From 5e855e95761b936ddba1c964c329c15219f59afd Mon Sep 17 00:00:00 2001 From: Christian Pointner Date: Tue, 3 May 2016 19:44:47 +0200 Subject: added external lib PJON - not working yet.. --- lib/Arduino.h | 78 ++++-- lib/arduino-binary.h | 534 +++++++++++++++++++++++++++++++++++++++ lib/arduino-pins/leonardo.h | 369 +++++++++++++++++++++++++++ lib/arduino-pins/standard.h | 236 ++++++++++++++++++ lib/arduino-stub.cpp | 594 +++++++++++++++++++++++++++++++++++++++++--- 5 files changed, 1752 insertions(+), 59 deletions(-) create mode 100644 lib/arduino-binary.h create mode 100644 lib/arduino-pins/leonardo.h create mode 100644 lib/arduino-pins/standard.h (limited to 'lib') diff --git a/lib/Arduino.h b/lib/Arduino.h index 4b3026b..ce50ea8 100644 --- a/lib/Arduino.h +++ b/lib/Arduino.h @@ -26,6 +26,7 @@ #define Arduino_h #include +#include #include #include @@ -33,10 +34,14 @@ #include #include +#include "arduino-binary.h" + #ifdef __cplusplus extern "C"{ #endif +void yield(void); + #define HIGH 0x1 #define LOW 0x0 @@ -44,14 +49,12 @@ extern "C"{ #define OUTPUT 0x1 #define INPUT_PULLUP 0x2 -#define true 0x1 -#define false 0x0 - #define PI 3.1415926535897932384626433832795 #define HALF_PI 1.5707963267948966192313216916398 #define TWO_PI 6.283185307179586476925286766559 #define DEG_TO_RAD 0.017453292519943295769236907684886 #define RAD_TO_DEG 57.295779513082320876798154814105 +#define EULER 2.718281828459045235360287471352 #define SERIAL 0x0 #define DISPLAY 0x1 @@ -107,28 +110,35 @@ extern "C"{ #define bitClear(value, bit) ((value) &= ~(1UL << (bit))) #define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit)) +// avr-libc defines _NOP() since 1.6.2 +#ifndef _NOP +#define _NOP() do { __asm__ volatile ("nop"); } while (0) +#endif typedef unsigned int word; #define bit(b) (1UL << (b)) -typedef uint8_t boolean; +typedef bool boolean; typedef uint8_t byte; void init(void); +int atexit(void (*func)()) __attribute__((weak)); + void pinMode(uint8_t, uint8_t); void digitalWrite(uint8_t, uint8_t); -//int digitalRead(uint8_t); -//int analogRead(uint8_t); -//void analogReference(uint8_t mode); -//void analogWrite(uint8_t, int); +int digitalRead(uint8_t); +int analogRead(uint8_t); +void analogReference(uint8_t mode); +void analogWrite(uint8_t, int); unsigned long millis(void); unsigned long micros(void); void delay(unsigned long); void delayMicroseconds(unsigned int us); // unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout); +// unsigned long pulseInLong(uint8_t pin, uint8_t state, unsigned long timeout); // void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val); // uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder); @@ -148,7 +158,7 @@ extern const uint16_t PROGMEM port_to_input_PGM[]; extern const uint16_t PROGMEM port_to_output_PGM[]; extern const uint8_t PROGMEM digital_pin_to_port_PGM[]; -extern const uint8_t PROGMEM digital_pin_to_bit_PGM[]; +// extern const uint8_t PROGMEM digital_pin_to_bit_PGM[]; extern const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[]; extern const uint8_t PROGMEM digital_pin_to_timer_PGM[]; @@ -168,6 +178,8 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[]; #define NOT_A_PIN 0 #define NOT_A_PORT 0 +#define NOT_AN_INTERRUPT -1 + #ifdef ARDUINO_MAIN #define PA 1 #define PB 2 @@ -187,26 +199,44 @@ extern const uint8_t PROGMEM digital_pin_to_timer_PGM[]; #define TIMER0B 2 #define TIMER1A 3 #define TIMER1B 4 -#define TIMER2 5 -#define TIMER2A 6 -#define TIMER2B 7 - -#define TIMER3A 8 -#define TIMER3B 9 -#define TIMER3C 10 -#define TIMER4A 11 -#define TIMER4B 12 -#define TIMER4C 13 -#define TIMER4D 14 -#define TIMER5A 15 -#define TIMER5B 16 -#define TIMER5C 17 +#define TIMER1C 5 +#define TIMER2 6 +#define TIMER2A 7 +#define TIMER2B 8 + +#define TIMER3A 9 +#define TIMER3B 10 +#define TIMER3C 11 +#define TIMER4A 12 +#define TIMER4B 13 +#define TIMER4C 14 +#define TIMER4D 15 +#define TIMER5A 16 +#define TIMER5B 17 +#define TIMER5C 18 #ifdef __cplusplus } // extern "C" #endif -// #include "pins_arduino.h" +uint16_t makeWord(uint16_t w); +uint16_t makeWord(byte h, byte l); + +#define word(...) makeWord(__VA_ARGS__) + +// WMath prototypes +long random(long); +long random(long, long); +void randomSeed(unsigned long); +long map(long, long, long, long, long); + +#if ARDUINO_BOARD == standard +#include "arduino-pins/standard.h" +#elif ARDUINO_BOARD == leonardo +#include "arduino-pins/leonardo.h" +#endif + +// this is from spreadspace utils to run call arduino's init function void arduino_init(void); #endif diff --git a/lib/arduino-binary.h b/lib/arduino-binary.h new file mode 100644 index 0000000..aec4c73 --- /dev/null +++ b/lib/arduino-binary.h @@ -0,0 +1,534 @@ +/* + binary.h - Definitions for binary constants + Copyright (c) 2006 David A. Mellis. All right reserved. + + 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +*/ + +#ifndef Binary_h +#define Binary_h + +#define B0 0 +#define B00 0 +#define B000 0 +#define B0000 0 +#define B00000 0 +#define B000000 0 +#define B0000000 0 +#define B00000000 0 +#define B1 1 +#define B01 1 +#define B001 1 +#define B0001 1 +#define B00001 1 +#define B000001 1 +#define B0000001 1 +#define B00000001 1 +#define B10 2 +#define B010 2 +#define B0010 2 +#define B00010 2 +#define B000010 2 +#define B0000010 2 +#define B00000010 2 +#define B11 3 +#define B011 3 +#define B0011 3 +#define B00011 3 +#define B000011 3 +#define B0000011 3 +#define B00000011 3 +#define B100 4 +#define B0100 4 +#define B00100 4 +#define B000100 4 +#define B0000100 4 +#define B00000100 4 +#define B101 5 +#define B0101 5 +#define B00101 5 +#define B000101 5 +#define B0000101 5 +#define B00000101 5 +#define