stm32和esp8266通信的代码

您好，以下是一段简单的STM32和ESP8266通信的代码示例：

#include "stm32f10x.h"

// ESP8266连接信息
#define WIFI_SSID "your_ssid"
#define WIFI_PASS "your_password"

// USART配置
#define USART1_RX_GPIO	GPIO_Pin_10
#define USART1_TX_GPIO	GPIO_Pin_9
#define USART1_GPIO_PORT	GPIOA
#define USART1_GPIO_CLK	RCC_APB2Periph_GPIOA
#define USART1_CLOCK	RCC_APB2Periph_USART1
#define USART1			USART1

void USART1_Init(void);
void USART_SendByte( USART_TypeDef *pUSARTx, uint8_t ch);
void USART_SendString( USART_TypeDef *pUSARTx, char *str);

int main(void) {
  char buf[50] = {0};
  USART1_Init();
  
  // 连接WiFi并打印IP地址
  sprintf(buf, "AT+CWJAP=\"%s\",\"%s\"\r\n", WIFI_SSID, WIFI_PASS);
  USART_SendString(USART1, buf);
  while(USART_ReceiveData(USART1) != 'O');
  while(USART_ReceiveData(USART1) != 'K');
  
  // 获取WiFi模块的IP地址
  USART_SendString(USART1, "AT+CIFSR\r\n");
  while(USART_ReceiveData(USART1) != ':');
  while(USART_ReceiveData(USART1) != '\n');
  while(USART_ReceiveData(USART1) != '\n');
  while(USART_ReceiveData(USART1) != '\r');
  while(USART_ReceiveData(USART1) != '\n');
  while(USART_ReceiveData(USART1) != ':');
  while(USART_ReceiveData(USART1) != '\n');
  char ip = USART_ReceiveData(USART1);
  
  // 发送数据到服务器
  sprintf(buf, "AT+CIPSTART=\"TCP\",\"%s\",80\r\n", "example.com");
  USART_SendString(USART1, buf);
  while(USART_ReceiveData(USART1) != 'O');
  while(USART_ReceiveData(USART1) != 'K');
  
  sprintf(buf, "GET / HTTP/1.1\r\nHost: example.com\r\n\r\n");
  USART_SendString(USART1, buf);
}

void USART1_Init(void) {
  GPIO_InitTypeDef GPIO_InitStructure;
  USART_InitTypeDef USART_InitStructure;

  RCC_APB2PeriphClockCmd(USART1_CLOCK | RCC_APB2Periph_AFIO, ENABLE);
  RCC_APB2PeriphClockCmd(USART1_GPIO_CLK, ENABLE);

  // 配置USART1的GPIO引脚
  GPIO_InitStructure.GPIO_Pin = USART1_TX_GPIO | USART1_RX_GPIO;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
  GPIO_Init(USART1_GPIO_PORT, &GPIO_InitStructure);

  // 配置USART1
  USART_InitStructure.USART_BaudRate = 115200;
  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_Tx | USART_Mode_Rx;
  USART_Init(USART1, &USART_InitStructure);

  // 使能USART1
  USART_Cmd(USART1, ENABLE);
}

void USART_SendByte(USART_TypeDef *pUSARTx, uint8_t ch) {
  USART_SendData(pUSARTx,ch);
  while (USART_GetFlagStatus(pUSARTx, USART_FLAG_TXE) == RESET);
}

void USART_SendString(USART_TypeDef *pUSARTx, char *str) {
  while(*str) {
    USART_SendByte(pUSARTx, *str++);
  }
}

需要注意的是，这仅仅是一个简单的示例。在实际项目中，您需要根据自己的需求和硬件和网络连接的特点进行适当的配置和调整。