mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-01 12:24:14 +01:00
120 lines
2.7 KiB
C
Executable File
120 lines
2.7 KiB
C
Executable File
/*
|
|
pin_atmega8.c - pin definitions for the atmega8
|
|
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
|
|
|
|
$Id$
|
|
*/
|
|
|
|
#include <avr/io.h>
|
|
#include "wiring.h"
|
|
|
|
// We map the pin numbers passed to digitalRead() or
|
|
// analogRead() directly to the corresponding pin
|
|
// numbers on the Atmega8. No distinction is made
|
|
// between analog and digital pins.
|
|
|
|
// ATMEL ATMEGA8
|
|
//
|
|
// +-\/-+
|
|
// PC6 1| |28 PC5
|
|
// PD0 2| |27 PC4
|
|
// PD1 3| |26 PC3
|
|
// PD2 4| |25 PC2
|
|
// PD3 5| |24 PC1
|
|
// PD4 6| |23 PC0
|
|
// VCC 7| |22 GND
|
|
// GND 8| |21 AREF
|
|
// PB6 9| |20 AVCC
|
|
// PB7 10| |19 PB5
|
|
// PD5 11| |18 PB4
|
|
// PD6 12| |17 PB3
|
|
// PD7 13| |16 PB2
|
|
// PB0 14| |15 PB1
|
|
// +----+
|
|
|
|
#define NUM_PINS 28
|
|
#define NUM_PORTS 4
|
|
|
|
#define PB 2
|
|
#define PC 3
|
|
#define PD 4
|
|
|
|
int port_to_mode[NUM_PORTS + 1] = {
|
|
NOT_A_PORT,
|
|
NOT_A_PORT,
|
|
_SFR_IO_ADDR(DDRB),
|
|
_SFR_IO_ADDR(DDRC),
|
|
_SFR_IO_ADDR(DDRD),
|
|
};
|
|
|
|
int port_to_output[NUM_PORTS + 1] = {
|
|
NOT_A_PORT,
|
|
NOT_A_PORT,
|
|
_SFR_IO_ADDR(PORTB),
|
|
_SFR_IO_ADDR(PORTC),
|
|
_SFR_IO_ADDR(PORTD),
|
|
};
|
|
|
|
int port_to_input[NUM_PORTS + 1] = {
|
|
NOT_A_PORT,
|
|
NOT_A_PORT,
|
|
_SFR_IO_ADDR(PINB),
|
|
_SFR_IO_ADDR(PINC),
|
|
_SFR_IO_ADDR(PIND),
|
|
};
|
|
|
|
pin_t digital_pin_to_port_array[] = {
|
|
{ NOT_A_PIN, NOT_A_PIN },
|
|
|
|
{ PC, 6 },
|
|
{ PD, 0 },
|
|
{ PD, 1 },
|
|
{ PD, 2 },
|
|
{ PD, 3 },
|
|
{ PD, 4 },
|
|
{ NOT_A_PIN, NOT_A_PIN },
|
|
{ NOT_A_PIN, NOT_A_PIN },
|
|
{ PB, 6 },
|
|
{ PB, 7 },
|
|
{ PD, 5 },
|
|
{ PD, 6 },
|
|
{ PD, 7 },
|
|
{ PB, 0 },
|
|
|
|
{ PB, 1 },
|
|
{ PB, 2 },
|
|
{ PB, 3 },
|
|
{ PB, 4 },
|
|
{ PB, 5 },
|
|
{ NOT_A_PIN, NOT_A_PIN },
|
|
{ NOT_A_PIN, NOT_A_PIN },
|
|
{ NOT_A_PIN, NOT_A_PIN },
|
|
{ PC, 0 },
|
|
{ PC, 1 },
|
|
{ PC, 2 },
|
|
{ PC, 3 },
|
|
{ PC, 4 },
|
|
{ PC, 5 },
|
|
};
|
|
|
|
pin_t *digital_pin_to_port = digital_pin_to_port_array;
|
|
pin_t *analog_in_pin_to_port = digital_pin_to_port_array;
|
|
pin_t *analog_out_pin_to_port = digital_pin_to_port_array;
|