B110 6 +#define B0110 6 +#define B00110 6 +#define B000110 6 +#define B0000110 6 +#define B00000110 6 +#define B111 7 +#define B0111 7 +#define B00111 7 +#define B000111 7 +#define B0000111 7 +#define B00000111 7 +#define B1000 8 +#define B01000 8 +#define B001000 8 +#define B0001000 8 +#define B00001000 8 +#define B1001 9 +#define B01001 9 +#define B001001 9 +#define B0001001 9 +#define B00001001 9 +#define B1010 10 +#define B01010 10 +#define B001010 10 +#define B0001010 10 +#define B00001010 10 +#define B1011 11 +#define B01011 11 +#define B001011 11 +#define B0001011 11 +#define B00001011 11 +#define B1100 12 +#define B01100 12 +#define B001100 12 +#define B0001100 12 +#define B00001100 12 +#define B1101 13 +#define B01101 13 +#define B001101 13 +#define B0001101 13 +#define B00001101 13 +#define B1110 14 +#define B01110 14 +#define B001110 14 +#define B0001110 14 +#define B00001110 14 +#define B1111 15 +#define B01111 15 +#define B001111 15 +#define B0001111 15 +#define B00001111 15 +#define B10000 16 +#define B010000 16 +#define B0010000 16 +#define B00010000 16 +#define B10001 17 +#define B010001 17 +#define B0010001 17 +#define B00010001 17 +#define B10010 18 +#define B010010 18 +#define B0010010 18 +#define B00010010 18 +#define B10011 19 +#define B010011 19 +#define B0010011 19 +#define B00010011 19 +#define B10100 20 +#define B010100 20 +#define B0010100 20 +#define B00010100 20 +#define B10101 21 +#define B010101 21 +#define B0010101 21 +#define B00010101 21 +#define B10110 22 +#define B010110 22 +#define B0010110 22 +#define B00010110 22 +#define B10111 23 +#define B010111 23 +#define B0010111 23 +#define B00010111 23 +#define B11000 24 +#define B011000 24 +#define B0011000 24 +#define B00011000 24 +#define B11001 25 +#define B011001 25 +#define B0011001 25 +#define B00011001 25 +#define B11010 26 +#define B011010 26 +#define B0011010 26 +#define B00011010 26 +#define B11011 27 +#define B011011 27 +#define B0011011 27 +#define B00011011 27 +#define B11100 28 +#define B011100 28 +#define B0011100 28 +#define B00011100 28 +#define B11101 29 +#define B011101 29 +#define B0011101 29 +#define B00011101 29 +#define B11110 30 +#define B011110 30 +#define B0011110 30 +#define B00011110 30 +#define B11111 31 +#define B011111 31 +#define B0011111 31 +#define B00011111 31 +#define B100000 32 +#define B0100000 32 +#define B00100000 32 +#define B100001 33 +#define B0100001 33 +#define B00100001 33 +#define B100010 34 +#define B0100010 34 +#define B00100010 34 +#define B100011 35 +#define B0100011 35 +#define B00100011 35 +#define B100100 36 +#define B0100100 36 +#define B00100100 36 +#define B100101 37 +#define B0100101 37 +#define B00100101 37 +#define B100110 38 +#define B0100110 38 +#define B00100110 38 +#define B100111 39 +#define B0100111 39 +#define B00100111 39 +#define B101000 40 +#define B0101000 40 +#define B00101000 40 +#define B101001 41 +#define B0101001 41 +#define B00101001 41 +#define B101010 42 +#define B0101010 42 +#define B00101010 42 +#define B101011 43 +#define B0101011 43 +#define B00101011 43 +#define B101100 44 +#define B0101100 44 +#define B00101100 44 +#define B101101 45 +#define B0101101 45 +#define B00101101 45 +#define B101110 46 +#define B0101110 46 +#define B00101110 46 +#define B101111 47 +#define B0101111 47 +#define B00101111 47 +#define B110000 48 +#define B0110000 48 +#define B00110000 48 +#define B110001 49 +#define B0110001 49 +#define B00110001 49 +#define B110010 50 +#define B0110010 50 +#define B00110010 50 +#define B110011 51 +#define B0110011 51 +#define B00110011 51 +#define B110100 52 +#define B0110100 52 +#define B00110100 52 +#define B110101 53 +#define B0110101 53 +#define B00110101 53 +#define B110110 54 +#define B0110110 54 +#define B00110110 54 +#define B110111 55 +#define B0110111 55 +#define B00110111 55 +#define B111000 56 +#define B0111000 56 +#define B00111000 56 +#define B111001 57 +#define B0111001 57 +#define B00111001 57 +#define B111010 58 +#define B0111010 58 +#define B00111010 58 +#define B111011 59 +#define B0111011 59 +#define B00111011 59 +#define B111100 60 +#define B0111100 60 +#define B00111100 60 +#define B111101 61 +#define B0111101 61 +#define B00111101 61 +#define B111110 62 +#define B0111110 62 +#define B00111110 62 +#define B111111 63 +#define B0111111 63 +#define B00111111 63 +#define B1000000 64 +#define B01000000 64 +#define B1000001 65 +#define B01000001 65 +#define B1000010 66 +#define B01000010 66 +#define B1000011 67 +#define B01000011 67 +#define B1000100 68 +#define B01000100 68 +#define B1000101 69 +#define B01000101 69 +#define B1000110 70 +#define B01000110 70 +#define B1000111 71 +#define B01000111 71 +#define B1001000 72 +#define B01001000 72 +#define B1001001 73 +#define B01001001 73 +#define B1001010 74 +#define B01001010 74 +#define B1001011 75 +#define B01001011 75 +#define B1001100 76 +#define B01001100 76 +#define B1001101 77 +#define B01001101 77 +#define B1001110 78 +#define B01001110 78 +#define B1001111 79 +#define B01001111 79 +#define B1010000 80 +#define B01010000 80 +#define B1010001 81 +#define B01010001 81 +#define B1010010 82 +#define B01010010 82 +#define B1010011 83 +#define B01010011 83 +#define B1010100 84 +#define B01010100 84 +#define B1010101 85 +#define B01010101 85 +#define B1010110 86 +#define B01010110 86 +#define B1010111 87 +#define B01010111 87 +#define B1011000 88 +#define B01011000 88 +#define B1011001 89 +#define B01011001 89 +#define B1011010 90 +#define B01011010 90 +#define B1011011 91 +#define B01011011 91 +#define B1011100 92 +#define B01011100 92 +#define B1011101 93 +#define B01011101 93 +#define B1011110 94 +#define B01011110 