primo commit

This commit is contained in:
drakelive 2012-09-25 18:46:38 +02:00
parent c0aad4c28a
commit ca7ca4572e
33 changed files with 5459 additions and 0 deletions

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Marlin/Boards/boards.txt Normal file
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##############################################################
Generation_Series.name=Gen6 & Gen6 Deluxe
Generation_Series.upload.protocol=stk500
Generation_Series.upload.maximum_size=63488
Generation_Series.upload.speed=38400
Generation_Series.bootloader.low_fuses=0xFF
Generation_Series.bootloader.high_fuses=0xDC
Generation_Series.bootloader.extended_fuses=0xFD
Generation_Series.bootloader.path=atmega644p
Generation_Series.bootloader.file=ATmegaBOOT_644P.hex
Generation_Series.bootloader.unlock_bits=0x3F
Generation_Series.bootloader.lock_bits=0x0F
Generation_Series.build.mcu=atmega644p
Generation_Series.build.f_cpu=16000000L
Generation_Series.build.core=arduino
##############################################################
Sanguinololu.name=Sanguinololu 1.2 and above
Sanguinololu.upload.protocol=stk500
Sanguinololu.upload.maximum_size=63488
Sanguinololu.upload.speed=38400
Sanguinololu.bootloader.low_fuses=0xFF
Sanguinololu.bootloader.high_fuses=0xDC
Sanguinololu.bootloader.extended_fuses=0xFD
Sanguinololu.bootloader.path=atmega644p
Sanguinololu.bootloader.file=ATmegaBOOT_644P.hex
Sanguinololu.bootloader.unlock_bits=0x3F
Sanguinololu.bootloader.lock_bits=0x0F
Sanguinololu.build.mcu=atmega644p
Sanguinololu.build.f_cpu=16000000L
Sanguinololu.build.core=arduino

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/**********************************************************/
/* Serial Bootloader for Atmel megaAVR Controllers */
/* */
/* tested with ATmega644 and ATmega644P */
/* should work with other mega's, see code for details */
/* */
/* ATmegaBOOT.c */
/* */
/* 20090131: Added 324P support from Alex Leone */
/* Marius Kintel */
/* 20080915: applied ADABoot mods for Sanguino 644P */
/* Brian Riley */
/* 20080711: hacked for Sanguino by Zach Smith */
/* and Justin Day */
/* 20070626: hacked for Arduino Diecimila (which auto- */
/* resets when a USB connection is made to it) */
/* by D. Mellis */
/* 20060802: hacked for Arduino by D. Cuartielles */
/* based on a previous hack by D. Mellis */
/* and D. Cuartielles */
/* */
/* Monitor and debug functions were added to the original */
/* code by Dr. Erik Lins, chip45.com. (See below) */
/* */
/* Thanks to Karl Pitrich for fixing a bootloader pin */
/* problem and more informative LED blinking! */
/* */
/* For the latest version see: */
/* http://www.chip45.com/ */
/* */
/* ------------------------------------------------------ */
/* */
/* based on stk500boot.c */
/* Copyright (c) 2003, Jason P. Kyle */
/* All rights reserved. */
/* see avr1.org for original file and information */
/* */
/* This program is free software; you can redistribute it */
/* and/or modify it under the terms of the GNU General */
/* Public License as published by the Free Software */
/* Foundation; either version 2 of the License, or */
/* (at your option) any later version. */
/* */
/* This program 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 General Public */
/* License for more details. */
/* */
/* You should have received a copy of the GNU General */
/* Public License along with this program; if not, write */
/* to the Free Software Foundation, Inc., */
/* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* */
/* Licence can be viewed at */
/* http://www.fsf.org/licenses/gpl.txt */
/* */
/* Target = Atmel AVR m128,m64,m32,m16,m8,m162,m163,m169, */
/* m8515,m8535. ATmega161 has a very small boot block so */
/* isn't supported. */
/* */
/* Tested with m168 */
/**********************************************************/
/* $Id$ */
/* some includes */
#include <inttypes.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include <avr/wdt.h>
#include <avr/boot.h>
#ifdef ADABOOT
#define NUM_LED_FLASHES 3
#define ADABOOT_VER 1
#endif
/* 20070707: hacked by David A. Mellis - after this many errors give up and launch application */
#define MAX_ERROR_COUNT 5
/* set the UART baud rate */
/* 20080711: hack by Zach Hoeken */
#define BAUD_RATE 38400
/* SW_MAJOR and MINOR needs to be updated from time to time to avoid warning message from AVR Studio */
/* never allow AVR Studio to do an update !!!! */
#define HW_VER 0x02
#define SW_MAJOR 0x01
#define SW_MINOR 0x10
/* onboard LED is used to indicate, that the bootloader was entered (3x flashing) */
/* if monitor functions are included, LED goes on after monitor was entered */
#define LED_DDR DDRB
#define LED_PORT PORTB
#define LED_PIN PINB
#define LED PINB0
/* define various device id's */
/* manufacturer byte is always the same */
#define SIG1 0x1E // Yep, Atmel is the only manufacturer of AVR micros. Single source :(
#if defined(__AVR_ATmega644P__)
#define SIG2 0x96
#define SIG3 0x0A
#elif defined(__AVR_ATmega644__)
#define SIG2 0x96
#define SIG3 0x09
#elif defined(__AVR_ATmega324P__)
#define SIG2 0x95
#define SIG3 0x08
#endif
#define PAGE_SIZE 0x080U //128 words
#define PAGE_SIZE_BYTES 0x100U //256 bytes
/* function prototypes */
void putch(char);
char getch(void);
void getNch(uint8_t);
void byte_response(uint8_t);
void nothing_response(void);
char gethex(void);
void puthex(char);
void flash_led(uint8_t);
/* some variables */
union address_union
{
uint16_t word;
uint8_t byte[2];
} address;
union length_union
{
uint16_t word;
uint8_t byte[2];
} length;
struct flags_struct
{
unsigned eeprom : 1;
unsigned rampz : 1;
} flags;
uint8_t buff[256];
uint8_t error_count = 0;
uint8_t sreg;
void (*app_start)(void) = 0x0000;
/* main program starts here */
int main(void)
{
uint8_t ch,ch2;
uint16_t w;
uint16_t i;
asm volatile("nop\n\t");
#ifdef ADABOOT // BBR/LF 10/8/2007 & 9/13/2008
ch = MCUSR;
MCUSR = 0;
WDTCSR |= _BV(WDCE) | _BV(WDE);
WDTCSR = 0;
// Check if the WDT was used to reset, in which case we dont bootload and skip straight to the code. woot.
if (! (ch & _BV(EXTRF))) // if its a not an external reset...
app_start(); // skip bootloader
#endif
//initialize our serial port.
UBRR0L = (uint8_t)(F_CPU/(BAUD_RATE*16L)-1);
UBRR0H = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
UCSR0B = (1<<RXEN0) | (1<<TXEN0);
UCSR0C = (1<<UCSZ00) | (1<<UCSZ01);
/* Enable internal pull-up resistor on pin D0 (RX), in order
to supress line noise that prevents the bootloader from
timing out (DAM: 20070509) */
DDRD &= ~_BV(PIND0);
PORTD |= _BV(PIND0);
/* set LED pin as output */
LED_DDR |= _BV(LED);
/* flash onboard LED to signal entering of bootloader */
/* ADABOOT will do two series of flashes. first 4 - signifying ADABOOT */
/* then a pause and another flash series signifying ADABOOT sub-version */
flash_led(NUM_LED_FLASHES);
#ifdef ADABOOT
flash_led(ADABOOT_VER); // BBR 9/13/2008
#endif
/* forever loop */
for (;;)
{
/* get character from UART */
ch = getch();
/* A bunch of if...else if... gives smaller code than switch...case ! */
/* Hello is anyone home ? */
if(ch=='0')
nothing_response();
/* Request programmer ID */
/* Not using PROGMEM string due to boot block in m128 being beyond 64kB boundry */
/* Would need to selectively manipulate RAMPZ, and it's only 9 characters anyway so who cares. */
else if(ch=='1')
{
if (getch() == ' ')
{
putch(0x14);
putch('A');
putch('V');
putch('R');
putch(' ');
putch('I');
putch('S');
putch('P');
putch(0x10);
}
else
{
if (++error_count == MAX_ERROR_COUNT)
app_start();
}
}
/* AVR ISP/STK500 board commands DON'T CARE so default nothing_response */
else if(ch=='@')
{
ch2 = getch();
if (ch2 > 0x85)
getch();
nothing_response();
}
/* AVR ISP/STK500 board requests */
else if(ch=='A')
{
ch2 = getch();
if(ch2 == 0x80)
byte_response(HW_VER); // Hardware version
else if(ch2==0x81)
byte_response(SW_MAJOR); // Software major version
else if(ch2==0x82)
byte_response(SW_MINOR); // Software minor version
else if(ch2==0x98)
byte_response(0x03); // Unknown but seems to be required by avr studio 3.56
else
byte_response(0x00); // Covers various unnecessary responses we don't care about
}
/* Device Parameters DON'T CARE, DEVICE IS FIXED */
else if(ch=='B')
{
getNch(20);
nothing_response();
}
/* Parallel programming stuff DON'T CARE */
else if(ch=='E')
{
getNch(5);
nothing_response();
}
/* Enter programming mode */
else if(ch=='P')
{
nothing_response();
}
/* Leave programming mode */
else if(ch=='Q')
{
nothing_response();
#ifdef ADABOOT
// autoreset via watchdog (sneaky!) BBR/LF 9/13/2008
WDTCSR = _BV(WDE);
while (1); // 16 ms
#endif
}
/* Erase device, don't care as we will erase one page at a time anyway. */
else if(ch=='R')
{
nothing_response();
}
/* Set address, little endian. EEPROM in bytes, FLASH in words */
/* Perhaps extra address bytes may be added in future to support > 128kB FLASH. */
/* This might explain why little endian was used here, big endian used everywhere else. */
else if(ch=='U')
{
address.byte[0] = getch();
address.byte[1] = getch();
nothing_response();
}
/* Universal SPI programming command, disabled. Would be used for fuses and lock bits. */
else if(ch=='V')
{
getNch(4);
byte_response(0x00);
}
/* Write memory, length is big endian and is in bytes */
else if(ch=='d')
{
length.byte[1] = getch();
length.byte[0] = getch();
flags.eeprom = 0;
if (getch() == 'E')
flags.eeprom = 1;
for (i=0; i<PAGE_SIZE; i++)
buff[i] = 0;
for (w = 0; w < length.word; w++)
{
// Store data in buffer, can't keep up with serial data stream whilst programming pages
buff[w] = getch();
}
if (getch() == ' ')
{
if (flags.eeprom)
{
//Write to EEPROM one byte at a time
for(w=0;w<length.word;w++)
{
while(EECR & (1<<EEPE));
EEAR = (uint16_t)(void *)address.word;
EEDR = buff[w];
EECR |= (1<<EEMPE);
EECR |= (1<<EEPE);
address.word++;
}
}
else
{
//address * 2 -> byte location
address.word = address.word << 1;
//Even up an odd number of bytes
if ((length.byte[0] & 0x01))
length.word++;
// HACKME: EEPE used to be EEWE
//Wait for previous EEPROM writes to complete
//while(bit_is_set(EECR,EEPE));
while(EECR & (1<<EEPE));
asm volatile(
"clr r17 \n\t" //page_word_count
"lds r30,address \n\t" //Address of FLASH location (in bytes)
"lds r31,address+1 \n\t"
"ldi r28,lo8(buff) \n\t" //Start of buffer array in RAM
"ldi r29,hi8(buff) \n\t"
"lds r24,length \n\t" //Length of data to be written (in bytes)
"lds r25,length+1 \n\t"
"length_loop: \n\t" //Main loop, repeat for number of words in block
"cpi r17,0x00 \n\t" //If page_word_count=0 then erase page
"brne no_page_erase \n\t"
"wait_spm1: \n\t"
"lds r16,%0 \n\t" //Wait for previous spm to complete
"andi r16,1 \n\t"
"cpi r16,1 \n\t"
"breq wait_spm1 \n\t"
"ldi r16,0x03 \n\t" //Erase page pointed to by Z
"sts %0,r16 \n\t"
"spm \n\t"
"wait_spm2: \n\t"
"lds r16,%0 \n\t" //Wait for previous spm to complete
"andi r16,1 \n\t"
"cpi r16,1 \n\t"
"breq wait_spm2 \n\t"
"ldi r16,0x11 \n\t" //Re-enable RWW section
"sts %0,r16 \n\t"
"spm \n\t"
"no_page_erase: \n\t"
"ld r0,Y+ \n\t" //Write 2 bytes into page buffer
"ld r1,Y+ \n\t"
"wait_spm3: \n\t"
"lds r16,%0 \n\t" //Wait for previous spm to complete
"andi r16,1 \n\t"
"cpi r16,1 \n\t"
"breq wait_spm3 \n\t"
"ldi r16,0x01 \n\t" //Load r0,r1 into FLASH page buffer
"sts %0,r16 \n\t"
"spm \n\t"
"inc r17 \n\t" //page_word_count++
"cpi r17,%1 \n\t"
"brlo same_page \n\t" //Still same page in FLASH
"write_page: \n\t"
"clr r17 \n\t" //New page, write current one first
"wait_spm4: \n\t"
"lds r16,%0 \n\t" //Wait for previous spm to complete
"andi r16,1 \n\t"
"cpi r16,1 \n\t"
"breq wait_spm4 \n\t"
"ldi r16,0x05 \n\t" //Write page pointed to by Z
"sts %0,r16 \n\t"
"spm \n\t"
"wait_spm5: \n\t"
"lds r16,%0 \n\t" //Wait for previous spm to complete
"andi r16,1 \n\t"
"cpi r16,1 \n\t"
"breq wait_spm5 \n\t"
"ldi r16,0x11 \n\t" //Re-enable RWW section
"sts %0,r16 \n\t"
"spm \n\t"
"same_page: \n\t"
"adiw r30,2 \n\t" //Next word in FLASH
"sbiw r24,2 \n\t" //length-2
"breq final_write \n\t" //Finished
"rjmp length_loop \n\t"
"final_write: \n\t"
"cpi r17,0 \n\t"
"breq block_done \n\t"
"adiw r24,2 \n\t" //length+2, fool above check on length after short page write
"rjmp write_page \n\t"
"block_done: \n\t"
"clr __zero_reg__ \n\t" //restore zero register
: "=m" (SPMCSR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31"
);
}
putch(0x14);
putch(0x10);
}
else
{
if (++error_count == MAX_ERROR_COUNT)
app_start();
}
}
/* Read memory block mode, length is big endian. */
else if(ch=='t')
{
length.byte[1] = getch();
length.byte[0] = getch();
if (getch() == 'E')
flags.eeprom = 1;
else
{
flags.eeprom = 0;
address.word = address.word << 1; // address * 2 -> byte location
}
// Command terminator
if (getch() == ' ')
{
putch(0x14);
for (w=0; w<length.word; w++)
{
// Can handle odd and even lengths okay
if (flags.eeprom)
{
// Byte access EEPROM read
while(EECR & (1<<EEPE));
EEAR = (uint16_t)(void *)address.word;
EECR |= (1<<EERE);
putch(EEDR);
address.word++;
}
else
{
if (!flags.rampz)
putch(pgm_read_byte_near(address.word));
address.word++;
}
}
putch(0x10);
}
}
/* Get device signature bytes */
else if(ch=='u')
{
if (getch() == ' ')
{
putch(0x14);
putch(SIG1);
putch(SIG2);
putch(SIG3);
putch(0x10);
}
else
{
if (++error_count == MAX_ERROR_COUNT)
app_start();
}
}
/* Read oscillator calibration byte */
else if(ch=='v')
byte_response(0x00);
else if (++error_count == MAX_ERROR_COUNT)
app_start();
}
/* end of forever loop */
}
char gethex(void)
{
char ah,al;
ah = getch();
putch(ah);
al = getch();
putch(al);
if(ah >= 'a')
ah = ah - 'a' + 0x0a;
else if(ah >= '0')
ah -= '0';
if(al >= 'a')
al = al - 'a' + 0x0a;
else if(al >= '0')
al -= '0';
return (ah << 4) + al;
}
void puthex(char ch)
{
char ah,al;
ah = (ch & 0xf0) >> 4;
if(ah >= 0x0a)
ah = ah - 0x0a + 'a';
else
ah += '0';
al = (ch & 0x0f);
if(al >= 0x0a)
al = al - 0x0a + 'a';
else
al += '0';
putch(ah);
putch(al);
}
void putch(char ch)
{
while (!(UCSR0A & _BV(UDRE0)));
UDR0 = ch;
}
char getch(void)
{
uint32_t count = 0;
#ifdef ADABOOT
LED_PORT &= ~_BV(LED); // toggle LED to show activity - BBR/LF 10/3/2007 & 9/13/2008
#endif
while(!(UCSR0A & _BV(RXC0)))
{
/* 20060803 DojoCorp:: Addon coming from the previous Bootloader*/
/* HACKME:: here is a good place to count times*/
count++;
if (count > MAX_TIME_COUNT)
app_start();
}
#ifdef ADABOOT
LED_PORT |= _BV(LED); // toggle LED to show activity - BBR/LF 10/3/2007 & 9/13/2008
#endif
return UDR0;
}
void getNch(uint8_t count)
{
uint8_t i;
for(i=0;i<count;i++)
{
while(!(UCSR0A & _BV(RXC0)));
UDR0;
}
}
void byte_response(uint8_t val)
{
if (getch() == ' ')
{
putch(0x14);
putch(val);
putch(0x10);
}
else
{
if (++error_count == MAX_ERROR_COUNT)
app_start();
}
}
void nothing_response(void)
{
if (getch() == ' ')
{
putch(0x14);
putch(0x10);
}
else
{
if (++error_count == MAX_ERROR_COUNT)
app_start();
}
}
#ifdef ADABOOT
void flash_led(uint8_t count)
{
/* flash onboard LED count times to signal entering of bootloader */
/* l needs to be volatile or the delay loops below might get */
/* optimized away if compiling with optimizations (DAM). */
volatile uint32_t l;
if (count == 0) {
count = ADABOOT;
}
int8_t i;
for (i = 0; i < count; ++i) {
LED_PORT |= _BV(LED); // LED on
for(l = 0; l < (F_CPU / 1000); ++l); // delay NGvalue was 1000 for both loops - BBR
LED_PORT &= ~_BV(LED); // LED off
for(l = 0; l < (F_CPU / 250); ++l); // delay asymmteric for ADA BOOT BBR
}
for(l = 0; l < (F_CPU / 100); ++l); // pause ADA BOOT BBR
}
#else
void flash_led(uint8_t count)
{
/* flash onboard LED three times to signal entering of bootloader */
/* l needs to be volatile or the delay loops below might get
optimized away if compiling with optimizations (DAM). */
volatile uint32_t l;
if (count == 0) {
count = 3;
}
int8_t i;
for (i = 0; i < count; ++i) {
LED_PORT |= _BV(LED);
for(l = 0; l < (F_CPU / 1000); ++l);
LED_PORT &= ~_BV(LED);
for(l = 0; l < (F_CPU / 1000); ++l);
}
}
#endif
/* end of file ATmegaBOOT.c */

