#include "stm32l0xx.c"
#include <stdio.h>
// Where is the led is connected
// Port:A
// Pin:PA5
// Where is the PUSH BTN is connected
// Port:C
// Pin:PC13
#define GPIOAEN		(1U<<0)
#define GPIOCEN		(1U<<0)
#define PIN5 		(1U<<5)
#define LED_PIN		PIN13
#define PIN13 		(1U<<13)
#define BTN_PIN		PIN13
void setup() 
{
  RCC->IOPENR=GPIOAEN	;
	RCC->IOPENR=GPIOCEN	;
	GPIOA->MODER |=(1<<10);
	GPIOA->MODER &=~(1<<11);

	GPIOC->MODER &=~(1<<27);
	GPIOC->MODER &=~(1<<26);

	while(1)

	{
		if(GPIOC->IDR & BTN_PIN )
		{
			GPIOA->BSRR=LED_PIN;
		}
		else
		{
			GPIOA->BSRR=(1<<21);
		}


	 }
}

void loop() 
{

}