Date   
Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Dave Everett
 

On 3/01/2020 6:41 am, Rizal Acob wrote:
I have uploaded so far 4 PDF files to a folder called 1980 VICA 1802...
There is a scan of the PCB which I have uploaded first, hoping to ask community's opinion if there is a chance to have it reproduced or if there is even any interest on it. I have decided to hold off on the assembly in the hope that the main PCB can be duplicated for preservation. The rest are hard wiring of parts, panels, etc...

I will try to complete the upload of the other files....soon..

Thanks Rizal, this very much appreciated.

Dave

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

David Madole
 

This is a very simple board, it would be easy to re-draw it by hand. Way less complex than the Super Elf!

 

It’s interesting how it’s divided into four sections that could be cut apart and then re-connected with wires or connectors.

 

David

 

 

From: cosmacelf@groups.io <cosmacelf@groups.io> On Behalf Of Rizal Acob
Sent: Thursday, January 2, 2020 2:42 PM
To: cosmacelf@groups.io
Subject: Re: [cosmacelf] VICA 1980 Contest...assembling a Cosmac Elf 1802 system

 

I have uploaded so far 4 PDF files to a folder called 1980 VICA 1802...
There is a scan of the PCB which I have uploaded first, hoping to ask community's opinion if there is a chance to have it reproduced or if there is even any interest on it. I have decided to hold off on the assembly in the hope that the main PCB can be duplicated for preservation. The rest are hard wiring of parts, panels, etc...

I will try to complete the upload of the other files....soon..

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

wrcooke@...
 

Some PCB programs will allow you to place an image underneath, which makes it fairly easy to "trace" the tracks exactly as the originals.  gEDA under Linux allows this.  I will try to take a look at the scans and see how hard it would be to reproduce the board.

Will

On January 2, 2020 at 1:41 PM Rizal Acob <racob@...> wrote:

I have uploaded so far 4 PDF files to a folder called 1980 VICA 1802...
There is a scan of the PCB which I have uploaded first, hoping to ask community's opinion if there is a chance to have it reproduced or if there is even any interest on it. I have decided to hold off on the assembly in the hope that the main PCB can be duplicated for preservation. The rest are hard wiring of parts, panels, etc...

I will try to complete the upload of the other files....soon..

 

"A designer knows he has achieved perfection not when there is nothing left to add, but when there is nothing left to take away." --  Antoine de Saint-Exupery

"The names of global variables should start with    // "  -- https://isocpp.org


Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Tor-Eirik Lunde
 

Looking forward to the rest of this, the projects look like fun and with everything online it'd be fun to check out!

Especially the schematic diagram / list of parts is of interest initially, that way we can have a look at if all the parts still exists somewhere. Hopefully already in a members basement stash :-)

tor. 2. jan. 2020, 20:41 skrev Rizal Acob <racob@...>:

I have uploaded so far 4 PDF files to a folder called 1980 VICA 1802...
There is a scan of the PCB which I have uploaded first, hoping to ask community's opinion if there is a chance to have it reproduced or if there is even any interest on it. I have decided to hold off on the assembly in the hope that the main PCB can be duplicated for preservation. The rest are hard wiring of parts, panels, etc...

I will try to complete the upload of the other files....soon..

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

jeff.birt
 

I have watched a couple of videos where a guy in Hungary used a program called ‘SPRINT Layout’ to reproduce old PCBs. It has the ability to import images and recognize PCB features to help semi-automate the process. I have not used it myself.

 

Jeff Birt

 

From: cosmacelf@groups.io <cosmacelf@groups.io> On Behalf Of Rizal Acob
Sent: Thursday, January 2, 2020 1:42 PM
To: cosmacelf@groups.io
Subject: Re: [cosmacelf] VICA 1980 Contest...assembling a Cosmac Elf 1802 system

 

I have uploaded so far 4 PDF files to a folder called 1980 VICA 1802...
There is a scan of the PCB which I have uploaded first, hoping to ask community's opinion if there is a chance to have it reproduced or if there is even any interest on it. I have decided to hold off on the assembly in the hope that the main PCB can be duplicated for preservation. The rest are hard wiring of parts, panels, etc...

