Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)
Jim Brain
brain at jbrain.com
Tue May 2 22:11:16 CDT 2017
On 5/2/2017 6:07 PM, Peter Cetinski via cctalk wrote:
>
>> Is the file for the PAL available to program new ones? If the items are not registered, I can read out the equations.
>
> Theses PAL equations specifically to allow the 6Mhz board to run Xenix 3 do not exist AFAIK. I do have a PAL upgraded board but have not yet verified if it works. If there is a way to safely reverse engineer the PALs, I might consider trying.
If they are 16L8s or similar, they can be easily reverse engineered with
an EPROM reader and Logic Friday. I picked up the eBay PAL upgraded
boards, so I will see when they arrive.
Jim
--
Jim Brain
brain at jbrain.com
www.jbrain.com
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