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470 lines
12 KiB
C
470 lines
12 KiB
C
/*
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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 804 2009-12-18 16:05:52Z dmellis $
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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 Arduino 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 ATMEGA8 & 168 / ARDUINO
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//
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// +-\/-+
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// PC6 1| |28 PC5 (AI 5)
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// (D 0) PD0 2| |27 PC4 (AI 4)
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// (D 1) PD1 3| |26 PC3 (AI 3)
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// (D 2) PD2 4| |25 PC2 (AI 2)
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// PWM+ (D 3) PD3 5| |24 PC1 (AI 1)
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// (D 4) PD4 6| |23 PC0 (AI 0)
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// VCC 7| |22 GND
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// GND 8| |21 AREF
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// PB6 9| |20 AVCC
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// PB7 10| |19 PB5 (D 13)
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// PWM+ (D 5) PD5 11| |18 PB4 (D 12)
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// PWM+ (D 6) PD6 12| |17 PB3 (D 11) PWM
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// (D 7) PD7 13| |16 PB2 (D 10) PWM
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// (D 8) PB0 14| |15 PB1 (D 9) PWM
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// +----+
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//
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// (PWM+ indicates the additional PWM pins on the ATmega168.)
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// ATMEL ATMEGA1280 / ARDUINO
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//
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// 0-7 PE0-PE7 works
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// 8-13 PB0-PB5 works
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// 14-21 PA0-PA7 works
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// 22-29 PH0-PH7 works
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// 30-35 PG5-PG0 works
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// 36-43 PC7-PC0 works
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// 44-51 PJ7-PJ0 works
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// 52-59 PL7-PL0 works
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// 60-67 PD7-PD0 works
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// A0-A7 PF0-PF7
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// A8-A15 PK0-PK7
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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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#define PE 5
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#define PF 6
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#define PG 7
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#define PH 8
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#define PJ 10
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#define PK 11
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#define PL 12
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#define REPEAT8(x) x, x, x, x, x, x, x, x
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#define BV0TO7 _BV(0), _BV(1), _BV(2), _BV(3), _BV(4), _BV(5), _BV(6), _BV(7)
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#define BV7TO0 _BV(7), _BV(6), _BV(5), _BV(4), _BV(3), _BV(2), _BV(1), _BV(0)
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#if defined(__AVR_ATmega1280__)
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const uint16_t PROGMEM port_to_mode_PGM[] = {
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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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&DDRE,
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&DDRF,
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&DDRG,
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&DDRH,
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NOT_A_PORT,
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&DDRJ,
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&DDRK,
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&DDRL,
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};
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const uint16_t PROGMEM port_to_output_PGM[] = {
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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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&PORTE,
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&PORTF,
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&PORTG,
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&PORTH,
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NOT_A_PORT,
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&PORTJ,
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&PORTK,
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&PORTL,
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};
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const uint16_t PROGMEM port_to_input_PGM[] = {
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NOT_A_PIN,
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&PINA,
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&PINB,
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&PINC,
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&PIND,
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&PINE,
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&PINF,
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&PING,
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&PINH,
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NOT_A_PIN,
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&PINJ,
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&PINK,
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&PINL,
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};
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const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
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// PORTLIST
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// -------------------------------------------
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PE , // PE 0 ** 0 ** USART0_RX
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PE , // PE 1 ** 1 ** USART0_TX
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PE , // PE 4 ** 2 ** PWM2
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PE , // PE 5 ** 3 ** PWM3
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PG , // PG 5 ** 4 ** PWM4
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PE , // PE 3 ** 5 ** PWM5
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PH , // PH 3 ** 6 ** PWM6
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PH , // PH 4 ** 7 ** PWM7
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PH , // PH 5 ** 8 ** PWM8
