throw it all under the GPL
git-svn-id: https://svn.salfter.gotdns.org/svn/a2bfc/trunk@93 1b90f75b-8b96-4784-87c0-14078182fce6
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							| @@ -0,0 +1,339 @@ | ||||
|     GNU GENERAL PUBLIC LICENSE | ||||
|        Version 2, June 1991 | ||||
|  | ||||
|  Copyright (C) 1989, 1991 Free Software Foundation, Inc. | ||||
|                           675 Mass Ave, Cambridge, MA 02139, USA | ||||
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|     GNU GENERAL PUBLIC LICENSE | ||||
|    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | ||||
|  | ||||
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| compelled to copy the source along with the object code. | ||||
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|      END OF TERMS AND CONDITIONS | ||||
|  | ||||
| Appendix: How to Apply These Terms to Your New Programs | ||||
|  | ||||
|   If you develop a new program, and you want it to be of the greatest | ||||
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|  | ||||
| Also add information on how to contact you by electronic and paper mail. | ||||
|  | ||||
| If the program is interactive, make it output a short notice like this | ||||
| when it starts in an interactive mode: | ||||
|  | ||||
|     Gnomovision version 69, Copyright (C) 19yy name of author | ||||
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|  | ||||
| The hypothetical commands `show w' and `show c' should show the appropriate | ||||
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|  | ||||
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|  | ||||
|   Yoyodyne, Inc., hereby disclaims all copyright interest in the program | ||||
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|  | ||||
|   <signature of Ty Coon>, 1 April 1989 | ||||
|   Ty Coon, President of Vice | ||||
|  | ||||
| This General Public License does not permit incorporating your program into | ||||
| proprietary programs.  If your program is a subroutine library, you may | ||||
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| This package serves two purposes: it contains routines for working with | ||||
| Dallas Semiconductor's 1-Wire and iButton devices on 6502-based systems (the | ||||
| Apple II, specifically, though it should be easily extended to other | ||||
| platforms), and it contains an example program that uses these routines to | ||||
| implement a smart temperature controller.  I use it with an Apple IIe and a | ||||
| small adapter board that plugs into the joystick port.  It keeps the | ||||
| temperature within 2 degrees of the setpoint, keeps the compressor from | ||||
| short-cycling (it's currently set for a 5-minute minimum delay from off to | ||||
| on), slowly ramps temperatures up/down as needed, and charts the temperature | ||||
| for the last ~4.5 hours.  I use it to control the fermentation temperature | ||||
| for my homebrew. :-) | ||||
|  | ||||
| I originally wrote this in a mix of BASIC and assembly language, using | ||||
| native tools on the Apple II.  Rewriting the entire package with cc65 was an | ||||
| opportunity to get up to speed on cc65, as I've worked out a design for a | ||||
| 6502-based controller that'll take the Apple II's place and I wanted | ||||
| something easier to code than having to write everything in assembly | ||||
| language.  The next step is to adapt cc65 to my custom architecture. | ||||
|  | ||||
| To use just the 1-Wire routines in your own programs, you just need the | ||||
| ow*.[chs] files added to your project.  If you're using something other than | ||||
| an Apple II, you'll need to replace ow-apple2.s with something appropriate | ||||
| for your system (you would also need to cobble together a 1-Wire interface | ||||
| of some sort, whether it's an RS-232-to-1-Wire adapter on a serial port or a | ||||
| bit-banging interface of your own design. | ||||
|  | ||||
| ow-apple2.s is probably the best-documented of the files.  All of the | ||||
| functions within would need to be reimplemented for another system.  Once | ||||
| you have that done, the other functions should work. | ||||
|  | ||||
| main.[ch] serves as an example.  It's not particularly well-documented, but | ||||
| in addition to using the 1-Wire temperature and time routines, it also | ||||
| includes input routines that use the clock to time out after a period of | ||||
| inactivity.  It expects to have a DS18B20 temperature sensor and a DS2417 | ||||
| real-time clock attached to the 1-Wire bus.  On the 16-pin joystick port, | ||||
| AN0 writes to the bus (on pulls the bus low; off lets it float high), PB2 | ||||
| reads the current state of the 1-Wire bus, and AN1 turns a relay on and off. | ||||
|  | ||||
| If you're using a IIGS connected to a file server (either AppleShare, | ||||
| netatalk, or the built-in file sharing on most pre-OSX Macs), the 1-Wire | ||||
| routines will not work properly while the computer is connected.  If you | ||||
| kick down to normal speed (1 MHz) and press Ctrl-Reset, the computer will | ||||
| disconnect from the server and the 1-Wire routines will work properly.  | ||||
| (This caused me no end of problems in the early phases of development until | ||||
| I figured this out.  Masking interrupts in the timing-critical routines made | ||||
| no difference.) | ||||
|  | ||||
| File manifest: | ||||
|  | ||||
| apple2-tgi.cfg | ||||
|   config file for build | ||||
| Makefile | ||||
|   makefile (duh) | ||||
| cfridge.shk | ||||
|   ready-to-run Apple II binaries | ||||
| COPYING | ||||
|   GPLv2 | ||||
| interface.txt | ||||
|   a description of the 1-Wire interface for the Apple II joystick port | ||||
| main.c | ||||
| main.h | ||||
|   main program source & header files | ||||
| ow-apple2.s | ||||
|   Apple II-specific 1-Wire primitives | ||||
| ow-common.s | ||||
|   system-independent 1-Wire primitives | ||||
| ow.c | ||||
| ow.h | ||||
|   higher-level 1-Wire functions (all 1-Wire programs include ow.h) | ||||
| ow-temp.c | ||||
| ow-temp.h | ||||
|   functions for the DS18B20 teperature sensor | ||||
| ow-time.c | ||||
| ow-time.h | ||||
|   functions for the DS2417 real-time clock | ||||
| README | ||||
|   this file (duh, again) | ||||
|  | ||||
							
