5 stm32H743 从bootloader 跳转到APP程序后不能正常运行

发布于 2022-03-01 18:40:46 浏览：2859 订阅该版

STM32H743的开发板移植了一个bootloader可以跳转到 0x08020000地址，打印以下内容后就卡死了
![image.png](https://oss-club.rt-thread.org/uploads/20220301/e3e908cd6dd339c77659aaa721e61c96.png)

跳转代码
```c
/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2019-03-05     whj4674672   first version
 */

#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>

#define IAP_FLASH_SIZE 0X20000
/* defined the LED0 pin: PB1 */
#define LED0_PIN    GET_PIN(B, 1)

int main(void)
{
    int count = 1;
    /* set LED0 pin mode to output */	
    rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT);	
	
    while (count++)
    {
        rt_pin_write(LED0_PIN, PIN_HIGH);
        rt_thread_mdelay(500);
        rt_pin_write(LED0_PIN, PIN_LOW);
        rt_thread_mdelay(500);
    }
    return RT_EOK;
}

#include "stm32h7xx.h"
static int vtor_config(void)
{
    /* Vector Table Relocation in Internal QSPI_FLASH */
    SCB->VTOR = FLASH_BASE | IAP_FLASH_SIZE;
    return 0;
}
INIT_BOARD_EXPORT(vtor_config);

```