void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)

[MastVi]

Hi,

/**

• @brief EXTI line detection callback.
• @param GPIO_Pin Specifies the port pin connected to corresponding EXTI line.
• @RetVal None
  /
  __weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
  {
  / Prevent unused argument(s) compilation warning */
  UNUSED(GPIO_Pin);

/* NOTE: This function should not be modified, when the callback is needed,
the HAL_GPIO_EXTI_Callback could be implemented in the user file
*/
}

Great, let's write our own HAL_GPIO_EXTI_Callback then:
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
printf("oh my\n");
}

In the above code, At which pin trigger the above code function should be call?

Thanks