H750VB原子开发板，使用qboot软件包时有时候跳转卡死。

发布于 2023-03-01 11:39:27 浏览：643 订阅该版

首先我按照art-pi的例子进行qboot的移植，移植后跳转一直不怎么正常，检查过内存映射的数据读取是正常的，大多时候都不能正常跳转，偶尔会跳转成功。
~~然后我以为是中断的问题， 我将开中断的函数注释掉了， 然后app的rtthread初始化的时候应该会开这个中断，现在的话大多时候都是能够正常跳转的， 但是还是偶尔出现卡死的情况。~~（后来发现是错觉）
同样的步骤我在另一个工程里面，没有添加fal sfud qboot相关组件包， 直接main里面做跳转是100%成功的， 但是想着qboot这个方案比较完整，想直接拿过来用。
代码如下：

```c
void qbt_jump_to_app(void)
{
    typedef void (*app_func_t)(void);
    app_func_t app_func;
    struct rt_qspi_device *device = NULL;
    u32 stk_addr = 0;
    u32 reset_handler = 0;
    const u8 send[4] = {0x03, 0x00, 0x00, 0x00};
    u8 recv[8] = {0};
    
    device = (struct rt_qspi_device *)rt_device_find(QBOOT_QSPI_FLASH_DEVICE_NAME);

if(device == RT_NULL)
    {
        LOG_E("no found qspi flash.");
        return;
    }

rt_qspi_send_then_recv(device, send, sizeof(send), recv, sizeof(recv));

stk_addr = recv[0];
    stk_addr += ((u32)recv[1] << 8);
    stk_addr += ((u32)recv[2] << 16);
    stk_addr += ((u32)recv[3] << 24);

reset_handler = recv[4];
    reset_handler += ((u32)recv[5] << 8);
    reset_handler += ((u32)recv[6] << 16);
    reset_handler += ((u32)recv[7] << 24);

LOG_I("stk_addr :\t\t0x%08X", stk_addr);
    LOG_I("reset_handler :\t0x%08X",reset_handler);

stk_addr &= 0x3FF00000;
    if(((reset_handler & 0xff000000) != QSPI_BASE) || 
        (stk_addr != 0x20000000 && stk_addr != 0x24000000 && 
            stk_addr != 0x30000000 && stk_addr != 0x38000000))
    {
        LOG_E("No legitimate application.");
        return;
    }

W25QXX_Reset();

W25QXX_Init();

W25Q_Memory_Mapped_Enable();

rt_thread_delay(100);

LOG_I("Jump to application running ... 0x%#X,  0x%#X\n", *(uint32_t *)(QSPI_BASE), *(uint32_t *)(QSPI_BASE + 4));

#if (__MPU_PRESENT == 1)
    HAL_MPU_Disable();
    #endif

SCB_DisableICache();
    SCB_DisableDCache();

__set_PRIMASK(1);

SysTick->CTRL = 0;
    SysTick->LOAD = 0;
    SysTick->VAL  = 0;

for(int i = 0; i < 8; i++)
    {
        NVIC->ICER[i] = 0xffffffff;
        NVIC->ICPR[i] = 0xffffffff;
    }

//__set_PRIMASK(0);

__set_MSP(stk_addr);

__set_CONTROL(0);

app_func = (app_func_t) (reset_handler);
    app_func();

LOG_I("Qboot jump to application fail.");
}
```

下面是两次的启动日志， 第二次直接卡死， 我debug调试也不知道从哪下手，求助下大佬！

```
 \ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Mar  1 2023 10:27:57
 2006 - 2022 Copyright by RT-Thread team
[D/main] Hello RT-Thread!
msh >[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!

\ | /
- RT -     Thread Operating System
 / | \     4.1.1 build Mar  1 2023 10:27:57
 2006 - 2022 Copyright by RT-Thread team
[D/main] Hello RT-Thread!
msh >[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!
[D/main] Hello RT-Thread!