94 +#define B1011111 95 +#define B01011111 95 +#define B1100000 96 +#define B01100000 96 +#define B1100001 97 +#define B01100001 97 +#define B1100010 98 +#define B01100010 98 +#define B1100011 99 +#define B01100011 99 +#define B1100100 100 +#define B01100100 100 +#define B1100101 101 +#define B01100101 101 +#define B1100110 102 +#define B01100110 102 +#define B1100111 103 +#define B01100111 103 +#define B1101000 104 +#define B01101000 104 +#define B1101001 105 +#define B01101001 105 +#define B1101010 106 +#define B01101010 106 +#define B1101011 107 +#define B01101011 107 +#define B1101100 108 +#define B01101100 108 +#define B1101101 109 +#define B01101101 109 +#define B1101110 110 +#define B01101110 110 +#define B1101111 111 +#define B01101111 111 +#define B1110000 112 +#define B01110000 112 +#define B1110001 113 +#define B01110001 113 +#define B1110010 114 +#define B01110010 114 +#define B1110011 115 +#define B01110011 115 +#define B1110100 116 +#define B01110100 116 +#define B1110101 117 +#define B01110101 117 +#define B1110110 118 +#define B01110110 118 +#define B1110111 119 +#define B01110111 119 +#define B1111000 120 +#define B01111000 120 +#define B1111001 121 +#define B01111001 121 +#define B1111010 122 +#define B01111010 122 +#define B1111011 123 +#define B01111011 123 +#define B1111100 124 +#define B01111100 124 +#define B1111101 125 +#define B01111101 125 +#define B1111110 126 +#define B01111110 126 +#define B1111111 127 +#define B01111111 127 +#define B10000000 128 +#define B10000001 129 +#define B10000010 130 +#define B10000011 131 +#define B10000100 132 +#define B10000101 133 +#define B10000110 134 +#define B10000111 135 +#define B10001000 136 +#define B10001001 137 +#define B10001010 138 +#define B10001011 139 +#define B10001100 140 +#define B10001101 141 +#define B10001110 142 +#define B10001111 143 +#define B10010000 144 +#define B10010001 145 +#define B10010010 146 +#define B10010011 147 +#define B10010100 148 +#define B10010101 149 +#define B10010110 150 +#define B10010111 151 +#define B10011000 152 +#define B10011001 153 +#define B10011010 154 +#define B10011011 155 +#define B10011100 156 +#define B10011101 157 +#define B10011110 158 +#define B10011111 159 +#define B10100000 160 +#define B10100001 161 +#define B10100010 162 +#define B10100011 163 +#define B10100100 164 +#define B10100101 165 +#define B10100110 166 +#define B10100111 167 +#define B10101000 168 +#define B10101001 169 +#define B10101010 170 +#define B10101011 171 +#define B10101100 172 +#define B10101101 173 +#define B10101110 174 +#define B10101111 175 +#define B10110000 176 +#define B10110001 177 +#define B10110010 178 +#define B10110011 179 +#define B10110100 180 +#define B10110101 181 +#define B10110110 182 +#define B10110111 183 +#define B10111000 184 +#define B10111001 185 +#define B10111010 186 +#define B10111011 187 +#define B10111100 188 +#define B10111101 189 +#define B10111110 190 +#define B10111111 191 +#define B11000000 192 +#define B11000001 193 +#define B11000010 194 +#define B11000011 195 +#define B11000100 196 +#define B11000101 197 +#define B11000110 198 +#define B11000111 199 +#define B11001000 200 +#define B11001001 201 +#define B11001010 202 +#define B11001011 203 +#define B11001100 204 +#define B11001101 205 +#define B11001110 206 +#define B11001111 207 +#define B11010000 208 +#define B11010001 209 +#define B11010010 210 +#define B11010011 211 +#define B11010100 212 +#define B11010101 213 +#define B11010110 214 +#define B11010111 215 +#define B11011000 216 +#define B11011001 217 +#define B11011010 218 +#define B11011011 219 +#define B11011100 220 +#define B11011101 221 +#define B11011110 222 +#define B11011111 223 +#define B11100000 224 +#define B11100001 225 +#define B11100010 226 +#define B11100011 227 +#define B11100100 228 +#define B11100101 229 +#define B11100110 230 +#define B11100111 231 +#define B11101000 232 +#define B11101001 233 +#define B11101010 234 +#define B11101011 235 +#define B11101100 236 +#define B11101101 237 +#define B11101110 238 +#define B11101111 239 +#define B11110000 240 +#define B11110001 241 +#define B11110010 242 +#define B11110011 243 +#define B11110100 244 +#define B11110101 245 +#define B11110110 246 +#define B11110111 247 +#define B11111000 248 +#define B11111001 249 +#define B11111010 250 +#define B11111011 251 +#define B11111100 252 +#define B11111101 253 +#define B11111110 254 +#define B11111111 255 + +#endif diff --git a/lib/arduino-pins/leonardo.h b/lib/arduino-pins/leonardo.h new file mode 100644 index 0000000..6027223 --- /dev/null +++ b/lib/arduino-pins/leonardo.h @@ -0,0 +1,369 @@ +/* + pins_arduino.h - Pin definition functions for Arduino + Part of Arduino - http://www.arduino.cc/ + + Copyright (c) 2007 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 +*/ + +#ifndef Pins_Arduino_h +#define Pins_Arduino_h + +#include + +// Workaround for wrong definitions in "iom32u4.h". +// This should be fixed in the AVR toolchain. +#undef UHCON +#undef UHINT +#undef UHIEN +#undef UHADDR +#undef UHFNUM +#undef UHFNUML +#undef UHFNUMH +#undef UHFLEN +#undef UPINRQX +#undef UPINTX +#undef UPNUM +#undef UPRST +#undef UPCONX +#undef UPCFG0X +#undef UPCFG1X +#undef UPSTAX +#undef UPCFG2X +#undef UPIENX +#undef UPDATX +#undef TCCR2A +#undef WGM20 +#undef WGM21 +#undef COM2B0 +#undef COM2B1 +#undef COM2A0 +#undef COM2A1 +#undef TCCR2B +#undef CS20 +#undef CS21 +#undef CS22 +#undef WGM22 +#undef FOC2B +#undef FOC2A +#undef TCNT2 +#undef TCNT2_0 +#undef TCNT2_1 +#undef TCNT2_2 +#undef TCNT2_3 +#undef TCNT2_4 +#undef TCNT2_5 +#undef TCNT2_6 +#undef TCNT2_7 +#undef OCR2A +#undef OCR2_0 +#undef OCR2_1 +#undef OCR2_2 +#undef OCR2_3 +#undef OCR2_4 +#undef OCR2_5 +#undef OCR2_6 +#undef OCR2_7 +#undef OCR2B +#undef OCR2_0 +#undef OCR2_1 +#undef OCR2_2 +#undef OCR2_3 +#undef OCR2_4 +#undef OCR2_5 +#undef OCR2_6 +#undef OCR2_7 + +#define NUM_DIGITAL_PINS 31 +#define NUM_ANALOG_INPUTS 12 + +#define TX_RX_LED_INIT DDRD |= (1<<5), DDRB |= (1<<0) +#define TXLED0 PORTD |= (1<<5) +#define TXLED1 PORTD &= ~(1<<5) +#define RXLED0 PORTB |= (1<<0) +#define RXLED1 PORTB &= ~(1<<0) + +static const uint8_t SDA = 2; +static const uint8_t SCL = 3; +#define LED_BUILTIN 13 +#define LED_BUILTIN_RX 17 +#define LED_BUILTIN_TX 30 + +// Map SPI port to 'new' pins D14..D17 +static const uint8_t SS = 17; +static const uint8_t MOSI = 16; +static const uint8_t MISO = 14; +static const uint8_t SCK = 15; + +// Mapping of analog pins as digital I/O +// A6-A11 share with digital pins +static const uint8_t A0 = 18; +static const uint8_t A1 = 19; +static const uint8_t A2 = 20; +static const uint8_t A3 = 21; +static const uint8_t A4 = 22; +static const uint8_t A5 = 23; +static const uint8_t A6 = 24; // D4 +static const uint8_t A7 = 25; // D6 +static const uint8_t A8 = 26; // D8 +static const uint8_t A9 = 27; // D9 +static const uint8_t A10 = 28; // D10 +static const uint8_t A11 = 29; // D12 + +#define digitalPinToPCICR(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCICR) : ((uint8_t *)0)) +#define digitalPinToPCICRbit(p) 0 +#define digitalPinToPCMSK(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCMSK0) : ((uint8_t *)0)) +#define digitalPinToPCMSKbit(p) ( ((p) >= 8 && (p) <= 11) ? (p) - 4 : ((p) == 14 ? 3 : ((p) == 15 ? 1 : ((p) == 16 ? 2 : ((p) == 17 ? 0 : (p - A8 + 4)))))) + +// __AVR_ATmega32U4__ has an unusual mapping of pins to channels +extern const uint8_t PROGMEM analog_pin_to_channel_PGM[]; +#define analogPinToChannel(P) ( pgm_read_byte( analog_pin_to_channel_PGM + (P) ) ) + +#define digitalPinHasPWM(p) ((p) == 3 || (p) == 5 || (p) == 6 || (p) == 9 || (p) == 10 || (p) == 11 || (p) == 13) + +#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT))))) + +#ifdef ARDUINO_MAIN + +// On the Arduino board, digital pins are also used +// for the analog output (software PWM). Analog input +// pins are a separate set. + +// ATMEL ATMEGA32U4 / ARDUINO LEONARDO +// +// D0 PD2 RXD1/INT2 +// D1 PD3 TXD1/INT3 +// D2 PD1 SDA SDA/INT1 +// D3# PD0 PWM8/SCL OC0B/SCL/INT0 +// D4 A6 PD4 ADC8 +// D5# PC6 ??? OC3A/#OC4A +// D6# A7 PD7 FastPWM #OC4D/ADC10 +// D7 PE6 INT6/AIN0 +// +// D8 A8 PB4 ADC11/PCINT4 +// D9# A9 PB5 PWM16 OC1A/#OC4B/ADC12/PCINT5 +// D10# A10 PB6 PWM16 OC1B/0c4B/ADC13/PCINT6 +// D11# PB7 PWM8/16 0C0A/OC1C/#RTS/PCINT7 +// D12 A11 PD6 T1/#OC4D/ADC9 +// D13# PC7 PWM10 CLK0/OC4A +// +// A0 D18 PF7 ADC7 +// A1 D19 PF6 ADC6 +// A2 D20 PF5 ADC5 +// A3 D21 PF4 ADC4 +// A4 D22 PF1 ADC1 +// A5 D23 PF0 ADC0 +// +// New pins D14..D17 to map SPI port to digital pins +// +// MISO D14 PB3 MISO,PCINT3 +// SCK D15 PB1 SCK,PCINT1 +// MOSI D16 PB2 MOSI,PCINT2 +// SS D17 PB0 RXLED,SS/PCINT0 +// +// TXLED D30 PD5 XCK1 +// RXLED D17 PB0 +// HWB PE2 HWB + +// 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, + (uint16_t) &DDRE, + (uint16_t) &DDRF, +}; + +const uint16_t PROGMEM port_to_output_PGM[] = { + NOT_A_PORT, + NOT_A_PORT, + (uint16_t) &PORTB, + (uint16_t) &PORTC, + (uint16_t) &PORTD, + (uint16_t) &PORTE, + (uint16_t) &PORTF, +}; + +const uint16_t PROGMEM port_to_input_PGM[] = { + NOT_A_PORT, + NOT_A_PORT, + (uint16_t) &PINB, + (uint16_t) &PINC, + (uint16_t) &PIND, + (uint16_t) &PINE, + (uint16_t) &PINF, +}; + +const uint8_t PROGMEM digital_pin_to_port_PGM[] = { + PD, // D0 - PD2 + PD, // D1 - PD3 + PD, // D2 - PD1 + PD, // D3 - PD0 + PD, // D4 - PD4 + PC, // D5 - PC6 + PD, // D6 - PD7 + PE, // D7 - PE6 + + PB, // D8 - PB4 + PB, // D9 - PB5 + PB, // D10 - PB6 + PB, // D11 - PB7 + PD, // D12 - PD6 + PC, // D13 - PC7 + + PB, // D14 - MISO - PB3 + PB, // D15 - SCK - PB1 + PB, // D16 - MOSI - PB2 + PB, // D17 - SS - PB0 + + PF, // D18 - A0 - PF7 + PF, // D19 - A1 - PF6 + PF, // D20 - A2 - PF5 + PF, // D21 - A3 - PF4 + PF, // D22 - A4 - PF1 + PF, // D23 - A5 - PF0 + + PD, // D24 / D4 - A6 - PD4 + PD, // D25 / D6 - A7 - PD7 + PB, // D26 / D8 - A8 - PB4 + PB, // D27 / D9 - A9 - PB5 + PB, // D28 / D10 - A10 - PB6 + PD, // D29 / D12 - A11 - PD6 + PD, // D30 / TX Led - PD5 +}; + +const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = { + _BV(2), // D0 - PD2 + _BV(3), // D1 - PD3 + _BV(1), // D2 - PD1 + _BV(0), // D3 - PD0 + _BV(4), // D4 - PD4 + _BV(6), // D5 - PC6 + _BV(7), // D6 - PD7 + _BV(6), // D7 - PE6 + + _BV(4), // D8 - PB4 + _BV(5), // D9 - PB5 + _BV(6), // D10 - PB6 + _BV(7), // D11 - PB7 + _BV(6), // D12 - PD6 + _BV(7), // D13 - PC7 + + _BV(3), // D14 - MISO - PB3 + _BV(1), // D15 - SCK - PB1 + _BV(2), // D16 - MOSI - PB2 + _BV(0), // D17 - SS - PB0 + + _BV(7), // D18 - A0 - PF7 + _BV(6), // D19 - A1 - PF6 + _BV(5), // D20 - A2 - PF5 + _BV(4), // D21 - A3 - PF4 + _BV(1), // D22 - A4 - PF1 + _BV(0), // D23 - A5 - PF0 + + _BV(4), // D24 / D4 - A6 - PD4 + _BV(7), // D25 / D6 - A7 - PD7 + _BV(4), // D26 / D8 - A8 - PB4 + _BV(5), // D27 / D9 - A9 - PB5 + _BV(6), // D28 / D10 - A10 - PB6 + _BV(6), // D29 / D12 - A11 - PD6 + _BV(5), // D30 / TX Led - PD5 +}; + +const uint8_t PROGMEM digital_pin_to_timer_PGM[] = { + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + TIMER0B, /* 3 */ + NOT_ON_TIMER, + TIMER3A, /* 5 */ + TIMER4D, /* 6 */ + NOT_ON_TIMER, + + NOT_ON_TIMER, + TIMER1A, /* 9 */ + TIMER1B, /* 10 */ + TIMER0A, /* 11 */ + + NOT_ON_TIMER, + TIMER4A, /* 13 */ + + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, + NOT_ON_TIMER, +}; + +const uint8_t PROGMEM analog_pin_to_channel_PGM[] = { + 7, // A0 