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201 lines
4.3 KiB
201 lines
4.3 KiB
/*
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pins_arduino.c - pin definitions for the Arduino board
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Part of Arduino / Wiring Lite
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Copyright (c) 2005 David A. Mellis
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General
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Public License along with this library; if not, write to the
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Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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Boston, MA 02111-1307 USA
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$Id: pins_arduino.c 254 2007-04-20 23:17:38Z mellis $
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*/
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#include <avr/io.h>
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#include "wiring_private.h"
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#include "pins_arduino.h"
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// On the Sanguino board, digital pins are also used
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// for the analog output (software PWM). Analog input
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// pins are a separate set.
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// ATMEL ATMEGA644P / SANGUINO
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//
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// +---\/---+
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// INT0 (D 0) PB0 1| |40 PA0 (AI 0 / D31)
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// INT1 (D 1) PB1 2| |39 PA1 (AI 1 / D30)
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// INT2 (D 2) PB2 3| |38 PA2 (AI 2 / D29)
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// PWM (D 3) PB3 4| |37 PA3 (AI 3 / D28)
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// PWM (D 4) PB4 5| |36 PA4 (AI 4 / D27)
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// MOSI (D 5) PB5 6| |35 PA5 (AI 5 / D26)
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// MISO (D 6) PB6 7| |34 PA6 (AI 6 / D25)
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// SCK (D 7) PB7 8| |33 PA7 (AI 7 / D24)
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// RST 9| |32 AREF
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// VCC 10| |31 GND
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// GND 11| |30 AVCC
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// XTAL2 12| |29 PC7 (D 23)
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// XTAL1 13| |28 PC6 (D 22)
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// RX0 (D 8) PD0 14| |27 PC5 (D 21) TDI
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// TX0 (D 9) PD1 15| |26 PC4 (D 20) TDO
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// RX1 (D 10) PD2 16| |25 PC3 (D 19) TMS
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// TX1 (D 11) PD3 17| |24 PC2 (D 18) TCK
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// PWM (D 12) PD4 18| |23 PC1 (D 17) SDA
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// PWM (D 13) PD5 19| |22 PC0 (D 16) SCL
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// PWM (D 14) PD6 20| |21 PD7 (D 15) PWM
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// +--------+
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//
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#define PA 1
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#define PB 2
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#define PC 3
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#define PD 4
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// these arrays map port names (e.g. port B) to the
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// appropriate addresses for various functions (e.g. reading
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// and writing)
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const uint8_t PROGMEM port_to_mode_PGM[] =
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{
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NOT_A_PORT,
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&DDRA,
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&DDRB,
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&DDRC,
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&DDRD,
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};
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const uint8_t PROGMEM port_to_output_PGM[] =
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{
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NOT_A_PORT,
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&PORTA,
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&PORTB,
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&PORTC,
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&PORTD,
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};
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const uint8_t PROGMEM port_to_input_PGM[] =
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{
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NOT_A_PORT,
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&PINA,
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&PINB,
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&PINC,
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&PIND,
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};
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const uint8_t PROGMEM digital_pin_to_port_PGM[] =
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{
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PB, /* 0 */
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PB,
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PB,
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PB,
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PB,
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PB,
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PB,
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PB,
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PD, /* 8 */
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PD,
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PD,
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PD,
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PD,
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PD,
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PD,
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PD,
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PC, /* 16 */
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PC,
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PC,
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PC,
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PC,
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PC,
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PC,
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PC,
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PA, /* 24 */
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PA,
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PA,
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PA,
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PA,
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PA,
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PA,
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PA /* 31 */
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};
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const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] =
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{
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_BV(0), /* 0, port B */
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_BV(1),
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_BV(2),
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_BV(3),
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_BV(4),
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_BV(5),
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_BV(6),
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_BV(7),
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_BV(0), /* 8, port D */
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_BV(1),
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_BV(2),
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_BV(3),
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_BV(4),
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_BV(5),
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_BV(6),
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_BV(7),
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_BV(0), /* 16, port C */
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_BV(1),
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_BV(2),
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_BV(3),
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_BV(4),
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_BV(5),
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_BV(6),
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_BV(7),
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_BV(7), /* 24, port A */
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_BV(6),
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_BV(5),
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_BV(4),
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_BV(3),
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_BV(2),
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_BV(1),
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_BV(0)
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};
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const uint8_t PROGMEM digital_pin_to_timer_PGM[] =
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{
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NOT_ON_TIMER, /* 0 - PB0 */
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NOT_ON_TIMER, /* 1 - PB1 */
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NOT_ON_TIMER, /* 2 - PB2 */
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TIMER0A, /* 3 - PB3 */
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TIMER0B, /* 4 - PB4 */
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NOT_ON_TIMER, /* 5 - PB5 */
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NOT_ON_TIMER, /* 6 - PB6 */
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NOT_ON_TIMER, /* 7 - PB7 */
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NOT_ON_TIMER, /* 8 - PD0 */
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NOT_ON_TIMER, /* 9 - PD1 */
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NOT_ON_TIMER, /* 10 - PD2 */
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NOT_ON_TIMER, /* 11 - PD3 */
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TIMER1B, /* 12 - PD4 */
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TIMER1A, /* 13 - PD5 */
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TIMER2B, /* 14 - PD6 */
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TIMER2A, /* 15 - PD7 */
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NOT_ON_TIMER, /* 16 - PC0 */
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NOT_ON_TIMER, /* 17 - PC1 */
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NOT_ON_TIMER, /* 18 - PC2 */
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NOT_ON_TIMER, /* 19 - PC3 */
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NOT_ON_TIMER, /* 20 - PC4 */
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NOT_ON_TIMER, /* 21 - PC5 */
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NOT_ON_TIMER, /* 22 - PC6 */
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NOT_ON_TIMER, /* 23 - PC7 */
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NOT_ON_TIMER, /* 24 - PA0 */
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NOT_ON_TIMER, /* 25 - PA1 */
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NOT_ON_TIMER, /* 26 - PA2 */
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NOT_ON_TIMER, /* 27 - PA3 */
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NOT_ON_TIMER, /* 28 - PA4 */
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NOT_ON_TIMER, /* 29 - PA5 */
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NOT_ON_TIMER, /* 30 - PA6 */
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NOT_ON_TIMER /* 31 - PA7 */
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};
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