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PH , // PH 6 ** 9 ** PWM9
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PB , // PB 4 ** 10 ** PWM10
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PB , // PB 5 ** 11 ** PWM11
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PB , // PB 6 ** 12 ** PWM12
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PB , // PB 7 ** 13 ** PWM13
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PJ , // PJ 1 ** 14 ** USART3_TX
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PJ , // PJ 0 ** 15 ** USART3_RX
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PH , // PH 1 ** 16 ** USART2_TX
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PH , // PH 0 ** 17 ** USART2_RX
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PD , // PD 3 ** 18 ** USART1_TX
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PD , // PD 2 ** 19 ** USART1_RX
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PD , // PD 1 ** 20 ** I2C_SDA
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PD , // PD 0 ** 21 ** I2C_SCL
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PA , // PA 0 ** 22 ** D22
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PA , // PA 1 ** 23 ** D23
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PA , // PA 2 ** 24 ** D24
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PA , // PA 3 ** 25 ** D25
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PA , // PA 4 ** 26 ** D26
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PA , // PA 5 ** 27 ** D27
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PA , // PA 6 ** 28 ** D28
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PA , // PA 7 ** 29 ** D29
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PC , // PC 7 ** 30 ** D30
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PC , // PC 6 ** 31 ** D31
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PC , // PC 5 ** 32 ** D32
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PC , // PC 4 ** 33 ** D33
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PC , // PC 3 ** 34 ** D34
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PC , // PC 2 ** 35 ** D35
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PC , // PC 1 ** 36 ** D36
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PC , // PC 0 ** 37 ** D37
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PD , // PD 7 ** 38 ** D38
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PG , // PG 2 ** 39 ** D39
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PG , // PG 1 ** 40 ** D40
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PG , // PG 0 ** 41 ** D41
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PL , // PL 7 ** 42 ** D42
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PL , // PL 6 ** 43 ** D43
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PL , // PL 5 ** 44 ** D44
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PL , // PL 4 ** 45 ** D45
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PL , // PL 3 ** 46 ** D46
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PL , // PL 2 ** 47 ** D47
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PL , // PL 1 ** 48 ** D48
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PL , // PL 0 ** 49 ** D49
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PB , // PB 3 ** 50 ** SPI_MISO
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PB , // PB 2 ** 51 ** SPI_MOSI
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PB , // PB 1 ** 52 ** SPI_SCK
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PB , // PB 0 ** 53 ** SPI_SS
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PF , // PF 0 ** 54 ** A0
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PF , // PF 1 ** 55 ** A1
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PF , // PF 2 ** 56 ** A2
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PF , // PF 3 ** 57 ** A3
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PF , // PF 4 ** 58 ** A4
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PF , // PF 5 ** 59 ** A5
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PF , // PF 6 ** 60 ** A6
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PF , // PF 7 ** 61 ** A7
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PK , // PK 0 ** 62 ** A8
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PK , // PK 1 ** 63 ** A9
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PK , // PK 2 ** 64 ** A10
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PK , // PK 3 ** 65 ** A11
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PK , // PK 4 ** 66 ** A12
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PK , // PK 5 ** 67 ** A13
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PK , // PK 6 ** 68 ** A14
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PK , // PK 7 ** 69 ** A15
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};
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const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
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// PIN IN PORT
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// -------------------------------------------
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_BV( 0 ) , // PE 0 ** 0 ** USART0_RX
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_BV( 1 ) , // PE 1 ** 1 ** USART0_TX
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_BV( 4 ) , // PE 4 ** 2 ** PWM2
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_BV( 5 ) , // PE 5 ** 3 ** PWM3
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_BV( 5 ) , // PG 5 ** 4 ** PWM4
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_BV( 3 ) , // PE 3 ** 5 ** PWM5
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_BV( 3 ) , // PH 3 ** 6 ** PWM6
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_BV( 4 ) , // PH 4 ** 7 ** PWM7
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_BV( 5 ) , // PH 5 ** 8 ** PWM8
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_BV( 6 ) , // PH 6 ** 9 ** PWM9
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_BV( 4 ) , // PB 4 ** 10 ** PWM10
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_BV( 5 ) , // PB 5 ** 11 ** PWM11
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_BV( 6 ) , // PB 6 ** 12 ** PWM12
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_BV( 7 ) , // PB 7 ** 13 ** PWM13
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_BV( 1 ) , // PJ 1 ** 14 ** USART3_TX
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_BV( 0 ) , // PJ 0 ** 15 ** USART3_RX
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_BV( 1 ) , // PH 1 ** 16 ** USART2_TX
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_BV( 0 ) , // PH 0 ** 17 ** USART2_RX
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_BV( 3 ) , // PD 3 ** 18 ** USART1_TX
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_BV( 2 ) , // PD 2 ** 19 ** USART1_RX
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_BV( 1 ) , // PD 1 ** 20 ** I2C_SDA
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_BV( 0 ) , // PD 0 ** 21 ** I2C_SCL
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_BV( 0 ) , // PA 0 ** 22 ** D22
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_BV( 1 ) , // PA 1 ** 23 ** D23
