刚开始学编程，菜鸟一个，大二期间在学校，用stm32f1系列芯片自己焊了一个板子通过esp8266做了简单的主从机接受信息的小项目。以前也没有接触过esp8266，在网上查找资源以及自己琢磨了一阵，做了一个简陋的收发信息的主从机项目。自己也做了好久，走了挺多错路，在这里分享一下自己的经验和心得，哪里做的或者理解不对，还请大家提出以及不要见怪。废话不多说，直接看代码。
首先是wifi.h，包含了串口和DHT11的头文件，数据的发送或接受是通过协议的方式进行发送或接受
#ifndef __wifi_H#define __wifi_H#include "stm32f10x.h"#include "string.h"#include "bsp_led.h"#include "stdbool.h"#include "bsp_usart.h"#include "SYSTICK.h"#include "DHT11.h"#define open_cpu 0xAF#define cpu_openstatse 0xAE//--指令长度#define command_length 5//--指令头起始位置#define cmdhead_startposit 0//--指令头长度#define cmdheader_length 2//--主箱地址长度#define mainbox_addresslength 2 //--主箱地址起始位置#define mainbox_startposit 2 #define MAX_RCV_LEN 10//从机控制指令#define slavecmd_open 0x01 #define slavecmd_close 0x00extern u32 UART1_read_count;//接收数据的个数extern u8 UART1_rcv_buf[MAX_RCV_LEN] ;void USART1_Clear_Buf(void);void Esp8266_Server_Init(void);void ESP8266_Client_Init();bool USRT_Send_ATCmd3(unsigned char *cmd,unsigned char *result);void ESP8266_UnvarnishSend();void USART1_Send_Len_Str(u8 *str, u8 len);void ESP8266_SendString(u32 ulStrLength,ENUM_ID_NO_TypeDef ucId);void TCP_Client_SendString(u32 ulStrLength,ENUM_ID_NO_TypeDef ucId);void TCP_Client_Instruction(unsigned char addr,unsigned char zcmd);void ESP8266_UnvarnishSend();#endif后面是wifi.c，里面是一些esp8266的初始化和配置等
#include "wifi.h"u32 UART1_read_count = 0;//接收数据的个数u8 UART1_rcv_buf[MAX_RCV_LEN] = {0};// 设置单链接// 返回 okuc8 *SetCIPMUX = "AT CIPMUX=0\r\n";// 设置透传模式// 返回 okuc8 *SetCIPMODE = "AT CIPMODE=1\r\n";// 设置STATION模式// 返回 okuc8 *SetCWMODE = "AT CWMODE=1\r\n";//加入主机热点//返回 okuc8 *AddCWJAP = "AT CWJAP=\"ESP8266\",\"0123456789\"\r\n";// 设置TCP连接参数// 返回 okuc8 *SetNETP = "AT CIPSTART=\"TCP\",\"192.168.4.1\",8888\r\n";bool USRT_Send_ATCmd(unsigned char *cmd,unsigned char *result){unsigned char i = 0; unsigned char ret = 0; while(1) { USART1_Clear_Buf(); USART1_Send_Len_Str(cmd,strlen(cmd)); delay_ms(100); if(NULL != strstr(UART1_rcv_buf,result)) {// LED_1(ON); ret = SUCCESS; break; } else if(i >=10) { ret = ERROR; break; }} return ret;}bool USRT_Send_ATCmd2(unsigned char *result) { unsigned char i = 0; unsigned char ret = 0; while(1) { USART1_Clear_Buf(); delay_ms(100); if(NULL != strstr(UART1_rcv_buf,result)) {// LED_2(ON); ret = SUCCESS; break; } else if(i >=10) { ret = ERROR; break; } } return ret; }bool USRT_Send_ATCmd3(unsigned char *cmd,unsigned char *result){ unsigned char i = 0; unsigned char ret = 0; while(1) { USART1_Clear_Buf();// ESP8266_Usart("%s",cmd); USART1_Send_Len_Str(cmd,strlen(cmd)); delay_ms(20000); if(NULL != strstr(UART1_rcv_buf,result)) { ret = SUCCESS; break; } else if(i >=10) { ret = ERROR; break; } } return ret;} void TCP_Client_Instruction(unsigned char addr,unsigned char zcmd) { u8 i =0; u8 