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# Makefile for ATmegaBOOT
# E.Lins, 18.7.2005
# $Id$
# program name should not be changed...
PROGRAM = ATmegaBOOT_644P
# enter the target CPU frequency
AVR_FREQ = 16000000L
MCU_TARGET = atmega644p
LDSECTION = --section-start=.text=0xF800
OBJ = $(PROGRAM).o
OPTIMIZE = -O2
DEFS =
LIBS =
CC = avr-gcc
# Override is only needed by avr-lib build system.
override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) -DF_CPU=$(AVR_FREQ) $(DEFS)
override LDFLAGS = -Wl,$(LDSECTION)
#override LDFLAGS = -Wl,-Map,$(PROGRAM).map,$(LDSECTION)
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
all: CFLAGS += '-DMAX_TIME_COUNT=8000000L>>1' -DADABOOT
all: $(PROGRAM).hex
$(PROGRAM).hex: $(PROGRAM).elf
$(OBJCOPY) -j .text -j .data -O ihex $< $@
$(PROGRAM).elf: $(OBJ)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
$(OBJ): ATmegaBOOT.c
avr-gcc $(CFLAGS) $(LDFLAGS) -c -g -O2 -Wall -mmcu=$(MCU_TARGET) ATmegaBOOT.c -o $(PROGRAM).o
%.lst: %.elf
$(OBJDUMP) -h -S $< > $@
%.srec: %.elf
$(OBJCOPY) -j .text -j .data -O srec $< $@
%.bin: %.elf
$(OBJCOPY) -j .text -j .data -O binary $< $@
clean:
rm -rf *.o *.elf *.lst *.map *.sym *.lss *.eep *.srec *.bin *.hex

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Note: This bootloader support ATmega644, ATmega644P and ATmega324P.
To build, set PROGRAM and MCU_TARGET in the Makefile according to your target device.

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#include "WProgram.h"

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/*
wiring.h - Partial implementation of the Wiring API for the ATmega8.
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
$Id$
*/
#ifndef Wiring_h
#define Wiring_h
#include <avr/io.h>
#include <stdlib.h>
#include "binary.h"
#ifdef __cplusplus
extern "C"{
#endif
#define HIGH 0x1
#define LOW 0x0
#define INPUT 0x0
#define OUTPUT 0x1
#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 SERIAL 0x0
#define DISPLAY 0x1
#define LSBFIRST 0
#define MSBFIRST 1
#define CHANGE 1
#define FALLING 2
#define RISING 3
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define INTERNAL1V1 2
#define INTERNAL2V56 3
#else
#define INTERNAL 3
#endif
#define DEFAULT 1
#define EXTERNAL 0
// undefine stdlib's abs if encountered
#ifdef abs
#undef abs
#endif
#define min(a,b) ((a)<(b)?(a):(b))
#define max(a,b) ((a)>(b)?(a):(b))
#define abs(x) ((x)>0?(x):-(x))
#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
#define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
#define radians(deg) ((deg)*DEG_TO_RAD)
#define degrees(rad) ((rad)*RAD_TO_DEG)
#define sq(x) ((x)*(x))
#define interrupts() sei()
#define noInterrupts() cli()
#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
#define clockCyclesToMicroseconds(a) ( ((a) * 1000L) / (F_CPU / 1000L) )
#define microsecondsToClockCycles(a) ( ((a) * (F_CPU / 1000L)) / 1000L )
#define lowByte(w) ((uint8_t) ((w) & 0xff))
#define highByte(w) ((uint8_t) ((w) >> 8))
#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
#define bitSet(value, bit) ((value) |= (1UL << (bit)))
#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
typedef unsigned int word;
#define bit(b) (1UL << (b))
typedef uint8_t boolean;
typedef uint8_t byte;
void init(void);
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);
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);
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);
void attachInterrupt(uint8_t, void (*)(void), int mode);
void detachInterrupt(uint8_t);
void setup(void);
void loop(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif

