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SID LPT (and maybe SSI 2001 LPT.. :-) )

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First post, by matze79

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Hi

i started some time ago to design a SID LPT Testing Plug ,

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but Kanpai from dosreloaded.de got the same idea almost same time and already ordered some PCBs.
So he send me one.
I added a DC-DC Booster for real SID IC.

Both are based on the Design from:
http://www.loper-os.org/vintage/parallelsid/parasid.html

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But it seems Vice has some Bugs in its LPT SID / PARSID Support.
If it gets correctly detected it will crash with Memory Corruption.

I will report back with more News when we get Vice running correctly!

Trying to get DOS Version running and Compilers for MS-DOS.

Stay tuned!

https://www.retroianer.de - under constructing since ever
https://shadowcircuit.de - german retro computer board

Reply 2 of 6, by matze79

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Thanks, that would be nice.

there will be still some changes, like allowing select different Frequencys to match ntsc/pal systems.
Had no time to continue yet.
i`m struggling to get older versions of vice to compile.

https://www.retroianer.de - under constructing since ever
https://shadowcircuit.de - german retro computer board

Reply 3 of 6, by matze79

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Still no success with Vice, it only access parallelport one time during detection, then nothing anymore.
Parsid is selected, and its not playing over Soundcard..

No Action for CE/Adress Latch at all haha

i hoped i could avoid making a testing program, but it seems i will not.

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https://www.retroianer.de - under constructing since ever
https://shadowcircuit.de - german retro computer board

Reply 4 of 6, by matze79

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https://youtu.be/eqFdJ_1xA7M

works.. First Tones !

https://www.retroianer.de - under constructing since ever
https://shadowcircuit.de - german retro computer board

Reply 6 of 6, by matze79

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Trying to get Vice Build on djgpp, no success so far yet.
Its needed to modify the Auto Detection Routine.
There a lot of issues with DJGPP 😒, specially with building needed dependencies.

-> Detection Fine with ARMSID on LPTSID
-> Detection fails (often) with MOS6581
-> Plugging ArmSID first, then removing it and change it with MOS6581 Plug -> Vice plays just fine.
-> Adding Bus Driver -> also did not help with detection.

https://www.retroianer.de - under constructing since ever
https://shadowcircuit.de - german retro computer board

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