sencmd_temp[8] = {0}; u8 sencmd_Sum = 0; sencmd_temp[0] = open_cpu; //数据头 sencmd_temp[1] = 8; // 数据长度 sencmd_temp[2] = addr>>8; sencmd_temp[3] = addr; sencmd_temp[4] = zcmd; //控制指令 sencmd_temp[5] = 1; //确认码 sencmd_temp[6] = 1; //校验码 for(i=0;i<8;i ) sencmd_Sum = sencmd_temp[i]; sencmd_temp[7] = sencmd_Sum; USART1_Send_Len_Str(sencmd_temp,8); }void TCP_Client_SendString(u32 ulStrLength,ENUM_ID_NO_TypeDef ucId) { unsigned char cStr[100]; if(ucId < 5) sprintf ( cStr, "AT CIPSEND=%d,%d\r\n", ucId, ulStrLength 2 ); //多连接模式 else sprintf ( cStr, "AT CIPSEND=%d\r\n",ulStrLength 2 ); //单连接模式 USRT_Send_ATCmd3(cStr,">"); TCP_Client_Instruction(curtain_addr,slavecmd_open); USRT_Send_ATCmd2("SEND OK"); } void USART1_Clear_Buf(void){ memset(UART1_rcv_buf, 0, strlen(UART1_rcv_buf)); UART1_read_count = 0;}void Esp8266_Server_Init(){ //等待启动成功 发送数据 收到数据 USRT_Send_ATCmd2("Ready"); //查询 USRT_Send_ATCmd("AT\r\n","OK"); //就绪 USRT_Send_ATCmd("AT CIPMUX=1\r\n","OK"); //设置多链接模式 USRT_Send_ATCmd("AT CWMODE=3\r\n","OK") ; //设置STATION模式 (AP STATION)模式 首次设定后面就不用设置了 USRT_Send_ATCmd("AT CIPSERVER=1,8888\r\n","OK");//开启TCP主机模式 } /*配置成TCP客户端模式*/ void ESP8266_Client_Init() { USRT_Send_ATCmd2("Ready"); //查询 USRT_Send_ATCmd("AT\r\n","OK"); //就绪 USRT_Send_ATCmd("AT CWMODE=1\r\n","OK") ; //设置STATION模式 首次设定后面就不用设置了 USRT_Send_ATCmd("AT RST\r\n","OK"); //重启模块使STA模式生效； USRT_Send_ATCmd("AT CIPMUX=0\r\n","OK") ; //设置单链接 USRT_Send_ATCmd3((char*)AddCWJAP,"OK"); ////加入主机热点 USRT_Send_ATCmd3((char*)SetNETP,"OK"); //设置TCP连接参数 } void USART1_Send_Len_Str(u8 *str, u8 len){ u8 i; for(i=0; i<len; i ) Usart_SendByte(USART1,*str );}/*透传发送模式(只限从机给主机发数据)*/ void ESP8266_UnvarnishSend() { // unsigned char *str; unsigned char *sendtemp = "AT CIPSEND\r\n"; USRT_Send_ATCmd((char*)SetCIPMODE,"OK"); //设置透传模式 USRT_Send_ATCmd3(sendtemp,">");// LED4_ON; TCP_Client_Instruction(curtain_addr,slavecmd_open); }/*普通发送传感器数据函数*/void ESP8266_SendString(u32 ulStrLength,ENUM_ID_NO_TypeDef ucId){ unsigned char cStr[100]; if(ucId < 5) sprintf ( cStr, "AT CIPSEND=%d,%d\r\n", ucId, ulStrLength 2 ); //多连接模式 else sprintf ( cStr, "AT CIPSEND=%d\r\n",ulStrLength 2 ); //单连接模式 USRT_Send_ATCmd3(cStr,">"); if(count_10ms != last_count_10ms) { if(DHT11_Read_TempAndHumidity()==SUCCESS) { sprintf(cStr,"\r\n读取DHT11成功!\r\n\r\n湿度为%d.%d ％RH ，温度为 %d.%d℃ \r\n", humidity_int, humidity_deci, temperature_int, temperature_deci ); } else { sprintf ( cStr, "Read DHT11 ERROR!\r\n" ); } printf ( "%s", cStr ); USRT_Send_ATCmd2("SEND OK"); last_count_10ms = count_10ms; }}在wifi里把已经把初始的本地IP地址192.168.4.1以及本地端口号8888设定好了，这里的协议类型为TCP Server利用串口助手进行输入以及连接即可进行发送相应的指令协议
下面DHT11.h，对DHT11的i/o口等进行宏定义