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/*
HardwareSerial.cpp - Hardware serial library for Wiring
Copyright (c) 2006 Nicholas Zambetti. 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
Modified 23 November 2006 by David A. Mellis
Modified 28 September 2010 by Mark Sproul
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "wiring.h"
#include "wiring_private.h"
// this next line disables the entire HardwareSerial.cpp,
// this is so I can support Attiny series and any other chip without a uart
#if defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H)
#include "HardwareSerial.h"
// Define constants and variables for buffering incoming serial data. We're
// using a ring buffer (I think), in which rx_buffer_head is the index of the
// location to which to write the next incoming character and rx_buffer_tail
// is the index of the location from which to read.
#define RX_BUFFER_SIZE 128
struct ring_buffer
{
unsigned char buffer[RX_BUFFER_SIZE];
int head;
int tail;
};
ring_buffer rx_buffer = { { 0 }, 0, 0 };
inline void store_char(unsigned char c, ring_buffer *rx_buffer)
{
int i = (unsigned int)(rx_buffer->head + 1) & (RX_BUFFER_SIZE -1);
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the
// current location of the tail), we're about to overflow the buffer
// and so we don't write the character or advance the head.
if (i != rx_buffer->tail) {
rx_buffer->buffer[rx_buffer->head] = c;
rx_buffer->head = i;
}
}
// fixed by Mark Sproul this is on the 644/644p
//SIGNAL(SIG_USART_RECV)
SIGNAL(USART0_RX_vect)
{
unsigned char c = UDR0;
store_char(c, &rx_buffer);
}
// Constructors ////////////////////////////////////////////////////////////////
HardwareSerial::HardwareSerial(ring_buffer *rx_buffer,
volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
volatile uint8_t *udr,
uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre, uint8_t u2x)
{
_rx_buffer = rx_buffer;
_ubrrh = ubrrh;
_ubrrl = ubrrl;
_ucsra = ucsra;
_ucsrb = ucsrb;
_udr = udr;
_rxen = rxen;
_txen = txen;
_rxcie = rxcie;
_udre = udre;
_u2x = u2x;
}
// Public Methods //////////////////////////////////////////////////////////////
void HardwareSerial::begin(long baud)
{
uint16_t baud_setting;
bool use_u2x = true;
#if F_CPU == 16000000UL
// hardcoded exception for compatibility with the bootloader shipped
// with the Duemilanove and previous boards and the firmware on the 8U2
// on the Uno and Mega 2560.
if (baud == 57600) {
use_u2x = false;
}
#endif
if (use_u2x) {
*_ucsra = 1 << _u2x;
baud_setting = (F_CPU / 4 / baud - 1) / 2;
} else {
*_ucsra = 0;
baud_setting = (F_CPU / 8 / baud - 1) / 2;
}
// assign the baud_setting, a.k.a. ubbr (USART Baud Rate Register)
*_ubrrh = baud_setting >> 8;
*_ubrrl = baud_setting;
sbi(*_ucsrb, _rxen);
sbi(*_ucsrb, _txen);
sbi(*_ucsrb, _rxcie);
}
void HardwareSerial::end()
{
cbi(*_ucsrb, _rxen);
cbi(*_ucsrb, _txen);
cbi(*_ucsrb, _rxcie);
}
int HardwareSerial::available(void)
{
return (unsigned int)(RX_BUFFER_SIZE + _rx_buffer->head - _rx_buffer->tail) & (RX_BUFFER_SIZE-1);
}
int HardwareSerial::peek(void)
{
if (_rx_buffer->head == _rx_buffer->tail) {
return -1;
} else {
return _rx_buffer->buffer[_rx_buffer->tail];
}
}
int HardwareSerial::read(void)
{
// if the head isn't ahead of the tail, we don't have any characters
if (_rx_buffer->head == _rx_buffer->tail) {
return -1;
} else {
unsigned char c = _rx_buffer->buffer[_rx_buffer->tail];
_rx_buffer->tail = (unsigned int)(_rx_buffer->tail + 1) & (RX_BUFFER_SIZE-1);
return c;
}
}
void HardwareSerial::flush()
{
// don't reverse this or there may be problems if the RX interrupt
// occurs after reading the value of rx_buffer_head but before writing
// the value to rx_buffer_tail; the previous value of rx_buffer_head
// may be written to rx_buffer_tail, making it appear as if the buffer
// don't reverse this or there may be problems if the RX interrupt
// occurs after reading the value of rx_buffer_head but before writing
// the value to rx_buffer_tail; the previous value of rx_buffer_head
// may be written to rx_buffer_tail, making it appear as if the buffer
// were full, not empty.
_rx_buffer->head = _rx_buffer->tail;
}
//
// Drakelive 2012-09-04
//
#if ARDUINO >= 100
size_t HardwareSerial::write(uint8_t c)
{
while (!((*_ucsra) & (1 << _udre)))
;
*_udr = c;
}
#else
void HardwareSerial::write(uint8_t c)
{
while (!((*_ucsra) & (1 << _udre)))
;
*_udr = c;
}
#endif
// Drakelive 2012-09-04
// Preinstantiate Objects //////////////////////////////////////////////////////
HardwareSerial Serial(&rx_buffer, &UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UDR0, RXEN0, TXEN0, RXCIE0, UDRE0, U2X0);
#endif // whole file

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/*
HardwareSerial.h - Hardware serial library for Wiring
Copyright (c) 2006 Nicholas Zambetti. 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
Modified 28 September 2010 by Mark Sproul
*/
#ifndef HardwareSerial_h
#define HardwareSerial_h
#include <inttypes.h>
#include "Stream.h"
struct ring_buffer;
class HardwareSerial : public Stream
{
private:
ring_buffer *_rx_buffer;
volatile uint8_t *_ubrrh;
volatile uint8_t *_ubrrl;
volatile uint8_t *_ucsra;
volatile uint8_t *_ucsrb;
volatile uint8_t *_udr;
uint8_t _rxen;
uint8_t _txen;
uint8_t _rxcie;
uint8_t _udre;
uint8_t _u2x;
public:
HardwareSerial(ring_buffer *rx_buffer,
volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
volatile uint8_t *udr,
uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre, uint8_t u2x);
void begin(long);
void end();
virtual int available(void);
virtual int peek(void);
virtual int read(void);
virtual void flush(void);
//
// Drakelive 2012-09-04
//
#if ARDUINO >= 100
virtual size_t write(uint8_t);
#else
virtual void write(uint8_t);
#endif
// Drakelive 2012-09-04
using Print::write; // pull in write(str) and write(buf, size) from Print
};
#if defined(UBRRH) || defined(UBRR0H)
extern HardwareSerial Serial;
#elif defined(USBCON)
#include "usb_api.h"
#endif
#if defined(UBRR1H)
extern HardwareSerial Serial1;
#endif
#if defined(UBRR2H)
extern HardwareSerial Serial2;
#endif
#if defined(UBRR3H)
extern HardwareSerial Serial3;
#endif
#endif

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/*
Print.cpp - Base class that provides print() and println()
Copyright (c) 2008 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
Modified 23 November 2006 by David A. Mellis
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "wiring.h"
#include "Print.h"
// Public Methods //////////////////////////////////////////////////////////////
/* default implementation: may be overridden */
void Print::write(const char *str)
{
while (*str)
write(*str++);
}
/* default implementation: may be overridden */
void Print::write(const uint8_t *buffer, size_t size)
{
while (size--)
write(*buffer++);
}
void Print::print(const String &s)
{
for (int i = 0; i < s.length(); i++) {
write(s[i]);
}
}
void Print::print(const char str[])
{
write(str);
}
void Print::print(char c, int base)
{
print((long) c, base);
}
void Print::print(unsigned char b, int base)
{
print((unsigned long) b, base);
}
void Print::print(int n, int base)
{
print((long) n, base);
}
void Print::print(unsigned int n, int base)
{
print((unsigned long) n, base);
}
void Print::print(long n, int base)
{
if (base == 0) {
write(n);
} else if (base == 10) {
if (n < 0) {
print('-');
n = -n;
}
printNumber(n, 10);
} else {
printNumber(n, base);
}
}
void Print::print(unsigned long n, int base)
{
if (base == 0) write(n);
else printNumber(n, base);
}
void Print::print(double n, int digits)
{
printFloat(n, digits);
}
void Print::println(void)
{
print('\r');
print('\n');
}
void Print::println(const String &s)
{
print(s);
println();
}
void Print::println(const char c[])
{
print(c);
println();
}
void Print::println(char c, int base)
{
print(c, base);
println();
}
void Print::println(unsigned char b, int base)
{
print(b, base);
println();
}
void Print::println(int n, int base)
{
print(n, base);
println();
}
void Print::println(unsigned int n, int base)
{
print(n, base);
println();
}
void Print::println(long n, int base)
{
print(n, base);
println();
}
void Print::println(unsigned long n, int base)
{
print(n, base);
println();
}
void Print::println(double n, int digits)
{
print(n, digits);
println();
}
// Private Methods /////////////////////////////////////////////////////////////
void Print::printNumber(unsigned long n, uint8_t base)
{
unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars.
unsigned long i = 0;
if (n == 0) {
print('0');
return;
}
while (n > 0) {
buf[i++] = n % base;
n /= base;
}
for (; i > 0; i--)
print((char) (buf[i - 1] < 10 ?
'0' + buf[i - 1] :
'A' + buf[i - 1] - 10));
}
void Print::printFloat(double number, uint8_t digits)
{
// Handle negative numbers
if (number < 0.0)
{
print('-');
number = -number;
}
// Round correctly so that print(1.999, 2) prints as "2.00"
double rounding = 0.5;
for (uint8_t i=0; i<digits; ++i)
rounding /= 10.0;
number += rounding;
// Extract the integer part of the number and print it
unsigned long int_part = (unsigned long)number;
double remainder = number - (double)int_part;
print(int_part);
// Print the decimal point, but only if there are digits beyond
if (digits > 0)
print(".");
// Extract digits from the remainder one at a time
while (digits-- > 0)
{
remainder *= 10.0;
int toPrint = int(remainder);
print(toPrint);
remainder -= toPrint;
}
}

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/*
Print.h - Base class that provides print() and println()
Copyright (c) 2008 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 Print_h
#define Print_h
#include <inttypes.h>
#include <stdio.h> // for size_t
#include "WString.h"
#define DEC 10
#define HEX 16
#define OCT 8
#define BIN 2
#define BYTE 0
class Print
{
private:
void printNumber(unsigned long, uint8_t);
void printFloat(double, uint8_t);
public:
//
// Drakelive 2012-09-04
//
#if ARDUINO >= 100
virtual size_t write(uint8_t) = 0;
#else
virtual void write(uint8_t) = 0;
#endif
// Drakelive 2012-09-04
virtual void write(const char *str);
virtual void write(const uint8_t *buffer, size_t size);
void print(const String &);
void print(const char[]);
void print(char, int = BYTE);
void print(unsigned char, int = BYTE);
void print(int, int = DEC);
void print(unsigned int, int = DEC);
void print(long, int = DEC);
void print(unsigned long, int = DEC);
void print(double, int = 2);
void println(const String &s);
void println(const char[]);
void println(char, int = BYTE);
void println(unsigned char, int = BYTE);
void println(int, int = DEC);
void println(unsigned int, int = DEC);
void println(long, int = DEC);
void println(unsigned long, int = DEC);
void println(double, int = 2);
void println(void);
};
#endif

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/*
Stream.h - base class for character-based streams.
Copyright (c) 2010 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 Stream_h
#define Stream_h
#include <inttypes.h>
#include "Print.h"
class Stream : public Print
{
public:
virtual int available() = 0;
virtual int read() = 0;
virtual int peek() = 0;
virtual void flush() = 0;
};
#endif

