stm iap 跳转后 FLASH的SR出错！

hb1989102 提问时间：2017-6-1 11:39 /

我在IAP跳转后出现了FLASH_FLAG_PGSERR的错误，跳转后app能正确跑了起来，但是读写内部的flash出错，出现的是FLASH_FLAG_PGSERR的错误，打印的寄存器值是：>>>>>>>>>>>>FLASH->ACR:[0x705]
>>>>>>>>>>>>FLASH->KEYR:[0x0]
>>>>>>>>>>>>FLASH->OPTKEYR:[0x0]
>>>>>>>>>>>>FLASH->SR:[0x80]
>>>>>>>>>>>>FLASH->CR:[0x80000200]
>>>>>>>>>>>>FLASH->OPTCR:[0xfffaaed]
>>>>>>>>>>>>FLASH->OPTCR1:[0x0]
我在跳转前打印的寄存器是这样的：
>>>>>>>>>>>>FLASH->ACR:[0x705]
>>>>>>>>>>>>FLASH->KEYR:[0x0]
>>>>>>>>>>>>FLASH->OPTKEYR:[0x0]
>>>>>>>>>>>>FLASH->SR:[0x0]
>>>>>>>>>>>>FLASH->CR:[0x80000200]
>>>>>>>>>>>>FLASH->OPTCR:[0xfffaaed]
>>>>>>>>>>>>FLASH->OPTCR1:[0x0]

=====================================================

打印前的
UsartDeInit();
      HAL_DeInit();
      NVIC_DisableIRQ(SysTick_IRQn);
      __disable_irq();
      /* Jump to user application */
      JumpAddress = *(__IO uint32_t*)(APPLICATION_ADDRESS + 4);
      Jump_To_Application = (pFunction)JumpAddress;
      //SCB->VTOR = (uint32_t)APP_VECTOR_TABLE;
      /* Initialize user application's Stack Pointer */
      __set_MSP(*(__IO uint32_t*) APPLICATION_ADDRESS);

      Jump_To_Application();

跳转后是：
__disable_irq();
NVIC_SetVectorTable(NVIC_VectTab_FLASH, VECTOR_ADDRESS);
/* USER CODE END 1 */

/* MCU Configuration----------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
   HAL_Init();
/* Configure the system clock */
SystemClock_Config();
__enable_irq();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();

/* USER CODE BEGIN 2 */
GPIOInit();
UsartInit();

=====================================================
求大神分析一下，为啥跳转前后会导致flash的FLASH_FLAG_PGSERR错误？？？？？？？？？？？？？？？