#ifndef __DHT11_H__#define __DHT11_H__#include "stm32f10x.h"#include "SYSTICK.h"#include "bsp_usart1.h"#include "bsp_led.h"#include "stdio.h"#include "GeneralTim.h"extern unsigned char humidity_int; //湿度的整数部分extern unsigned char humidity_deci; //湿度的小数部分extern unsigned char temperature_int; //温度的整数部分extern unsigned char temperature_deci; //温度的小数部分#define DHT11_GPIO_APBxClkCmd RCC_APB2PeriphClockCmd#define DHT11_GPIO_CLK RCC_APB2Periph_GPIOD#define DHT11_GPIO_PROT GPIOA#define DHT11_GPIO_PIN GPIO_Pin_11#define DHT11_L GPIO_ResetBits(DHT11_GPIO_PROT,DHT11_GPIO_PIN)#define DHT11_H GPIO_SetBits(DHT11_GPIO_PROT,DHT11_GPIO_PIN)#define DHT11_IN GPIO_ReadInputDataBit(DHT11_GPIO_PROT,DHT11_GPIO_PIN)//读取单个端口的数值#define open_cpu 0xAFvoid DHT11_State(void);void DHT11_GPIO_Confing(void); unsigned char Read_Byte(void);void DHT11_Init(void);unsigned char DHT11_Read_TempAndHumidity(void);void DHT11_Show(void);#endif接下来是DHT11.c
#include "DHT11.h"/* DHT11运行机制 ①拉低18ms低电平 ②发送信号结束后延时等待20-40us ③DHT11发送80us低电平响应信号 ④DHT11在把总线拉高80us ⑤接收数据 ⑥主机总线拉高 *//* 配置DHT11用到的IO口 输出模式为推挽输出*/unsigned char humidity_int; //湿度的整数部分unsigned char humidity_deci; //湿度的小数部分unsigned char temperature_int; //温度的整数部分unsigned char temperature_deci; //温度的小数部分void DHT11_Init(){ DHT11_GPIO_Confing(); DHT11_H; }void DHT11_GPIO_Confing(void) { GPIO_InitTypeDef GPIO_InitStructure; DHT11_GPIO_APBxClkCmd(DHT11_GPIO_CLK,ENABLE); GPIO_InitStructure.GPIO_Pin = DHT11_GPIO_PIN; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(DHT11_GPIO_PROT,&GPIO_InitStructure);}/*使DHT11的引脚变为上拉输入*/ static void DHT11_GPIO_Mode_IPU(void){ GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_Pin = DHT11_GPIO_PIN; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(DHT11_GPIO_PROT,&GPIO_InitStructure);}static void DHT11_GPIO_Mode_Out_PP(void){ GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.GPIO_Pin = DHT11_GPIO_PIN; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(DHT11_GPIO_PROT,&GPIO_InitStructure);}void DHT11_State(void){ DHT11_GPIO_Mode_Out_PP(); //设置为输出模式 DHT11_L; delay_ms(18); DHT11_H; delay_us(30); DHT11_GPIO_Mode_IPU();}//从DHT11读取一个字节，MSB先行(最高有效位 二进制中代表最高值的bit)unsigned char Read_Byte(void){ unsigned char i,temp=0; for(i=0;i<8;i ) { while( DHT11_IN==Bit_RESET); delay_us(40); if( DHT11_IN==Bit_SET) { while( DHT11_IN==Bit_SET); temp|=(uint8_t)(0x01<<(7-i)); //位或赋值 把把第7-i位置1 } else { temp&=(uint8_t)~(0x01<<(7-i)); //把第7-i位置0 } } return temp;}unsigned char DHT11_Read_TempAndHumidity(){ unsigned char rec_temp[5]; unsigned char i; DHT11_State(); //开始信号 if(DHT11_IN==Bit_RESET) //判断DHT11响应信号 { while(DHT11_IN==Bit_RESET);//轮询80us低电平信号结束 while(DHT11_IN==Bit_SET); //轮询80us高电平信号结束 for(i=0;i<5;i ) { rec_temp[i]= Read_Byte(); } DHT11_GPIO_Mode_Out_PP(); //读取结束 引脚改为输出模式 DHT11_H; //主机拉高 if((rec_temp[0] rec_temp[1] rec_temp[2] rec_temp[3])==rec_temp[4])//校验 { humidity_int = rec_temp[0]; humidity_deci = rec_temp[1]; temperature_int = rec_temp[2]; temperature_deci = rec_temp[3]; return SUCCESS; } else { return ERROR; } } else { return ERROR; } }void DHT11_Show(){ if(count_100ms != last_count_100ms) {// ESP8266_UnvarnishSend(); if(DHT11_Read_TempAndHumidity()==SUCCESS) { u8 sencmd_temp[5] = {0}; sencmd_temp[0] = open_cpu; //数据头 sencmd_temp[1] = humidity_int; // 湿度整数 sencmd_temp[2] = humidity_deci; // 湿度小数 sencmd_temp[3] = temperature_int; // 温度整数 sencmd_temp[4] = temperature_deci; //温度小数 // sencmd_temp[5] = 1; //确认码// sencmd_temp[6] = 1; //校验码 // for(i=0;i<8;i )// sencmd_Sum = sencmd_temp[i];// sencmd_temp[7] = sencmd_Sum; USART1_Send_Len_Str(sencmd_temp,8); // Usart_SendArray(USART1, sencmd_temp,5); printf("\r\n读取DHT11成功! \r\n\r\n湿度为%d.%d ％RH ，温度为 %d.%d℃ \r\n",humidity_int,humidity_deci,temperature_int,temperature_deci);}else { printf("Read DHT11 ERROR!\r\n"); }// USRT_Send_ATCmd(" ","OK");//进入透传模式// USRT_Send_ATCmd("AT\r\n","OK"); last_count_100ms = count_100ms; } } DHT11文件中将模块以及相应的i/o以及初始化都定义好了，并且利用printf（）函数将温湿度进行串口输出，可以利用串口观看数据更加直观
接下来是串口
#ifndef __BSP_USART_H#define __BSP_USART_H#include "stm32f10x.h"#include <stdio.h>#include "bsp_led.h"#include "wifi.h"#include "key.h"#define DEBUG_USART1 1#define DEBUG_USART2 0#if DEBUG_USART1// 串口1-USART1#define DEBUG_USARTx USART1#define DEBUG_USART_CLK RCC_APB2Periph_USART1#define DEBUG_USART_APBxClkCmd RCC_APB2PeriphClockCmd#define DEBUG_USART_BAUDRATE 115200// USART GPIO 引脚宏定义#define DEBUG_USART_GPIO_CLK (RCC_APB2Periph_GPIOA)#define DEBUG_USART_GPIO_APBxClkCmd RCC_APB2PeriphClockCmd#define DEBUG_USART_TX_GPIO_PORT GPIOA #define DEBUG_USART_TX_GPIO_PIN GPIO_Pin_9#define DEBUG_USART_RX_GPIO_PORT GPIOA#define DEBUG_USART_RX_GPIO_PIN GPIO_Pin_10#define DEBUG_USART_IRQ USART1_IRQn#define DEBUG_USART_IRQHandler USART1_IRQHandler#elif DEBUG_USART2//串口2-USART2#define DEBUG_USARTx USART2#define DEBUG_USART_CLK RCC_APB1Periph_USART2#define DEBUG_USART_APBxClkCmd RCC_APB1PeriphClockCmd#define DEBUG_USART_BAUDRATE 115200// USART GPIO 引脚宏定义#define DEBUG_USART_GPIO_CLK (RCC_APB2Periph_GPIOA)#define DEBUG_USART_GPIO_APBxClkCmd RCC_APB2PeriphClockCmd#define DEBUG_USART_TX_GPIO_PORT GPIOA #define DEBUG_USART_TX_GPIO_PIN GPIO_Pin_2#define DEBUG_USART_RX_GPIO_PORT GPIOA#define DEBUG_USART_RX_GPIO_PIN GPIO_Pin_3#define DEBUG_USART_IRQ USART2_IRQn#define DEBUG_USART_IRQHandler USART2_IRQHandler#endifextern uint8_t TxBuffer1[10];extern u8 RxBuffer1[6];extern u8 abc[6];extern uint8_t rec_flag;extern uint8_t rec_flag1;void USART_Config(void);void Usart_SendByte(USART_TypeDef* pUSARTx, uint8_t data);void Usart_SendHalfWord(USART_TypeDef* pUSARTx, uint16_t data);void Usart_SendArray(USART_TypeDef* pUSARTx, uint8_t *array,uint8_t num);void Usart_SendStr(USART_TypeDef* pUSARTx, uint8_t *str);void USART1_IRQHandler(void);void ESP8266_IntGenData(unsigned char rec_tem);void Buffercls(unsigned char *pBuffer, unsigned char vlaue, unsigned int BufferLength);void Buffercpy(unsigned char *dBuffer, unsigned char *sBuffer, unsigned int BufferLength);#endif 在串口的定义上是在观看学习资料时向老师教学时用的宏定义，很喜欢这种宏定义方式，在这里我只定义了两个串口，在#define DEBUG_USART1 1 里将后面的数值进行改变就可以打开相应的串口。1打开0关闭。
bsp_usart.c
#include "bsp_usart.h"u8 Res;uint8_t humingjin[6]={00,01,02,03,04,05};uint8_t TxBuffer1[10] ; //发送数据缓存区u8 RxBuffer1[6] = {0}; //接收数据缓存区//u8 abc[6] = {0};uint8_t rec_flag = 0;uint8_t rec_flag1 = 0;uint8_t ucTemp;u8 banduanled[2]={'A','A'};u8 banduanled1[2] ={'B','B'};static void NVIC_Configuration(void){ NVIC_InitTypeDef NVIC_InitStructure; /* 嵌套向量中断控制器组选择 */ NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); /* 配置USART为中断源 */ NVIC_InitStructure.NVIC_IRQChannel = DEBUG_USART_IRQ; /* 抢断优先级*/ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; /* 子优先级 */ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; /* 使能中断 */ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; /* 初始化配置NVIC */ NVIC_Init(&NVIC_InitStructure);}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);// 将USART Tx的GPIO配置为推挽复用模式 GPIO_InitStructure.GPIO_Pin = DEBUG_USART_TX_GPIO_PIN; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_Init(DEBUG_USART_TX_GPIO_PORT, &GPIO_InitStructure);// 将USART Rx的GPIO配置为浮空输入模式 GPIO_InitStructure.GPIO_Pin = DEBUG_USART_RX_GPIO_PIN; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; GPIO_Init(DEBUG_USART_RX_GPIO_PORT, &GPIO_InitStructure);// 配置串口的工作参数 // 配置波特率 USART_InitStructure.USART_BaudRate = DEBUG_USART_BAUDRATE; // 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(DEBUG_USARTx, &USART_InitStructure);// 串口中断优先级配置 NVIC_Configuration();// 使能串口接收中断 USART_ITConfig(DEBUG_USARTx, USART_IT_RXNE, ENABLE); // 使能串口 USART_Cmd(DEBUG_USARTx, ENABLE); }/* 发送一个字节 */void Usart_SendByte(USART_TypeDef* pUSARTx, uint8_t data){ USART_SendData(pUSARTx, data); while( USART_GetFlagStatus(pUSARTx, USART_FLAG_TXE) == RESET );}/* 发送两个字节的数据 */void Usart_SendHalfWord(USART_TypeDef* pUSARTx, uint16_t data){ uint8_t temp_h,temp_l;// uint8_t rec_tem; temp_h = (data&0xff00) >> 8 ; temp_l = data&0xff;USART_SendData(pUSARTx, temp_h);//高8位； while( USART_GetFlagStatus(pUSARTx, USART_FLAG_TXE) == RESET );USART_SendData(pUSARTx, temp_l);//低8位； while( USART_GetFlagStatus(pUSARTx, USART_FLAG_TXE) == RESET );}/* 发送8位数据的数组 */void Usart_SendArray(USART_TypeDef* pUSARTx, uint8_t *array,uint8_t num){ uint8_t i; for( i=0; i<num; i ) { Usart_SendByte(pUSARTx, array[i]); } while( USART_GetFlagStatus(pUSARTx, USART_FLAG_TC) == RESET );}/* 发送字符串 */void