PF7 ADC7 + 6, // A1 PF6 ADC6 + 5, // A2 PF5 ADC5 + 4, // A3 PF4 ADC4 + 1, // A4 PF1 ADC1 + 0, // A5 PF0 ADC0 + 8, // A6 D4 PD4 ADC8 + 10, // A7 D6 PD7 ADC10 + 11, // A8 D8 PB4 ADC11 + 12, // A9 D9 PB5 ADC12 + 13, // A10 D10 PB6 ADC13 + 9 // A11 D12 PD6 ADC9 +}; + +#endif /* ARDUINO_MAIN */ + +// These serial port names are intended to allow libraries and architecture-neutral +// sketches to automatically default to the correct port name for a particular type +// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN, +// the first hardware serial port whose RX/TX pins are not dedicated to another use. +// +// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor +// +// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial +// +// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library +// +// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins. +// +// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX +// pins are NOT connected to anything by default. +#define SERIAL_PORT_MONITOR Serial +#define SERIAL_PORT_USBVIRTUAL Serial +#define SERIAL_PORT_HARDWARE Serial1 +#define SERIAL_PORT_HARDWARE_OPEN Serial1 + +// Alias SerialUSB to Serial +#define SerialUSB SERIAL_PORT_USBVIRTUAL + +#endif /* Pins_Arduino_h */ diff --git a/lib/arduino-pins/standard.h b/lib/arduino-pins/standard.h new file mode 100644 index 0000000..a3f349e --- /dev/null +++ b/lib/arduino-pins/standard.h @@ -0,0 +1,236 @@ +/* + pins_arduino.h - Pin definition functions for Arduino + Part of Arduino - http://www.arduino.cc/ + + Copyright (c) 2007 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 +*/ + +#ifndef Pins_Arduino_h +#define Pins_Arduino_h + +#include + +#define NUM_DIGITAL_PINS 20 +#define NUM_ANALOG_INPUTS 6 +#define analogInputToDigitalPin(p) ((p < 6) ? (p) + 14 : -1) + +#if defined(__AVR_ATmega8__) +#define digitalPinHasPWM(p) ((p) == 9 || (p) == 10 || (p) == 11) +#else +#define digitalPinHasPWM(p) ((p) == 3 || (p) == 5 || (p) == 6 || (p) == 9 || (p) == 10 || (p) == 11) +#endif + +static const uint8_t SS = 10; +static const uint8_t MOSI = 11; +static const uint8_t MISO = 12; +static const uint8_t SCK = 13; + +static const uint8_t SDA = 18; +static const uint8_t SCL = 19; +#define LED_BUILTIN 13 + +static const uint8_t A0 = 14; +static const uint8_t A1 = 15; +static const uint8_t A2 = 16; +static const uint8_t A3 = 17; +static const uint8_t A4 = 18; +static const uint8_t A5 = 19; +static const uint8_t A6 = 20; +static const uint8_t A7 = 21; + +#define digitalPinToPCICR(p) (((p) >= 0 && (p) <= 21) ? (&PCICR) : ((uint8_t *)0)) +#define digitalPinToPCICRbit(p) (((p) <= 7) ? 2 : (((p) <= 13) ? 0 : 1)) +#define digitalPinToPCMSK(p) (((p) <= 7) ? (&PCMSK2) : (((p) <= 13) ? (&PCMSK0) : (((p) <= 21) ? (&PCMSK1) : ((uint8_t *)0)))) +#define digitalPinToPCMSKbit(p) (((p) <= 7) ? (p) : (((p) <= 13) ? ((p) - 8) : ((p) - 14))) + +#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : NOT_AN_INTERRUPT)) + +#ifdef ARDUINO_MAIN + +// On the Arduino board, digital pins are also used +// for the analog output (software PWM). Analog input +// pins are a separate set. + +// 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.) + +// 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 + + +// 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, +}; + +const uint16_t PROGMEM port_to_output_PGM[] = { + NOT_A_PORT, + NOT_A_PORT, + (uint16_t) &PORTB, + (uint16_t) &PORTC, + (uint16_t) &PORTD, +}; + +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 + +// These serial port names are intended to allow libraries and architecture-neutral +// sketches to automatically default to the correct port name for a particular type +// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN, +// the first hardware serial port whose RX/TX pins are not dedicated to another use. +// +// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor +// +// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial +// +// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library +// +// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins. +// +// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX +// pins are NOT connected to anything by default. +#define SERIAL_PORT_MONITOR Serial +#define SERIAL_PORT_HARDWARE Serial + +#endif diff --git a/lib/arduino-stub.cpp b/lib/arduino-stub.cpp index 237074c..b98946d 100644 --- a/lib/arduino-stub.cpp +++ b/lib/arduino-stub.cpp @@ -20,10 +20,13 @@ * along with spreadspace avr utils. If not, see . */ +#define ARDUINO_MAIN #include "Arduino.h" +int atexit(void (* /*func*/ )()) { return 0; } extern "C" { +#include "stdlib.h" #ifndef cbi #define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit)) @@ -52,11 +55,8 @@ extern "C" { 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 "wiring_private.h" // the prescaler is set so that timer0 ticks every 64 clock cycles, and the // the overflow handler is called every 256 ticks. @@ -132,7 +132,6 @@ unsigned long micros() { #error TIMER 0 not defined #endif - #ifdef TIFR0 if ((TIFR0 & _BV(TOV0)) && (t < 255)) m++; @@ -148,75 +147,128 @@ unsigned long micros() { void delay(unsigned long ms) { - uint16_t start = (uint16_t)micros(); + uint32_t start = micros(); while (ms > 0) { - if (((uint16_t)micros() - start) >= 1000) { + yield(); + while ( ms > 0 && (micros() - start) >= 1000) { ms--; start += 1000; } } } -/* Delay for the given number of microseconds. Assumes a 8 or 16 MHz clock. */ +/* Delay for the given number of microseconds. Assumes a 1, 8, 12, 16, 20 or 24 MHz clock. */ void delayMicroseconds(unsigned int us) { + // call = 4 cycles + 2 to 4 cycles to init us(2 for constant delay, 4 for variable) + // calling