1 /* 2 wiring.h - Partial implementation of the Wiring API for the ATmega8. 3 Part of Arduino - http://www.arduino.cc/ 4 5 Copyright (c) 2005-2006 David A. Mellis 6 7 This library is free software; you can redistribute it and/or 8 modify it under the terms of the GNU Lesser General Public 9 License as published by the Free Software Foundation; either 10 version 2.1 of the License, or (at your option) any later version. 11 12 This library is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 Lesser General Public License for more details. 16 17 You should have received a copy of the GNU Lesser General 18 Public License along with this library; if not, write to the 19 Free Software Foundation, Inc., 59 Temple Place, Suite 330, 20 Boston, MA 02111-1307 USA 21 22 $Id$ 23 */ 24 25 #ifndef Wiring_h 26 #define Wiring_h 27 28 #include <avr/io.h> 29 #include <stdlib.h> 30 #include "binary.h" 31 32 #ifdef __cplusplus 33 extern "C"{ 34 #endif 35 36 #define HIGH 0x1 37 #define LOW 0x0 38 39 #define INPUT 0x0 40 #define OUTPUT 0x1 41 42 #define true 0x1 43 #define false 0x0 44 45 #define PI 3.1415926535897932384626433832795 46 #define HALF_PI 1.5707963267948966192313216916398 47 #define TWO_PI 6.283185307179586476925286766559 48 #define DEG_TO_RAD 0.017453292519943295769236907684886 49 #define RAD_TO_DEG 57.295779513082320876798154814105 50 51 #define SERIAL 0x0 52 #define DISPLAY 0x1 53 54 #define LSBFIRST 0 55 #define MSBFIRST 1 56 57 #define CHANGE 1 58 #define FALLING 2 59 #define RISING 3 60 61 #if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) 62 #define INTERNAL1V1 2 63 #define INTERNAL2V56 3 64 #else 65 #define INTERNAL 3 66 #endif 67 #define DEFAULT 1 68 #define EXTERNAL 0 69 70 // undefine stdlib's abs if encountered 71 #ifdef abs 72 #undef abs 73 #endif 74 75 #define min(a,b) ((a)<(b)?(a):(b)) 76 #define max(a,b) ((a)>(b)?(a):(b)) 77 #define abs(x) ((x)>0?(x):-(x)) 78 #define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt))) 79 #if __AVR_LIBC_VERSION__ < 10701UL 80 #define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5)) 81 #endif 82 #define radians(deg) ((deg)*DEG_TO_RAD) 83 #define degrees(rad) ((rad)*RAD_TO_DEG) 84 #define sq(x) ((x)*(x)) 85 86 #define interrupts() sei() 87 #define noInterrupts() cli() 88 89 #define clockCyclesPerMicrosecond() ( F_CPU / 1000000L ) 90 #define clockCyclesToMicroseconds(a) ( ((a) * 1000L) / (F_CPU / 1000L) ) 91 #define microsecondsToClockCycles(a) ( ((a) * (F_CPU / 1000L)) / 1000L ) 92 93 #define lowByte(w) ((uint8_t) ((w) & 0xff)) 94 #define highByte(w) ((uint8_t) ((w) >> 8)) 95 96 #define bitRead(value, bit) (((value) >> (bit)) & 0x01) 97 #define bitSet(value, bit) ((value) |= (1UL << (bit))) 98 #define bitClear(value, bit) ((value) &= ~(1UL << (bit))) 99 #define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit)) 100 101 102 typedef unsigned int word; 103 104 #define bit(b) (1UL << (b)) 105 106 typedef uint8_t boolean; 107 typedef uint8_t byte; 108 109 void init(void); 110 111 void pinMode(uint8_t, uint8_t); 112 void digitalWrite(uint8_t, uint8_t); 113 int digitalRead(uint8_t); 114 int analogRead(uint8_t); 115 void analogReference(uint8_t mode); 116 void analogWrite(uint8_t, int); 117 118 unsigned long millis(void); 119 unsigned long micros(void); 120 void delay(unsigned long); 121 void delayMicroseconds(unsigned int us); 122 unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout); 123 124 void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val); 125 uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder); 126 127 void attachInterrupt(uint8_t, void (*)(void), int mode); 128 void detachInterrupt(uint8_t); 129 130 void setup(void); 131 void loop(void); 132 133 #ifdef __cplusplus 134 } // extern "C" 135 #endif 136 137 #endif 138