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-rwxr-xr-x[-rw-r--r--]variants/mega/pins_arduino.h228
1 files changed, 165 insertions, 63 deletions
diff --git a/variants/mega/pins_arduino.h b/variants/mega/pins_arduino.h
index 237173a..62e10ad 100644..100755
--- a/variants/mega/pins_arduino.h
+++ b/variants/mega/pins_arduino.h
@@ -1,8 +1,8 @@
/*
- pins_arduino.h - Pin definition functions for Arduino
- Part of Arduino - http://www.arduino.cc/
+ pins_arduino.c - pin definitions for the Arduino board
+ Part of Arduino / Wiring Lite
- Copyright (c) 2007 David A. Mellis
+ 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
@@ -19,72 +19,66 @@
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
- $Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
+ $Id$
*/
-#ifndef Pins_Arduino_h
-#define Pins_Arduino_h
+#include <avr/io.h>
+#include "wiring_private.h"
+#include "pins_arduino.h"
-#include <avr/pgmspace.h>
+// On the Arduino board, digital pins are also used
+// for the analog output (software PWM). Analog input
+// pins are a separate set.
-#define NUM_DIGITAL_PINS 70
-#define NUM_ANALOG_INPUTS 16
-#define analogInputToDigitalPin(p) ((p < 16) ? (p) + 54 : -1)
-#define digitalPinHasPWM(p) (((p) >= 2 && (p) <= 13) || ((p) >= 44 && (p)<= 46))
+// ATMEL ATMEGA8 & 168 / ARDUINO
+//
+// +-\/-+
+// PC6 1| |28 PC5 (AI 5)
+// (D 0) PD0 2| |27 PC4 (AI 4)
+// (D 1) PD1 3| |26 PC3 (AI 3)
+// (D 2) PD2 4| |25 PC2 (AI 2)
+// PWM+ (D 3) PD3 5| |24 PC1 (AI 1)
+// (D 4) PD4 6| |23 PC0 (AI 0)
+// VCC 7| |22 GND
+// GND 8| |21 AREF
+// PB6 9| |20 AVCC
+// PB7 10| |19 PB5 (D 13)
+// PWM+ (D 5) PD5 11| |18 PB4 (D 12)
+// PWM+ (D 6) PD6 12| |17 PB3 (D 11) PWM
+// (D 7) PD7 13| |16 PB2 (D 10) PWM
+// (D 8) PB0 14| |15 PB1 (D 9) PWM
+// +----+
+//
+// (PWM+ indicates the additional PWM pins on the ATmega168.)
-const static uint8_t SS = 53;
-const static uint8_t MOSI = 51;
-const static uint8_t MISO = 50;
-const static uint8_t SCK = 52;
+// ATMEL ATMEGA1280 / ARDUINO
+//
+// 0-7 PE0-PE7 works
+// 8-13 PB0-PB5 works
+// 14-21 PA0-PA7 works
+// 22-29 PH0-PH7 works
+// 30-35 PG5-PG0 works
+// 36-43 PC7-PC0 works
+// 44-51 PJ7-PJ0 works
+// 52-59 PL7-PL0 works
+// 60-67 PD7-PD0 works
+// A0-A7 PF0-PF7
+// A8-A15 PK0-PK7
-const static uint8_t SDA = 20;
-const static uint8_t SCL = 21;
-const static uint8_t LED = 13;
+#define PA 1
+#define PB 2
+#define PC 3
+#define PD 4
+#define PE 5
+#define PF 6
+#define PG 7
+#define PH 8
+#define PJ 10
+#define PK 11
+#define PL 12
-const static uint8_t A0 = 54;
-const static uint8_t A1 = 55;
-const static uint8_t A2 = 56;
-const static uint8_t A3 = 57;
-const static uint8_t A4 = 58;
-const static uint8_t A5 = 59;
-const static uint8_t A6 = 60;
-const static uint8_t A7 = 61;
-const static uint8_t A8 = 62;
-const static uint8_t A9 = 63;
-const static uint8_t A10 = 64;
-const static uint8_t A11 = 65;
-const static uint8_t A12 = 66;
-const static uint8_t A13 = 67;
-const static uint8_t A14 = 68;
-const static uint8_t A15 = 69;
-