avrlib's delay_us() function with low values (e.g. 1 or // 2 microseconds) gives delays longer than desired. //delay_us(us); -#if F_CPU >= 20000000L +#if F_CPU >= 24000000L + // for the 24 MHz clock for the aventurous ones, trying to overclock + + // zero delay fix + if (!us) return; // = 3 cycles, (4 when true) + + // the following loop takes a 1/6 of a microsecond (4 cycles) + // per iteration, so execute it six times for each microsecond of + // delay requested. + us *= 6; // x6 us, = 7 cycles + + // account for the time taken in the preceeding commands. + // we just burned 22 (24) cycles above, remove 5, (5*4=20) + // us is at least 6 so we can substract 5 + us -= 5; //=2 cycles + +#elif F_CPU >= 20000000L // for the 20 MHz clock on rare Arduino boards - // for a one-microsecond delay, simply wait 2 cycle and return. The overhead - // of the function call yields a delay of exactly a one microsecond. + // for a one-microsecond delay, simply return. the overhead + // of the function call takes 18 (20) cycles, which is 1us __asm__ __volatile__ ( "nop" "\n\t" - "nop"); //just waiting 2 cycle - if (--us == 0) - return; + "nop" "\n\t" + "nop" "\n\t" + "nop"); //just waiting 4 cycles + if (us <= 1) return; // = 3 cycles, (4 when true) // the following loop takes a 1/5 of a microsecond (4 cycles) // per iteration, so execute it five times for each microsecond of // delay requested. - us = (us<<2) + us; // x5 us + us = (us << 2) + us; // x5 us, = 7 cycles // account for the time taken in the preceeding commands. - us -= 2; + // we just burned 26 (28) cycles above, remove 7, (7*4=28) + // us is at least 10 so we can substract 7 + us -= 7; // 2 cycles #elif F_CPU >= 16000000L // for the 16 MHz clock on most Arduino boards // for a one-microsecond delay, simply return. the overhead - // of the function call yields a delay of approximately 1 1/8 us. - if (--us == 0) - return; + // of the function call takes 14 (16) cycles, which is 1us + if (us <= 1) return; // = 3 cycles, (4 when true) - // the following loop takes a quarter of a microsecond (4 cycles) + // the following loop takes 1/4 of a microsecond (4 cycles) // per iteration, so execute it four times for each microsecond of // delay requested. - us <<= 2; + us <<= 2; // x4 us, = 4 cycles // account for the time taken in the preceeding commands. - us -= 2; -#else - // for the 8 MHz internal clock on the ATmega168 + // we just burned 19 (21) cycles above, remove 5, (5*4=20) + // us is at least 8 so we can substract 5 + us -= 5; // = 2 cycles, + +#elif F_CPU >= 12000000L + // for the 12 MHz clock if somebody is working with USB - // for a one- or two-microsecond delay, simply return. the overhead of - // the function calls takes more than two microseconds. can't just - // subtract two, since us is unsigned; we'd overflow. - if (--us == 0) - return; - if (--us == 0) - return; + // for a 1 microsecond delay, simply return. the overhead + // of the function call takes 14 (16) cycles, which is 1.5us + if (us <= 1) return; // = 3 cycles, (4 when true) - // the following loop takes half of a microsecond (4 cycles) + // the following loop takes 1/3 of a microsecond (4 cycles) + // per iteration, so execute it three times for each microsecond of + // delay requested. + us = (us << 1) + us; // x3 us, = 5 cycles + + // account for the time taken in the preceeding commands. + // we just burned 20 (22) cycles above, remove 5, (5*4=20) + // us is at least 6 so we can substract 5 + us -= 5; //2 cycles + +#elif F_CPU >= 8000000L + // for the 8 MHz internal clock + + // for a 1 and 2 microsecond delay, simply return. the overhead + // of the function call takes 14 (16) cycles, which is 2us + if (us <= 2) return; // = 3 cycles, (4 when true) + + // the following loop takes 1/2 of a microsecond (4 cycles) // per iteration, so execute it twice for each microsecond of // delay requested. - us <<= 1; + us <<= 1; //x2 us, = 2 cycles + + // account for the time taken in the preceeding commands. + // we just burned 17 (19) cycles above, remove 4, (4*4=16) + // us is at least 6 so we can substract 4 + us -= 4; // = 2 cycles + +#else + // for the 1 MHz internal clock (default settings for common Atmega microcontrollers) + + // the overhead of the function calls is 14 (16) cycles + if (us <= 16) return; //= 3 cycles, (4 when true) + if (us <= 25) return; //= 3 cycles, (4 when true), (must be at least 25 if we want to substract 22) + + // compensate for the time taken by the preceeding and next commands (about 22 cycles) + us -= 22; // = 2 cycles + // the following loop takes 4 microseconds (4 cycles) + // per iteration, so execute it us/4 times + // us is at least 4, divided by 4 gives us 1 (no zero delay bug) + us >>= 2; // us div 4, = 4 cycles - // partially compensate for the time taken by the preceeding commands. - // we can't subtract any more than this or we'd overflow w/ small delays. - us--; #endif // busy wait @@ -224,6 +276,7 @@ void delayMicroseconds(unsigned int us) "1: sbiw %0,1" "\n\t" // 2 cycles "brne 1b" : "=w" (us) : "0" (us) // 2 cycles ); + // return = 4 cycles } void init() @@ -264,8 +317,21 @@ void init() #else #error Timer 0 overflow interrupt not set correctly #endif +} +/** + * Empty yield() hook. + * + * This function is intended to be used by library writers to build + * libraries or sketches that supports cooperative threads. + * + * Its defined as a weak symbol and it can be redefined to implement a + * real cooperative scheduler. + */ +static void __empty() { + // Empty } +void yield(void) __attribute__ ((weak, alias("__empty"))); } // extern "C" @@ -273,3 +339,461 @@ void arduino_init(void) { init(); } + +// ****************** +// this