TransWarp IIgs GAL's - Upgrade now possible

["Henry" <apl2research@comcast.net>]

Hello everyone.

I'm excited to announce that anyone with a TranWarp IIgs who has been 
wanting to update or increase their speed will now be able to do so.  I have 
successfully been able to make copies of the last revised set of GAL's 
released by AE.  The GAL numbers and versions are as follows: 1A, 2B, 3E, 
4B, 5A, 6A, 7A, 8B.  The GAL's will be sold by the piece in the on-line 
store.  They will be added by next week.

I will also be offering the 32k Cache boards from SHH Systeme along with 
other items like cables, CPUs and crystal oscillators.  Along with the new 
Power Supply released just a few days ago I believe most users will be able 
to clock their accelerator to 12 MHz or better.  Look for these items to be 
available in the Store soon.

I know the TWGS-2B GAL was a DMA fix Applied Engineering issued. It is an 
absolute requirement for TranWarp to work at all with at least some RamFAST 
SCSI boards (e.g. the revision C boards).  RamFAST revision D does not 
require the 2B GAL. The Apple High Speed SCSI
card works with all TransWarp GS units as well.  The 3E GAL is for above 10 
MHz operation.

Here's a listing of the oscillators speeds:
Oscillator        TWGS Speed
32 MHz          MHz
36                   9
40                   10
48                   12
55                   13.75
60                   15

Any additions or correction to the above information will be appreciated.  I 
know there are some other oscillator speeds available, but I won't both 
listing them here.  If anyone is going fast then 15 MHz please let me know 
how.

Now some basic questions I have:  Does anyone know what the last revision of 
the ROM was?  I believe it to be 1.8S.  Also, is there a ROM difference from 
the 8k Cache card to the 32k Cache card?  Can I take an 32k Cache ROM and 
use it up upgrade an 8k TranWarp IIgs or vise versa?

Has anyone tried to read or examine the XC2064 FPGA on the TransWarp IIgs? 
Right now that is the only thing hold us back from cloning it.

I also have a TransWarp IIgs with an error message in the test menu.  It 
seems to fail the Non-volatile RAM test.  Anyone know which IC the NVRAM is?

Thanks in advance for all the help.  Feel free to contact me directly if you 
wish to purchase the GAL(s) ASAP.  My email address is listed in the "About 
US" section on the Website or email Support.


Henry S. Courbis
www.GSE-Reactive.com
Apple II Series Legacy Hardware - Come take a look at what we have to offer!