I will try to complete the upload of the other files....soon..

_._,_._,_


Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Rizal Acob
 

I have uploaded so far 4 PDF files to a folder called 1980 VICA 1802...
There is a scan of the PCB which I have uploaded first, hoping to ask community's opinion if there is a chance to have it reproduced or if there is even any interest on it. I have decided to hold off on the assembly in the hope that the main PCB can be duplicated for preservation. The rest are hard wiring of parts, panels, etc...

I will try to complete the upload of the other files....soon..

To Ring in the New Year

Lee Hart
 

Charles Dickens was a gifted writer and masterful storyteller. Everyone knows his holiday classic "A Christmas Carol". But he wrote another masterpiece for the New Year's holiday that is all but forgotten.

"The Chimes" was written in 1844, and tells the tale of Toby Veck, a simple honest man adrift in a cold, cruel world. The message is timeless, and amazingly relevant to our situation today. The original is rather long, and the span of years has made the language difficult. My gift to you for this New Year's Day is my abridged version of "The Chimes", shortened and with some of the words updated for modern readers.

Please enjoy it with my compliments. If you do, I promise you'll never hear the chimes of a clock the same again!

<http://www.sunrise-ev.com/poems/thechimes.htm>

--
Ring the bells that still can ring
Forget your perfect offering
There is a crack in everything
That's how the light gets in.
-- Leonard Cohen, from "Anthem"
--
Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com

Re: My "David Madole's Quest SuperElf Recreation" project and Album

gregory simmons
 

Very nice.

On Thursday, January 2, 2020, 12:37:51 PM EST, Rizal Acob <racob@...> wrote:


Cleaning up my HDD, I found these pics of my project ..a finished "David Madole's SuperElf Recreation" system.
I have created an Album here for everyone who cares to see what I have done. Thanks to David Madole for sharing me the essential parts.

My "David Madole's Quest SuperElf Recreation" project and Album

Rizal Acob
 

Cleaning up my HDD, I found these pics of my project ..a finished "David Madole's SuperElf Recreation" system.
I have created an Album here for everyone who cares to see what I have done. Thanks to David Madole for sharing me the essential parts.

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Rizal Acob
 
Edited

So I got permission from SkillsUSA to share the PDF’d documents to anyone  ( as per their reply to my email) and also requested that I send them also a copy for historical purposes.

I will add some addendum to my PDF to include the scanned PCB. Do you guys want me to include all technical specs of parts used as reference materials....this will make the PDF so big...see the binder in the picture.

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Steve Gemeny
 

Rizal,
I’d suggest talking to the folks at SkillsUSA.  Explain to them that you have this project of old and would like their release to share it “for hobbyist use”.  Point out that many organizations from the late 70s & 80s have done this with old documents and software for historical reasons,  names include Quest Electronics, DEC HP and RCA among many others.  

I recommend d the Creative Commons, non-commercial license with attribution. This provides recognition to the granting entity.  (Read up on this a bit before you call them to get contact info on a person to whom you can send a more formal email inquiry.)

Steve

Sent by my fat thumbs drifting aimlessly  across tiny soft I Keys...

On Jan 2, 2020, at 9:49 AM, Rizal Acob <racob@...> wrote:

Thanks Steve. Do you think it is OK to release to the community the PDF’d copy as it is.
If only there is a contact at SkillsUSA....will google again..

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

David Madole
 

There is generic contact info here as well as a link to individual contact information for the national staff:

 

https://www.skillsusa.org/about/contact/

 

 

From: cosmacelf@groups.io <cosmacelf@groups.io> On Behalf Of Rizal Acob
Sent: Thursday, January 2, 2020 9:49 AM
To: cosmacelf@groups.io
Subject: Re: [cosmacelf] VICA 1980 Contest...assembling a Cosmac Elf 1802 system

 

Thanks Steve. Do you think it is OK to release to the community the PDF’d copy as it is.
If only there is a contact at SkillsUSA....will google again..

