写一个stm32连接esp8266，通过esp8266上传数据包的程序

好的，我可以帮你提供一个示例代码，请注意以下几点：

1. 首先需要确保你已经连接好了 STM32 和 ESP8266，且 STM32 的串口和 ESP8266 的串口相连。

2. 以下示例代码中，我使用了 STM32 的 HAL 库来操作串口，ESP8266 的 AT 指令来进行 WiFi 连接和数据包上传。

3. 请根据你的具体情况修改代码中的串口编号、WiFi SSID 和密码、上传的数据包等参数。

示例代码如下：

#include "stm32f1xx_hal.h"
#include <stdio.h>
#include <string.h>

UART_HandleTypeDef huart1;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART1_UART_Init(void);

void sendATCommand(char* command, char* response)
{
    char buffer[100] = {0};
    HAL_UART_Transmit(&huart1, (uint8_t*)command, strlen(command), 1000);
    HAL_UART_Receive(&huart1, (uint8_t*)buffer, strlen(response), 1000);
    if(strncmp(buffer, response, strlen(response)) != 0)
    {
        printf("Error: %s\n", buffer);
    }
}

int main(void)
{
    HAL_Init();
    SystemClock_Config();
    MX_GPIO_Init();
    MX_USART1_UART_Init();

    char ssid[] = "your_wifi_ssid";
    char password[] = "your_wifi_password";
    char data[] = "your_data_to_upload";

    sendATCommand("AT\r\n", "OK");

    sendATCommand("AT+CWMODE=1\r\n", "OK");

    char command[100];
    sprintf(command, "AT+CWJAP=\"%s\",\"%s\"\r\n", ssid, password);
    sendATCommand(command, "OK");

    sprintf(command, "AT+CIPSTART=\"TCP\",\"your_server_ip\",80\r\n");
    sendATCommand(command, "OK");

    sprintf(command, "AT+CIPSEND=%d\r\n", strlen(data));
    sendATCommand(command, ">");

    HAL_UART_Transmit(&huart1, (uint8_t*)data, strlen(data), 1000);
    HAL_Delay(1000);

    sendATCommand("AT+CIPCLOSE\r\n", "OK");

    while (1)
    {
    }
}

void SystemClock_Config(void)
{
    RCC_OscInitTypeDef RCC_OscInitStruct = {0};
    RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
    RCC_OscInitStruct.HSEState = RCC_HSE_ON;
    RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
    if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
    {
        Error_Handler();
    }

    RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
    RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
    {
        Error_Handler();
    }
}

static void MX_USART1_UART_Init(void)
{
    huart1.Instance = USART1;
    huart1.Init.BaudRate = 115200;
    huart1.Init.WordLength = UART_WORDLENGTH_8B;
    huart1.Init.StopBits = UART_STOPBITS_1;
    huart1.Init.Parity = UART_PARITY_NONE;
    huart1.Init.Mode = UART_MODE_TX_RX;
    huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    huart1.Init.OverSampling = UART_OVERSAMPLING_16;
    if (HAL_UART_Init(&huart1) != HAL_OK)
    {
        Error_Handler();
    }
}

static void MX_GPIO_Init(void)
{
    __HAL_RCC_GPIOC_CLK_ENABLE();
    GPIO_InitTypeDef GPIO_InitStruct = {0};
    GPIO_InitStruct.Pin = GPIO_PIN_13;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
}

void Error_Handler(void)
{
    __disable_irq();
    while (1)
    {
    }
}

希望这个示例代码对你有所帮助！