								
								
									
										
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| Connecting 1-Wire devices to your Apple II is dead simple.  A 74HCT126 quad | ||||
| three-state buffer, a 4.7k resistor, a 0.1uF capacitor, and the appropriate | ||||
| connector to plug into the 16-pin joystick port is all you need.  (The 9-pin | ||||
| joystick port on the IIe and later machines is inadequate for our purposes | ||||
| since it has no outputs.) The circuit looks something like this: | ||||
|  | ||||
|   +5V o--------------+-------|     C1     |-----o GND | ||||
|                      |       |   0.1uF    | | ||||
|   AN0 o-------|      /       +-----|(-----+ | ||||
|               |      \ R1    |            | | ||||
|               |      / 4.7k  v     U1     v | ||||
|             |\|      \      Vdd 74HCT126 Vss | ||||
|             | \      | | ||||
|   GND o-----|  >-----+------+----------------------------------o to 1-Wire bus | ||||
|             | /             | | ||||
|             |/ U1A          | | ||||
|                             | | ||||
|                             |   GND o--+---+---------+---| | ||||
|   +5V o------|              |          |   |         |   | | ||||
|              |/|            |          | |\|         | |\| | ||||
|              / |            |          | | \         | | \ | ||||
|   PB2 o-----<  |------------|          |-|  >        |-|  > | ||||
|              \ |                         | /           | / | ||||
|               \| U1B                     |/ U1C        |/ U1D | ||||
|  | ||||
| We use four signals on the joystick connector: | ||||
|  | ||||
| +5V (pin 1)  5V power supply | ||||
| GND (pin 8)  system ground | ||||
| AN0 (pin 15) annunciator 0 output | ||||
| PB2 (pin 4)  pushbutton 2 input | ||||
|  | ||||
| Something similar to DigiKey part # CDP16G-ND would be a suitable connector | ||||
| to plug into the joystick connector, with a ribbon cable leading away to a | ||||
| breadboard or an external enclosure for the circuit.  If you built the | ||||
| circuit on a PC board for in-computer installation, a 16-pin wire-wrap | ||||
| socket would work (and would allow passthrough connection of a joystick or | ||||
| paddles).  To wire up the circuit on a breadboard, use this list of | ||||
| connections: | ||||
|  | ||||
| - pin 1 of the joystick connector to one end of R1 | ||||
|                                   to one end of C1 | ||||
|                                   to pins 14 and 13 of U1 | ||||
| - pin 8 of the joystick connector to the other end of C1 | ||||
|                                   to pins 2, 4, 5, 7, 9, and 10 of U1 | ||||
| - pin 15 of the joystick connector to pin 1 of U1 | ||||
| - pin 4 of the joystick connector to pin 11 of U1 | ||||
| - pin 12 of U1 to pin 3 of U1 | ||||
|                to the other end of R1 | ||||
|                to the data I/O pins of your 1-Wire devices | ||||
|  | ||||
| The 1-Wire bus is held high by R1.  Devices pull the bus low to send a | ||||
| signal; the length of time they hold the bus low determines the type of | ||||
| signal.  When AN0 is off, the output of U1A is in a high-impedance state so | ||||
| that 1-Wire devices can be read through U1B (wired as a buffer) on PB2.  | ||||
| When AN0 is on, the output of U1A is driven low to send a signal to the bus.  | ||||
| C1 is a bypass capacitor across the power-input pins of U1.  Since U1 is a | ||||
| CMOS device, the unused inputs of U1C and U1D are held low. | ||||
|  | ||||
| Timing diagrams for the different signals used on the 1-Wire bus are in | ||||
| Maxim application note #126 (available at | ||||
| http://www.maxim-ic.com/appnotes.cfm/appnote_number/522/ln/en). | ||||
|  | ||||
| At the time I wrote this, I was still waiting for a parts shipment to arrive | ||||
| from DigiKey.  I substituted a 74F00 and 74F125 from the junkbox, and the | ||||
| circuit worked OK  I suspect other logic types with TTL-compatible I/O would | ||||
| also work.  Use 1/4 of the 74F00 as an inverter between AN0 and pin 1 of the | ||||
| 74F125, since the outputs of the '125 are active when the control input is | ||||
| low (on the '126, the outputs are active when the control input is high). | ||||
|  | ||||
| This circuit doesn't provide parasitic power to 1-Wire devices, so make sure | ||||
| their power and ground pins are connected to suitable supplies.  Parasitic | ||||
| power is described in the datasheets of those devices that support it; | ||||
| modifying this interface to support it is left as an exercise for the | ||||
| reader. | ||||
							
