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Re: CPLD replacement for ZX8301
Posted: Wed Apr 10, 2024 12:07 am
by martyn_hill
Hi everyone!
Thanks to Leon's incredible perseverance, I was able to test his latest (S)GC compatible update to the basic CPLD-based 8301 ULA replacement.
I'm delighted to report that it works a treat on my (Tetroid cloned) Gold and Super Gold cards once reprogrammed!
I am yet to explore the optional 15-colour (RGB-I) mode and will share my findings here in due course.
Thanks again, Leon!
Re: CPLD replacement for ZX8301
Posted: Fri May 17, 2024 6:25 pm
by lliont
Vitaliy (tetroid) designed a very compact pcb of almost the size of the ZX8301 IC for the cpld replacement and I adjusted the pinout of the cpld to fit.
So now there is a nice compact version that works with GC and SGC.
Re: CPLD replacement for ZX8301
Posted: Fri May 17, 2024 8:22 pm
by Cristian
So cooooool!

Re: CPLD replacement for ZX8301
Posted: Sat May 18, 2024 7:49 am
by Pr0f
Excellent news!
Re: CPLD replacement for ZX8301
Posted: Sat May 18, 2024 12:06 pm
by Popopo
Tiny and beautiful!
thank youuu!
Re: CPLD replacement for ZX8301
Posted: Sat May 18, 2024 10:02 pm
by tetroid
The black version

Re: CPLD replacement for ZX8301
Posted: Sat May 18, 2024 10:34 pm
by Popopo
Wauuu,
bravo! Such a black beauty!
And great your idea about the pins removed.
Is it a OpenSource & hardware development?
Re: CPLD replacement for ZX8301
Posted: Sun May 19, 2024 2:17 pm
by Peter
lliont wrote: Fri May 17, 2024 6:25 pm
Vitaliy (tetroid) designed a very compact pcb of almost the size of the ZX8301 IC for the cpld replacement and I adjusted the pinout of the cpld to fit.
Amazing! That would have been my favorite from the start. What is the easiest way to get hands on it?
Re: CPLD replacement for ZX8301
Posted: Fri Jun 14, 2024 11:30 am
by Peter
No reply = not yet available?
Re: CPLD replacement for ZX8301
Posted: Sat Jun 15, 2024 7:35 am
by lliont
Ask Tetroid about the availability of the board.