Can anyone help getting a better quality schematic of C64 assy 250425 and 250466?

[HovKlan-DH]

I have created tasks #26 and #27, and I am on the lookout for some better quality schematics, as the current ones are quite terrible. Would anyone know where I can get this - does it even exists?

[chris-jh]

Bwack has recreated some c64 boards in Kicad
https://github.com/bwack?tab=repositories

Johan has done c128
https://github.com/jgrip?tab=repositories

I have some others over on Board Folk Github (some are still set to private at the moment)
https://github.com/orgs/Board-Folk/repositories

[HovKlan-DH]

If you could help converting this in to PNG images, this would be great, as I seem unable to know how to operate KiCAD :-)

[chris-jh]

Looking at Both Bwack and Johan Repo's, they have PDF's of the boards.

I don't think KiCad can export to PNG. You can export to PDF or SVG though.

If you open the schematics in KiCad, Click File and then Plot. You get the option for PDF and SVG and Plot All Pages

[chris-jh]

i am just checking if we did 250425 and 250466

[HovKlan-DH]

I have tried navigating in KiCAD and I gave up, so if you could do that and then grab an PNG of this in a good resolution, then it would be a great help. I will happily relabel this, if I have the PNG image.

I don't know exactly what is true for these replica boards, but they should be "original", and not optimized as that would differ from the original schematics. Better have bad quality schematics and then one can "kind of" trust what/where I measure, than and optimized version that gives a perfect image to a HDMI or whatever 😁

BTW: CRT already contains good quality schematics for 250407 and 250469 - both probably from bwack, so they are not problematic.

[chris-jh]

Try these ? Not done the 250466, i know Rob wants to do all the C64 boards.

Some of the others we have done at Board Folk, like the Commodore Max, we split the schematics up into different area's. like cpu, ram, rom, video and sound and also corrected them to match the board as the original schematics are not always correct.

C64-250425.zip

[HovKlan-DH]

Thank you @chris-jh - the quality looks great, and I will try to label these and see if I get any show-stoppers. I will get back to you.

Do you have a link for this project where this comes from, so I can proper credit it, if using it?

[chris-jh]

If you learn KiCad and how that softwarr works, you could make a plug in that can export the schematics and netlists that does this for you.like the iBom plugin that generates an html for locating components but also netlists and trace lines on the pcb too.example herehttps://openscopeproject.org/InteractiveHtmlBomDemo/html/motherboard.html

[HovKlan-DH]

For now I do not have any intention to support this kind of traces or CAD exports, as this would be a beast to support in the current setup - it will not scale for this level of details.

I have labeled the new schematics and it will be released later today in a new data update. I have noticed that when zooming in as much as possible, then it tends to get a little blurry. I am not sure what is causing this, but expect it is the PictureBox component in C#... but not sure.

I will keep the original schematics included also, and then people can disable them, if they do not want to see those.

Would appreciate to know when/if the 250466 replica schematics would be available, but thank you so much for providing a better quality for the 250425 one.

[chris-jh]

Kicad Exports as SVG, i used gimp to import at 300 dpi.

Do you want the SVG Files instead, then you can scale and manipulate the image yourself to your own needs ?

[HovKlan-DH]

No, PNG is good for now, as the image component does not support SVG. Maybe SVG would be nice to look in to also but ... so many projects, so not sure it will be soon 😂 No more is needed for 250425.

[HovKlan-DH]

@chris-jh - do you have a link for the project where the 250425 schematics come from?

I am not sure if you meant https://openscopeproject.org/InteractiveHtmlBomDemo/html/motherboard.html, which you did link, but this for sure is not a C64 board.

[chris-jh]

The 250425 is currently a private Repo with the Board Folk at the moment, not open to the public yet. I asked Rob if i can use the schematics for you.

That link is just a demo of what iBom in KiCad can produce. nothing to do with the c64. just an example.