|> From einet.com Tue Jul 12 01:16:25 1994 dthomas
> Date: Mon, 11 Jul 94 17:14:27 MDT
> From: einet.com (David B. Thomas) dthomas
> Message-Id: <einet.com> 9407112314.AA13398
> To: figment.mit.edupic
> Subject: protection?
> What's this I keep hearing about being able to break the protection on
> a pic? This is definitely something I'll need to know about, as I
> have a pic design that I will want to be able to protect in about 6
> months when we're ready to go into production.
The first $40 adresses can be read even if the PIC is protected.
The PIC is destroyed in the process.
I've only tested this on a windowed 16C54.
I've also written a program that does this automatically and generates
an INTEL dump file. (This is not the program called PICBUSTER)
I did this to be able to copy a cableTVdecoder, the code was more than
$40 words long so I didn't try it though.
No, you can't have my program and I won't tell you more than to read
the datasheets on how to program the PIC's.
The same decoding principal is said to work on some PAL's too...
/Anders 'Hedex' Hedberg
Solution: Have no secrets below adress $40.
> Solution: Have no secrets below adress $40.
Excellent! That's all I needed to know and my program is large enough
that there's plenty of mundane code I can stick from $00 to $3f.
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