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_BV( 2 ) , // PA 2 ** 24 ** D24
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_BV( 3 ) , // PA 3 ** 25 ** D25
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_BV( 4 ) , // PA 4 ** 26 ** D26
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_BV( 5 ) , // PA 5 ** 27 ** D27
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_BV( 6 ) , // PA 6 ** 28 ** D28
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_BV( 7 ) , // PA 7 ** 29 ** D29
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_BV( 7 ) , // PC 7 ** 30 ** D30
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_BV( 6 ) , // PC 6 ** 31 ** D31
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_BV( 5 ) , // PC 5 ** 32 ** D32
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_BV( 4 ) , // PC 4 ** 33 ** D33
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_BV( 3 ) , // PC 3 ** 34 ** D34
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_BV( 2 ) , // PC 2 ** 35 ** D35
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_BV( 1 ) , // PC 1 ** 36 ** D36
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_BV( 0 ) , // PC 0 ** 37 ** D37
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_BV( 7 ) , // PD 7 ** 38 ** D38
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_BV( 2 ) , // PG 2 ** 39 ** D39
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_BV( 1 ) , // PG 1 ** 40 ** D40
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_BV( 0 ) , // PG 0 ** 41 ** D41
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_BV( 7 ) , // PL 7 ** 42 ** D42
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_BV( 6 ) , // PL 6 ** 43 ** D43
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_BV( 5 ) , // PL 5 ** 44 ** D44
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_BV( 4 ) , // PL 4 ** 45 ** D45
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_BV( 3 ) , // PL 3 ** 46 ** D46
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_BV( 2 ) , // PL 2 ** 47 ** D47
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_BV( 1 ) , // PL 1 ** 48 ** D48
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_BV( 0 ) , // PL 0 ** 49 ** D49
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_BV( 3 ) , // PB 3 ** 50 ** SPI_MISO
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_BV( 2 ) , // PB 2 ** 51 ** SPI_MOSI
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_BV( 1 ) , // PB 1 ** 52 ** SPI_SCK
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_BV( 0 ) , // PB 0 ** 53 ** SPI_SS
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_BV( 0 ) , // PF 0 ** 54 ** A0
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_BV( 1 ) , // PF 1 ** 55 ** A1
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_BV( 2 ) , // PF 2 ** 56 ** A2
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_BV( 3 ) , // PF 3 ** 57 ** A3
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_BV( 4 ) , // PF 4 ** 58 ** A4
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_BV( 5 ) , // PF 5 ** 59 ** A5
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_BV( 6 ) , // PF 6 ** 60 ** A6
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_BV( 7 ) , // PF 7 ** 61 ** A7
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_BV( 0 ) , // PK 0 ** 62 ** A8
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_BV( 1 ) , // PK 1 ** 63 ** A9
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_BV( 2 ) , // PK 2 ** 64 ** A10
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_BV( 3 ) , // PK 3 ** 65 ** A11
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_BV( 4 ) , // PK 4 ** 66 ** A12
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_BV( 5 ) , // PK 5 ** 67 ** A13
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_BV( 6 ) , // PK 6 ** 68 ** A14
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_BV( 7 ) , // PK 7 ** 69 ** A15
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};
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const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
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// TIMERS
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// -------------------------------------------
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NOT_ON_TIMER , // PE 0 ** 0 ** USART0_RX
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NOT_ON_TIMER , // PE 1 ** 1 ** USART0_TX
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TIMER3B , // PE 4 ** 2 ** PWM2
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TIMER3C , // PE 5 ** 3 ** PWM3
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TIMER0B , // PG 5 ** 4 ** PWM4
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TIMER3A , // PE 3 ** 5 ** PWM5
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TIMER4A , // PH 3 ** 6 ** PWM6
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TIMER4B , // PH 4 ** 7 ** PWM7
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TIMER4C , // PH 5 ** 8 ** PWM8
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TIMER2B , // PH 6 ** 9 ** PWM9
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TIMER2A , // PB 4 ** 10 ** PWM10
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TIMER1A , // PB 5 ** 11 ** PWM11
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TIMER1B , // PB 6 ** 12 ** PWM12
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TIMER0A , // PB 7 ** 13 ** PWM13
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NOT_ON_TIMER , // PJ 1 ** 14 ** USART3_TX
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NOT_ON_TIMER , // PJ 0 ** 15 ** USART3_RX
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NOT_ON_TIMER , // PH 1 ** 16 ** USART2_TX
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NOT_ON_TIMER , // PH 0 ** 17 ** USART2_RX
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NOT_ON_TIMER , // PD 3 ** 18 ** USART1_TX
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NOT_ON_TIMER , // PD 2 ** 19 ** USART1_RX
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NOT_ON_TIMER , // PD 1 ** 20 ** I2C_SDA
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NOT_ON_TIMER , // PD 0 ** 21 ** I2C_SCL
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NOT_ON_TIMER , // PA 0 ** 22 ** D22
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NOT_ON_TIMER , // PA 1 ** 23 ** D23
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NOT_ON_TIMER , // PA 2 ** 24 ** D24
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NOT_ON_TIMER , // PA 3 ** 25 ** D25
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NOT_ON_TIMER , // PA 4 ** 26 ** D26
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NOT_ON_TIMER , // PA 5 ** 27 ** D27
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NOT_ON_TIMER , // PA 6 ** 28 ** D28
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NOT_ON_TIMER , // PA 7 ** 29 ** D29
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NOT_ON_TIMER , // PC 7 ** 30 ** D30
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NOT_ON_TIMER , // PC 6 ** 31 ** D31
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NOT_ON_TIMER , // PC 5 ** 32 ** D32
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NOT_ON_TIMER , // PC 4 ** 33 ** D33
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NOT_ON_TIMER , // PC 3 ** 34 ** D34
