project/Core/Src/Project/local_control.c


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/*
 * local_control.c
 *
 *  Created on: Nov 4, 2025
 *      Author: sowgro
 */

#include <stm32l4xx.h>
#include <stdio.h>
#include "GPIO.h"
#include "project.h"

void local_control_init() {
	GPIO_Init();
	NVIC_EnableIRQ(EXTI9_5_IRQn);
}

void local_control_loop() {

}

void EXTI9_5_IRQHandler() {
	static int prevStatus = -1;
    if (~EXTI->PR1 & EXTI_PR1_PIF9)
    	return;
    EXTI->PR1 |= EXTI_PR1_PIF9;

	if (project_get_mode() != LOCAL_MODE)
		return;

    int status = !!(GPIOA->IDR & GPIO_PIN_9);
    if (prevStatus == status)
    	return;
    prevStatus = status;

    printf("EXT BUTTON %i\r\n", status);
}