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Summary of Contents for Briel Computers replica I
- Page 1 I Setup and Users Manual Setup and Users Manual Setup and Users Manual Setup and Users Manual MARCH 2009 TE EDITION Briel Computers Briel Computers Briel Computers Briel Computers 5392 Cornell Blvd North Ridgeville, OH 44039...
- Page 2 North Ridgeville, OH 44039 Copyright 2009 Briel Computers. All rights reserved. Printed in the United States of America. Except as permitted under the Copyright Act of 1976, no part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher, with the exception that the program listings may be entered, stored, and executed in a computer system, but they may not be reproduced for publication.
- Page 3 RAM write cycle was only during PHI2 of the 6502’s clock. For this I used a 74LS00 NAND gate IC. I needed to invert the R/W signal and AND in PHI2. This required 2 of the 4 NAND gates in the IC. © Briel Computers 2007 page...
- Page 4 A1 replica. I also just put my initials on the board with the year 2003. Shortly after my first prototypes were built, I created Briel Computers. At this stage my old high school friend Chris contacted Woz through his webmaster asking for permission to use the Apple 1 code.
- Page 5 Programming the replica 1 Chapter 6: Using The Serial Interface Chapter 7: Using the Krusader Assembler Chapter 8: Troubleshooting your replica 1 Appendix A: ASCII Keyboard Pin Out Appendix B: Replica 1 Memory Map Appendix C: Monitor Listing © Briel Computers 2007 page...
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Page 6: Chapter 1: A Brief History Of The Apple
They assembled boards at night in Job’s parents’ garage and sold some to the Homebrew Club. It wasn’t until a local computer store purchased $50,000 worth of boards that anything significant had happened. After that, things changed. © Briel Computers 2007 page... - Page 7 Some auctions have fetched upwards of $50,000 for an Apple 1 but the average selling price is around $16,000-$25,000. Figure 2: Steve Jobs and Steve Wozniak shown with an Apple 1 computer in 1976 © Briel Computers 2007 page...
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Page 8: Chapter 2: Introducing The Replica I Te Computer
Propeller from Parallax website. Programmers are welcome and encouraged to use the Briel Computers forum to announce custom developed features and improvements to the firmware. The owner takes all responsibility for any firmware installed that is not released or approved by Briel Computers. - Page 9 The replica 1 TE is currently the most advanced replica Apple 1 produced. It encompasses features as requested by current or future owners of replica 1, as well as design improvements, bug fixes and other enhancements. All revisions remain backward compatible with the original replica 1. © Briel Computers 2007 page...
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Page 10: Chapter 3: Unpacking And Setting Up System
Before you begin setting up your replica 1 computer, make sure you have plenty of table space. Do not power up the unit while touching any part of the circuit board and contact Briel computers if you are unsure about any part of the setup process. - Page 11 If you are using an Apple 2 or 2+ ASCII keyboard, locate the ASCII keyboard port near the replica 1 logo on the board and plug your 16pin dip cable into the board. Note that pin 1 is next to the ‘A’ on the ASCII KEYBOARD label. © Briel Computers 2007 page...
- Page 12 1 TE. If you are using the PS/2 style keyboard you will notice that the caps lock is already on by default for you. The apple 1 only understands uppercase characters so does the replica 1. © Briel Computers 2007 page...
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Page 13: Chapter 4: Assembling The Replica 1 Te Kit
1. Kit contents: All kits have been carefully assembled to insure that no parts are missing; however, you should check the inventory to make sure you have everything. If you find anything missing, please contact Briel Computers. IC’s: MODEL... - Page 14 R1-R8 1K ohms R9-R18 100 ohms R19, R20 220 ohms R21, R22 560 ohms 10K ohms R24, R25 Capacitors: Size .1uF C1-C11 .01uF C12, C13 10uF C14-C20 100uF C21, C22 DISPLAYS: Type Jumbo Red LED © Briel Computers 2007 page...
- Page 15 Make sure you have proper working space and that you heat your iron before beginning the assembly. This kit is not for beginners and Briel Computers assumes that you have some prior experience with soldering circuit boards. If you have never soldered circuit boards before or don’t feel you are ready, you should build other kits of a smaller, less complex nature before building your replica 1.
- Page 16 Step 1: Start with the resistors. Bend the leads on each side of the resistor 90 degrees near the edge of the resistor. Insert the resistor into its proper location until it rests flush with the board. They are not polarized so © Briel Computers 2007 page...