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/* Tone.cpp
A Tone Generator Library
Written by Brett Hagman
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
Version Modified By Date Comments
------- ----------- -------- --------
0001 B Hagman 09/08/02 Initial coding
0002 B Hagman 09/08/18 Multiple pins
0003 B Hagman 09/08/18 Moved initialization from constructor to begin()
0004 B Hagman 09/09/26 Fixed problems with ATmega8
0005 B Hagman 09/11/23 Scanned prescalars for best fit on 8 bit timers
09/11/25 Changed pin toggle method to XOR
09/11/25 Fixed timer0 from being excluded
0006 D Mellis 09/12/29 Replaced objects with functions
0007 M Sproul 10/08/29 Changed #ifdefs from cpu to register
*************************************************/
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include "wiring.h"
#include "pins_arduino.h"
#if defined(__AVR_ATmega8__) || defined(__AVR_ATmega128__)
#define TCCR2A TCCR2
#define TCCR2B TCCR2
#define COM2A1 COM21
#define COM2A0 COM20
#define OCR2A OCR2
#define TIMSK2 TIMSK
#define OCIE2A OCIE2
#define TIMER2_COMPA_vect TIMER2_COMP_vect
#define TIMSK1 TIMSK
#endif
// timerx_toggle_count:
// > 0 - duration specified
// = 0 - stopped
// < 0 - infinitely (until stop() method called, or new play() called)
#if !defined(__AVR_ATmega8__)
volatile long timer0_toggle_count;
volatile uint8_t *timer0_pin_port;
volatile uint8_t timer0_pin_mask;
#endif
volatile long timer1_toggle_count;
volatile uint8_t *timer1_pin_port;
volatile uint8_t timer1_pin_mask;
volatile long timer2_toggle_count;
volatile uint8_t *timer2_pin_port;
volatile uint8_t timer2_pin_mask;
#if defined(TIMSK3)
volatile long timer3_toggle_count;
volatile uint8_t *timer3_pin_port;
volatile uint8_t timer3_pin_mask;
#endif
#if defined(TIMSK4)
volatile long timer4_toggle_count;
volatile uint8_t *timer4_pin_port;
volatile uint8_t timer4_pin_mask;
#endif
#if defined(TIMSK5)
volatile long timer5_toggle_count;
volatile uint8_t *timer5_pin_port;
volatile uint8_t timer5_pin_mask;
#endif
// MLS: This does not make sense, the 3 options are the same
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define AVAILABLE_TONE_PINS 1
const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 3, 4, 5, 1, 0 */ };
static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255, 255, 255, 255 */ };
#elif defined(__AVR_ATmega8__)
#define AVAILABLE_TONE_PINS 1
const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1 */ };
static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255 */ };
#else
#define AVAILABLE_TONE_PINS 1
// Leave timer 0 to last.
const uint8_t PROGMEM tone_pin_to_timer_PGM[] = { 2 /*, 1, 0 */ };
static uint8_t tone_pins[AVAILABLE_TONE_PINS] = { 255 /*, 255, 255 */ };
#endif
static int8_t toneBegin(uint8_t _pin)
{
int8_t _timer = -1;
// if we're already using the pin, the timer should be configured.
for (int i = 0; i < AVAILABLE_TONE_PINS; i++) {
if (tone_pins[i] == _pin) {
return pgm_read_byte(tone_pin_to_timer_PGM + i);
}
}
// search for an unused timer.
for (int i = 0; i < AVAILABLE_TONE_PINS; i++) {
if (tone_pins[i] == 255) {
tone_pins[i] = _pin;
_timer = pgm_read_byte(tone_pin_to_timer_PGM + i);
break;
}
}
if (_timer != -1)
{
// Set timer specific stuff
// All timers in CTC mode
// 8 bit timers will require changing prescalar values,
// whereas 16 bit timers are set to either ck/1 or ck/64 prescalar
switch (_timer)
{
#if defined(TCCR0A) && defined(TCCR0B)
case 0:
// 8 bit timer
TCCR0A = 0;
TCCR0B = 0;
bitWrite(TCCR0A, WGM01, 1);
bitWrite(TCCR0B, CS00, 1);
timer0_pin_port = portOutputRegister(digitalPinToPort(_pin));
timer0_pin_mask = digitalPinToBitMask(_pin);
break;
#endif
#if defined(TCCR1A) && defined(TCCR1B) && defined(WGM12)
case 1:
// 16 bit timer
TCCR1A = 0;
TCCR1B = 0;
bitWrite(TCCR1B, WGM12, 1);
bitWrite(TCCR1B, CS10, 1);
timer1_pin_port = portOutputRegister(digitalPinToPort(_pin));
timer1_pin_mask = digitalPinToBitMask(_pin);
break;
#endif
#if defined(TCCR2A) && defined(TCCR2B)
case 2:
// 8 bit timer
TCCR2A = 0;
TCCR2B = 0;
bitWrite(TCCR2A, WGM21, 1);
bitWrite(TCCR2B, CS20, 1);
timer2_pin_port = portOutputRegister(digitalPinToPort(_pin));
timer2_pin_mask = digitalPinToBitMask(_pin);
break;
#endif
#if defined(TCCR3A) && defined(TCCR3B) && defined(TIMSK3)
case 3:
// 16 bit timer
TCCR3A = 0;
TCCR3B = 0;
bitWrite(TCCR3B, WGM32, 1);
bitWrite(TCCR3B, CS30, 1);
timer3_pin_port = portOutputRegister(digitalPinToPort(_pin));
timer3_pin_mask = digitalPinToBitMask(_pin);
break;
#endif
#if defined(TCCR4A) && defined(TCCR4B) && defined(TIMSK4)
case 4:
// 16 bit timer
TCCR4A = 0;
TCCR4B = 0;
#if defined(WGM42)
bitWrite(TCCR4B, WGM42, 1);
#elif defined(CS43)
#warning this may not be correct
// atmega32u4
bitWrite(TCCR4B, CS43, 1);
#endif
bitWrite(TCCR4B, CS40, 1);
timer4_pin_port = portOutputRegister(digitalPinToPort(_pin));
timer4_pin_mask = digitalPinToBitMask(_pin);
break;
#endif
#if defined(TCCR5A) && defined(TCCR5B) && defined(TIMSK5)
case 5:
// 16 bit timer
TCCR5A = 0;
TCCR5B = 0;
bitWrite(TCCR5B, WGM52, 1);
bitWrite(TCCR5B, CS50, 1);
timer5_pin_port = portOutputRegister(digitalPinToPort(_pin));
timer5_pin_mask = digitalPinToBitMask(_pin);
break;
#endif
}
}
return _timer;
}
// frequency (in hertz) and duration (in milliseconds).
void tone(uint8_t _pin, unsigned int frequency, unsigned long duration)
{
uint8_t prescalarbits = 0b001;
long toggle_count = 0;
uint32_t ocr = 0;
int8_t _timer;
_timer = toneBegin(_pin);
if (_timer >= 0)
{
// Set the pinMode as OUTPUT
pinMode(_pin, OUTPUT);
// if we are using an 8 bit timer, scan through prescalars to find the best fit
if (_timer == 0 || _timer == 2)
{
ocr = F_CPU / frequency / 2 - 1;
prescalarbits = 0b001; // ck/1: same for both timers
if (ocr > 255)
{
ocr = F_CPU / frequency / 2 / 8 - 1;
prescalarbits = 0b010; // ck/8: same for both timers
if (_timer == 2 && ocr > 255)
{
ocr = F_CPU / frequency / 2 / 32 - 1;
prescalarbits = 0b011;
}
if (ocr > 255)
{
ocr = F_CPU / frequency / 2 / 64 - 1;
prescalarbits = _timer == 0 ? 0b011 : 0b100;
if (_timer == 2 && ocr > 255)
{
ocr = F_CPU / frequency / 2 / 128 - 1;
prescalarbits = 0b101;
}
if (ocr > 255)
{
ocr = F_CPU / frequency / 2 / 256 - 1;
prescalarbits = _timer == 0 ? 0b100 : 0b110;
if (ocr > 255)
{
// can't do any better than /1024
ocr = F_CPU / frequency / 2 / 1024 - 1;
prescalarbits = _timer == 0 ? 0b101 : 0b111;
}
}
}
}
#if defined(TCCR0B)
if (_timer == 0)
{
TCCR0B = prescalarbits;
}
else
#endif
#if defined(TCCR2B)
{
TCCR2B = prescalarbits;
}
#else
{
// dummy place holder to make the above ifdefs work
}
#endif
}
else
{
// two choices for the 16 bit timers: ck/1 or ck/64
ocr = F_CPU / frequency / 2 - 1;
prescalarbits = 0b001;
if (ocr > 0xffff)
{
ocr = F_CPU / frequency / 2 / 64 - 1;
prescalarbits = 0b011;
}
if (_timer == 1)
{
#if defined(TCCR1B)
TCCR1B = (TCCR1B & 0b11111000) | prescalarbits;
#endif
}
#if defined(TCCR3B)
else if (_timer == 3)
TCCR3B = (TCCR3B & 0b11111000) | prescalarbits;
#endif
#if defined(TCCR4B)
else if (_timer == 4)
TCCR4B = (TCCR4B & 0b11111000) | prescalarbits;
#endif
#if defined(TCCR5B)
else if (_timer == 5)
TCCR5B = (TCCR5B & 0b11111000) | prescalarbits;
#endif
}
// Calculate the toggle count
if (duration > 0)
{
toggle_count = 2 * frequency * duration / 1000;
}
else
{
toggle_count = -1;
}
// Set the OCR for the given timer,
// set the toggle count,
// then turn on the interrupts
switch (_timer)
{
#if defined(OCR0A) && defined(TIMSK0) && defined(OCIE0A)
case 0:
OCR0A = ocr;
timer0_toggle_count = toggle_count;
bitWrite(TIMSK0, OCIE0A, 1);
break;
#endif
case 1:
#if defined(OCR1A) && defined(TIMSK1) && defined(OCIE1A)
OCR1A = ocr;
timer1_toggle_count = toggle_count;
bitWrite(TIMSK1, OCIE1A, 1);
#elif defined(OCR1A) && defined(TIMSK) && defined(OCIE1A)
// this combination is for at least the ATmega32
OCR1A = ocr;
timer1_toggle_count = toggle_count;
bitWrite(TIMSK, OCIE1A, 1);
#endif
break;
#if defined(OCR2A) && defined(TIMSK2) && defined(OCIE2A)
case 2:
OCR2A = ocr;
timer2_toggle_count = toggle_count;
bitWrite(TIMSK2, OCIE2A, 1);
break;
#endif
#if defined(TIMSK3)
case 3:
OCR3A = ocr;
timer3_toggle_count = toggle_count;
bitWrite(TIMSK3, OCIE3A, 1);
break;
#endif
#if defined(TIMSK4)
case 4:
OCR4A = ocr;
timer4_toggle_count = toggle_count;
bitWrite(TIMSK4, OCIE4A, 1);
break;
#endif
#if defined(OCR5A) && defined(TIMSK5) && defined(OCIE5A)
case 5:
OCR5A = ocr;
timer5_toggle_count = toggle_count;
bitWrite(TIMSK5, OCIE5A, 1);
break;
#endif
}
}
}
// XXX: this function only works properly for timer 2 (the only one we use
// currently). for the others, it should end the tone, but won't restore
// proper PWM functionality for the timer.
void disableTimer(uint8_t _timer)
{
switch (_timer)
{
case 0:
#if defined(TIMSK0)
TIMSK0 = 0;
#elif defined(TIMSK)
TIMSK = 0; // atmega32
#endif
break;
#if defined(TIMSK1) && defined(OCIE1A)
case 1:
bitWrite(TIMSK1, OCIE1A, 0);
break;
#endif
case 2:
#if defined(TIMSK2) && defined(OCIE2A)
bitWrite(TIMSK2, OCIE2A, 0); // disable interrupt
#endif
#if defined(TCCR2A) && defined(WGM20)
TCCR2A = (1 << WGM20);
#endif
#if defined(TCCR2B) && defined(CS22)
TCCR2B = (TCCR2B & 0b11111000) | (1 << CS22);
#endif
#if defined(OCR2A)
OCR2A = 0;
#endif
break;
#if defined(TIMSK3)
case 3:
TIMSK3 = 0;
break;
#endif
#if defined(TIMSK4)
case 4:
TIMSK4 = 0;
break;
#endif
#if defined(TIMSK5)
case 5:
TIMSK5 = 0;
break;
#endif
}
}
void noTone(uint8_t _pin)
{
int8_t _timer = -1;
for (int i = 0; i < AVAILABLE_TONE_PINS; i++) {
if (tone_pins[i] == _pin) {
_timer = pgm_read_byte(tone_pin_to_timer_PGM + i);
tone_pins[i] = 255;
}
}
disableTimer(_timer);
digitalWrite(_pin, 0);
}
#if 0
#if !defined(__AVR_ATmega8__)
ISR(TIMER0_COMPA_vect)
{
if (timer0_toggle_count != 0)
{
// toggle the pin
*timer0_pin_port ^= timer0_pin_mask;
if (timer0_toggle_count > 0)
timer0_toggle_count--;
}
else
{
disableTimer(0);
*timer0_pin_port &= ~(timer0_pin_mask); // keep pin low after stop
}
}
#endif
ISR(TIMER1_COMPA_vect)
{
if (timer1_toggle_count != 0)
{
// toggle the pin
*timer1_pin_port ^= timer1_pin_mask;
if (timer1_toggle_count > 0)
timer1_toggle_count--;
}
else
{
disableTimer(1);
*timer1_pin_port &= ~(timer1_pin_mask); // keep pin low after stop
}
}
#endif
ISR(TIMER2_COMPA_vect)
{
if (timer2_toggle_count != 0)
{
// toggle the pin
*timer2_pin_port ^= timer2_pin_mask;
if (timer2_toggle_count > 0)
timer2_toggle_count--;
}
else
{
// need to call noTone() so that the tone_pins[] entry is reset, so the
// timer gets initialized next time we call tone().
// XXX: this assumes timer 2 is always the first one used.
noTone(tone_pins[0]);
// disableTimer(2);
// *timer2_pin_port &= ~(timer2_pin_mask); // keep pin low after stop
}
}
//#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#if 0
ISR(TIMER3_COMPA_vect)
{
if (timer3_toggle_count != 0)
{
// toggle the pin
*timer3_pin_port ^= timer3_pin_mask;
if (timer3_toggle_count > 0)
timer3_toggle_count--;
}
else
{
disableTimer(3);
*timer3_pin_port &= ~(timer3_pin_mask); // keep pin low after stop
}
}
ISR(TIMER4_COMPA_vect)
{
if (timer4_toggle_count != 0)
{
// toggle the pin
*timer4_pin_port ^= timer4_pin_mask;
if (timer4_toggle_count > 0)
timer4_toggle_count--;
}
else
{
disableTimer(4);
*timer4_pin_port &= ~(timer4_pin_mask); // keep pin low after stop
}
}
ISR(TIMER5_COMPA_vect)
{
if (timer5_toggle_count != 0)
{
// toggle the pin
*timer5_pin_port ^= timer5_pin_mask;
if (timer5_toggle_count > 0)
timer5_toggle_count--;
}
else
{
disableTimer(5);
*timer5_pin_port &= ~(timer5_pin_mask); // keep pin low after stop
}
}
#endif