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Rizal Acob
 

Thanks Steve. Do you think it is OK to release to the community the PDF’d copy as it is.
If only there is a contact at SkillsUSA....will google again..

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Steve Gemeny
 

Rizal,

I believe it is improper to mark a document with a “supposed” copyright.

The requirement for marking a document is with the original author prior to distribution and is intended to protect it use by others without permission.  Since the original author did not mark the document it is clear that either; he had no intention of publishing it (it was assumed to be for internal use and did not need protection), or he intended it to be unprotected against use by others  I (placing it in the public domain).

Applying a source notice, or crediting the source seems appropriate, but it should be made clearly an addition to the original.  I feel it is incorrect to mark it as having been copyrighted (which would require a date of being published that seems to be unknown).

Steve Gemeny


Sent by my fat thumbs drifting aimlessly  across tiny soft I Keys...

On Dec 31, 2019, at 7:29 PM, Rizal Acob <racob@...> wrote:

The PC board is flimsy but surely I will take a picture of the front and back of it. It is a basic Cosmac Elf but instead of the LED displays and switches, it incorporated a hex keypad instead. I have already PDF’d the documents and schematics. I tried to find any VICA contact but to No Avail so I presume there should be No problem sharing it( I hope). I will try to place a copyright page for VICA on the PDF... any comments from the community? Before I do.

Rizal Acob

Re: VICA 1980 Contest...assembling a Cosmac Elf 1802 system

Stuart Remphrey
 

Very near, congratulations on acquiring it.

A photo or scan with ruler along the edges, or even better sitting against an T-square if available &/or on graph paper would be very useful for x-y axes (although, everything on 0.1-in pitch helps anyway).

Re: Happy New Year!

cellarcat
 

A belated Happy New Year to everyone! I don't know about you but I am really looking forward to multiple new projects this year. I am coming back to the 1802 after decades of playing with the Z80 and CP/M. What I realized last year after getting ZS-DOS and ZCPR running on several different computers was that there really is not much more to do with CP\M. Writing applications software for CP/M is a dead end. There are already multiple versions of everything you could conceivably want. Systems software was the only really interesting thing left and the Z-System basically topped that. John Monahan has done some amazing things with the S100 bus and I have most of his boards but even he is basically setting off into 16, 32 and 64 bit CPU's which really do not interest me. I love the 8 bit computers and their 2 sided PCB's with circuits that you can actually understand and modify. And of the lot the 1802 remains wide open for development. There are myriad things to do that have never been done before, both hardware and software, and a ready audience in the members of this group to cheer one on. Ya gotta love it!

Re: Happy New Year!

 

A Happy and VIP New Year to all!

Tom

http://www.tomswan.com

Re: Membership Card as 1802 Breakout board #MembershipCard #Pixie #Arduino

bill rowe
 

That looks like fun, and a good learning experience. Those little displays always remind me of the pixie graphics.

I vaguely remember somebody on this list doing something like this and working out the timing for grabbing the DMA bites from the 1802. Maybe they’ll pipe up.

Also, when I used a display like that it was oriented wrong for 1861 emulation  and I had to do a lot of bit twiddling to line the pixels up the right way.


On Jan 1, 2020, at 11:43 AM, "fourstix@..." <fourstix@...> wrote:

Happy New Year!

I plan to take a bit of a different path with my membership card.  A few months ago, I wrote an 1802 Netronics Elf II simulator using an Arduino and several components with the Qwiic interface (3.3v I2C) for the displays and keypad. 

The simulator can run all of Tom Pittman's programs from his Short Course in Programming plus the graphics programs from Paul Moews, Programs for Cosmac Elf Graphics to validate the code.  They all ran fine with the simulated Pixie video.

You can view more information along with pictures, documentation and code on Github at this project: fourstix/QwiicCosmacElfSim
URL:  https://github.com/fourstix/QwiicCosmacElfSim

Most of the same components work just fine with a 5v I2C interface, and Arduino Pro-Mini's are very, very cheap, about 5 for $12 to $15 including shipping.  The plan is to duplicate the Netronics Elf II using Arduinos, commonly available I2C components and a Membership card, and emulate the Pixie Video using the DMA Output from the 1802, an Arduino Pro-Mini, and the U8G2 graphics library writing to an I2C 128x64 OLED display.  The challenge would be to make it all fit given the constraints of the Arduino.