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NOT_ON_TIMER , // PC 2 ** 35 ** D35
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NOT_ON_TIMER , // PC 1 ** 36 ** D36
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NOT_ON_TIMER , // PC 0 ** 37 ** D37
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NOT_ON_TIMER , // PD 7 ** 38 ** D38
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NOT_ON_TIMER , // PG 2 ** 39 ** D39
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NOT_ON_TIMER , // PG 1 ** 40 ** D40
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NOT_ON_TIMER , // PG 0 ** 41 ** D41
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NOT_ON_TIMER , // PL 7 ** 42 ** D42
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NOT_ON_TIMER , // PL 6 ** 43 ** D43
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TIMER5C , // PL 5 ** 44 ** D44
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TIMER5B , // PL 4 ** 45 ** D45
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TIMER5A , // PL 3 ** 46 ** D46
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NOT_ON_TIMER , // PL 2 ** 47 ** D47
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NOT_ON_TIMER , // PL 1 ** 48 ** D48
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NOT_ON_TIMER , // PL 0 ** 49 ** D49
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NOT_ON_TIMER , // PB 3 ** 50 ** SPI_MISO
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NOT_ON_TIMER , // PB 2 ** 51 ** SPI_MOSI
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NOT_ON_TIMER , // PB 1 ** 52 ** SPI_SCK
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NOT_ON_TIMER , // PB 0 ** 53 ** SPI_SS
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NOT_ON_TIMER , // PF 0 ** 54 ** A0
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NOT_ON_TIMER , // PF 1 ** 55 ** A1
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NOT_ON_TIMER , // PF 2 ** 56 ** A2
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NOT_ON_TIMER , // PF 3 ** 57 ** A3
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NOT_ON_TIMER , // PF 4 ** 58 ** A4
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NOT_ON_TIMER , // PF 5 ** 59 ** A5
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NOT_ON_TIMER , // PF 6 ** 60 ** A6
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NOT_ON_TIMER , // PF 7 ** 61 ** A7
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NOT_ON_TIMER , // PK 0 ** 62 ** A8
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NOT_ON_TIMER , // PK 1 ** 63 ** A9
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NOT_ON_TIMER , // PK 2 ** 64 ** A10
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NOT_ON_TIMER , // PK 3 ** 65 ** A11
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NOT_ON_TIMER , // PK 4 ** 66 ** A12
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NOT_ON_TIMER , // PK 5 ** 67 ** A13
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NOT_ON_TIMER , // PK 6 ** 68 ** A14
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NOT_ON_TIMER , // PK 7 ** 69 ** A15
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};
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#else
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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 uint16_t PROGMEM port_to_mode_PGM[] = {
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NOT_A_PORT,
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NOT_A_PORT,
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&DDRB,
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&DDRC,
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&DDRD,
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};
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const uint16_t PROGMEM port_to_output_PGM[] = {
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NOT_A_PORT,
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NOT_A_PORT,
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&PORTB,
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&PORTC,
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&PORTD,
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};
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const uint16_t PROGMEM port_to_input_PGM[] = {
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NOT_A_PORT,
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NOT_A_PORT,
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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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PD, /* 0 */
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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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PB, /* 8 */
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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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PC, /* 14 */
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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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};
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const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
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_BV(0), /* 0, 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), /* 8, 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(0), /* 14, 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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};
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const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
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NOT_ON_TIMER, /* 0 - port D */
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NOT_ON_TIMER,
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NOT_ON_TIMER,
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// on the ATmega168, digital pin 3 has hardware pwm
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#if defined(__AVR_ATmega8__)
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NOT_ON_TIMER,
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#else
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TIMER2B,
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#endif
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NOT_ON_TIMER,
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// on the ATmega168, digital pins 5 and 6 have hardware pwm
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#if defined(__AVR_ATmega8__)
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NOT_ON_TIMER,
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NOT_ON_TIMER,
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#else
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TIMER0B,
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TIMER0A,
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#endif
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NOT_ON_TIMER,
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NOT_ON_TIMER, /* 8 - port B */
|
|
TIMER1A,
|
|
TIMER1B,
|
|
#if defined(__AVR_ATmega8__)
|
|
TIMER2,
|
|
#else
|
|
TIMER2A,
|
|
#endif
|
|
NOT_ON_TIMER,
|
|
NOT_ON_TIMER,
|
|
NOT_ON_TIMER,
|
|
NOT_ON_TIMER, /* 14 - port C */
|
|
NOT_ON_TIMER,
|
|
NOT_ON_TIMER,
|
|
NOT_ON_TIMER,
|
|
NOT_ON_TIMER,
|
|
};
|
|
#endif
|