/* Microchip Technology Inc. and its subsidiaries.  You may use this software 
 * and any derivatives exclusively with Microchip products. 
 * 
 * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS".  NO WARRANTIES, WHETHER 
 * EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED 
 * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A 
 * PARTICULAR PURPOSE, OR ITS INTERACTION WITH MICROCHIP PRODUCTS, COMBINATION 
 * WITH ANY OTHER PRODUCTS, OR USE IN ANY APPLICATION. 
 *
 * IN NO EVENT WILL MICROCHIP BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, 
 * INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND 
 * WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS 
 * BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE 
 * FULLEST EXTENT ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS 
 * IN ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF 
 * ANY, THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
 *
 * MICROCHIP PROVIDES THIS SOFTWARE CONDITIONALLY UPON YOUR ACCEPTANCE OF THESE 
 * TERMS. 
 */

/* 
 * File:   
 * Author: 
 * Comments:
 * Revision history: 
 */

#define F_CPU 4000000UL
#define RTC_PERIOD (511)
#define DELAY_TIME 1000
#define USART3_BAUD_RATE(BAUD_RATE) ((float) (64*F_CPU /(16*(float)BAUD_RATE) )+0.5)
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>

// This is a guard condition so that contents of this file are not included
// more than once.  
#ifndef XC_HEADER_TEMPLATE_H
#define	XC_HEADER_TEMPLATE_H

#include <xc.h> // include processor files - each processor file is guarded.  

uint16_t adcVal;

void led_init(void)
{	
	/* Disable digital input buffer */
	PORTC.PIN6CTRL &= ~PORT_ISC_gm;
	PORTC.PIN6CTRL |= PORT_ISC_INPUT_DISABLE_gc;
	/* Disable pull-up resistor */
	PORTC.PIN6CTRL &= ~PORT_PULLUPEN_bm;
	PORTE.DIRSET = PIN0_bm;
	PORTE.DIRSET = PIN1_bm;
	PORTE.DIRSET = PIN2_bm;
	
}

void USART3_init(void)
{
	PORTB.DIRCLR &= ~PIN1_bm;
	PORTB.DIRSET |= PIN0_bm;
	PORTB.DIRCLR = PIN2_bm;
	PORTB.PIN2CTRL |= PORT_PULLUPEN_bm;
	USART3.CTRLB |= USART_RXEN_bm | USART_TXEN_bm; /* Enable both TX and
	RX */
	USART3.BAUD = USART3_BAUD_RATE (9600); /* Setting the baudrate */
}

void ADC0_init(void)
{
	
	ADC0.CTRLC = ADC_PRESC_DIV4_gc;
	VREF.ADC0REF = VREF_REFSEL_VDD_gc; /* Internal reference */
	ADC0.CTRLA = ADC_ENABLE_bm /* ADC Enable: enabled */
	| ADC_RESSEL_10BIT_gc; /* 10-bit mode */
	/* Select ADC channel */
	ADC0.MUXPOS = ADC_MUXPOS_AIN6_gc;
}

void USART3_sendChar(char c)
{
	while (!(USART3.STATUS & USART_DREIF_bm))
	{
		;
	}
	USART3.TXDATAL = c;
}

void USART3_sendString(char *str)
{
	for(size_t i = 0; i < strlen(str); i++)
	{
		USART3_sendChar(str[i]);
	}
}

static int USART3_printChar(char c, FILE *stream)
{
	USART3_sendChar(c);
	return 0;
}

uint16_t ADC0_read(void)
{
	/* Start ADC conversion */
	ADC0.COMMAND = ADC_STCONV_bm;
	/* Wait until ADC conversion done */
	while ( !(ADC0.INTFLAGS & ADC_RESRDY_bm) )
	{
		;
	}
	/* Clear the interrupt flag by writing 1: */
	ADC0.INTFLAGS = ADC_RESRDY_bm;
	return ADC0.RES;
}

bool ADC0_conersionDone(void)
{
	return (ADC0.INTFLAGS & ADC_RESRDY_bm);
}