stm32连接巴法云的AT代码编写

连接巴法云需要通过AT指令与WiFi模块通信，而STM32可以通过串口与WiFi模块进行通信，因此需要编写AT指令的发送代码。

以下是一个简单的示例代码，假设使用的是ESP8266 WiFi模块：

#include "stm32f10x.h"
#include <stdio.h>
#include <string.h>

#define WIFI_USART USART1

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

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1 | RCC_APB2Periph_GPIOA, ENABLE);

    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);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOA, &GPIO_InitStructure);

    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_Rx | USART_Mode_Tx;
    USART_Init(WIFI_USART, &USART_InitStructure);

    USART_Cmd(WIFI_USART, ENABLE);
}

void WIFI_Send_AT_Command(char* command)
{
    char response[1024];
    memset(response, 0, sizeof(response));

    USART_SendData(WIFI_USART, (uint16_t)'\r');
    USART_SendData(WIFI_USART, (uint16_t)'\n');
    USART_SendData(WIFI_USART, (uint16_t)'A');
    USART_SendData(WIFI_USART, (uint16_t)'T');
    USART_SendData(WIFI_USART, (uint16_t)'+');
    USART_SendData(WIFI_USART, (uint16_t)'+');

    for (int i = 0; i < strlen(command); i++) {
        USART_SendData(WIFI_USART, (uint16_t)command[i]);
    }

    USART_SendData(WIFI_USART, (uint16_t)'\r');
    USART_SendData(WIFI_USART, (uint16_t)'\n');

    while (1) {
        if (USART_GetFlagStatus(WIFI_USART, USART_FLAG_RXNE) == SET) {
            char ch = USART_ReceiveData(WIFI_USART);
            if (ch == '\n' && response[strlen(response) - 1] == '\r') {
                break;
            }
            response[strlen(response)] = ch;
        }
    }

    printf("%s\n", response);
}

int main(void)
{
    WIFI_USART_Configuration();

    WIFI_Send_AT_Command("AT+RST");

    return 0;
}

这段代码中，首先配置了串口1作为WiFi模块的通信口，并且定义了一个`WIFI_Send_AT_Command`函数用于发送AT指令并接收响应。在示例代码中，发送了一个重启指令`AT+RST`，并打印出了响应结果。

需要注意的是，不同的WiFi模块可能需要不同的AT指令进行连接，具体的指令需要根据实际情况进行调整。