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Internal OPL3 ISA 8 bits (PCXT)

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Reply 20 of 23, by spark2k06

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For now, I am deleted the GitHub repository. I would be grateful for TexElec that to comment on the license of the scheme of the Resound OPL that they published. As long as this is not clarified, this project that is based on it will not be public. Only available schematic in PDF format, as Texelec.

Last edited by spark2k06 on 2020-08-05, 06:45. Edited 1 time in total.

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Reply 21 of 23, by spark2k06

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I make versions 1.0 and 1.1 available in my Tindie store:

https://www.tindie.com/products/spark2k06/int … pl3-isa-8-bits/

Although it is not available like this in my Store, if someone is able to assemble it himself, I offer it in Kit for $10 dollars less.

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Reply 22 of 23, by matze79

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Don`t understand why you removed your kicad files, its different from texelecs project.
if they don`t want that anyone uses their schematic they should simply not release it ?
also its your gal code, so why bother ?

did you run in any issues with the spld ?
i have a opl2 card which seems to be incompatible with some mainboards, where the discrete logic version runs everywhere.
i have no logic analyzer so i can`t see whats exactly happening.

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Reply 23 of 23, by spark2k06

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I have made several changes, it is correct, and I think like you about the publication of the scheme but if Texelec does not give me specific public permission (I am sure they read this thread), out of respect for their work I will not publish the sources... I am only going to sell the PCBs that I have left to recover minimally the investment in the development. Whoever, can replicate it too and act as appropriate.

The truth is that I have not had problems with the use of SPLD, I also use it in another project that I have of RTC and without problems.

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