Re: Transwarp upgrades

[Rubywand <rubywand@swbell.net>]

Ben Zotto writes ...
> 
> Hi all,
> For those that may recall my trials with my TWGS, the upshot is that
> it now works, in a new motherboard.  Go figure. (Thanks to all for the
> help).
> 
> So NOW, I'd like to
> get it going a little speedier than it is.  Currently, the oscillator
> is at 25Mhz, which is nice but only doubles or so the overall GS speed.
> 
> I don't have access to an EPROM burner so doing a homegrown firmware
> upgrade to v1.8 is impractical (and thus disallows Tony Diaz' 64kb
> cache upgrade which would be nice, but...)
>

     The 32k cache upgrade with new EPROM is the easiest way to get a
significant speed boost (and enable future speed increases).  You can get the
upgrade from SHH Systeme. See ...

http://home.swbell.net/rubywand/Csa2ACCEL.html#022 .

 
> So I'd like to do something with it, and it seems a straight speed
> upgrade is best.  (Opinions on this welcome).  I figure without
> getting a new chip from WDC I can probably try a 32Mhz oscillator
> or even a 36Mhz one?  Can anyone offer an opinion on this,

     28MHz might be okay without the new 65C816 from WDC.


> or
> tell me where a good place to find such oscillators is?  My local
> Radio Shack doesn't carry them, and most places online seem to
> sell them in bulk.
> 

     You can get them from Mouser, Digi-Key, and several other places. See the
FAQs Vendors page at http://home.swbell.net/rubywand/A2FAQs3VENDORS.html for
parts sellers.



Rubywand