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/*
WCharacter.h - Character utility functions for Wiring & Arduino
Copyright (c) 2010 Hernando Barragan. 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 Character_h
#define Character_h
#include <ctype.h>
// WCharacter.h prototypes
inline boolean isAlphaNumeric(int c) __attribute__((always_inline));
inline boolean isAlpha(int c) __attribute__((always_inline));
inline boolean isAscii(int c) __attribute__((always_inline));
inline boolean isWhitespace(int c) __attribute__((always_inline));
inline boolean isControl(int c) __attribute__((always_inline));
inline boolean isDigit(int c) __attribute__((always_inline));
inline boolean isGraph(int c) __attribute__((always_inline));
inline boolean isLowerCase(int c) __attribute__((always_inline));
inline boolean isPrintable(int c) __attribute__((always_inline));
inline boolean isPunct(int c) __attribute__((always_inline));
inline boolean isSpace(int c) __attribute__((always_inline));
inline boolean isUpperCase(int c) __attribute__((always_inline));
inline boolean isHexadecimalDigit(int c) __attribute__((always_inline));
inline int toAscii(int c) __attribute__((always_inline));
inline int toLowerCase(int c) __attribute__((always_inline));
inline int toUpperCase(int c)__attribute__((always_inline));
// Checks for an alphanumeric character.
// It is equivalent to (isalpha(c) || isdigit(c)).
inline boolean isAlphaNumeric(int c)
{
return ( isalnum(c) == 0 ? false : true);
}
// Checks for an alphabetic character.
// It is equivalent to (isupper(c) || islower(c)).
inline boolean isAlpha(int c)
{
return ( isalpha(c) == 0 ? false : true);
}
// Checks whether c is a 7-bit unsigned char value
// that fits into the ASCII character set.
inline boolean isAscii(int c)
{
return ( isascii (c) == 0 ? false : true);
}
// Checks for a blank character, that is, a space or a tab.
inline boolean isWhitespace(int c)
{
return ( isblank (c) == 0 ? false : true);
}
// Checks for a control character.
inline boolean isControl(int c)
{
return ( iscntrl (c) == 0 ? false : true);
}
// Checks for a digit (0 through 9).
inline boolean isDigit(int c)
{
return ( isdigit (c) == 0 ? false : true);
}
// Checks for any printable character except space.
inline boolean isGraph(int c)
{
return ( isgraph (c) == 0 ? false : true);
}
// Checks for a lower-case character.
inline boolean isLowerCase(int c)
{
return (islower (c) == 0 ? false : true);
}
// Checks for any printable character including space.
inline boolean isPrintable(int c)
{
return ( isprint (c) == 0 ? false : true);
}
// Checks for any printable character which is not a space
// or an alphanumeric character.
inline boolean isPunct(int c)
{
return ( ispunct (c) == 0 ? false : true);
}
// Checks for white-space characters. For the avr-libc library,
// these are: space, formfeed ('\f'), newline ('\n'), carriage
// return ('\r'), horizontal tab ('\t'), and vertical tab ('\v').
inline boolean isSpace(int c)
{
return ( isspace (c) == 0 ? false : true);
}
// Checks for an uppercase letter.
inline boolean isUpperCase(int c)
{
return ( isupper (c) == 0 ? false : true);
}
// Checks for a hexadecimal digits, i.e. one of 0 1 2 3 4 5 6 7
// 8 9 a b c d e f A B C D E F.
inline boolean isHexadecimalDigit(int c)
{
return ( isxdigit (c) == 0 ? false : true);
}
// Converts c to a 7-bit unsigned char value that fits into the
// ASCII character set, by clearing the high-order bits.
inline int toAscii(int c)
{
return toascii (c);
}
// Warning:
// Many people will be unhappy if you use this function.
// This function will convert accented letters into random
// characters.
// Converts the letter c to lower case, if possible.
inline int toLowerCase(int c)
{
return tolower (c);
}
// Converts the letter c to upper case, if possible.
inline int toUpperCase(int c)
{
return toupper (c);
}
#endif

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#include "wiring.h"

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/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Wiring project - http://wiring.uniandes.edu.co
Copyright (c) 2004-05 Hernando Barragan
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
Modified 24 November 2006 by David A. Mellis
Modified 1 August 2010 by Mark Sproul
*/
#include <inttypes.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#include <stdio.h>
#include "WConstants.h"
#include "wiring_private.h"
volatile static voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS];
// volatile static voidFuncPtr twiIntFunc;
void attachInterrupt(uint8_t interruptNum, void (*userFunc)(void), int mode) {
if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
intFunc[interruptNum] = userFunc;
// Configure the interrupt mode (trigger on low input, any change, rising
// edge, or falling edge). The mode constants were chosen to correspond
// to the configuration bits in the hardware register, so we simply shift
// the mode into place.
// Enable the interrupt.
switch (interruptNum) {
#if defined(EICRA) && defined(EICRB) && defined(EIMSK)
case 2:
EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
EIMSK |= (1 << INT0);
break;
case 3:
EICRA = (EICRA & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
EIMSK |= (1 << INT1);
break;
case 4:
EICRA = (EICRA & ~((1 << ISC20) | (1 << ISC21))) | (mode << ISC20);
EIMSK |= (1 << INT2);
break;
case 5:
EICRA = (EICRA & ~((1 << ISC30) | (1 << ISC31))) | (mode << ISC30);
EIMSK |= (1 << INT3);
break;
case 0:
EICRB = (EICRB & ~((1 << ISC40) | (1 << ISC41))) | (mode << ISC40);
EIMSK |= (1 << INT4);
break;
case 1:
EICRB = (EICRB & ~((1 << ISC50) | (1 << ISC51))) | (mode << ISC50);
EIMSK |= (1 << INT5);
break;
case 6:
EICRB = (EICRB & ~((1 << ISC60) | (1 << ISC61))) | (mode << ISC60);
EIMSK |= (1 << INT6);
break;
case 7:
EICRB = (EICRB & ~((1 << ISC70) | (1 << ISC71))) | (mode << ISC70);
EIMSK |= (1 << INT7);
break;
#else
case 0:
#if defined(EICRA) && defined(ISC00) && defined(EIMSK)
EICRA = (EICRA & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
EIMSK |= (1 << INT0);
#elif defined(MCUCR) && defined(ISC00) && defined(GICR)
MCUCR = (MCUCR & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
GICR |= (1 << INT0);
#elif defined(MCUCR) && defined(ISC00) && defined(GIMSK)
MCUCR = (MCUCR & ~((1 << ISC00) | (1 << ISC01))) | (mode << ISC00);
GIMSK |= (1 << INT0);
#else
#error attachInterrupt not finished for this CPU (case 0)
#endif
break;
case 1:
#if defined(EICRA) && defined(ISC10) && defined(ISC11) && defined(EIMSK)
EICRA = (EICRA & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
EIMSK |= (1 << INT1);
#elif defined(MCUCR) && defined(ISC10) && defined(ISC11) && defined(GICR)
MCUCR = (MCUCR & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
GICR |= (1 << INT1);
#elif defined(MCUCR) && defined(ISC10) && defined(GIMSK) && defined(GIMSK)
MCUCR = (MCUCR & ~((1 << ISC10) | (1 << ISC11))) | (mode << ISC10);
GIMSK |= (1 << INT1);
#else
#warning attachInterrupt may need some more work for this cpu (case 1)
#endif
break;
#endif
}
}
}
void detachInterrupt(uint8_t interruptNum) {
if(interruptNum < EXTERNAL_NUM_INTERRUPTS) {
// Disable the interrupt. (We can't assume that interruptNum is equal
// to the number of the EIMSK bit to clear, as this isn't true on the
// ATmega8. There, INT0 is 6 and INT1 is 7.)
switch (interruptNum) {
#if defined(EICRA) && defined(EICRB) && defined(EIMSK)
case 2:
EIMSK &= ~(1 << INT0);
break;
case 3:
EIMSK &= ~(1 << INT1);
break;
case 4:
EIMSK &= ~(1 << INT2);
break;
case 5:
EIMSK &= ~(1 << INT3);
break;
case 0:
EIMSK &= ~(1 << INT4);
break;
case 1:
EIMSK &= ~(1 << INT5);
break;
case 6:
EIMSK &= ~(1 << INT6);
break;
case 7:
EIMSK &= ~(1 << INT7);
break;
#else
case 0:
#if defined(EIMSK) && defined(INT0)
EIMSK &= ~(1 << INT0);
#elif defined(GICR) && defined(ISC00)
GICR &= ~(1 << INT0); // atmega32
#elif defined(GIMSK) && defined(INT0)
GIMSK &= ~(1 << INT0);
#else
#error detachInterrupt not finished for this cpu
#endif
break;
case 1:
#if defined(EIMSK) && defined(INT1)
EIMSK &= ~(1 << INT1);
#elif defined(GICR) && defined(INT1)
GICR &= ~(1 << INT1); // atmega32
#elif defined(GIMSK) && defined(INT1)
GIMSK &= ~(1 << INT1);
#else
#warning detachInterrupt may need some more work for this cpu (case 1)
#endif
break;
#endif
}
intFunc[interruptNum] = 0;
}
}
/*
void attachInterruptTwi(void (*userFunc)(void) ) {
twiIntFunc = userFunc;
}
*/
#if defined(EICRA) && defined(EICRB)
SIGNAL(INT0_vect) {
if(intFunc[EXTERNAL_INT_2])
intFunc[EXTERNAL_INT_2]();
}
SIGNAL(INT1_vect) {
if(intFunc[EXTERNAL_INT_3])
intFunc[EXTERNAL_INT_3]();
}
SIGNAL(INT2_vect) {
if(intFunc[EXTERNAL_INT_4])
intFunc[EXTERNAL_INT_4]();
}
SIGNAL(INT3_vect) {
if(intFunc[EXTERNAL_INT_5])
intFunc[EXTERNAL_INT_5]();
}
SIGNAL(INT4_vect) {
if(intFunc[EXTERNAL_INT_0])
intFunc[EXTERNAL_INT_0]();
}
SIGNAL(INT5_vect) {
if(intFunc[EXTERNAL_INT_1])
intFunc[EXTERNAL_INT_1]();
}
SIGNAL(INT6_vect) {
if(intFunc[EXTERNAL_INT_6])
intFunc[EXTERNAL_INT_6]();
}
SIGNAL(INT7_vect) {
if(intFunc[EXTERNAL_INT_7])
intFunc[EXTERNAL_INT_7]();
}
#else
SIGNAL(INT0_vect) {
if(intFunc[EXTERNAL_INT_0])
intFunc[EXTERNAL_INT_0]();
}
SIGNAL(INT1_vect) {
if(intFunc[EXTERNAL_INT_1])
intFunc[EXTERNAL_INT_1]();
}
#endif
/*
SIGNAL(SIG_2WIRE_SERIAL) {
if(twiIntFunc)
twiIntFunc();
}
*/

