VectorGlow
Student
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- Nov 14, 2015
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Way too expensive though and good luck finding a suitable QFP160 socket.
Also, the specs on the page are wrong - the page states that it's a QFP100 - it's not, it's a QFP160.
Also, the specs on the page are wrong - the page states that it's a QFP100 - it's not, it's a QFP160.
VectorGlow
Student
- Joined
- Nov 14, 2015
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But who would pay such a price? The only boards which use them are CPS1 and CPS2 to the best of my knowledge and I can't imagine anyone wanting to pay such an extortionate price for just one part; people will just buy another CPS1 or CPS2 A board instead. But of course the seller presumably doesn't know this, to them it's just one part among many hundreds of thousands which they sell.
Notsuoh
Student
He has reverse engineered the entire board and his example is cycle accurate. If you would like to contact him and discuss it with him, I would be more than happy to give you his contact details. What do you mean by black box? My meaning is FPGA and the CPS-A-01 has been reverse engineered.
Notsuoh
Student
J
jassin000
We need a 100% reproduction CPS1 stack with FPGA based customs?
I'd buy that for a dollar!
Notsuoh
Student
The MiSTer FPGA platform currently has the CPS1 and work is underway for the CPS2 (very close), I would say it's only 2-3 months away from completion. I have my MiSTer rig, I only have Final Fight and a Street Fighter 2 CPS1 boards to compare it to, but through my analogue display it is perfect (booting and running side by side with original hardware and play/sound feeling). I would still love a cheap FPGA drop in replacement for simulation of the CPS-A-01 IC, as I also have a Final Fight CPS1 board with a more than likely dead CPS-A-01 IC.We need a 100% reproduction CPS1 stack with FPGA based customs?
I’m afraid that FPGA CPS1 implementation is only “time accurate” related to the signals of the system, but is not really accurate at gate level as @Apocalypse states, so it doesn’t work as is for making reproduction to be installed in original hardwareThe MiSTer FPGA platform currently has the CPS1 and work is underway for the CPS2 (very close), I would say it's only 2-3 months away from completion. I have my MiSTer rig, I only have Final Fight and a Street Fighter 2 CPS1 boards to compare it to, but through my analogue display it is perfect (booting and running side by side with original hardware and play/sound feeling). I would still love a cheap FPGA drop in replacement for simulation of the CPS-A-01 IC, as I also have a Final Fight CPS1 board with a more than likely dead CPS-A-01 IC.We need a 100% reproduction CPS1 stack with FPGA based customs?
Raph_friend
Grand Master
It may work if well implemented, but like i said before, it's not a RE, but custom's reimplementation. It does samething, using different engineering.I’m afraid that FPGA CPS1 implementation is only “time accurate” related to the signals of the system, but is not really accurate at gate level as @Apocalypse states, so it doesn’t work as is for making reproduction to be installed in original hardwareThe MiSTer FPGA platform currently has the CPS1 and work is underway for the CPS2 (very close), I would say it's only 2-3 months away from completion. I have my MiSTer rig, I only have Final Fight and a Street Fighter 2 CPS1 boards to compare it to, but through my analogue display it is perfect (booting and running side by side with original hardware and play/sound feeling). I would still love a cheap FPGA drop in replacement for simulation of the CPS-A-01 IC, as I also have a Final Fight CPS1 board with a more than likely dead CPS-A-01 IC.We need a 100% reproduction CPS1 stack with FPGA based customs?
I can’t explain it better!It may work if well implemented, but like i said before, it's not a RE, but custom's reimplementation. It does samething, using different engineering.I’m afraid that FPGA CPS1 implementation is only “time accurate” related to the signals of the system, but is not really accurate at gate level as @Apocalypse states, so it doesn’t work as is for making reproduction to be installed in original hardwareThe MiSTer FPGA platform currently has the CPS1 and work is underway for the CPS2 (very close), I would say it's only 2-3 months away from completion. I have my MiSTer rig, I only have Final Fight and a Street Fighter 2 CPS1 boards to compare it to, but through my analogue display it is perfect (booting and running side by side with original hardware and play/sound feeling). I would still love a cheap FPGA drop in replacement for simulation of the CPS-A-01 IC, as I also have a Final Fight CPS1 board with a more than likely dead CPS-A-01 IC.We need a 100% reproduction CPS1 stack with FPGA based customs?
kazuo
Champion
Bringing this one back from the dead, as it looks like there may be some progress on reverse engineering this custom chip:
https://twitter.com/WydD/status/1416405918128951297
Exciting times!
https://twitter.com/WydD/status/1416405918128951297
Exciting times!
VectorGlow
Student
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- Nov 14, 2015
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- 57
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Excellent news, a replacement for that chip is badly needed.
Last edited:
Mechanos71
Student
Amazing news! My CE board set can’t wait!
ForestOfDreams
Professional
Any update on reverse engineering?
It was completed
https://gitlab.com/loic.petit/cps2-reverse/-/tree/master/DLs/DL-0311/
Much of cps2 as well if you go back to the root of that gitlab project
duffcon
Professional
Interesting, so in theory this could mean reproduction A-01 Chips? That would save so many boards!