								
								
									
										20
									
								
								main.c
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								main.c
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     Apple II Beer Fridge Controller | ||||
|     Copyright (C) 2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #include <stdio.h> | ||||
| #include <conio.h> | ||||
| #include <errno.h> | ||||
|   | ||||
							
								
								
									
										20
									
								
								main.h
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								main.h
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     Apple II Beer Fridge Controller | ||||
|     Copyright (C) 2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #ifndef _MAIN_H | ||||
| #define _MAIN_H | ||||
|  | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow-apple2.s
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow-apple2.s
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| ; Apple II-specific 1-Wire routines | ||||
|  | ||||
| 	.export _ow_send1_impl | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow-common.s
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow-common.s
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| ; system-independent 1-Wire routines | ||||
|  | ||||
| 	.export _ow_writebit | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow-temp.c
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow-temp.c
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #include "ow-temp.h" | ||||
| #include <errno.h> | ||||
|  | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow-temp.h
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow-temp.h
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #ifndef OW_TEMP_H | ||||
| #define OW_TEMP_H | ||||
|  | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow-time.c
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow-time.c
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #include "ow-time.h" | ||||
| #include <errno.h> | ||||
|  | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow-time.h
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow-time.h
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #ifndef OW_TIME_H | ||||
| #define OW_TIME_H | ||||
|  | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow.c
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow.c
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #include "ow.h" | ||||
|  | ||||
| unsigned char ow_crc_lookup[256]= | ||||
|   | ||||
							
								
								
									
										20
									
								
								ow.h
									
									
									
									
									
								
							
							
						
						
									
										20
									
								
								ow.h
									
									
									
									
									
								
							| @@ -1,3 +1,23 @@ | ||||
| /* | ||||
|  | ||||
|     cc65 1-Wire Library | ||||
|     Copyright (C) 2003-2007 Scott Alfter (scott@alfter.us) | ||||
|  | ||||
|     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, version 2. | ||||
|  | ||||
|     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., 675 Mass Ave, Cambridge, MA 02139, USA. | ||||
|  | ||||
| */ | ||||
|  | ||||
| #ifndef OW_H | ||||
| #define OW_H | ||||
|  | ||||
|   | ||||
		Reference in New Issue
	
	Block a user