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c0pperdragon / C64-Video-Enhancement

Component video modification for the C64 8-bit computer
MIT License
256 stars 36 forks source link

C128 support (#2) #64

Closed c0pperdragon closed 1 year ago

c0pperdragon commented 3 years ago

This is a continuation of https://github.com/c0pperdragon/C64-Video-Enhancement/issues/4

bodgit commented 2 years ago

They're charging between $75-$90 per chip (depending on quantity). They normally would be less than $10. That's quite a markup!

I think they are being produced, but they're being snapped up by volume buyers so there's none spare for people like us who are essentially hobbyists. I think I've purchased as many as 10 in one order, which is nothing really.

johansmolinski commented 2 years ago

Ok, I had no idea they originally were that cheap. Heck, an FPGA for less than $10?! Wow...

Do you have all other parts for what is needed to build a board that will fit inside a C128DCR?

thepebbler commented 1 year ago

They're charging between $75-$90 per chip (depending on quantity). They normally would be less than $10. That's quite a markup!

I think they are being produced, but they're being snapped up by volume buyers so there's none spare for people like us who are essentially hobbyists. I think I've purchased as many as 10 in one order, which is nothing really.

I've just grabbed two C128's (A C128D and a regular C128) , both are broken, but the plan is to get the C128D resurrected and wanted to get a the small board version, but don't have the kit to solder the FPGAs on!

Is anyone planning on doing a batch? I might be able to help source the FPGA if that is the blocker, I can ask in work and get our CEM team (they work with our CEMs making our PCBAs) to see if they can source the FPGA at a reasonable price, and get some at cost.

scorpio-ny commented 1 year ago

Before I order a PCB, I wanted to check here to see if anyone has an extra VIC-IIE PCB adapter or an extra assembled VIC II-E adapter they do not need and would be willing to sell? A while ago I had purchased a 64 kit from VGP in which I was saving for when I would get a C128 (finally acquired). Thank you!

johansmolinski commented 1 year ago

I am offering to trade a fully working C128 PAL with 6581, healthy yellowed, without PSU for a full c0pperdragon C128 kit that will fit inside my C128DCR. I can do whatever needed to fit it, if it means cutting things and relocating capacitors or whatnot, as long as the kit is complete. I live in Sweden, so I would prefer to do it within EU, but everything is possible.

c0pperdragon commented 1 year ago

c0pperdragon here. Even I don't have any of those boards. But maybe you would be interested in my follow-up product. It solves the same issue in a new way using a small mod board and an external RGBtoHDMI. See https://github.com/c0pperdragon for the C64 variant. If there is demand, I could also make a C128 version.

Johan Smolinski @.***> schrieb am Mi., 31. Mai 2023, 08:07:

I am offering to trade a fully working C128 PAL with 6581, healthy yellowed, without PSU for a full c0pperdragon C128 kit that will fit inside my C128DCR. I can do whatever needed to fit it, if it means cutting things and relocating capacitors or whatnot, as long as the kit is complete. I live in Sweden, so I would prefer to do it within EU, but everything is possible.

— Reply to this email directly, view it on GitHub https://github.com/c0pperdragon/C64-Video-Enhancement/issues/64#issuecomment-1569552090, or unsubscribe https://github.com/notifications/unsubscribe-auth/ACTIHVFCWMOFW5TBZBZOBV3XI3N25ANCNFSM43VMFECQ . You are receiving this because you were mentioned.Message ID: @.***>

johansmolinski commented 1 year ago

Thanks for prompt reply! Your link is to your profile. Which of the repositories are you referring to? And will it be usable for hooking up the C128 to a 15 kHz CRT on RGB? That's all I care about. :)

c0pperdragon commented 1 year ago

it is the wiki section of github.io . and currently the solution is for HDMI upscaling. but maybe i can dream up some DIY circuit to get RGB again.

Johan Smolinski @.***> schrieb am Mi., 31. Mai 2023, 10:08:

Thanks for prompt reply! Your link is to your profile. Which of the repositories are you referring to? And will it be usable for hooking up the C128 to a 15 kHz CRT on RGB? That's all I care about. :)

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rasivert commented 1 year ago

I could also make a C128 version.

Very much interested in a C128 version!

johansmolinski commented 1 year ago

Would the RGB2HDMI be able to output 15 kHz, like "direct video" on MiSTer? If so, you could probably use a cheap HDMI to VGA adapter to get good 15 kHz RGB that way.

Still I don't find the information you are referring to. I would really appreciate a direkt link, please. :)

c0pperdragon commented 1 year ago

https://github.com/c0pperdragon/c0pperdragon.github.io/wiki/VIC-II-dizer

c0pperdragon commented 1 year ago

I hope, I do not give away confident information, but videogameperfection.com seems to be in the process to stocking up on the C64 variant of the mod. Looking at the pictures of the C128DCR motherboard, at least the FPGA half of the mod may actually just fit. Maybe someone has/can make a VIC-IIe pickup board.

In case you can not get a suitable pickup board, you can even try a super-badass hack, I just came up with: Instead of putting a pickup-board between the VIC and its socket (which will only work when you have the correct board), you could instead piggy-pack the C64 pickup board onto the VIC. Most signals are at the same place, so you only need to cut away 6 of the pins and re-reoute these signals . If you want to go that way, I can give more detailed instructions.

c0pperdragon commented 1 year ago

I created a new thread for this topic, at this here is already much too long again: https://github.com/c0pperdragon/C64-Video-Enhancement/issues/89