/* Copyright (C) 2020 tyrolyean
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _AVR_H_TEXT
#define _AVR_H_TEXT



#define F_CPU 16000000UL
#include <avr/io.h>

/* Shift values for the peripherials on the control bus PORTL */

#define MR_SHIFT      0
#define WR_SHIFT      1
#define RD_SHIFT      2
#define CS_UART_SHIFT 3
#define CS_DAC_SHIFT  4

#define ADDR_REG      PORTK
#define DATA_REG      PORTF
#define CTRL_REG      PORTL

#define ADDR_DDR_REG  DDRK
#define DATA_DDR_REG  DDRF
#define CTRL_DDR_REG  DDRL

/* Included here to prevent accidental redefinition of F_CPU */
#include <util/delay.h>

/* Time it takes for the bus lanes to become stable for read and write access */
#define BUS_HOLD_US 1

void set_addr(uint8_t addr);

#endif