Nova compatible boards

[grunwald]

Dug a Nova adapter and cards out of the pile to put into a TT. Not having much success. Would anyone know if either of these cards are compatible? Thanks....

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[Steve]

All you can do is compare the DACs so the photos on Idek's website. The drivers are written for the DAC.

[czietz]

Which GAL on the Nova?
Correct jumper setting on the Nova?
Does EmuTOS recognize the cards?

[frank.lukas]

The card with the AT&T DAC should by to the T8 Nova Driver right. The other try the T0, 2,3,4,6,8 ...

Boot order is 1. emulator.prg, 2. menu.prg, 3. sta_vdi.prg and the two bib files (delete menu.inf) ...

Jumper setting on the adapter is MSTE ...

[grunwald]

I purchased the board over five years ago so I am not sure of the GAL. If anyone has the JED file, I can reflash. The jumper is set to 1-2 for the TT. I do not currently have EmuTOs on a set of chips, but this is probably a good time to do it. I installed #8 drivers last night. Emulator set 2 bombs, Menu seemed to work, then Sta_vdi set off 6-8 bombs and locked the system. I'll need to check it again tonight to be more precise.

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[frank.lukas]

The ET4 GAL is right. When you use the OGFA GAL you have to patch the Adapter Board ...

https://wiki.newtosworld.de/index.php?t ... VME_Karten

The VME Adapter is a unpatched one I think. Check it ...

Change OFGA GAL on the Nova VME ISA adapter

Disconnect VME row A Pin18 (AS).
VME row A pin20 (IACK) to GAL pin13
VME Row A Pin23 (AM4) to GAL Pin23


Jumper Set to TT is wrong. It must be set to MSTE (2-3) The set TT is for ATI MACH64 only. Emulator Programm must be work first.

[czietz]

Frank already mentioned the most important detail: for an ET4000, the jumper needs to be in the MSTE setting even on a TT.

As for EmuTOS: you don't need to program it into EPROMs necessarily. There is a .prg version, which includes Nova support, too: https://sourceforge.net/projects/emutos ... snapshots/

[frank.lukas]

As I can see, the two ribbon board connectors are unsoldered. Doesn't the whole thing fit into the VME slot anymore?

The round cables can cause problems, not because of the length.

[grunwald]

The cables are plugged in. The board just makes it into the slot. Bit of a bear to remove however....I'll make the suggested changes this weekend and report back. Thanks!

[grunwald]

Just a quick update... I updated the board as directed and reflashed the GAL to OGFA, moved the jumper to MSTE setting, and loaded up the #01 driver package for the board with the TR9C1710 DAC. The system throws a bus error (2 bombs) when it trys to load emulator.prg. Same results in two different TTs. I then burned EmuTOS onto some eproms. I get no response from the card whatsoever. When I try to run Emulator.prg from EmuTOS I get the following error detail. I believe that the video card may be the problem. I found another one on Ebay with the same DAC. It should be here by Sat.

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