/*
 * taskB.c
 *
 * Created: 02/12/2019 09:00:25
 * Author : zmitac
 */

//////////////////////////////////////////////////////////////////////////////
// Laboratory AVR Microcontrollers Part1
// Program template for lab 7
// Please fill in this information before starting coding
// Authors:
//
// Group:
// Section:
//
// Task:
//
// Todo:
//
//
// Version: 5.0
//////////////////////////////////////////////////////////////////////////////
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <avr/eeprom.h>
#define F_CPU 16000000L
#define nLength 256
uint8_t TAB_RAM[nLength];
uint8_t const TAB_ROM[] PROGMEM = { 0x00, 0x01, 0x02, 0x03,
	0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1F, 0x1F,
	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
	0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
	0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
	0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaA, 0xaB, 0xaC, 0xaD, 0xAE, 0xAF,
	0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
	0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
	0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
	0xFF, 0xFE, 0xFD, 0xFC, 0xFB, 0xFA, 0xF9, 0xF8, 0xF7, 0xF6, 0xF5, 0xF4, 0xF3, 0xF2, 0xF1, 0xF0,
0x00, 0x00};

volatile int flag= 0;
ISR (TIMER1_COMPA_vect)
{
	TCNT1 =0;
	flag++;
}



//---------------------------------------------------------------------
int main (void)
{

			DDRB=0xFF;
			DDRA=0x00;

			PORTA= 0xFF;		//
			PORTB = 0x11;		// 00010001

			OCR1A = 31250;

			TCCR1B |= (1 << WGM12);
			// Mode 4, CTC on OCR1A

			TIMSK1 |= (1 << OCIE1A); 		//Set interrupt on compare match


			TCCR1B |= (1 << CS12) ; // set prescaler to 256 and start the timer

			int i=0;

			flag = 0;

			sei();
			// enable interrupts

			//while(PINA == 0xFF) //przyciski przyciscniete)
			//{
			//}
			while (1){
				if(flag > 0){
					flag = 0;

					if (PINA != 0xFF) {
						if(pgm_read_byte_far(&TAB_ROM[i]) == 0x00 && pgm_read_byte_far(&TAB_ROM[i+1]) == 0x00) {

							PORTB |= (1 << 5);
							while(flag<=1){
							}
							PORTB &= 0x11;
								flag=0;
								i=0;
						}
						else{
							TAB_RAM[i] = pgm_read_byte_far(&TAB_ROM[i]);
							i++;
						}
					}
				}
			}

		return 0;
}