通用bootloader

用AT32F407 制作RT-THREAD 的bootloader程序

发布于 2022-02-11 00:49:47 浏览：1242 订阅该版

小小李sunny 2022-02-11

这家伙很懒，什么也没写！

4 个回答

Assert 2022-02-12

这家伙很懒，什么也没写！

直接改过来问题不大 ，以下供参考:

//BOOT跳转APP
void boot_jump_to_app(u32_t application_addr)
{
    typedef void (*app_func_t)(void);
    u32_t app_addr = application_addr;
    u32_t stk_addr = *((volatile u32_t*) app_addr);
    app_func_t app_func = (app_func_t) (*((volatile u32_t*) (app_addr + 4)));
    if ((((u32_t) app_func & 0xff000000) != 0x08000000) || ((stk_addr & 0x2ff00000) != 0x20000000))
    {
        printf_error("no legitimate application!");
        return;
    }
    printf_info("jump to application running!");
    delay_ms(200);

/* 恢复运行环境到初始状态 */
    __disable_irq();
    SysTick->CTRL = 0;
    SysTick->LOAD = 0;
    SysTick->VAL = 0;
    __set_CONTROL(0);

/******** just for at32 ********/
    RCC->APB1RST = 0xFFFFFFFF;
    RCC->APB2RST = 0xFFFFFFFF;
    RCC->APB1RST = 0x00000000;
    RCC->APB2RST = 0x00000000;
    /******** just for at32 ********/

__set_MSP(stk_addr);  //set msp and jump
    app_func();  //jump to application running
    printf_error("bootloader jump to application failed!"); //if success,never go here!
}