[Solved] STM32L462RE Interrupt Issues, Cannot get GPIO interrupts to work in my project.

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[Solution] Code was moved around and then it compiled correctly. Misinterpretation of the problem.

IOC Configuration:

Pin PB9 - External Interrupt with Rising/Falling Edge trigger detection

Pull-Down

NVIC EXTI line [9:5] Enabled Preemption Priority 1 Sub Priority 0

Code Changes: Inside Main.c

/* USER CODE BEGIN WHILE */

void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)

{

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_11, GPIO_PIN_SET);

}

To my understanding to accomplish the interrupt with a callback to turn an led on all I need to do is change the state of the pin from high to low or visa versa. Then override the _weak definition of HAL_GPIO_EXTI_Callback.

Any advice would be very helpful here but I have tried almost all of the different settings for registering the interrupts without any luck.

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Imen.DBest answer

ST Technical Moderator

Hello @AVins.1 and welcome to the Community :)

Thank you for updating your post and sharing the solution.

"[Solution] Code was moved around and then it compiled correctly. Misinterpretation of the problem."

Imen

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