I will essentially use the membership card as a breakout board for the 1802 in developing the Arduino code.  I hope re-use and rewrite the code from the QwiicCosmacElfSim project to work with a real 1802.

I realize this approach is ambitious and goes a little bit against the grain, but as parts become more scarce or expensive, but I hope someone might harvest some of the code to replace something they need as part of their own project but can't obtain.  I plan to write and document the code with that goal in mind and post the results on in Github project.  Please feel free to view the code, open issues, make suggestions, etc.  I also appreciate any comments or advice.

I spent some time reviewing the documentation for Membership card and this looks feasible.  I'm sure I'll learn more as I go along.  The only major change I see is that I need to cut the trace from the DMA-OUT pin and solder in a pull-up resistor and create a breakout point for the incoming DMA OUT request.

Other than that, almost all the other control signals and data lines seem to be are available at various points in the membership card.  Which is pretty amazing considering how compact the design layout of the membership card is.

Best wishes for a happy 2020!
Gaston aka fourstix

--
Bill Rowe
Olduino - an arduino for the first of us
https://olduino.wordpress.com/about-2/about/

Membership Card as 1802 Breakout board #MembershipCard #Pixie #Arduino

Gaston Williams
 

Happy New Year!

I plan to take a bit of a different path with my membership card.  A few months ago, I wrote an 1802 Netronics Elf II simulator using an Arduino and several components with the Qwiic interface (3.3v I2C) for the displays and keypad. 

The simulator can run all of Tom Pittman's programs from his Short Course in Programming plus the graphics programs from Paul Moews, Programs for Cosmac Elf Graphics to validate the code.  They all ran fine with the simulated Pixie video.

You can view more information along with pictures, documentation and code on Github at this project: fourstix/QwiicCosmacElfSim
URL:  https://github.com/fourstix/QwiicCosmacElfSim

Most of the same components work just fine with a 5v I2C interface, and Arduino Pro-Mini's are very, very cheap, about 5 for $12 to $15 including shipping.  The plan is to duplicate the Netronics Elf II using Arduinos, commonly available I2C components and a Membership card, and emulate the Pixie Video using the DMA Output from the 1802, an Arduino Pro-Mini, and the U8G2 graphics library writing to an I2C 128x64 OLED display.  The challenge would be to make it all fit given the constraints of the Arduino.

I will essentially use the membership card as a breakout board for the 1802 in developing the Arduino code.  I hope re-use and rewrite the code from the QwiicCosmacElfSim project to work with a real 1802.

I realize this approach is ambitious and goes a little bit against the grain, but as parts become more scarce or expensive, but I hope someone might harvest some of the code to replace something they need as part of their own project but can't obtain.  I plan to write and document the code with that goal in mind and post the results on in Github project.  Please feel free to view the code, open issues, make suggestions, etc.  I also appreciate any comments or advice.

I spent some time reviewing the documentation for Membership card and this looks feasible.  I'm sure I'll learn more as I go along.  The only major change I see is that I need to cut the trace from the DMA-OUT pin and solder in a pull-up resistor and create a breakout point for the incoming DMA OUT request.

Other than that, almost all the other control signals and data lines seem to be are available at various points in the membership card.  Which is pretty amazing considering how compact the design layout of the membership card is.

Best wishes for a happy 2020!
Gaston aka fourstix

Re: Happy New Year!

joshbensadon
 

Happy New Year !

I agree with Chuck, definitely out with the new!

Josh


From: cosmacelf@groups.io <cosmacelf@groups.io> on behalf of the-eagle@... <The-Eagle@...>
Sent: Tuesday, December 31, 2019 6:32 PM
To: cosmacelf@groups.io <cosmacelf@groups.io>
Subject: Re: [cosmacelf] Happy New Year!
 
Happy New Year to All, out with the new and in with the old :-)

Chuck Yakym