https://youtu.be/ifrAthZ-iFM (https://youtu.be/ifrAthZ-iFM)
GITHUB of the project:
https://github.com/abalore/cpc_gpio (https://github.com/abalore/cpc_gpio)
That made me smile :)
Also, I love the clicky sound of the 6128 keys...
By the way, the project is open so anybody can build it:
https://github.com/abalore/cpc_gpio
Hi @abalore (https://www.cpcwiki.eu/forum/index.php?action=profile;u=2595) nice project!
What value should the three resistors be? I plan to build one or two :)
Thanks, Richard.
Quote from: Richard_Lloyd on 21:38, 12 January 22
Hi @abalore (https://www.cpcwiki.eu/forum/index.php?action=profile;u=2595) nice project!
What value should the three resistors be? I plan to build one or two :)
Thanks, Richard.
I use 10K, but any value between 1K and 10K should do the job.
https://youtu.be/N_RItkWr-Zo
I went one step further connecting the CPC to the Raspberry PI using the newly named SOYUZ board.
The test is done in BASIC, the next one will be in assembler and it's expected to reach transfers speeds of 2 Mbits/second.
That is cool, two CPC to PI alternatives.
First of all, thanks for sharing the project.
Are you connecting 5V signals to the RPi? I do not see any level shifter in your circuit and this can damage GPIO lines on the RPi.
Quote from: issalig on 16:32, 24 January 22
First of all, thanks for sharing the project.
Are you connecting 5V signals to the RPi? I do not see any level shifter in your circuit and this can damage GPIO lines on the RPi.
Hello, the level shifter is in the protoboard, made of basic resistor voltage dividers in the CPC -> RPi direction, and nothing in the RPi -> CPC direction. But I designed a proper "hat" for RPi interconnection, with mosfets and all the stuff. I'll get the PCBs to test this week or the beginning of next, and once the design is validated I'll share it here.
All ok, as I did not see it in the schematic I was wondering how did you manage voltages but now all is clear.
Nice project, I just wrote about it quickly, did I forget something, or want to add any text : https://www.genesis8bit.fr/archives/index.php?news_id=1792 (https://www.genesis8bit.fr/archives/index.php?news_id=1792)
Hmm, I forgot to add the github of Soyouz, correcting this now.
Doh, Soyuz, not Soyouz.
Quote from: genesis8 on 18:53, 25 January 22
Nice project, I just wrote about it quickly, did I forget something, or want to add any text : https://www.genesis8bit.fr/archives/index.php?news_id=1792 (https://www.genesis8bit.fr/archives/index.php?news_id=1792)
Hmm, I forgot to add the github of Soyouz, correcting this now.
Doh, Soyuz, not Soyouz.
Thank you!
Testing the RPi hat for Soyuz.
It manages the voltage levels for 8 inputs and 10 outputs (data+clock). It works with a standard hard disk cable.
It can be connected to either port A or port B of the Soyuz. When connected to port B, it provides a pass-through connector for port A.
(http://abalore.com/soyuz/rpihat.jpg)
Quote from: abalore on 08:59, 27 January 22
It can be connected to either port A or port B of the Soyuz. When connected to port B, it provides a pass-through connector for port A.
Does that mean we can connect 2 x Pi's to the Soyuz?
Quote from: zhulien on 00:18, 28 January 22
Does that mean we can connect 2 x Pi's to the Soyuz?
Yes.
awesome, what is the cost of the Soyuz?
Quote from: zhulien on 12:45, 28 January 22
awesome, what is the cost of the Soyuz?
It's an open project, I don't plan to sell it. Anyway, when I'm happy with the latest prototype and make some software for it I'll consider making a small batch. At this moment I'm testing full screen video stream at 10 fps from the RPi to the CPC. I will post more news about that later.
According to Wikipedia, approximately $80 Million per launch. :)
Bryce.
Quote from: Bryce on 12:58, 28 January 22
According to Wikipedia, approximately $80 Million per launch. :)
Bryce.
Apparently, less than half if you're Russian. Something akin to ordering from UK when in the EU.
If we can 4 boards on 1 cpc and 2 Pis per board... so max 8 Pis per CPC?
Or even better: A quick network of CPCs ;D
can you put me down for 4 boards if you make a batch?
Quote from: zhulien on 23:27, 31 January 22
can you put me down for 4 boards if you make a batch?
Is ok for you to get the boards in DIY "kit" format?
I prefer not a kit form as i likely won't be able to find time to make them.
Wow Looking good..
When you are making any boards, I would be interested in one. Can also be a DIY kit.
Quote from: Apollo on 17:29, 05 April 22When you are making any boards, I would be interested in one. Can also be a DIY kit.
The project is on hold at this moment, but I'll let you know
Is the software for this vs cplink compatible?
Hello, this project has been dropped in its current form, pending from an important refactor.
The software part is just a CPC screen encoder in the Raspberry and a dumb two buffer player in the CPC
If someone wants to take a look at the code I can share it