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/* -*- mode: jde; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Wiring project - http://wiring.org.co
Copyright (c) 2004-06 Hernando Barragan
Modified 13 August 2006, David A. Mellis for Arduino - http://www.arduino.cc/
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
$Id$
*/
extern "C" {
#include "stdlib.h"
}
void randomSeed(unsigned int 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; }

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#ifndef WProgram_h
#define WProgram_h
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <avr/interrupt.h>
#include "wiring.h"
#ifdef __cplusplus
#include "WCharacter.h"
#include "WString.h"
#include "HardwareSerial.h"
uint16_t makeWord(uint16_t w);
uint16_t makeWord(byte h, byte l);
#define word(...) makeWord(__VA_ARGS__)
unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);
void tone(uint8_t _pin, unsigned int frequency, unsigned long duration = 0);
void noTone(uint8_t _pin);
// WMath prototypes
long random(long);
long random(long, long);
void randomSeed(unsigned int);
long map(long, long, long, long, long);
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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;
#else
const static uint8_t A0 = 14;
const static uint8_t A1 = 15;
const static uint8_t A2 = 16;
const static uint8_t A3 = 17;
const static uint8_t A4 = 18;
const static uint8_t A5 = 19;
const static uint8_t A6 = 20;
const static uint8_t A7 = 21;
#endif
#endif
#endif

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/*
WString.cpp - String library for Wiring & Arduino
Copyright (c) 2009-10 Hernando Barragan. All rights 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
*/
#include <stdlib.h>
#include "WProgram.h"
#include "WString.h"
String::String( const char *value )
{
if ( value == NULL )
value = "";
getBuffer( _length = strlen( value ) );
if ( _buffer != NULL )
strcpy( _buffer, value );
}
String::String( const String &value )
{
getBuffer( _length = value._length );
if ( _buffer != NULL )
strcpy( _buffer, value._buffer );
}
String::String( const char value )
{
_length = 1;
getBuffer(1);
if ( _buffer != NULL ) {
_buffer[0] = value;
_buffer[1] = 0;
}
}
String::String( const unsigned char value )
{
_length = 1;
getBuffer(1);
if ( _buffer != NULL) {
_buffer[0] = value;
_buffer[1] = 0;
}
}
String::String( const int value, const int base )
{
char buf[33];
itoa((signed long)value, buf, base);
getBuffer( _length = strlen(buf) );
if ( _buffer != NULL )
strcpy( _buffer, buf );
}
String::String( const unsigned int value, const int base )
{
char buf[33];
ultoa((unsigned long)value, buf, base);
getBuffer( _length = strlen(buf) );
if ( _buffer != NULL )
strcpy( _buffer, buf );
}
String::String( const long value, const int base )
{
char buf[33];
ltoa(value, buf, base);
getBuffer( _length = strlen(buf) );
if ( _buffer != NULL )
strcpy( _buffer, buf );
}
String::String( const unsigned long value, const int base )
{
char buf[33];
ultoa(value, buf, 10);
getBuffer( _length = strlen(buf) );
if ( _buffer != NULL )
strcpy( _buffer, buf );
}
char String::charAt( unsigned int loc ) const
{
return operator[]( loc );
}
void String::setCharAt( unsigned int loc, const char aChar )
{
if(_buffer == NULL) return;
if(_length > loc) {
_buffer[loc] = aChar;
}
}
int String::compareTo( const String &s2 ) const
{
return strcmp( _buffer, s2._buffer );
}
const String & String::concat( const String &s2 )
{
return (*this) += s2;
}
const String & String::operator=( const String &rhs )
{
if ( this == &rhs )
return *this;
if ( rhs._length > _length )
{
free(_buffer);
getBuffer( rhs._length );
}
if ( _buffer != NULL ) {
_length = rhs._length;
strcpy( _buffer, rhs._buffer );
}
return *this;
}
//const String & String::operator+=( const char aChar )
//{
// if ( _length == _capacity )
// doubleBuffer();
//
// _buffer[ _length++ ] = aChar;
// _buffer[ _length ] = '\0';
// return *this;
//}
const String & String::operator+=( const String &other )
{
_length += other._length;
if ( _length > _capacity )
{
char *temp = (char *)realloc(_buffer, _length + 1);
if ( temp != NULL ) {
_buffer = temp;
_capacity = _length;
} else {
_length -= other._length;
return *this;
}
}
strcat( _buffer, other._buffer );
return *this;
}
int String::operator==( const String &rhs ) const
{
return ( _length == rhs._length && strcmp( _buffer, rhs._buffer ) == 0 );
}
int String::operator!=( const String &rhs ) const
{
return ( _length != rhs.length() || strcmp( _buffer, rhs._buffer ) != 0 );
}
int String::operator<( const String &rhs ) const
{
return strcmp( _buffer, rhs._buffer ) < 0;
}
int String::operator>( const String &rhs ) const
{
return strcmp( _buffer, rhs._buffer ) > 0;
}
int String::operator<=( const String &rhs ) const
{
return strcmp( _buffer, rhs._buffer ) <= 0;
}
int String::operator>=( const String & rhs ) const
{
return strcmp( _buffer, rhs._buffer ) >= 0;
}
char & String::operator[]( unsigned int index )
{
static char dummy_writable_char;
if (index >= _length || !_buffer) {
dummy_writable_char = 0;
return dummy_writable_char;
}
return _buffer[ index ];
}
char String::operator[]( unsigned int index ) const
{
// need to check for valid index, to do later
return _buffer[ index ];
}
boolean String::endsWith( const String &s2 ) const
{
if ( _length < s2._length )
return 0;
return strcmp( &_buffer[ _length - s2._length], s2._buffer ) == 0;
}
boolean String::equals( const String &s2 ) const
{
return ( _length == s2._length && strcmp( _buffer,s2._buffer ) == 0 );
}
boolean String::equalsIgnoreCase( const String &s2 ) const
{
if ( this == &s2 )
return true; //1;
else if ( _length != s2._length )
return false; //0;
return strcmp(toLowerCase()._buffer, s2.toLowerCase()._buffer) == 0;
}
String String::replace( char findChar, char replaceChar )
{
if ( _buffer == NULL ) return *this;
String theReturn = _buffer;
char* temp = theReturn._buffer;
while( (temp = strchr( temp, findChar )) != 0 )
*temp = replaceChar;
return theReturn;
}
String String::replace( const String& match, const String& replace )
{
if ( _buffer == NULL ) return *this;
String temp = _buffer, newString;
int loc;
while ( (loc = temp.indexOf( match )) != -1 )
{
newString += temp.substring( 0, loc );
newString += replace;
temp = temp.substring( loc + match._length );
}
newString += temp;
return newString;
}
int String::indexOf( char temp ) const
{
return indexOf( temp, 0 );
}
int String::indexOf( char ch, unsigned int fromIndex ) const
{
if ( fromIndex >= _length )
return -1;
const char* temp = strchr( &_buffer[fromIndex], ch );
if ( temp == NULL )
return -1;
return temp - _buffer;
}
int String::indexOf( const String &s2 ) const
{
return indexOf( s2, 0 );
}
int String::indexOf( const String &s2, unsigned int fromIndex ) const
{
if ( fromIndex >= _length )
return -1;
const char *theFind = strstr( &_buffer[ fromIndex ], s2._buffer );
if ( theFind == NULL )
return -1;
return theFind - _buffer; // pointer subtraction
}
int String::lastIndexOf( char theChar ) const
{
return lastIndexOf( theChar, _length - 1 );
}
int String::lastIndexOf( char ch, unsigned int fromIndex ) const
{
if ( fromIndex >= _length )
return -1;
char tempchar = _buffer[fromIndex + 1];
_buffer[fromIndex + 1] = '\0';
char* temp = strrchr( _buffer, ch );
_buffer[fromIndex + 1] = tempchar;
if ( temp == NULL )
return -1;
return temp - _buffer;
}
int String::lastIndexOf( const String &s2 ) const
{
return lastIndexOf( s2, _length - s2._length );
}
int String::lastIndexOf( const String &s2, unsigned int fromIndex ) const
{
// check for empty strings
if ( s2._length == 0 || s2._length - 1 > fromIndex || fromIndex >= _length )
return -1;
// matching first character
char temp = s2[ 0 ];
for ( int i = fromIndex; i >= 0; i-- )
{
if ( _buffer[ i ] == temp && (*this).substring( i, i + s2._length ).equals( s2 ) )
return i;
}
return -1;
}
boolean String::startsWith( const String &s2 ) const
{
if ( _length < s2._length )
return 0;
return startsWith( s2, 0 );
}
boolean String::startsWith( const String &s2, unsigned int offset ) const
{
if ( offset > _length - s2._length )
return 0;
return strncmp( &_buffer[offset], s2._buffer, s2._length ) == 0;
}
String String::substring( unsigned int left ) const
{
return substring( left, _length );
}
String String::substring( unsigned int left, unsigned int right ) const
{
if ( left > right )
{
int temp = right;
right = left;
left = temp;
}
if ( right > _length )
{
right = _length;
}
char temp = _buffer[ right ]; // save the replaced character
_buffer[ right ] = '\0';
String outPut = ( _buffer + left ); // pointer arithmetic
_buffer[ right ] = temp; //restore character
return outPut;
}
String String::toLowerCase() const
{
String temp = _buffer;
for ( unsigned int i = 0; i < _length; i++ )
temp._buffer[ i ] = (char)tolower( temp._buffer[ i ] );
return temp;
}
String String::toUpperCase() const
{
String temp = _buffer;
for ( unsigned int i = 0; i < _length; i++ )
temp._buffer[ i ] = (char)toupper( temp._buffer[ i ] );
return temp;
}
String String::trim() const
{
if ( _buffer == NULL ) return *this;
String temp = _buffer;
unsigned int i,j;
for ( i = 0; i < _length; i++ )
{
if ( !isspace(_buffer[i]) )
break;
}
for ( j = temp._length - 1; j > i; j-- )
{
if ( !isspace(_buffer[j]) )
break;
}
return temp.substring( i, j + 1);
}
void String::getBytes(unsigned char *buf, unsigned int bufsize)
{
if (!bufsize || !buf) return;
unsigned int len = bufsize - 1;
if (len > _length) len = _length;
strncpy((char *)buf, _buffer, len);
buf[len] = 0;
}
void String::toCharArray(char *buf, unsigned int bufsize)
{
if (!bufsize || !buf) return;
unsigned int len = bufsize - 1;
if (len > _length) len = _length;
strncpy(buf, _buffer, len);
buf[len] = 0;
}
long String::toInt() {
return atol(_buffer);
}

