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/*
pins_arduino.c - pin definitions for the Arduino board
Part of Arduino / Wiring Lite
Copyright (c) 2005 David A. Mellis
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
Modified 28-08-2009 for attiny84 R.Wiersma
Modified 09-10-2009 for attiny45 A.Saporetti
*/
#ifndef Pins_Arduino_h
#define Pins_Arduino_h
#include <avr/pgmspace.h>
// Defines to make D4 support PWM
// See for more info: http://forums.adafruit.com/viewtopic.php?f=52&t=43951
//#define TCCR1A GTCCR
//#define WGM10 PWM1B
// ATMEL ATTINY45 / ARDUINO
//
// +-\/-+
// Ain0 (D 5) PB5 1| |8 Vcc
// Ain3 (D 3) PB3 2| |7 PB2 (D 2) Ain1
// Ain2 (D 4) PB4 3| |6 PB1 (D 1) pwm1
// GND 4| |5 PB0 (D 0) pwm0
// +----+
static const uint8_t A0 = 6;
static const uint8_t A1 = 7;
static const uint8_t A2 = 8;
static const uint8_t A3 = 9;
#define digitalPinToPCICR(p) ( ((p) >= 0 && (p) <= 4) ? (&GIMSK) : ((uint8_t *)0) )
#define digitalPinToPCICRbit(p) ( PCIE )
#define digitalPinToPCMSK(p) ( ((p) <= 4) ? (&PCMSK) : ((uint8_t *)0) )
#define digitalPinToPCMSKbit(p) ( (p) )
#define analogPinToChannel(p) ( (p) < 6 ? (p) : (p) - 6 )
#define TCCR1A GTCCR
#ifdef ARDUINO_MAIN
void initVariant()
{
GTCCR |= (1 << PWM1B);
}
// these arrays map port names (e.g. port B) to the
// appropriate addresses for various functions (e.g. reading
// and writing) tiny45 only port B
const uint16_t PROGMEM port_to_mode_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
(uint16_t) &DDRB,
};
const uint16_t PROGMEM port_to_output_PGM[] = {
NOT_A_PORT,
NOT_A_PORT,
(uint16_t) &PORTB,
};
const uint16_t PROGMEM port_to_input_PGM[] = {
NOT_A_PIN,
NOT_A_PIN,
(uint16_t) &PINB,
};
const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
PB, /* 0 */
PB,
PB,
PB,
PB,
PB, // 5
PB, // A0
PB,
PB,
PB, // A4
};
const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
_BV(0), /* 0, port B */
_BV(1),
_BV(2),
_BV(3), /* 3 port B */
_BV(4),
_BV(5),
_BV(5),
_BV(2),
_BV(4),
_BV(3),
};
const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
TIMER0A, /* OC0A */
TIMER0B,
NOT_ON_TIMER,
NOT_ON_TIMER,
TIMER1B,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
NOT_ON_TIMER,
};
#endif
#endif
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