On 29 Sep 2011 at 16:01, Alexandre Souza - Listas wrote:
> I
brute-forced a HAL10L8 last week, using a PC and a little board
> consisting of a couple LS393 ripple counters and an LS151 8-way mux
> to serialize the data. Manuipulation was done with 2 data bits and
> one status bit from a printer port.
May I know more about that? :o)
My intent in the next couple of weeks is to blog it on Erik's VC
site. But as Dave says, combinatorial logic is pretty easy. Digging
inside of a GAL can be very challenging indeed if the security fuses
are blown (and on most commercial gear, they are).
--Chuck