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Basically, you have to have the following GALs to go over
10 mHz:
1A, 2B, 3E, 4B, 5A, 6A, 7A, 8B
All TWGS should have the A GALs. So you need:
2B - DMA fix
3E - for above 10 mHz operation
4B - dunno
8B - dunno
2B DMA fix was available for free. You need to call AE's
900 number and ask for it. You might need to pay shipping.
Couple of people say it's no longer free. But it's worth
asking though. Hint: be persistent!
BTW, using a 50 MHz oscillator makes a TWGS run at 12.5 MHz, not 10.
Although the WDC processors are sold as "14 MHz" chips, they cannot be run
that fast. At least, mine can't. If I interpret the "shmoo plot" that came
with the WDC chip correctly, the upper bound for a normal use
(no voltage increase) of my WDC chip is 12.8 Mhz. So, I let my TWGS run at
12.5 Mhz (with a 50 Mhz oscillator) and I'm happy with it.
Another possible source for your problem might be overheating. You might try
to open the GS's case and see if the problem appears or not.
|>
|> Any help would be appreciate.
|>
|> Thanks,
|> -Erik.
Stefan Voss
(voss@ira.uka.de)