Hi
Yes there are totally useless pins and one nc pin I think, so if one wishes he could use them, also the wires are not needed for issue 6 and 7 boards.
I like it protruding but maybe a bit less, I make pcb's fast because as you have noticed I change the specs and features constantly ( I hope for the best)
"The ever changing card"
FPGA replacment for the ZX8301 ULA and more
Re: FPGA replacment for the ZX8301 ULA and more
But this I think it is the final version maybe with only minor changes.
Leon
Projects: https://hackaday.io/projects/hacker/357657
Projects: https://hackaday.io/projects/hacker/357657
Re: FPGA replacment for the ZX8301 ULA and more
Ilint, Brilliant!!lliont wrote: ↑Wed Apr 24, 2024 4:35 pm As Peter and one's complement suggested an expansion card board is ready and it solves many problems.
It also needs two wires and a small board over zx8301 socket but it is so much easier to install and no need for 3d printed plate for the ports.
I also changed fpga to the newer cyclone 10 LP that I finally found in stock.
Now that the installation is simpler, will there be (at some point) a public batch available for enthusiasts?
Re: FPGA replacment for the ZX8301 ULA and more
Yes and this with an 8-bit bus vs 16 bit of Gold card but speed is not everything.
I'll try to make a batch after more testing to every QL I can find.
I'll try to make a batch after more testing to every QL I can find.
Leon
Projects: https://hackaday.io/projects/hacker/357657
Projects: https://hackaday.io/projects/hacker/357657
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- Over Heated PSU
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Re: FPGA replacment for the ZX8301 ULA and more
Yes, the specialty is that you are doing it with a 68008, which gives it a nice retro flavour.
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- Over Heated PSU
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Re: FPGA replacment for the ZX8301 ULA and more
Oh I hadn't noticed the 68HC001FN16, so in the 8 bit data bus mode it provides the all important A0 for the QL (IIRC Gold card ingot has to deal with that).