STM32与Proteus的串口仿真详细教程与源程序 -

#include "stm32f10x.h"
#include "stdio.h"
//#include "led.h"
#include "delay.h"
#include "lcd1602.h"
uint8_t USART_RXBUF[5];
extern uint8_t RXOVER;
/* Private function prototypes -----------------------------------------------*/
void NVIC_Configuration(void);
//void Delay_Ms(uint32_t nTime);
void USART_Config(void);
//void USART_SendString(int8_t *str);
void USART_SendString(unsigned char *buf);
int main(void)
{
uint8_t i;
RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
//SysTick_Init();
SysTick_Config(SystemCoreClock/100000);
GPIO_Configuration();
LCD1602_Init();
LCD1602_Show_Str(0,0,"Receive:");
USART_Config();
//USART_SendString(Tx_Buf);//发送字符串
USART_SendString("Welcome to HBEU\r\n");//发送字符串
while(1)
{
if(RXOVER == 1){
LCD1602_Show_Str(0,2,USART_RXBUF);
for(i=0;i<5;i++){
USART_RXBUF[i] =' '; //清空接收区
}
RXOVER = 0;
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);/////////////////////////////////////////////////////////////
}
/*if(USART_GetFlagStatus(USART1,USART_IT_RXNE)==SET)
{
USART_SendData(USART1,USART_ReceiveData(USART1));
delay_ms(1000);
}*/
}
}
/*void USART_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA,ENABLE);
//RCC_APB1PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
//NVIC_Configuration();
//配置USART2 TX引脚工作模式
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);
//配置USART2 RX引脚工作模式
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//串口2工作模式配置
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
//USART_ITConfig(USART2,USART_IT_RXNE,ENABLE);
USART_Cmd(USART1, ENABLE);
}*/
void USART_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
// 打开串口GPIO的时钟
//DEBUG_USART_GPIO_APBxClkCmd(DEBUG_USART_GPIO_CLK, ENABLE);
// 打开串口外设的时钟
//DEBUG_USART_APBxClkCmd(DEBUG_USART_CLK, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);
NVIC_Configuration();
// 将USART Tx的GPIO配置为推挽复用模式
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);
// 将USART Rx的GPIO配置为浮空输入模式
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// 配置串口的工作参数
// 配置波特率
USART_InitStructure.USART_BaudRate = 9600;
// 配置针数据字长
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
// 配置停止位
USART_InitStructure.USART_StopBits = USART_StopBits_1;
// 配置校验位
USART_InitStructure.USART_Parity = USART_Parity_No ;
// 配置硬件流控制
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
// 配置工作模式，收发一起
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
// 完成串口的初始化配置
USART_Init(USART1, &USART_InitStructure);
// 使能串口
USART_ITConfig(USART1,USART_IT_RXNE,ENABLE);
USART_Cmd(USART1, ENABLE);
}
/**
* @说明 USART2字符串发送函数
* @参数 str: 指向字符串的指针
* @返回值 None
*/
/*void USART_SendString(int8_t *str)
{
uint8_t index = 0;
do
{
USART_SendData(USART1,str[index]);
while(USART_GetFlagStatus(USART1,USART_FLAG_TXE) == RESET);
index++;
}
while(str[index] != 0); //检查字符串结束标志
}*/
void USART_SendString(unsigned char *buf)
{
while (*buf != '\0')
{
while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
USART_SendData(USART1, *buf++);
}
}
/**
* @说明配置中断向量控制器
* @参数 None
* @返回值 None
*/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
/* Enable the RTC Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}

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