#include "IncrEncoder.h"
#include "stm32f1xx_ll_gpio.h" 
#include "stm32f1xx_ll_bus.h"
#include "stm32f1xx_ll_exti.h"

int index_passed = 0;

void init(void){
// use timer in encoder mode (14.3.16)
	// attach interrupt to pa5 for i
	// enable gpio clock
	// configure pin
	// attach interrupt?
	LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOA);
	
	LL_GPIO_InitTypeDef index_pin_conf;
	index_pin_conf.Mode = LL_GPIO_MODE_FLOATING;
	index_pin_conf.Pin = LL_GPIO_PIN_5;
	LL_GPIO_Init(GPIOC, &index_pin_conf);
	
	NVIC_SetPriority(EXTI9_5_IRQn, 12); // prio??
	NVIC_EnableIRQ(EXTI9_5_IRQn);
	
}

void EXTI9_5_IRQHandler(void){
	index_passed = 1;
	// TODO clear pending
}

int isAbsolute(void);

int getAngle(void);