Usart_SendStr(USART_TypeDef* pUSARTx, uint8_t *str){ uint8_t i=0; do { Usart_SendByte(pUSARTx, *(str i)); i ; }while(*(str i) != '\0'); while( USART_GetFlagStatus(pUSARTx, USART_FLAG_TC) == RESET );}/////重定向c库函数printf到串口，重定向后可使用printf函数int fputc(int ch, FILE *f){ /* 发送一个字节数据到串口 */ USART_SendData(DEBUG_USARTx, (uint8_t) ch);/* 等待发送完毕 */ while (USART_GetFlagStatus(DEBUG_USARTx, USART_FLAG_TXE) == RESET); return (ch);}///重定向c库函数scanf到串口，重写向后可使用scanf、getchar等函数int fgetc(FILE *f){ /* 等待串口输入数据 */ while (USART_GetFlagStatus(DEBUG_USARTx, USART_FLAG_RXNE) == RESET);return (int)USART_ReceiveData(DEBUG_USARTx);}bool USRT_Send(unsigned char *cmd,unsigned char *result) { unsigned char ret = 0; if(NULL != strstr(cmd,result)) ret = SUCCESS; else ret = ERROR; return ret;}void ESP8266_IntGenData(unsigned char rec_tem){ static unsigned char rec_count = 0;//--接收计数 static unsigned char start_rec = 0;//--贞开始 if(rec_tem == open_cpu||rec_tem == cpu_openstatse) { rec_count = 0; start_rec = 1; } if(start_rec == 1) { RxBuffer1[rec_count ] = rec_tem; if(rec_count == command_length) { start_rec = 0; rec_flag = 1; // Buffercpy(abc,RxBuffer1,6); LED3_TOGGLE; } } }void DEBUG_USART_IRQHandler(void) { unsigned char rec_tem = 0; //--接收缓存 if(USART_GetITStatus(DEBUG_USARTx, USART_IT_RXNE) != RESET) //判断读寄存器是否非空 接受中断 { rec_tem = USART_ReceiveData(DEBUG_USARTx); //将读寄存器的数据缓存到接收缓冲区里 UART1_rcv_buf[UART1_read_count ] = rec_tem; ESP8266_IntGenData(rec_tem); USART_ClearITPendingBit(DEBUG_USARTx,USART_IT_RXNE); }}//--以某个数清数组void Buffercls(unsigned char *pBuffer, unsigned char vlaue, unsigned int BufferLength){ while(BufferLength--) { *pBuffer = vlaue; pBuffer ; }}//--把一个数组的内容复制到另一个数组void Buffercpy(unsigned char *dBuffer, unsigned char *sBuffer, unsigned int BufferLength){ while(BufferLength--) { *dBuffer = *sBuffer; dBuffer ; sBuffer ; }} 数据的发送和结束都是利用串口，在串口中断函数里，有接收指令的函数，用ESP8266_IntGenData（）接收指令，我是用AF AE做指令头共8位数据，并且利用数据分析函数，用来解析接收到的数据。
最后则是主函数main
在主函数里放置的数据解析函数，用来解析接收到的数据，若接收完整则送到串口中。这份代码可以做主机也可以做从机，只要在主函数里将相应的函数初始化打开就可以了。在这里解析函数没有给出，是根据ESP8266_IntGenData（）里的最终的 rec_flag = 1这个标志来进行判断执行相应的功能。
#include "stm32f10x.h"#include "bsp_led.h"#include "bsp_usart.h"#include "wifi.h"#include "systick.h"#include "DHT11.h"#include "analysis_command.h"int main(void){ USART_Config(); KEY_GPIO_Config(); delay_Init(72); LED_Init();// ESP8266_Client_Init();// TCP_Client_SendString(6,Multiple_ID_2); Esp8266_Server_Init();DHT11_Init();DHT11_Show();while(1){ Analyze_instruction(RxBuffer1,6);}}这个小项目是我和同学一起捣鼓了近一个月的时间，有收获也有不足。
实现功能：
1，能通过esp8266进行控制单片机执行相应的功能，如点灯等
2，利用主机给从机发送数据，通过主机把DHT11监测的数据，将其发送给从机并将其用串口打印出来
缺点：
1，从机连接主机时候不稳定
2，在从机接收主机发送的温湿度数据时，数据发送完整，但是从机只能接收一段时间，一段时间后就死机了，不在接收数据。不知道什么原因，尚未解决
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