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Stm32_标准库_15_串口蓝牙模块_手机与蓝牙模块通信_BUG修复

news 2025/7/28 6:59:38

代码：

#include "stm32f10x.h"    // Device header
#include "Delay.h"
#include "OLED.h"
#include "Serial.h"
#include "Time.h"
#include "Function.h"
#include <stdio.h>
#include <stdlib.h>char *News = NULL;//存数据
unsigned char time[] = {22, 59, 30};
unsigned int date[] = {2023, 12, 31};
char month[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};void TIM2_IRQHandler(void){//定时器2//主要运用时间更新if(TIM_GetITStatus(TIM2, TIM_IT_Update) == SET){TIM_ClearITPendingBit(TIM2, TIM_IT_Update);//清除标志位Time_Control(time, month, date);}}int main(void){OLED_Init();//初始化OLEDTime_Init();//开启计时器Serial_Init();//开启串口while(1){//uint16_t count = 0;if(Serial_GetRxFlag() == 1){Delay_ms(1000);//等待数据传输完News = Serial_returnNews();//count ++;//OLED_ShowNum(2,10, count, 4);OLED_ShowString(3, 1, News);if(Function_DateCheck(Serial_GetRFlagTime(), Serial_GetFlagDate()) == 0){OLED_ShowString(4, 1, "ERROR");}else{OLED_ShowString(4, 1, "RIGHT");}Serial_RESETI();//I至0free(News);//释放空间必须释放否者发生地址紊乱，直接卡机}Time_Show(time);Time_Show_Date(date);}}

输入一次数据主函数中的if循环理应执行一次，但是却执行了两次

原因是在刚进入if循环的时候虽然标志位被制零了但是，由于数据没有传输完所以后续还会把标志位制一

修改代码：

#include "stm32f10x.h"    // Device header
#include "Delay.h"
#include "OLED.h"
#include "Serial.h"
#include "Time.h"
#include "Function.h"
#include <stdio.h>
#include <stdlib.h>char *News = NULL;//存数据
unsigned char time[] = {22, 59, 30};
unsigned int date[] = {2023, 12, 31};
char month[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};void TIM2_IRQHandler(void){//定时器2//主要运用时间更新if(TIM_GetITStatus(TIM2, TIM_IT_Update) == SET){TIM_ClearITPendingBit(TIM2, TIM_IT_Update);//清除标志位Time_Control(time, month, date);}}int main(void){OLED_Init();//初始化OLEDTime_Init();//开启计时器Serial_Init();//开启串口while(1){//uint16_t count = 0;if(Serial_GetRxFlag() == 1){Delay_ms(1000);//等待数据传输完News = Serial_returnNews();//count ++;//OLED_ShowNum(2,10, count, 4);OLED_ShowString(3, 1, News);if(Function_DateCheck(Serial_GetRFlagTime(), Serial_GetFlagDate()) == 0){OLED_ShowString(4, 1, "ERROR");}else{OLED_ShowString(4, 1, "RIGHT");}Serial_RESETI();//I至0Serial_GetRxFlag();//制零否者if循环将会被执行两次free(News);//释放空间必须释放否者发生地址紊乱，直接卡机}Time_Show(time);Time_Show_Date(date);}}

其余代码：

#include "stm32f10x.h"                  // Device header
#include <stdio.h>
#include <stdarg.h>
#include "Delay.h"
#include <stdlib.h>
#include "OLED.h"uint8_t Serial_RxData;//存数据
uint8_t Serial_RxFlag;//标志位
GPIO_InitTypeDef GPIO_InitStructu;//GPIO
USART_InitTypeDef USART_InitStructure;//串口
NVIC_InitTypeDef NVIC_InitStructur;//中断
char news[100] = "";//存数据
uint8_t I = 0;
uint8_t flagDate = 0;//标志是否传入日期数据
uint8_t flagTime = 0;//标志是否传入时间数据//uint16_t cnt = 0;void Serial_Init(void)
{RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);GPIO_InitStructu.GPIO_Mode = GPIO_Mode_AF_PP;GPIO_InitStructu.GPIO_Pin = GPIO_Pin_9;GPIO_InitStructu.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOA, &GPIO_InitStructu);GPIO_InitStructu.GPIO_Mode = GPIO_Mode_IPU;GPIO_InitStructu.GPIO_Pin = GPIO_Pin_10;GPIO_InitStructu.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOA, &GPIO_InitStructu);USART_InitStructure.USART_BaudRate = 9600;USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;USART_InitStructure.USART_Parity = USART_Parity_No;USART_InitStructure.USART_StopBits = USART_StopBits_1;USART_InitStructure.USART_WordLength = USART_WordLength_8b;USART_Init(USART1, &USART_InitStructure);USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//通道NVIC_InitStructur.NVIC_IRQChannel = USART1_IRQn;//中断通道NVIC_InitStructur.NVIC_IRQChannelCmd = ENABLE;NVIC_InitStructur.NVIC_IRQChannelPreemptionPriority = 3;NVIC_InitStructur.NVIC_IRQChannelSubPriority = 1;NVIC_Init(&NVIC_InitStructur);USART_Cmd(USART1, ENABLE);
}uint8_t Serial_GetRxFlag(void)//读取标志位后自动青除
{if (Serial_RxFlag == 1){Serial_RxFlag = 0;return 1;}return 0;
}uint8_t Serial_GetFlagDate(void)//读取标志位后自动青除
{if (flagDate == 1){flagDate = 0;return 1;}return 0;
}uint8_t Serial_GetRFlagTime(void)//读取标志位后自动青除
{if (flagTime == 1){flagTime = 0;return 1;}return 0;
}void Serial_GetRxFlag_SET(void){Serial_RxFlag = 1;
}char * Serial_returnNews(void){//返还一个数组char * array;//int j = I;uint8_t i = 0;array = (char *) malloc(sizeof(char) * 100);while(i < I){if(news[i] == '/') flagDate = 1;if(news[i] == ':') flagTime = 1;array[i] = news[i];i ++;}// OLED_ShowNum(2,1,j,3);//OLED_ShowNum(2, 6, i, 3);//cnt ++;//OLED_ShowNum(4, 1, cnt, 3);return array;
}void Serial_RESETI(void){//初始化II = 0;
}uint8_t Serial_GetI(void){//返回Ireturn I;
}void USART1_IRQHandler(void)//中断函数
{if (USART_GetITStatus(USART1, USART_IT_RXNE) == SET){news[I] = USART_ReceiveData(USART1);//读数据Serial_RxFlag = 1;//至标志位为有数据I ++;USART_ClearITPendingBit(USART1, USART_IT_RXNE);}
}

#ifndef __SERIAL_H
#define __SERIAL_H
#include "stm32f10x.h"  
#include <stdio.h>void Serial_Init(void);
uint8_t Serial_GetRxFlag(void);
uint8_t Serial_GetRxData(void);
void Serial_GetRxFlag_SET(void);
char * Serial_returnNews(void);
void Serial_RESETI(void);
uint8_t Serial_GetI(void);
uint8_t Serial_GetRFlagTime(void);
uint8_t Serial_GetFlagDate(void);#endif