//串口1發(fā)送一列數(shù)據(jù)
void USART1_SendUnfixedData(uint8_t *Buffer, uint8_t Length)
{
uint8_t i;
for(i=0;i<Length;i++)
{
USART1_SendOneData(*Buffer++);
}
}
//串口2發(fā)送一列數(shù)據(jù)
void USART2_SendUnfixedData(uint8_t *Buffer, uint8_t Length)
{
uint8_t i;
for(i=0;i<Length;i++)
{
USART2_SendOneData(*Buffer++);
}
}
//串口3發(fā)送一列數(shù)據(jù)
void USART3_SendUnfixedData(uint8_t *Buffer, uint8_t Length)
{
uint8_t i;
LED_ON;
for(i=0;i<Length;i++)
{
USART3_SendOneData(*Buffer++);
}
LED_OFF;
}
//串口1中斷服務(wù)函數(shù)
void USART1_IRQHandler(void)
{
u8 Res;//數(shù)據(jù)暫存
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //接收中斷
{
Res =USART_ReceiveData(USART1); //讀取接收到的數(shù)據(jù)
switch(UART1ReceIn)//讀取接收到的數(shù)據(jù)有幾位 每一位對(duì)應(yīng)的數(shù)據(jù)協(xié)議校驗(yàn)
{
case 0:
if(Res=='T')
UART1ReceBuff[UART1ReceIn++] = Res;
else
UART1ReceIn = 0;
break;
case 1:
if(Res=='M')
UART1ReceBuff[UART1ReceIn++] = Res;
else
UART1ReceIn = 0;
break;
case 2:
if(Res==0x0f)
UART1ReceBuff[UART1ReceIn++] = Res;
else
UART1ReceIn = 0;
break;
case 3:
if(Res==0x01)
UART1ReceBuff[UART1ReceIn++] = Res;
else
UART1ReceIn = 0;
break;
case 4:
if(Res==0x31)
UART1ReceBuff[UART1ReceIn++] = Res;
else
UART1ReceIn = 0;
break;
default:
UART1ReceBuff[UART1ReceIn++] = Res;
break;
}
if(UART1ReceIn >= 57)
{
UART1ReceFullFlag = 1; //數(shù)據(jù)完整接受完
}
USART_ClearITPendingBit(USART1, USART_IT_RXNE);//清除相對(duì)應(yīng)的中斷位 清除中斷預(yù)處理位USART_ClearITPendingBit左移八位是USART_ClearFlag
}
else if(USART_GetITStatus(USART1, USART_IT_TXE) != RESET) // 發(fā)送中斷 USART_GetITStatus
{
USART_ClearITPendingBit(USART1, USART_IT_TXE); // clear interrupt 清除中斷預(yù)處理位
}
}
//串口2中斷服務(wù)函數(shù)
void USART2_IRQHandler(void)
{
u8 Res;
#if SYSTEM_SUPPORT_OS //如果SYSTEM_SUPPORT_OS為真，則需要支持OS.
OSIntEnter();
#endif
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) //接收中斷(接收到的數(shù)據(jù)必須是0x0d 0x0a結(jié)尾)
{
Res =USART_ReceiveData(USART2); //讀取接收到的數(shù)據(jù)USART_ReceiveData
if((USART_RX_STA&0x8000)==0)//接收未完成
{
if(USART_RX_STA&0x4000)//接收到了0x0d
{
if(Res!=0x0a)USART_RX_STA=0;//接收錯(cuò)誤,重新開(kāi)始
else USART_RX_STA|=0x8000; //接收完成了
}
else //還沒(méi)收到0X0D
{
if(Res==0x0d)USART_RX_STA|=0x4000;
else
{
UART2ReceBuff[USART_RX_STA&0X3FFF]=Res ;
USART_RX_STA++;
if(USART_RX_STA>(USART_REC_LEN-1))USART_RX_STA=0;//接收數(shù)據(jù)錯(cuò)誤,重新開(kāi)始接收
}
}
}
}
#if SYSTEM_SUPPORT_OS //如果SYSTEM_SUPPORT_OS為真，則需要支持OS.
