当我跳转到应用程序时(STM32)中断不起作用

时间:2019-03-12 10:40:11

标签: c++ stm32 stm32f4

更新:也许更好的问题是我应该如何调试该问题?我在OpenOCD调试器中使用VS Code。我总是清理构建。 JumpToApplication()之后,我能做的最好的事情就是看看调试器在我暂停/进入时停在什么地址。

我能够将程序刷新到分区A(@地址0x8060000)中,并通过CRC检查对其进行验证。该程序可以在while循环中正常运行任何东西(LED3切换,UART);但是,基于定时器中断的LED2切换不起作用。当我正常闪烁程序(即不使用引导程序)时,它可以100%运行,包括LED2切换。

以下是我已解决的一些资源(123AN2606)。如何使中断适用于第二个应用程序?参考资料建议我清除未决的中断,但是我不知道解决该问题的最佳方法。在我的引导程序应用程序中,我使用ETH,UART和GPIO外设,因此我将通读手册并读取寄存器以清除中断标志,但是其他中断(如NMI,HardFault)又该如何解决?好?通过Google搜索,我没有找到任何方便的功能来清除所有未决的中断,是否存在?

下面,我在0x8000000处包含用于引导加载程序应用程序的跳转功能/链接器文件,在0x8060000处包含用于应用程序的main.c /链接器文件:

BOOTLOADER程序中跳转功能为0x8000000

void ApplicationManager::RunActivePartition()
{     
    JumpToApplication = (void (*)(void)) (*((uint32_t *) (active_partition.address + 4)));

    /* Set vector table offset register */
    SetVectorTable(MemoryInfo::BTLR_ADDRESS, MemoryInfo::PARTITION_A_OFFSET_FROM_BTLR);

    /* STM32 needs the stack pointer to start at the beginning of
    ** the application in flash. This must happen last */ 
    __set_MSP(*(__IO uint32_t*) active_partition.address);

    JumpToApplication();


    /*************** Other things I have tried ***************/
    /* Reset RCC clock configuration */
    // HAL_RCC_DeInit();

    /* Disable peripheral clocks */
    // __HAL_RCC_GPIOA_CLK_DISABLE();
    // __HAL_RCC_GPIOB_CLK_DISABLE();
    // __HAL_RCC_GPIOC_CLK_DISABLE();
    // __HAL_RCC_GPIOD_CLK_DISABLE();
    // __HAL_RCC_GPIOG_CLK_DISABLE();
    // __HAL_RCC_GPIOH_CLK_DISABLE();
    // __HAL_RCC_PWR_CLK_DISABLE();

    /* Disable Peripherals */
    // HAL_CRC_MspDeInit(&hcrc);
    // HAL_UART_DeInit(&huart3);

    /* Disable and reset systick timer */
    // SysTick->CTRL= 0;
    // SysTick->LOAD = 0;
    // SysTick->VAL = 0;

    /* Disable all interrupts */
    // __disable_irq();

    /* Clear pending interrupts */

    /* Remap system memory */
    // SYSCFG->MEMRMP = SYSCFG_MEMRMP_MEM_MODE_0; // 

    /*************** What I want to add when more basic implementation works ***************/
    // /* Relocate vector interrupt table to RAM */
    // CopyVectorInterruptTable();

    // /* TODO: Patch VIT with bootloader interrupt handlers (ex: hard fault handler) */
    // PatchVectorInterruptTable();

    // if (!CopyandPatchOkay())
    // {
    //     LOG_DEBUG("Vector interrupt table not probably copied and/or patched \n");
    // }
    // else
    // {
    //     LOG_DEBUG("Device ready to jump into application \n");
    // }
}

应用程序链接文件(BOOTLOADER)0x8000000

/* Highest address of the user mode stack */
_estack = 0x20010000;    /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200;      /* required amount of heap  */
_Min_Stack_Size = 0x400; /* required amount of stack */

/* Specify the memory areas */
MEMORY
{
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 192K
CCMRAM (rw)      : ORIGIN = 0x10000000, LENGTH = 64K
FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 2048K
}

申请跳转到0x8060000

void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim10)
{
 HAL_GPIO_TogglePin(LD2_GPIO_Port, LD2_Pin);
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
  SCB->VTOR = 0x8060000; //---- @berendi's suggestion
  /* USER CODE END 1 */

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

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART3_UART_Init();
  MX_TIM10_Init();
  /* USER CODE BEGIN 2 */
  uint32_t count = 0;
  HAL_TIM_Base_Start_IT(&htim10);
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    for (uint32_t i=0; i < 100000; i++);
    HAL_GPIO_TogglePin(LD3_GPIO_Port, LD3_Pin);
    _printf("Hi %d \n", count);
    count++;
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

应用程序链接文件(INTERRUPT-BLINKY)0x8060000

/* Highest address of the user mode stack */
_estack = 0x20010000;    /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200;      /* required amount of heap  */
_Min_Stack_Size = 0x400; /* required amount of stack */

/* Specify the memory areas */
MEMORY
{
RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 192K
CCMRAM (rw)      : ORIGIN = 0x10000000, LENGTH = 64K
FLASH (rx)      : ORIGIN = 0x8060000, LENGTH = 1024K
}

1 个答案:

答案 0 :(得分:2)

在由STM32CubeMX生成的项目中,SystemInit()中的system_stm32f4xx.c函数由main()之前的启动代码调用,将向量表地址寄存器重置为FLASH的开头。

/* #define VECT_TAB_SRAM */
#define VECT_TAB_OFFSET  0x00 /*!< Vector Table base offset field.
                                   This value must be a multiple of 0x200. */

/* -- snip -- */

#ifdef VECT_TAB_SRAM
  SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
#else
  SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
#endif

您可以直接编辑此文件(而不使用appears to overwrite this file来在项目上再次运行STM32CubeMX),也可以在启用中断之前在main()中再次设置正确的值。