stm32 串口Bootloader程序代码

以下是一个基于STM32的串口Bootloader程序代码示例：

#include "stm32f10x.h"

#define BOOTLOADER_START_ADDRESS 0x08000000

void bootloader_jump(void)
{
    uint32_t jump_address = *(volatile uint32_t*)(BOOTLOADER_START_ADDRESS + 4);
    void (*bootloader)(void) = (void (*)(void))jump_address;
    bootloader();
}

void bootloader_receive(uint8_t* data, uint16_t length)
{
    static uint32_t address = BOOTLOADER_START_ADDRESS;

    for (uint16_t i = 0; i < length; i += 4)
    {
        uint32_t word = *(uint32_t*)(data + i);

        FLASH_Unlock();

        FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_PGERR | FLASH_FLAG_WRPRTERR);

        FLASH_ProgramWord(address, word);

        address += 4;

        FLASH_Lock();
    }
}

int main(void)
{
    // 初始化串口
    // ...

    // 等待命令
    while (1)
    {
        // 接收命令
        // ...

        if (command == BOOTLOADER_COMMAND_JUMP)
        {
            // 跳转到Bootloader
            bootloader_jump();
        }
        else if (command == BOOTLOADER_COMMAND_RECEIVE)
        {
            // 接收应用程序数据
            bootloader_receive(data, length);
        }
        else if (command == BOOTLOADER_COMMAND_ERASE)
        {
            // 擦除应用程序
            // ...
        }
        // ...
    }
}

注：这只是一个示例代码，具体实现需要根据具体的情况进行修改和优化。