is from Arduino's wiring_digital.cpp + +void pinMode(uint8_t pin, uint8_t mode) +{ + uint8_t bit = digitalPinToBitMask(pin); + uint8_t port = digitalPinToPort(pin); + volatile uint8_t *reg, *out; + + if (port == NOT_A_PIN) return; + + // JWS: can I let the optimizer do this? + reg = portModeRegister(port); + out = portOutputRegister(port); + + if (mode == INPUT) { + uint8_t oldSREG = SREG; + cli(); + *reg &= ~bit; + *out &= ~bit; + SREG = oldSREG; + } else if (mode == INPUT_PULLUP) { + uint8_t oldSREG = SREG; + cli(); + *reg &= ~bit; + *out |= bit; + SREG = oldSREG; + } else { + uint8_t oldSREG = SREG; + cli(); + *reg |= bit; + SREG = oldSREG; + } +} + +// Forcing this inline keeps the callers from having to push their own stuff +// on the stack. It is a good performance win and only takes 1 more byte per +// user than calling. (It will take more bytes on the 168.) +// +// But shouldn't this be moved into pinMode? Seems silly to check and do on +// each digitalread or write. +// +// Mark Sproul: +// - Removed inline. Save 170 bytes on atmega1280 +// - changed to a switch statment; added 32 bytes but much easier to read and maintain. +// - Added more #ifdefs, now compiles for atmega645 +// +//static inline void turnOffPWM(uint8_t timer) __attribute__ ((always_inline)); +//static inline void turnOffPWM(uint8_t timer) +static void turnOffPWM(uint8_t timer) +{ + switch (timer) + { + #if defined(TCCR1A) && defined(COM1A1) + case TIMER1A: cbi(TCCR1A, COM1A1); break; + #endif + #if defined(TCCR1A) && defined(COM1B1) + case TIMER1B: cbi(TCCR1A, COM1B1); break; + #endif + #if defined(TCCR1A) && defined(COM1C1) + case TIMER1C: cbi(TCCR1A, COM1C1); break; + #endif + + #if defined(TCCR2) && defined(COM21) + case TIMER2: cbi(TCCR2, COM21); break; + #endif + + #if defined(TCCR0A) && defined(COM0A1) + case TIMER0A: cbi(TCCR0A, COM0A1); break; + #endif + + #if defined(TCCR0A) && defined(COM0B1) + case TIMER0B: cbi(TCCR0A, COM0B1); break; + #endif + #if defined(TCCR2A) && defined(COM2A1) + case TIMER2A: cbi(TCCR2A, COM2A1); break; + #endif + #if defined(TCCR2A) && defined(COM2B1) + case TIMER2B: cbi(TCCR2A, COM2B1); break; + #endif + + #if defined(TCCR3A) && defined(COM3A1) + case TIMER3A: cbi(TCCR3A, COM3A1); break; + #endif + #if defined(TCCR3A) && defined(COM3B1) + case TIMER3B: cbi(TCCR3A, COM3B1); break; + #endif + #if defined(TCCR3A) && defined(COM3C1) + case TIMER3C: cbi(TCCR3A, COM3C1); break; + #endif + + #if defined(TCCR4A) && defined(COM4A1) + case TIMER4A: cbi(TCCR4A, COM4A1); break; + #endif + #if defined(TCCR4A) && defined(COM4B1) + case TIMER4B: cbi(TCCR4A, COM4B1); break; + #endif + #if defined(TCCR4A) && defined(COM4C1) + case TIMER4C: cbi(TCCR4A, COM4C1); break; + #endif + #if defined(TCCR4C) && defined(COM4D1) + case TIMER4D: cbi(TCCR4C, COM4D1); break; + #endif + + #if defined(TCCR5A) + case TIMER5A: cbi(TCCR5A, COM5A1); break; + case TIMER5B: cbi(TCCR5A, COM5B1); break; + case TIMER5C: cbi(TCCR5A, COM5C1); break; + #endif + } +} + +void digitalWrite(uint8_t pin, uint8_t val) +{ + uint8_t timer = digitalPinToTimer(pin); + uint8_t bit = digitalPinToBitMask(pin); + uint8_t port = digitalPinToPort(pin); + volatile uint8_t *out; + + if (port == NOT_A_PIN) return; + + // If the pin that support PWM output, we need to turn it off + // before doing a digital write. + if (timer != NOT_ON_TIMER) turnOffPWM(timer); + + out = portOutputRegister(port); + + uint8_t oldSREG = SREG; + cli(); + + if (val == LOW) { + *out &= ~bit; + } else { + *out |= bit; + } + + SREG = oldSREG; +} + +int digitalRead(uint8_t pin) +{ + uint8_t timer = digitalPinToTimer(pin); + uint8_t bit = digitalPinToBitMask(pin); + uint8_t port = digitalPinToPort(pin); + + if (port == NOT_A_PIN) return LOW; + + // If the pin that support PWM output, we need to turn it off + // before getting a digital reading. + if (timer != NOT_ON_TIMER) turnOffPWM(timer); + + if (*portInputRegister(port) & bit) return HIGH; + return LOW; +} + +// ****************** +// this is from Arduino's wiring_analog.cpp + +uint8_t analog_reference = DEFAULT; + +void analogReference(uint8_t mode) +{ + // can't actually set the register here because the default setting + // will connect AVCC and the AREF pin, which would cause a short if + // there's something connected to AREF. + analog_reference = mode; +} + +int analogRead(uint8_t pin) +{ + uint8_t low, high; + +#if defined(analogPinToChannel) +#if defined(__AVR_ATmega32U4__) + if (pin >= 18) pin -= 18; // allow for channel or pin numbers +#endif + pin = analogPinToChannel(pin); +#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) + if (pin >= 54) pin -= 54; // allow for channel or pin numbers +#elif defined(__AVR_ATmega32U4__) + if (pin >= 18) pin -= 18; // allow for channel or pin numbers +#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644__) || defined(__AVR_ATmega644A__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__) + if (pin >= 24) pin -= 24; // allow for channel or pin numbers +#else + if (pin >= 14) pin -= 14; // allow for channel or pin numbers +#endif + +#if defined(ADCSRB) && defined(MUX5) + // the MUX5 bit of ADCSRB selects whether we're reading from channels + // 0 to 7 (MUX5 low) or 8 to 15 (MUX5 high). + ADCSRB = (ADCSRB & ~(1 << MUX5)) | (((pin >> 3) & 0x01) << MUX5); +#endif + + // set the analog reference (high two bits of ADMUX) and select the + // channel (low 4 bits). this also sets ADLAR (left-adjust result) + // to 0 (the default). +#if defined(ADMUX) + ADMUX = (analog_reference << 6) | (pin & 0x07); +#endif + + // without a delay, we seem to read from the wrong channel + //delay(1); + +#if