I need help with Metal Black, Taito F2 System
- Thread starter tovar
- Start date
ShootTheCore
Legendary
Hmm ... doesn't look like those PALs have been dumped for the PLD Archive. I own a Metal Black board but don't have a way to dump them.
Tailsnic Retroworks
Champion
Isn't there any person near you for sending them and be dumped?
Thank you so much for attending to my request!
Tailsnic Retroworks
Champion
Anyone?
ShootTheCore
Legendary
Sorry, I forgot to respond to this thread before. I don’t know anyone near me (Utah in the US) that dumps PALs. I’m interested in learning it but don’t currently own any equipment for it besides a variety of EPROM programmers.
Hammy
Enlightened
If they are " PAL L " they can be bruteforced with the 020 adapter....
PAL R cannot be done with this method, and PAL CE are hit and miss depending on the programming.
PAL R cannot be done with this method, and PAL CE are hit and miss depending on the programming.
Ape Cosplay
Grand Master
Unless an output is fedback on itself to create a state machine/latch.
Tailsnic Retroworks
Champion
I can test that
Tailsnic Retroworks
Champion
Checked the 3 pals socket. No one has output feedback to themselves.
Ape Cosplay
Grand Master
It's not something you can probe externally, it's an internal feedback inside the chip.
Something in the logic like:
out1 = out1 & !in1 # in1 & in2;
That means out1 latches in2 when in1 is high, when in1 is low it is fedback on itself to maintain its state.
Something in the logic like:
out1 = out1 & !in1 # in1 & in2;
That means out1 latches in2 when in1 is high, when in1 is low it is fedback on itself to maintain its state.
ShootTheCore
Legendary
I'm going to put together a DuPAL V3 board and see what I can do to help dump some PALs. In addition to several Taito F2 boards I have some Cave 68000 PALs that would be good to dump for the PLD Archive as well.
Tailsnic Retroworks
Champion
I meant. I tested all inputs/outputs and no union between them.