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/*
WString.h - String library for Wiring & Arduino
Copyright (c) 2009-10 Hernando Barragan. 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 String_h
#define String_h
//#include "WProgram.h"
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
class String
{
public:
// constructors
String( const char *value = "" );
String( const String &value );
String( const char );
String( const unsigned char );
String( const int, const int base=10);
String( const unsigned int, const int base=10 );
String( const long, const int base=10 );
String( const unsigned long, const int base=10 );
~String() { free(_buffer); _length = _capacity = 0;} //added _length = _capacity = 0;
// operators
const String & operator = ( const String &rhs );
const String & operator +=( const String &rhs );
//const String & operator +=( const char );
int operator ==( const String &rhs ) const;
int operator !=( const String &rhs ) const;
int operator < ( const String &rhs ) const;
int operator > ( const String &rhs ) const;
int operator <=( const String &rhs ) const;
int operator >=( const String &rhs ) const;
char operator []( unsigned int index ) const;
char& operator []( unsigned int index );
//operator const char *() const { return _buffer; }
// general methods
char charAt( unsigned int index ) const;
int compareTo( const String &anotherString ) const;
unsigned char endsWith( const String &suffix ) const;
unsigned char equals( const String &anObject ) const;
unsigned char equalsIgnoreCase( const String &anotherString ) const;
int indexOf( char ch ) const;
int indexOf( char ch, unsigned int fromIndex ) const;
int indexOf( const String &str ) const;
int indexOf( const String &str, unsigned int fromIndex ) const;
int lastIndexOf( char ch ) const;
int lastIndexOf( char ch, unsigned int fromIndex ) const;
int lastIndexOf( const String &str ) const;
int lastIndexOf( const String &str, unsigned int fromIndex ) const;
const unsigned int length( ) const { return _length; }
void setCharAt(unsigned int index, const char ch);
unsigned char startsWith( const String &prefix ) const;
unsigned char startsWith( const String &prefix, unsigned int toffset ) const;
String substring( unsigned int beginIndex ) const;
String substring( unsigned int beginIndex, unsigned int endIndex ) const;
String toLowerCase( ) const;
String toUpperCase( ) const;
String trim( ) const;
void getBytes(unsigned char *buf, unsigned int bufsize);
void toCharArray(char *buf, unsigned int bufsize);
long toInt( );
const String& concat( const String &str );
String replace( char oldChar, char newChar );
String replace( const String& match, const String& replace );
friend String operator + ( String lhs, const String &rhs );
protected:
char *_buffer; // the actual char array
unsigned int _capacity; // the array length minus one (for the '\0')
unsigned int _length; // the String length (not counting the '\0')
void getBuffer(unsigned int maxStrLen);
private:
};
// allocate buffer space
inline void String::getBuffer(unsigned int maxStrLen)
{
_capacity = maxStrLen;
_buffer = (char *) malloc(_capacity + 1);
if (_buffer == NULL) _length = _capacity = 0;
}
inline String operator+( String lhs, const String &rhs )
{
return lhs += rhs;
}
#endif

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#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

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#include <WProgram.h>
int main(void)
{
init();
setup();
for (;;)
loop();
return 0;
}

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/*
pins_arduino.c - pin definitions for the Arduino board
Part of Arduino / Wiring Lite
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
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
$Id: pins_arduino.c 254 2007-04-20 23:17:38Z mellis $
*/
#include <avr/io.h>
#include "wiring_private.h"
#include "pins_arduino.h"
// On the Sanguino board, digital pins are also used
// for the analog output (software PWM). Analog input
// pins are a separate set.
// ATMEL ATMEGA644P / SANGUINO
//
// +---\/---+
// INT0 (D 0) PB0 1| |40 PA0 (AI 0 / D31)
// INT1 (D 1) PB1 2| |39 PA1 (AI 1 / D30)
// INT2 (D 2) PB2 3| |38 PA2 (AI 2 / D29)
// PWM (D 3) PB3 4| |37 PA3 (AI 3 / D28)
// PWM (D 4) PB4 5| |36 PA4 (AI 4 / D27)
// MOSI (D 5) PB5 6| |35 PA5 (AI 5 / D26)
// MISO (D 6) PB6 7| |34 PA6 (AI 6 / D25)
// SCK (D 7) PB7 8| |33 PA7 (AI 7 / D24)
// RST 9| |32 AREF
// VCC 10| |31 GND
// GND 11| |30 AVCC
// XTAL2 12| |29 PC7 (D 23)
// XTAL1 13| |28 PC6 (D 22)
// RX0 (D 8) PD0 14| |27 PC5 (D 21) TDI
// TX0 (D 9) PD1 15| |26 PC4 (D 20) TDO
// RX1 (D 10) PD2 16| |25 PC3 (D 19) TMS
// TX1 (D 11) PD3 17| |24 PC2 (D 18) TCK
// PWM (D 12) PD4 18| |23 PC1 (D 17) SDA
// PWM (D 13) PD5 19| |22 PC0 (D 16) SCL
// PWM (D 14) PD6 20| |21 PD7 (D 15) PWM
// +--------+
//
#define PA 1
#define PB 2
#define PC 3
#define PD 4
// these arrays map port names (e.g. port B) to the
// appropriate addresses for various functions (e.g. reading
// and writing)
const uint8_t PROGMEM port_to_mode_PGM[] =
{
NOT_A_PORT,
(uint8_t) (uint16_t) &DDRA,
(uint8_t) (uint16_t) &DDRB,
(uint8_t) (uint16_t) &DDRC,
(uint8_t) (uint16_t) &DDRD,
};
const uint8_t PROGMEM port_to_output_PGM[] =
{
NOT_A_PORT,
(uint8_t) (uint16_t) &PORTA,
(uint8_t) (uint16_t) &PORTB,
(uint8_t) (uint16_t) &PORTC,
(uint8_t) (uint16_t) &PORTD,
};
const uint8_t PROGMEM port_to_input_PGM[] =
{
NOT_A_PORT,
(uint8_t) (uint16_t) &PINA,
(uint8_t) (uint16_t) &PINB,
(uint8_t) (uint16_t) &PINC,
(uint8_t) (uint16_t) &PIND,
};
const uint8_t PROGMEM digital_pin_to_port_PGM[] =
{
PB, /* 0 */
PB,
PB,
PB,
PB,
PB,
PB,
PB,
PD, /* 8 */
PD,
PD,
PD,
PD,
PD,
PD,
PD,
PC, /* 16 */
PC,
PC,
PC,
PC,
PC,
PC,
PC,
PA, /* 24 */
PA,
PA,
PA,
PA,
PA,
PA,
PA /* 31 */
};
const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] =
{
_BV(0), /* 0, port B */
_BV(1),
_BV(2),
_BV(3),
_BV(4),
_BV(5),
_BV(6),
_BV(7),
_BV(0), /* 8, port D */
_BV(1),
_BV(2),
_BV(3),
_BV(4),
_BV(5),
_BV(6),
_BV(7),
_BV(0), /* 16, port C */
_BV(1),
_BV(2),
_BV(3),
_BV(4),
_BV(5),
_BV(6),
_BV(7),
_BV(7), /* 24, port A */
_BV(6),
_BV(5),
_BV(4),
_BV(3),
_BV(2),
_BV(1),
_BV(0)
};
const uint8_t PROGMEM digital_pin_to_timer_PGM[] =
{
NOT_ON_TIMER, /* 0 - PB0 */
NOT_ON_TIMER, /* 1 - PB1 */
NOT_ON_TIMER, /* 2 - PB2 */
TIMER0A, /* 3 - PB3 */
TIMER0B, /* 4 - PB4 */
NOT_ON_TIMER, /* 5 - PB5 */
NOT_ON_TIMER, /* 6 - PB6 */
NOT_ON_TIMER, /* 7 - PB7 */
NOT_ON_TIMER, /* 8 - PD0 */
NOT_ON_TIMER, /* 9 - PD1 */
NOT_ON_TIMER, /* 10 - PD2 */
NOT_ON_TIMER, /* 11 - PD3 */
TIMER1B, /* 12 - PD4 */
TIMER1A, /* 13 - PD5 */
TIMER2B, /* 14 - PD6 */
TIMER2A, /* 15 - PD7 */
NOT_ON_TIMER, /* 16 - PC0 */
NOT_ON_TIMER, /* 17 - PC1 */
NOT_ON_TIMER, /* 18 - PC2 */
NOT_ON_TIMER, /* 19 - PC3 */
NOT_ON_TIMER, /* 20 - PC4 */
NOT_ON_TIMER, /* 21 - PC5 */
NOT_ON_TIMER, /* 22 - PC6 */
NOT_ON_TIMER, /* 23 - PC7 */
NOT_ON_TIMER, /* 24 - PA0 */
NOT_ON_TIMER, /* 25 - PA1 */
NOT_ON_TIMER, /* 26 - PA2 */
NOT_ON_TIMER, /* 27 - PA3 */
NOT_ON_TIMER, /* 28 - PA4 */
NOT_ON_TIMER, /* 29 - PA5 */
NOT_ON_TIMER, /* 30 - PA6 */
NOT_ON_TIMER /* 31 - PA7 */
};

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/*
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
$Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
*/
#ifndef Pins_Arduino_h
#define Pins_Arduino_h
#include <avr/pgmspace.h>
#define NOT_A_PIN 0
#define NOT_A_PORT 0
#define NOT_ON_TIMER 0
#define TIMER0A 1
#define TIMER0B 2
#define TIMER1A 3
#define TIMER1B 4
#define TIMER2 5
#define TIMER2A 6
#define TIMER2B 7
extern const uint8_t PROGMEM port_to_mode_PGM[];
extern const uint8_t PROGMEM port_to_input_PGM[];
extern const uint8_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_mask_PGM[];
extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
// Get the bit location within the hardware port of the given virtual pin.
// This comes from the pins_*.c file for the active board configuration.
//
// These perform slightly better as macros compared to inline functions
//
#define digitalPinToPort(P) ( pgm_read_byte( digital_pin_to_port_PGM + (P) ) )
#define digitalPinToBitMask(P) ( pgm_read_byte( digital_pin_to_bit_mask_PGM + (P) ) )
#define digitalPinToTimer(P) ( pgm_read_byte( digital_pin_to_timer_PGM + (P) ) )
#define analogInPinToBit(P) (P)
#define portOutputRegister(P) ( (volatile uint8_t *)( (uint16_t) pgm_read_byte( port_to_output_PGM + (P))) )
#define portInputRegister(P) ( (volatile uint8_t *)( (uint16_t) pgm_read_byte( port_to_input_PGM + (P))) )
#define portModeRegister(P) ( (volatile uint8_t *)( (uint16_t) pgm_read_byte( port_to_mode_PGM + (P))) )
#endif