defined(ADCSRA) && defined(ADCL) + // start the conversion + sbi(ADCSRA, ADSC); + + // ADSC is cleared when the conversion finishes + while (bit_is_set(ADCSRA, ADSC)); + + // we have to read ADCL first; doing so locks both ADCL + // and ADCH until ADCH is read. reading ADCL second would + // cause the results of each conversion to be discarded, + // as ADCL and ADCH would be locked when it completed. + low = ADCL; + high = ADCH; +#else + // we dont have an ADC, return 0 + low = 0; + high = 0; +#endif + + // combine the two bytes + return (high << 8) | low; +} + +// Right now, PWM output only works on the pins with +// hardware support. These are defined in the appropriate +// pins_*.c file. For the rest of the pins, we default +// to digital output. +void analogWrite(uint8_t pin, int val) +{ + // We need to make sure the PWM output is enabled for those pins + // that support it, as we turn it off when digitally reading or + // writing with them. Also, make sure the pin is in output mode + // for consistenty with Wiring, which doesn't require a pinMode + // call for the analog output pins. + pinMode(pin, OUTPUT); + if (val == 0) + { + digitalWrite(pin, LOW); + } + else if (val == 255) + { + digitalWrite(pin, HIGH); + } + else + { + switch(digitalPinToTimer(pin)) + { + // XXX fix needed for atmega8 + #if defined(TCCR0) && defined(COM00) && !defined(__AVR_ATmega8__) + case TIMER0A: + // connect pwm to pin on timer 0 + sbi(TCCR0, COM00); + OCR0 = val; // set pwm duty + break; + #endif + + #if defined(TCCR0A) && defined(COM0A1) + case TIMER0A: + // connect pwm to pin on timer 0, channel A + sbi(TCCR0A, COM0A1); + OCR0A = val; // set pwm duty + break; + #endif + + #if defined(TCCR0A) && defined(COM0B1) + case TIMER0B: + // connect pwm to pin on timer 0, channel B + sbi(TCCR0A, COM0B1); + OCR0B = val; // set pwm duty + break; + #endif + + #if defined(TCCR1A) && defined(COM1A1) + case TIMER1A: + // connect pwm to pin on timer 1, channel A + sbi(TCCR1A, COM1A1); + OCR1A = val; // set pwm duty + break; + #endif + + #if defined(TCCR1A) && defined(COM1B1) + case TIMER1B: + // connect pwm to pin on timer 1, channel B + sbi(TCCR1A, COM1B1); + OCR1B = val; // set pwm duty + break; + #endif + + #if defined(TCCR1A) && defined(COM1C1) + case TIMER1C: + // connect pwm to pin on timer 1, channel B + sbi(TCCR1A, COM1C1); + OCR1C = val; // set pwm duty + break; + #endif + + #if defined(TCCR2) && defined(COM21) + case TIMER2: + // connect pwm to pin on timer 2 + sbi(TCCR2, COM21); + OCR2 = val; // set pwm duty + break; + #endif + + #if defined(TCCR2A) && defined(COM2A1) + case TIMER2A: + // connect pwm to pin on timer 2, channel A + sbi(TCCR2A, COM2A1); + OCR2A = val; // set pwm duty + break; + #endif + + #if defined(TCCR2A) && defined(COM2B1) + case TIMER2B: + // connect pwm to pin on timer 2, channel B + sbi(TCCR2A, COM2B1); + OCR2B = val; // set pwm duty + break; + #endif + + #if defined(TCCR3A) && defined(COM3A1) + case TIMER3A: + // connect pwm to pin on timer 3, channel A + sbi(TCCR3A, COM3A1); + OCR3A = val; // set pwm duty + break; + #endif + + #if defined(TCCR3A) && defined(COM3B1) + case TIMER3B: + // connect pwm to pin on timer 3, channel B + sbi(TCCR3A, COM3B1); + OCR3B = val; // set pwm duty + break; + #endif + + #if defined(TCCR3A) && defined(COM3C1) + case TIMER3C: + // connect pwm to pin on timer 3, channel C + sbi(TCCR3A, COM3C1); + OCR3C = val; // set pwm duty + break; + #endif + + #if defined(TCCR4A) + case TIMER4A: + //connect pwm to pin on timer 4, channel A + sbi(TCCR4A, COM4A1); + #if defined(COM4A0) // only used on 32U4 + cbi(TCCR4A, COM4A0); + #endif + OCR4A = val; // set pwm duty + break; + #endif + + #if defined(TCCR4A) && defined(COM4B1) + case TIMER4B: + // connect pwm to pin on timer 4, channel B + sbi(TCCR4A, COM4B1); + OCR4B = val; // set pwm duty + break; + #endif + + #if defined(TCCR4A) && defined(COM4C1) + case TIMER4C: + // connect pwm to pin on timer 4, channel C + sbi(TCCR4A, COM4C1); + OCR4C = val; // set pwm duty + break; + #endif + + #if defined(TCCR4C) && defined(COM4D1) + case TIMER4D: + // connect pwm to pin on timer 4, channel D + sbi(TCCR4C, COM4D1); + #if defined(COM4D0) // only used on 32U4 + cbi(TCCR4C, COM4D0); + #endif + OCR4D = val; // set pwm duty + break; + #endif + + + #if defined(TCCR5A) && defined(COM5A1) + case TIMER5A: + // connect pwm to pin on timer 5, channel A + sbi(TCCR5A, COM5A1); + OCR5A = val; // set pwm duty + break; + #endif + + #if defined(TCCR5A) && defined(COM5B1) + case TIMER5B: + // connect pwm to pin on timer 5, channel B + sbi(TCCR5A, COM5B1); + OCR5B = val; // set pwm duty + break; + #endif + + #if defined(TCCR5A) && defined(COM5C1) + case TIMER5C: + // connect pwm to pin on timer 5, channel C + sbi(TCCR5A, COM5C1); + OCR5C = val; // set pwm duty + break; + #endif + + case NOT_ON_TIMER: + default: + if (val < 128) { + digitalWrite(pin, LOW); + } else { + digitalWrite(pin, HIGH); + } + } + } +} + +// ****************** +// this is from Arduino's WMath.cpp + +void randomSeed(unsigned long seed) +{ + if (seed != 0) { + srandom(seed); + } +} + +long random(long howbig) +{ + if (howbig == 0) { + return 0; + } + return random() % howbig; +} + +long random(long howsmall, long howbig) +{ + if (howsmall >= howbig) { + return howsmall; + } + long diff = howbig - howsmall; + return random(diff) + howsmall; +} + +long map(long x, long in_min, long in_max, long out_min, long out_max) +{ + return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min; +} + +unsigned int makeWord(unsigned int w) { return w; } +unsigned int makeWord(unsigned char h, unsigned char l) { return (h << 8) | l; } + +// end WMath.cpp -- cgit v1.2.3