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???????????????
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