flash qboot

Qboot下载app到内部flash 失败问题

发布于 2022-03-14 11:38:47 浏览：808 订阅该版

2 个回答

sync 2022-03-14

这家伙很懒，什么也没写！

jyong_312 2022-03-14

这家伙很懒，什么也没写！

没有开，仿真跟踪了下，驱动文件《drv_flash_f4.c》，写flash过程中出错了,出错函数：HAL_FLASH_Program
MCU:stm32f412ret
/**
 * Write data to flash.
 * @note This operation's units is word.
 * @note This operation must after erase. @see flash_erase.
 *
 * @param addr flash address
 * @param buf the write data buffer
 * @param size write bytes size
 *
 * @return result
 */
int stm32_flash_write(rt_uint32_t addr, const rt_uint8_t *buf, size_t size)
{
    rt_err_t result      = RT_EOK;
    rt_uint32_t end_addr = addr + size;

if ((end_addr) > STM32_FLASH_END_ADDRESS)
    {
        LOG_E("write outrange flash size! addr is (0x%p)", (void*)(addr + size));
        return -RT_EINVAL;
    }

if (size < 1)
    {
        return -RT_EINVAL;
    }

HAL_FLASH_Unlock();

for (size_t i = 0; i < size; i++, addr++, buf++)
    {
        /* write data to flash */
        if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_BYTE, addr, (rt_uint64_t)(*buf)) == HAL_OK)
        {
            if (*(rt_uint8_t *)addr != *buf)
            {
                result = -RT_ERROR;
                break;
            }
        }
        else
        {
            result = -RT_ERROR;
            break;
        }
    }

HAL_FLASH_Lock();

if (result != RT_EOK)
    {
        return result;
    }

return size;
}