Posts by AndyG

Awesome … many thanks again

Can you post a link to the files when you have had a chance to upload them?

Well done … amazing you were able to do this in such a short time …. When you post the Gerber files will get a few bare boards and make one up

Andy

5volts it is…… and connected to pin 24 of UD3 as in the photo above

I hate auto correct - was turned back on after an update.... sorry. I tested the trace under UD3 as requested and they are connected.

Also Pin11 of IC4 is connected to this track. My test point for that was the point circled on the left in front of UD3 label to pin 11 of UC4.

Just checked

• IC7 Pin 2,3,8 IC10 Pin5 are connected - YES

• Blue clip wire (near IC10) and IC9 Pin 10 and IC6 Pin2 are connected - YES
• IC 3 Pin3 and CHARROM-Adapter Pin 15 are connected - YES. The adapter but not charm IC itself
• Red clip wire (near IC4) and IC4 Pin 11 and the small trace under UD3 are connected - YES. The trace by UD3 where I tested was infant of the IC by the UDS label

I found these two photos in my Flickr album which may be useful. Will take more this weekend.. the IC sockets for the character rom and ram chips are solid so you cannot see tracks that run underneath them. I would imagine though for the big chips the tracks are similar to the HR40b?

Ok

Great work ….. Look forward to building up one of these boards from new.

Supersoft were very active back in the day. I made a full scan of their Winter 1982 catalogue where these other boards are also talked about but no pictures. I have never seen the HR80 plus.

supersoft.pdf

Here are some photos of the 9inch version

Sure

No worries …. It’s in my 2001-32k white screen PET… will pull and take detailed photos

It is. Don’t know if it was Supersoft (commercial) or someone else (DIY), took that board and changed how it connected to make it work on a Universal motherboard….

The Supersofts HR-40B design utilises the CRTC chip unlike this one. The picture below was captured from an eBay auction (didn’t bid for it) and you can follow the connections Including the addition of diodes for the blue wire (middle) and red wire (bottom right). Yellow is untouched.

Didn’t think you needed a Flickr account to view my files

https://www.flickr.com/photos/138413235@N02/albums

Quote from detlef

Quote from AndyG

Quote from zitruskeks

Prinzipiell gabs die Karte für fast alle Pets. Als HR40 für 9Zöller, als HR40B für 12Zoll 40Zeichen Geräte und als HR80 für die 80Zeichen Serien. Für letztere auch mit 640*200 Zumindest die 40b und die 80 sind bis auf einen 74er Chip und um den herum ein paar Layoutänderungen auf den ersten Blick identisch. Die 40er scheint vor allem einen anderen Formfaktor zu haben und ist fiddeliger eingebunden, mit einem Haufen Huckepackadaptern.

Für die 40b hab ich Bilder eines unbestückten Boards, von der 80er die Rückseite und bestückte Boards, von der 40 nur ein paar Bilder. Also erst mal die 40b.

I have the 9 inch hr-40 board which can be found on my Flickr account.

Can you post a picture of this board? I don't have a Flickr account.

Quote from zitruskeks

Prinzipiell gabs die Karte für fast alle Pets. Als HR40 für 9Zöller, als HR40B für 12Zoll 40Zeichen Geräte und als HR80 für die 80Zeichen Serien. Für letztere auch mit 640*200 Zumindest die 40b und die 80 sind bis auf einen 74er Chip und um den herum ein paar Layoutänderungen auf den ersten Blick identisch. Die 40er scheint vor allem einen anderen Formfaktor zu haben und ist fiddeliger eingebunden, mit einem Haufen Huckepackadaptern.

Für die 40b hab ich Bilder eines unbestückten Boards, von der 80er die Rückseite und bestückte Boards, von der 40 nur ein paar Bilder. Also erst mal die 40b.

I have the 9 inch hr-40 board which can be found on my Flickr account.

I only have one board (unlike the hr-40b) so am reluctant to remove IC’s …. though … I can photograph it in more detail as needed ….

I also have 2 MTU boards .. one for 9inch and another for 12 inch (rev 11) which I photographed also (sorry I am a hi res graphics PET buff)

Andy

Quote from zitruskeks

AndyG are the connections correct? That's where I needed to take an educated guess as it’s either hidden or hard to recognize.

Hi, the connections are correct. Andy

I had these two photos which may help. Will get the board out and check your assumptions

Quote from zitruskeks

AndyG are the connections correct? That's where I needed to take an educated guess as its either hidden or hard to recognize.

Let me check …

I worked with Steve Gray and Mike N to get my board working. It has a programmable character set which is interesting….mike has a number of documents uploaded to the page below

The code is stored above $E800 in the edit rom… the character rom is different also as FF is blank (no pixels) - effectively inverted. So when I created the HAL PCG character roms into a switchable rom board so the games could be played, I have to invert every byte (OR $FF)

Mike Naberezny – Supersoft Graphics Board

Great to meet you via this forum … 😃😃 awesome work from you all….

I found it via Mike’s GitHub listings when trying to fix my HSG board. Without that I was messing around in the dark.

I did not recognise anyone on the acknowledgment list, so went searching and found this forum and joined.

I did a little more playing on my side with different 12 inch PET CRT’s and found my SuperPET CRT have reduced flicker with the 9367 GPU that was bearable.. The 9365 is still worse. The 9366 totally flicker free. So I swapped the monitors over.

Wondered if the 9367 board could be adapted to switch between 512x512 and 512x256 via a switch on pin 8 (fmat) and also the jumper points A & B ….. for times where the flicker is too much. Right now I put a manual jumper in for switching between A and B.

Awesome ….

I did find at 512 x 512 resolution, the flicker was reduced compared to a native EF9365 (the output on the lcd screen had an imperceptible beat/flicker) but the PET crt flicker was still too much for my eyes… so converted to 512 x 256 resolution.

The ef9367 introduces a slight screen wobble in native cbm mode when enabled which to me says it must be a result of slightly different timings.

You guys are Awesome… 😃

Not the best picture but here is the solder side and top side of the Super Soft HR-40 board. Am happy to "buzz" out connections as needed...

Sorry if this is not clear enough ... Andy

Flickr is reduced with this GPU but still a headache at 512x512. I changed the link to B type and grounded fmat and this was much better but still some screen wobble. Replacing with a EF9366 stopped it completely.

More photos at

https://www.flickr.com/photos/138413235@N02/albums

But will find the bare board Supersoft HR-40 for you

Here’s the EF9367 adaptor board for the HSG

I did de-populate a HR-40 board for Steve G to take photos.. will post as got to find them

The GitHub page for Mike N is https://github.com/InsaneDruid/Low-Speed-Graphik … I believe there was a mention of this earlier in the threads

Ich habe den Ef9367 durch einen EF9366 ersetzt....

Mein Deutsch ist schlecht, also mit Google Translate. Ich habe diesen Thread mit großem Interesse verfolgt. Mein HSG-Board war defekt und konnte anhand der Schaltpläne auf der Github-Seite von Mike N repariert werden. Ich bin eher ein Experte mit den Supersoft HR-Boards, mag aber die höhere Auflösung des HSG-Horts auf meinem MultiPET. Frage ... hier wird das Bildschirmflimmern mit dem EF9365-Chip nicht erwähnt ... meiner verursacht Kopfschmerzen, während mit der 9366-GPU alles in Ordnung ist ... hat jemand anderes dieses Flimmern erlebt?