STM32L152VE：使用端口F和G进行外部中断时很麻烦

问题描述

我正在使用stm32l152VE微控制器，并且尝试使用外部中断来使LED闪烁。该中断在除端口F和G以外的所有端口中均正常运行，是否有人对此有所了解？ 发生了吗？

    /* Includes ------------------------------------------------------------------*/
#include "main.h"

/** @addtogroup STM32L1xx_HAL_Examples
  * @{
  */


void SystemClock_Config(void);
static void Error_Handler(void);
static void EXTI15_10_IRQHandler_Config(void);
/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program
  * @param  None
  * @retval None
  */
int main(void)
{
  
  HAL_Init();

  /* -1- Initialize LEDs mounted on stm32l152RE-Nucleo Rev C board */
  BSP_LED_Init(LED2);

 
  SystemClock_Config();

  EXTI15_10_IRQHandler_Config();

  /* Infinite loop */
  while (1)
  {
  }
}

/**
  * @brief  System Clock Configuration
  *         The system Clock is configured as follow :
  *            System Clock source            = PLL (HSI)
  *            SYSCLK(Hz)                     = 32000000
  *            HCLK(Hz)                       = 32000000
  *            AHB Prescaler                  = 1
  *            APB1 Prescaler                 = 1
  *            APB2 Prescaler                 = 1
  *            HSI Frequency(Hz)              = 16000000
  *            PLLMUL                         = 6
  *            PLLDIV                         = 3
  *            Flash Latency(WS)              = 1
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};

  /* Enable HSE Oscillator and Activate PLL with HSE as source */
  RCC_OscInitStruct.OscillatorType      = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState            = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState        = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource       = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLMUL          = RCC_PLL_MUL6;
  RCC_OscInitStruct.PLL.PLLDIV          = RCC_PLL_DIV3;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /* Set Voltage scale1 as MCU will run at 32MHz */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONfig(PWR_REGULATOR_VOLTAGE_SCALE1);
  
  /* Poll VOSF bit of in PWR_CSR. Wait until it is reset to 0 */
  while (__HAL_PWR_GET_FLAG(PWR_FLAG_VOS) != RESET) {};

  /* Select PLL as system clock source and configure the HCLK,PCLK1 and PCLK2
  clocks dividers */
  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | 
  RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct,FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
}
/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
static void Error_Handler(void)
{
  /* User may add here some code to deal with this error */
  while(1)
  {
  }
}

/**
  * @brief  Configures EXTI lines 15 to 10 (connected to PC.13 pin) in interrupt mode
  * @param  None
  * @retval None
  */
static void EXTI15_10_IRQHandler_Config(void)
{
  GPIO_InitTypeDef   GPIO_InitStructure;

  /* Enable GPIOC clock */
  __HAL_RCC_GPIOG_CLK_ENABLE();

  /* Configure PG12 pin as input floating */
  GPIO_InitStructure.Mode = GPIO_MODE_IT_RISING_FALLING;
  GPIO_InitStructure.Pull = GPIO_PULLUP;
  GPIO_InitStructure.Pin = GPIO_PIN_12;
  HAL_GPIO_Init(GPIOG,&GPIO_InitStructure);

  /* Enable and set EXTI lines 15 to 10 Interrupt to the lowest priority */
  HAL_NVIC_SetPriority(EXTI15_10_IRQn,2,0);
  HAL_NVIC_EnableIRQ(EXTI15_10_IRQn);
}

/**
  * @brief EXTI line detection callbacks
  * @param GPIO_Pin: Specifies the pins connected EXTI line
  * @retval None
  */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
  if (GPIO_Pin == GPIO_PIN_12)
  {
    /* Toggle LED2 */
    BSP_LED_Toggle(LED2);
  }
}

#ifdef  USE_FULL_ASSERT

void assert_Failed(uint8_t *file,uint32_t line)
{
  /* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n",file,line) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif

我正在使用示例程序之一。我一直在尝试使用所有端口进行外部中断，该程序对于除F和G以外的所有其他端口都运行良好。

预先感谢

解决方法

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