A few... improvements
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eslapion
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A few... improvements
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Last edited by eslapion on Fri Jul 31, 2020 4:52 am, edited 1 time in total.
Be normal.
Re: A few... improvements
I am not a knower of PCBs. Am I looking at a newly designed C64 motherboard? 
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highinfidelity
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Re: A few... improvements
Nice PCB, but what's the point?
GOD is REAL. Unless declared DOUBLE PRECISION.
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eslapion
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Re: A few... improvements
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Last edited by eslapion on Fri Jul 31, 2020 4:53 am, edited 1 time in total.
Be normal.
Re: A few... improvements
there are at least two more boards available, btw ...
https://github.com/bwack/KU-14194HB-RevB-KiCad (weird idea to clone this board) -> https://twitter.com/hashtag/c64plus?src=hash
https://github.com/boelle/326298-Rev-A-Kicad
no idea what improvements are planned for those (as you said, asking usually just leads into tons of useless ideas, so they dont even ask, or tell) - and afaik both are still in "lets first build an unmodified one and verify it works" stage.
i probably wouldnt change much, using SRAM seems to be the most interesting improvement (ie eliminate the VSP problem). perhaps add a reset button and some clamping diodes to joystick ports. other than that... works for me
https://github.com/bwack/KU-14194HB-RevB-KiCad (weird idea to clone this board) -> https://twitter.com/hashtag/c64plus?src=hash
https://github.com/boelle/326298-Rev-A-Kicad
no idea what improvements are planned for those (as you said, asking usually just leads into tons of useless ideas, so they dont even ask, or tell) - and afaik both are still in "lets first build an unmodified one and verify it works" stage.
i probably wouldnt change much, using SRAM seems to be the most interesting improvement (ie eliminate the VSP problem). perhaps add a reset button and some clamping diodes to joystick ports. other than that... works for me
I'm just a Software Guy who has no Idea how the Hardware works. Don't listen to me.
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eslapion
- ultimate expander
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Re: A few... improvements
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Last edited by eslapion on Fri Jul 31, 2020 4:53 am, edited 1 time in total.
Be normal.
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cbmeeks
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Re: A few... improvements
Last year I designed my first 8-bit 65C02 computer and had the boards made. It has a 65C22 onboard and four expansion slots with a similar scheme to the Apple II.
Why? Like you...because I wanted to.
So I totally get it. I say go for it and keep us posted.
Great work!
Cat; the other white meat.
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cbmeeks
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Re: A few... improvements
Well, I don't know how much I can personally provide. As much as I know about the C64, I'm at a loss on the motherboard design (although, I'm learning more about it).
One thing I did on my SBC was label overkill. Since I have four slots, I put a nice label next to each pin so that I never had to look anything up. I also labeled each IC and their pins. My board was more for development and training so lots of labels really benefit it. A production/consumer board may not need that much. But I still like lots of labels to tell me what things do on the board.
Anyway, just my $0.02.
One thing I did on my SBC was label overkill. Since I have four slots, I put a nice label next to each pin so that I never had to look anything up. I also labeled each IC and their pins. My board was more for development and training so lots of labels really benefit it. A production/consumer board may not need that much. But I still like lots of labels to tell me what things do on the board.
Anyway, just my $0.02.
Cat; the other white meat.