Date   : Sat, 08 Mar 2008 23:03:05 +0100
From   : daniel.g@... (D.G. van der Pol)
Subject: TUBE chip, accessing 'Parasite' side - 16Mhz 65C02S

Op 7-mrt-2008, om 13:48 heeft Eelco Huininga het volgende geschreven:

> Fragula wrote:
>> David Warrington wrote:
>> Also somebody back then (oh the 90s for sure!) recalled that one  
>> or two
>> of the clock and/or control signals behave or are timed slightly
>> differently from the 6502A.
> There's a fix for that. By soldering a small ceramic capacitor over  
> two IC's you could fix the timing problem.

Can you give more information about this?
I have a Solidisk 4Meg 256k board with a 65C02 on it. It has never  
been very stable, especially at startup. It does run Basic 4 though.  
It could switch back to 2Mhz, which worked like a charm. But that  
reduced this accellerator to just a ROM/RAM shadow board. I still use  
it.
Maybe this board can be made more reliable by changing the timing.
Thank you very much.

Daniel


> Cheers,
> Eelco
>
>
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