C64A 82S100 JED?

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Sun, 24 May 2020 12:10:26 +0200
Message-ID: <CAESs-_zfDMVZCGm0dZB_0WGQsyC525PPj3WPACoF=+YCOyW6uQ_at_mail.gmail.com>
Hi all,
I've just programmed an 82S100 (actually a clone, but my DATA I/O 2900 didn't
complain and verifies ok) with the .jed file contained here:
http://www.zimmers.net/anonftp/pub/cbm/firmware/computers/c64/82S100%2bJedec.zip

The programmed IC gives a black screen on my SX-64 (It works fine with
the original F93459 chip).
The F93459 IC seems unreadable with the 2900 anyway, it gives just an almost
all "1" jed file, so maybe they can be protected or the 93459 isn't
really readable
as an 82S100 (the 93459 is unsupported by the 2900 it seems).
Can anyone confirm that jedec file is good? Checksum verifies correctly too.

WTF?

Frank IZ8DWF
Received on 2020-05-30 01:46:27

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