Incorrect pin label used in HAL_GPIO_EXTI_IRQHandler() call inside EXTIx_IRQHandler() after migration to v1.17.1

[fronders]

Describe the set-up

• Custom board based on STM32L486VGTx
• CubeMX v6.4.0 with CubeL4 v1.17.1 under Windows 10 Pro x64 21H1 build 19043.1466

Describe the bug After migration to v1.17.1 regenerated code in stm32l4xx_it.c has EXTIx_IRQHandler() calls with incorrect argument for HAL_GPIO_EXTI_IRQHandler(). It has incorrect pin labels - uses label of other pin with same pin number, but different port (this pin is set in GPIO_Input or AF Output mode, but definitely not EXTI):

Old code:

/******************************************************************************/
/* STM32L4xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32l4xx.s).                    */
/******************************************************************************/

/**
  * @brief This function handles EXTI line2 interrupt.
  */
void EXTI2_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI2_IRQn 0 */

  /* USER CODE END EXTI2_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_2);
  /* USER CODE BEGIN EXTI2_IRQn 1 */

  /* USER CODE END EXTI2_IRQn 1 */
}

/**
  * @brief This function handles EXTI line3 interrupt.
  */
void EXTI3_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI3_IRQn 0 */

  /* USER CODE END EXTI3_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_3);
  /* USER CODE BEGIN EXTI3_IRQn 1 */

  /* USER CODE END EXTI3_IRQn 1 */
}

/**
  * @brief This function handles EXTI line4 interrupt.
  */
void EXTI4_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI4_IRQn 0 */

  /* USER CODE END EXTI4_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_4);
  /* USER CODE BEGIN EXTI4_IRQn 1 */

  /* USER CODE END EXTI4_IRQn 1 */
}

...

/**
  * @brief This function handles EXTI line[15:10] interrupts.
  */
void EXTI15_10_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI15_10_IRQn 0 */

  /* USER CODE END EXTI15_10_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_10);
  /* USER CODE BEGIN EXTI15_10_IRQn 1 */

  /* USER CODE END EXTI15_10_IRQn 1 */
}

New regenerated code:

/******************************************************************************/
/* STM32L4xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32l4xx.s).                    */
/******************************************************************************/

/**
  * @brief This function handles EXTI line2 interrupt.
  */
void EXTI2_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI2_IRQn 0 */

  /* USER CODE END EXTI2_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(USB_OCS2_Pin);
  /* USER CODE BEGIN EXTI2_IRQn 1 */

  /* USER CODE END EXTI2_IRQn 1 */
}

/**
  * @brief This function handles EXTI line3 interrupt.
  */
void EXTI3_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI3_IRQn 0 */

  /* USER CODE END EXTI3_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(USB_SUSP_IND_Pin);
  /* USER CODE BEGIN EXTI3_IRQn 1 */

  /* USER CODE END EXTI3_IRQn 1 */
}

/**
  * @brief This function handles EXTI line4 interrupt.
  */
void EXTI4_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI4_IRQn 0 */

  /* USER CODE END EXTI4_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(OSC_FREQ_Pin);
  /* USER CODE BEGIN EXTI4_IRQn 1 */

  /* USER CODE END EXTI4_IRQn 1 */
}

...

/**
  * @brief This function handles EXTI line[15:10] interrupts.
  */
void EXTI15_10_IRQHandler(void)
{
  /* USER CODE BEGIN EXTI15_10_IRQn 0 */

  /* USER CODE END EXTI15_10_IRQn 0 */
  HAL_GPIO_EXTI_IRQHandler(FLASH_CLK_Pin);
  /* USER CODE BEGIN EXTI15_10_IRQn 1 */

  /* USER CODE END EXTI15_10_IRQn 1 */
}

These are GPIO settings used:

Pin labels highlighted in yellow should have been used, but instead code got generated with labels of other pins that are not even in EXTI mode (technically it works, because GPIO_PIN_x is the same, but labels are confusing)

[ASELSTM]

Hi @fronders,

Thank you for this report. The point you reported is actually related to the CubeMX generation problem and not to the firmware published in this repository. Unfortunately, we don't treat aspect related to CubeMX tool in our GitHub repositories. They are rather treated at the STM32CubeMX dedicated page of the ST Community .

Since this issue is not directly related to the STM32Cube firmware but rather to our ecosystem, please allow me then to close this thread. Thank you for your comprehension.

With regards,