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/*
wiring.c - Partial implementation of the Wiring API for the ATmega8.
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
$Id$
*/
#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.
#define MICROSECONDS_PER_TIMER0_OVERFLOW (clockCyclesToMicroseconds(64 * 256))
// the whole number of milliseconds per timer0 overflow
#define MILLIS_INC (MICROSECONDS_PER_TIMER0_OVERFLOW / 1000)
// the fractional number of milliseconds per timer0 overflow. we shift right
// by three to fit these numbers into a byte. (for the clock speeds we care
// about - 8 and 16 MHz - this doesn't lose precision.)
#define FRACT_INC ((MICROSECONDS_PER_TIMER0_OVERFLOW % 1000) >> 3)
#define FRACT_MAX (1000 >> 3)
volatile unsigned long timer0_overflow_count = 0;
volatile unsigned long timer0_millis = 0;
static unsigned char timer0_fract = 0;
SIGNAL(TIMER0_OVF_vect)
{
// copy these to local variables so they can be stored in registers
// (volatile variables must be read from memory on every access)
unsigned long m = timer0_millis;
unsigned char f = timer0_fract;
m += MILLIS_INC;
f += FRACT_INC;
if (f >= FRACT_MAX) {
f -= FRACT_MAX;
m += 1;
}
timer0_fract = f;
timer0_millis = m;
timer0_overflow_count++;
}
unsigned long millis()
{
unsigned long m;
uint8_t oldSREG = SREG;
// disable interrupts while we read timer0_millis or we might get an
// inconsistent value (e.g. in the middle of a write to timer0_millis)
cli();
m = timer0_millis;
SREG = oldSREG;
return m;
}
unsigned long micros() {
unsigned long m;
uint8_t oldSREG = SREG, t;
cli();
m = timer0_overflow_count;
#if defined(TCNT0)
t = TCNT0;
#elif defined(TCNT0L)
t = TCNT0L;
#else
#error TIMER 0 not defined
#endif
#ifdef TIFR0
if ((TIFR0 & _BV(TOV0)) && (t < 255))
m++;
#else
if ((TIFR & _BV(TOV0)) && (t < 255))
m++;
#endif
SREG = oldSREG;
return ((m << 8) + t) * (64 / clockCyclesPerMicrosecond());
}
void delay(unsigned long ms)
{
uint16_t start = (uint16_t)micros();
while (ms > 0) {
if (((uint16_t)micros() - start) >= 1000) {
ms--;
start += 1000;
}
}
}
/* Delay for the given number of microseconds. Assumes a 8 or 16 MHz clock. */
void delayMicroseconds(unsigned int us)
{
// 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 >= 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;
// the following loop takes a quarter of a microsecond (4 cycles)
// per iteration, so execute it four times for each microsecond of
// delay requested.
us <<= 2;
// account for the time taken in the preceeding commands.
us -= 2;
#else
// for the 8 MHz internal clock on the ATmega168
// 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;
// the following loop takes half of a microsecond (4 cycles)
// per iteration, so execute it twice for each microsecond of
// delay requested.
us <<= 1;
// 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
__asm__ __volatile__ (
"1: sbiw %0,1" "\n\t" // 2 cycles
"brne 1b" : "=w" (us) : "0" (us) // 2 cycles
);
}
void init()
{
// this needs to be called before setup() or some functions won't
// work there
sei();
// on the ATmega168, timer 0 is also used for fast hardware pwm
// (using phase-correct PWM would mean that timer 0 overflowed half as often
// resulting in different millis() behavior on the ATmega8 and ATmega168)
#if defined(TCCR0A) && defined(WGM01)
sbi(TCCR0A, WGM01);
sbi(TCCR0A, WGM00);
#endif
// set timer 0 prescale factor to 64
#if defined(__AVR_ATmega128__)
// CPU specific: different values for the ATmega128
sbi(TCCR0, CS02);
#elif defined(TCCR0) && defined(CS01) && defined(CS00)
// this combination is for the standard atmega8
sbi(TCCR0, CS01);
sbi(TCCR0, CS00);
#elif defined(TCCR0B) && defined(CS01) && defined(CS00)
// this combination is for the standard 168/328/1280/2560
sbi(TCCR0B, CS01);
sbi(TCCR0B, CS00);
#elif defined(TCCR0A) && defined(CS01) && defined(CS00)
// this combination is for the __AVR_ATmega645__ series
sbi(TCCR0A, CS01);
sbi(TCCR0A, CS00);
#else
#error Timer 0 prescale factor 64 not set correctly
#endif
// enable timer 0 overflow interrupt
#if defined(TIMSK) && defined(TOIE0)
sbi(TIMSK, TOIE0);
#elif defined(TIMSK0) && defined(TOIE0)
sbi(TIMSK0, TOIE0);
#else
#error Timer 0 overflow interrupt not set correctly
#endif
// timers 1 and 2 are used for phase-correct hardware pwm
// this is better for motors as it ensures an even waveform
// note, however, that fast pwm mode can achieve a frequency of up
// 8 MHz (with a 16 MHz clock) at 50% duty cycle
TCCR1B = 0;
// set timer 1 prescale factor to 64
#if defined(TCCR1B) && defined(CS11) && defined(CS10)
sbi(TCCR1B, CS11);
sbi(TCCR1B, CS10);
#elif defined(TCCR1) && defined(CS11) && defined(CS10)
sbi(TCCR1, CS11);
sbi(TCCR1, CS10);
#endif
// put timer 1 in 8-bit phase correct pwm mode
#if defined(TCCR1A) && defined(WGM10)
sbi(TCCR1A, WGM10);
#elif defined(TCCR1)
#warning this needs to be finished
#endif
// set timer 2 prescale factor to 64
#if defined(TCCR2) && defined(CS22)
sbi(TCCR2, CS22);
#elif defined(TCCR2B) && defined(CS22)
sbi(TCCR2B, CS22);
#else
#warning Timer 2 not finished (may not be present on this CPU)
#endif
// configure timer 2 for phase correct pwm (8-bit)
#if defined(TCCR2) && defined(WGM20)
sbi(TCCR2, WGM20);
#elif defined(TCCR2A) && defined(WGM20)
sbi(TCCR2A, WGM20);
#else
#warning Timer 2 not finished (may not be present on this CPU)
#endif
#if defined(TCCR3B) && defined(CS31) && defined(WGM30)
sbi(TCCR3B, CS31); // set timer 3 prescale factor to 64
sbi(TCCR3B, CS30);
sbi(TCCR3A, WGM30); // put timer 3 in 8-bit phase correct pwm mode
#endif
#if defined(TCCR4B) && defined(CS41) && defined(WGM40)
sbi(TCCR4B, CS41); // set timer 4 prescale factor to 64
sbi(TCCR4B, CS40);
sbi(TCCR4A, WGM40); // put timer 4 in 8-bit phase correct pwm mode
#endif
#if defined(TCCR5B) && defined(CS51) && defined(WGM50)
sbi(TCCR5B, CS51); // set timer 5 prescale factor to 64
sbi(TCCR5B, CS50);
sbi(TCCR5A, WGM50); // put timer 5 in 8-bit phase correct pwm mode
#endif
#if defined(ADCSRA)
// set a2d prescale factor to 128
// 16 MHz / 128 = 125 KHz, inside the desired 50-200 KHz range.
// XXX: this will not work properly for other clock speeds, and
// this code should use F_CPU to determine the prescale factor.
sbi(ADCSRA, ADPS2);
sbi(ADCSRA, ADPS1);
sbi(ADCSRA, ADPS0);
// enable a2d conversions
sbi(ADCSRA, ADEN);
#endif
// the bootloader connects pins 0 and 1 to the USART; disconnect them
// here so they can be used as normal digital i/o; they will be
// reconnected in Serial.begin()
#if defined(UCSRB)
UCSRB = 0;
#elif defined(UCSR0B)
UCSR0B = 0;
#endif
}

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/*
wiring.h - Partial implementation of the Wiring API for the ATmega8.
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
$Id$
*/
#ifndef Wiring_h
#define Wiring_h
#include <math.h>
#include <avr/io.h>
#include <stdlib.h>
#include "binary.h"
#ifdef __cplusplus
extern "C"{
#endif
#define HIGH 0x1
#define LOW 0x0
#define INPUT 0x0
#define OUTPUT 0x1
#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 SERIAL 0x0
#define DISPLAY 0x1
#define LSBFIRST 0
#define MSBFIRST 1
#define CHANGE 1
#define FALLING 2
#define RISING 3
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define INTERNAL1V1 2
#define INTERNAL2V56 3
#else
#define INTERNAL 3
#endif
#define DEFAULT 1
#define EXTERNAL 0
// undefine stdlib's abs if encountered
#ifdef abs
#undef abs
#endif
#define min(a,b) ((a)<(b)?(a):(b))
#define max(a,b) ((a)>(b)?(a):(b))
#define abs(x) ((x)>0?(x):-(x))
#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
#define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
#define radians(deg) ((deg)*DEG_TO_RAD)
#define degrees(rad) ((rad)*RAD_TO_DEG)
#define sq(x) ((x)*(x))
#define interrupts() sei()
#define noInterrupts() cli()
#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
#define clockCyclesToMicroseconds(a) ( ((a) * 1000L) / (F_CPU / 1000L) )
#define microsecondsToClockCycles(a) ( ((a) * (F_CPU / 1000L)) / 1000L )
#define lowByte(w) ((uint8_t) ((w) & 0xff))
#define highByte(w) ((uint8_t) ((w) >> 8))
#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
#define bitSet(value, bit) ((value) |= (1UL << (bit)))
#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
typedef unsigned int word;
#define bit(b) (1UL << (b))
typedef uint8_t boolean;
typedef uint8_t byte;
void init(void);
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);
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);
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);
void attachInterrupt(uint8_t, void (*)(void), int mode);
void detachInterrupt(uint8_t);
void setup(void);
void loop(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif

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/*
wiring_analog.c - analog input and output
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
Modified 28 September 2010 by Mark Sproul
$Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
*/
#include "wiring_private.h"
#include "pins_arduino.h"
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(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
if (pin >= 54) pin -= 54; // 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(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) && defined(COM4A1)
case TIMER4A:
// connect pwm to pin on timer 4, channel A
sbi(TCCR4A, COM4A1);
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(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);
}
}
}
}

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/*
wiring_digital.c - digital input and output functions
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
Modified 28 September 2010 by Mark Sproul
$Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
*/
#include "wiring_private.h"
#include "pins_arduino.h"
void pinMode(uint8_t pin, uint8_t mode)
{
uint8_t bit = digitalPinToBitMask(pin);
uint8_t port = digitalPinToPort(pin);
volatile uint8_t *reg;
if (port == NOT_A_PIN) return;
// JWS: can I let the optimizer do this?
reg = portModeRegister(port);
if (mode == INPUT) {
uint8_t oldSREG = SREG;
cli();
*reg &= ~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(TCCR2) && defined(COM21)
case TIMER2: cbi(TCCR2, COM21); break;
#endif
#if defined(TCCR0A) && defined(COM0A1)
case TIMER0A: cbi(TCCR0A, COM0A1); break;
#endif
#if defined(TIMER0B) && 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(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);
if (val == LOW) {
uint8_t oldSREG = SREG;
cli();
*out &= ~bit;
SREG = oldSREG;
} else {
uint8_t oldSREG = SREG;
cli();
*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;
}

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/*
wiring_private.h - Internal header file.
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
$Id: wiring.h 239 2007-01-12 17:58:39Z mellis $
*/
#ifndef WiringPrivate_h
#define WiringPrivate_h
#include <math.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <stdio.h>
#include <stdarg.h>
#include "wiring.h"
#ifdef __cplusplus
extern "C"{
#endif
#ifndef cbi
#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
#endif
#ifndef sbi
#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
#endif
#define EXTERNAL_INT_0 0
#define EXTERNAL_INT_1 1
#define EXTERNAL_INT_2 2
#define EXTERNAL_INT_3 3
#define EXTERNAL_INT_4 4
#define EXTERNAL_INT_5 5
#define EXTERNAL_INT_6 6
#define EXTERNAL_INT_7 7
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define EXTERNAL_NUM_INTERRUPTS 8
#else
#define EXTERNAL_NUM_INTERRUPTS 2
#endif
typedef void (*voidFuncPtr)(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif

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/*
wiring_pulse.c - pulseIn() function
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
$Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
*/
#include "wiring_private.h"
#include "pins_arduino.h"
/* Measures the length (in microseconds) of a pulse on the pin; state is HIGH
* or LOW, the type of pulse to measure. Works on pulses from 2-3 microseconds
* to 3 minutes in length, but must be called at least a few dozen microseconds
* before the start of the pulse. */
unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout)
{
// cache the port and bit of the pin in order to speed up the
// pulse width measuring loop and achieve finer resolution. calling
// digitalRead() instead yields much coarser resolution.
uint8_t bit = digitalPinToBitMask(pin);
uint8_t port = digitalPinToPort(pin);
uint8_t stateMask = (state ? bit : 0);
unsigned long width = 0; // keep initialization out of time critical area
// convert the timeout from microseconds to a number of times through
// the initial loop; it takes 16 clock cycles per iteration.
unsigned long numloops = 0;
unsigned long maxloops = microsecondsToClockCycles(timeout) / 16;
// wait for any previous pulse to end
while ((*portInputRegister(port) & bit) == stateMask)
if (numloops++ == maxloops)
return 0;
// wait for the pulse to start
while ((*portInputRegister(port) & bit) != stateMask)
if (numloops++ == maxloops)
return 0;
// wait for the pulse to stop
while ((*portInputRegister(port) & bit) == stateMask) {
if (numloops++ == maxloops)
return 0;
width++;
}
// convert the reading to microseconds. The loop has been determined
// to be 20 clock cycles long and have about 16 clocks between the edge
// and the start of the loop. There will be some error introduced by
// the interrupt handlers.
return clockCyclesToMicroseconds(width * 21 + 16);
}

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/*
wiring_shift.c - shiftOut() function
Part of Arduino - http://www.arduino.cc/
Copyright (c) 2005-2006 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
$Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
*/
#include "wiring_private.h"
uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder) {
uint8_t value = 0;
uint8_t i;
for (i = 0; i < 8; ++i) {
digitalWrite(clockPin, HIGH);
if (bitOrder == LSBFIRST)
value |= digitalRead(dataPin) << i;
else
value |= digitalRead(dataPin) << (7 - i);
digitalWrite(clockPin, LOW);
}
return value;
}
void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val)
{
uint8_t i;
for (i = 0; i < 8; i++) {
if (bitOrder == LSBFIRST)
digitalWrite(dataPin, !!(val & (1 << i)));
else
digitalWrite(dataPin, !!(val & (1 << (7 - i))));
digitalWrite(clockPin, HIGH);
digitalWrite(clockPin, LOW);
}
}