Re: C64A 82S100 JED?

From: Francesco Messineo <francesco.messineo_at_gmail.com>
Date: Sun, 24 May 2020 22:41:14 +0200
Message-ID: <CAESs-_x5AmARUoxem9i09kphMcL0XJqBwnE6RiH0nw5Hq-6RiQ_at_mail.gmail.com>
Can anyone please double check the attached file is a valid jedec for
the C64 PLA?
It should have the correct AND terms now.
Before I waste more chips that is...

Thanks

On Sun, May 24, 2020 at 3:13 PM Francesco Messineo
<francesco.messineo_at_gmail.com> wrote:
>
> By the way,
> the file pla.txt on zimmers (and on any funet.fi mirror) contains a
> corrupted jedec too, it's missing 3 lines of which 2 aren't
> "guessable" as it's fuse maps (unless one works from the equations).
> It isn't usable as it is, as the programmer will complain about format
> errors until one manages to fill the missing lines, then it obviously
> starts complaining about checksum errors.
> So, can anyone read a real 82S100 with a Data I/O programmer maybe? I
> only have the 93459 versions that can't be apparently read with my
> programmer (or are they protected maybe?).
> Does anyone know if there's still available any abel compiler so I can
> try to make my own jedec file?
> Thanks
> Frank
>
> On Sun, May 24, 2020 at 1:31 PM Francesco Messineo
> <francesco.messineo_at_gmail.com> wrote:
> >
> > Hm, I assume Data I/O would have fixed such a bug in the first place.
> > So are you saying that your programmer makes a good file but interpret
> > it the wrong way when programming?
> > Am I understanding it correctly?
> > Can anyone provide a "wrong" file then, so I can check if that's the
> > case on the 2900 (running the latest firmware available as of
> > today...)?
> >
> > On Sun, May 24, 2020 at 12:45 PM Frank Wolf <webmaster_at_frank-wolf.org> wrote:
> > >
> > > Just as an additional information:
> > >
> > > The TopMaxII Programmer which I used to create is one of the programmers
> > > doing it
> > > the wrong way.
> > >
> > > /Frank
> > >
> > > On 24.05.2020 12:23, Gerrit Heitsch wrote:
> > > > On 5/24/20 12:10 PM, Francesco Messineo wrote:
> > > >> 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
> > > >>
> > > >
> > > > What kind of clone? That might be important. A while back someone on
> > > > the forum64 site got a hold of a bunch of NOS PLS100 PLAs and was able
> > > > to program those. I got 2 of them and they work.
> > > >
> > > >  Gerrit
> > > >
> > > >
> > > >
> > >


Received on 2020-05-30 01:51:23

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