- Page 17 Step 14: Install the C14-C20 10uF capacitors. The arrow on the capacitors points towards the NEGATIVE. On the PCB the positive is identified, so the negative is the other pin hole. Mount flush onto the board, bend the leads away from one another and solder. Cut away excess lead length. © Briel Computers 2007 page...
- Page 18 Any parts that get accidentally damaged during the building process can be replaced at the owner’s expense. Contact Briel Computers for any replacement parts needed. The goal of Briel Computers is that ALL replica 1 kits get completed successfully. If you are having a problem, please feel free to ask for help.
- Page 19 Replica 1 TE Users Manual Use this page to document any notes needed for assembly © Briel Computers 2007 page...
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Page 20: Chapter 5: Programming The Replica
To program a location in memory, simply type in the address followed by the value to write to it. For example, to program location 300 with the value FF, simply type: 300:FF [RETURN] The Woz monitor will respond by displaying the old value of the memory location: 0300:E1 © Briel Computers 2007 page... - Page 21 The program should then print out a continuous stream of characters. Every once in a while the screen will clear; this is a normal function of the replica 1 having the ability to clear the screen through software. © Briel Computers 2007 page...
- Page 22 Woz monitor. This leaves just under 4K available. Now, thanks to Ken Wessen, that space is now occupied with a powerful assembler called Krusader. To start Krusader, type in ‘F000R’ [return]. To program the assembler, refer to the Krusader manual for sample programs and commands. © Briel Computers 2007 page...
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Page 23: Chapter 6: Using The Serial Port
Figure 11: Setting up a new connection Click on OK; next, select which COM port you are connected to and select OK. Next, set up your COM port as shown: 2400, N,8,1 Figure 12: Proper serial port settings © Briel Computers 2007 page... - Page 24 Power up your replica and press the reset button. Try typing on both the replica keyboard and your pc keyboard to verify that both function. Make sure that Caps Lock is ON with the PC. If you have any problems repeat these steps. © Briel Computers 2007 page...
- Page 25 Figure 19: Stop text capture Once you are done capturing your file, click on the “Transfer” tab, Capture Text option and “Stop.” That is it. You can now go in and edit your file with any text editor. © Briel Computers 2007 page...
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Page 26: Chapter 7: Using The Krusader Assembler
Once the program finishes with the RTS command it will return to the Krusader assembler shell. To learn more on how to program using Krusader, refer to the Krusader owner’s manual or visit the Krusader web site at: http://school.anhb.uwa.edu.au/personalpages/kwessen/apple1/Krusader.htm © Briel Computers 2007 page... -
Page 27: Chapter 8: Troubleshooting Your Replica
These are a few of the most common problems reported by kit builders. The number one source was missed pins. If the pins don’t get soldered, the circuit may work, but act very strange. If you absolutely can’t find out what is wrong, contact Briel Computers to have your board checked. The replica 1 forums at: http://www.brielcomputers.com/phpBB2/... -
Page 28: Appendix A: Ascii Keyboard Pin Out
Users Manual Appendix A: ASCII Keyboard pin out Figure 20: replica I keyboard port from the 16 pin DIP connector. Pin 1 is 5V. Figure 21: Apple 1 keyboard port from the 16 pin DIP connector; Pin 1 is reset. -
Page 29: Appendix B: Replica 1 Memory Map
Replica 1 TE Users Manual Appendix B: Replica 1 Memory Map © Briel Computers 2007 page... -
Page 30: Appendix C: Woz Monitor Listing
CMP #$D2 “R”? FF57: F0 3B BEQ RUN Yes. Run user program. FF59: 86 28 STX L $00-> L. FF5B: 86 29 STX H and H. FF5D: 84 2A STY YSAV Save Y for comparison. © Briel Computers 2007 page... - Page 31 “:”. FFB7: 20 EF FF JSR ECHO Output it. FFBA: A9 A0 PRDATA LDA #$A0 Blank. FFBC: 20 EF FF JSR ECHO Output it. FFBF: A1 24 LDA (XAML,X) Get data byte at ‘examine index’. © Briel Computers 2007 page...
- Page 32 FFF8: 00 00 (unused) FFFA: 00 0F (NMI) FFFC: 00 FF (RESET) FFFE: 00 00 (IRQ) HARDWARE NOTES Page 0 Variables Other Variables XAML 200-27F XAMH D010 KBD CR D011 D012 DSP CR D013 YSAV MODE © Briel Computers 2007 page...
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Page 33: Warranty
Briel Computers, shall have resulted either directly or indirectly from accident, abuse, or misapplication of the product, shall be assumed by the customer, and the Briel Computers shall assume no liability as a consequence of such events under the terms of this warranty.
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