OSIntExit();
#endif
}
//串口3中斷服務(wù)函數(shù)
void USART3_IRQHandler(void)
{
u8 Res;//數(shù)據(jù)暫存
if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET) //接收中斷
{
Res =USART_ReceiveData(USART3); //讀取接收到的數(shù)據(jù) USART_ReceiveData
switch(UART3ReceIn)//讀取接收到的數(shù)據(jù)有幾位 每一位對(duì)應(yīng)的數(shù)據(jù)協(xié)議校驗(yàn)
{
case 0:
if(Res=='T')
UART3ReceBuff[UART3ReceIn++] = Res;
else
UART3ReceIn = 0;
break;
case 1:
if(Res=='M')
UART3ReceBuff[UART3ReceIn++] = Res;
else
UART3ReceIn = 0;
break;
case 2:
if(Res==0x0f)
UART3ReceBuff[UART3ReceIn++] = Res;
else
UART3ReceIn = 0;
break;
case 3:
if(Res==0x01)
UART3ReceBuff[UART3ReceIn++] = Res;
else
UART3ReceIn = 0;
break;
case 4:
if(Res==0x31)
UART3ReceBuff[UART3ReceIn++] = Res;
else
UART3ReceIn = 0;
break;
default:
UART3ReceBuff[UART3ReceIn++] = Res;
break;
}
if(UART3ReceIn >= 57)
{
UART3ReceFullFlag = 1; //數(shù)據(jù)完整接受完
}
USART_ClearITPendingBit(USART3, USART_IT_RXNE);//清除相對(duì)應(yīng)的中斷位 清除中斷預(yù)處理位USART_ClearITPendingBit左移八位是USART_ClearFlag
}
else if(USART_GetITStatus(USART3, USART_IT_TXE) != RESET) // 發(fā)送中斷 USART_GetITStatus
{
USART_ClearITPendingBit(USART3, USART_IT_TXE); // clear interrupt 清除中斷預(yù)處理位
}
}
//發(fā)送開(kāi)關(guān)量輸入數(shù)據(jù)
void SendInputData(void)
{
// 組包，第一幀
UART1SendBuff[0] = 0XAA;
UART1SendBuff[1] = 0XBB;
UART1SendBuff[2] = ReadInData.ByteData[0];
UART1SendBuff[3] = ReadInData.ByteData[1];
UART1SendBuff[4] = ReadInData.ByteData[2];
UART1SendBuff[5] = ReadInData.ByteData[3]; //165檢測(cè)結(jié)構(gòu)
UART1SendBuff[6] = 0XCC;
UART1SendBuff[7] = 0XDD;
// 發(fā)送第一幀數(shù)據(jù)
USART3_SendUnfixedData(UART1SendBuff,8);
Delay_m(350); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
}
void SendAnalogData(void) // 通過(guò)串口發(fā)送模擬量數(shù)據(jù)
{
// 組包，第一幀
UART1SendBuff[0] = 0XAA;
UART1SendBuff[1] = 0XBB;
UART1SendBuff[2] = 0X01;
UART1SendBuff[6] = 0XCC;
UART1SendBuff[7] = 0XDD;
UART1SendBuff[3] = 0x10;
UART1SendBuff[4] = (AnalogChannel[0].AveVal >> 8);
UART1SendBuff[5] = (u8)AnalogChannel[0].AveVal;
// 發(fā)送第一幀數(shù)據(jù)
USART3_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
//---------------------------------------------------------
// 組包，第二幀
UART1SendBuff[3] = 0x20;
UART1SendBuff[4] = (AnalogChannel[1].AveVal >> 8);
UART1SendBuff[5] = (u8)AnalogChannel[1].AveVal;
// 發(fā)送第二幀數(shù)據(jù)
USART3_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
/*
//---------------------------------------------------------
// 組包，第三幀
UART1SendBuff[3] = 0x30;
UART1SendBuff[4] = (AnalogChannel[2].AveVal >> 8);
UART1SendBuff[5] = (u8)AnalogChannel[2].AveVal;
// 發(fā)送第三幀數(shù)據(jù)
USART3_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
//---------------------------------------------------------
// 組包，第四幀
UART1SendBuff[1] = 0x40;
UART1SendBuff[2] = (AnalogChannel[3].AveVal >> 8);
UART1SendBuff[3] = (u8)AnalogChannel[3].AveVal;
// 發(fā)送第四幀數(shù)據(jù)
USART_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
//---------------------------------------------------------
// 組包，第五幀
UART1SendBuff[1] = 0x50;
UART1SendBuff[2] = (AnalogChannel[4].AveVal >> 8);
UART1SendBuff[3] = (u8)AnalogChannel[4].AveVal;
// 發(fā)送第五幀數(shù)據(jù)
USART_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
//---------------------------------------------------------
// 組包，第六幀
UART1SendBuff[1] = 0x60;
UART1SendBuff[2] = (AnalogChannel[5].AveVal >> 8);
UART1SendBuff[3] = (u8)AnalogChannel[5].AveVal;
// 發(fā)送第六幀數(shù)據(jù)
USART_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
//---------------------------------------------------------
// 組包，第七幀
UART1SendBuff[1] = 0x70;
UART1SendBuff[2] = (AnalogChannel[6].AveVal >> 8);
UART1SendBuff[3] = (u8)AnalogChannel[6].AveVal;
// 發(fā)送第七幀數(shù)據(jù)
USART_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
//---------------------------------------------------------
// 組包，第八幀
UART1SendBuff[1] = 0x80;
UART1SendBuff[2] = (AnalogChannel[7].AveVal >> 8);
UART1SendBuff[3] = (u8)AnalogChannel[7].AveVal;
// 發(fā)送第八幀數(shù)據(jù)
USART_SendUnfixedData(UART1SendBuff, 8);
Delay_m(300); // 延時(shí)，和計(jì)算機(jī)軟件時(shí)間匹配
*/
}
上面這個(gè)是壓縮包里面的user_usart.c文件:
STM32加232串口發(fā)多串口.7z
(195.06 KB, 下載次數(shù): 83)
2019-7-20 03:23 上傳
點(diǎn)擊文件名下載附件
下載積分: 黑幣 -5
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