-// A majority of the pins are NOT PCINTs, SO BE WARNED (i.e. you cannot use them as receive pins)
-// Only pins available for RECEIVE (TRANSMIT can be on any pin):
-// (I've deliberately left out pin mapping to the Hardware USARTs - seems senseless to me)
-// Pins: 10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69
-
-#define digitalPinToPCICR(p) ( (((p) >= 10) && ((p) <= 13)) || \
- (((p) >= 50) && ((p) <= 53)) || \
- (((p) >= 62) && ((p) <= 69)) ? (&PCICR) : ((uint8_t *)0) )
-
-#define digitalPinToPCICRbit(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? 0 : \
- ( (((p) >= 62) && ((p) <= 69)) ? 2 : \
- 0 ) )
-
-#define digitalPinToPCMSK(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? (&PCMSK0) : \
- ( (((p) >= 62) && ((p) <= 69)) ? (&PCMSK2) : \
- ((uint8_t *)0) ) )
-
-#define digitalPinToPCMSKbit(p) ( (((p) >= 10) && ((p) <= 13)) ? ((p) - 6) : \
- ( ((p) == 50) ? 3 : \
- ( ((p) == 51) ? 2 : \
- ( ((p) == 52) ? 1 : \
- ( ((p) == 53) ? 0 : \
- ( (((p) >= 62) && ((p) <= 69)) ? ((p) - 62) : \
- 0 ) ) ) ) ) )
-
-#ifdef ARDUINO_MAIN
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
const uint16_t PROGMEM port_to_mode_PGM[] = {
NOT_A_PORT,
(uint16_t) &DDRA,
@@ -357,7 +351,115 @@ const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
NOT_ON_TIMER , // PK 6 ** 68 ** A14
NOT_ON_TIMER , // PK 7 ** 69 ** A15
};
+#else
+// these arrays map port names (e.g. port B) to the
+// appropriate addresses for various functions (e.g. reading
+// and writing)
+const uint16_t PROGMEM port_to_mode_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &DDRB,
+ (uint16_t) &DDRC,
+ (uint16_t) &DDRD,
+};
-#endif
+const uint16_t PROGMEM port_to_output_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &PORTB,
+ (uint16_t) &PORTC,
+ (uint16_t) &PORTD,
+};
-#endif \ No newline at end of file
+const uint16_t PROGMEM port_to_input_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &PINB,
+ (uint16_t) &PINC,
+ (uint16_t) &PIND,
+};
+
+const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
+ PD, /* 0 */
+ PD,
+ PD,
+ PD,
+ PD,
+ PD,
+ PD,
+ PD,
+ PB, /* 8 */
+ PB,
+ PB,
+ PB,
+ PB,
+ PB,
+ PC, /* 14 */
+ PC,
+ PC,
+ PC,
+ PC,
+ PC,
+};
+
+const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
+ _BV(0), /* 0, port D */
+ _BV(1),
+ _BV(2),
+ _BV(3),
+ _BV(4),
+ _BV(5),
+ _BV(6),
+ _BV(7),
+ _BV(0), /* 8, port B */
+ _BV(1),
+ _BV(2),
+ _BV(3),
+ _BV(4),
+ _BV(5),
+ _BV(0), /* 14, port C */
+ _BV(1),
+ _BV(2),
+ _BV(3),
+ _BV(4),
+ _BV(5),
+};
+
+const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
+ NOT_ON_TIMER, /* 0 - port D */
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ // on the ATmega168, digital pin 3 has hardware pwm
+#if defined(__AVR_ATmega8__)
+ NOT_ON_TIMER,
+#else
+ TIMER2B,
+#endif
+ NOT_ON_TIMER,
+ // on the ATmega168, digital pins 5 and 6 have hardware pwm
+#if defined(__AVR_ATmega8__)
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+#else
+ TIMER0B,
+ TIMER0A,
+#endif
+ NOT_ON_TIMER,
+ 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
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