Comments (10)
I made my own stealth modchip for the PS2 with the help of your code. I found a handy signal that is High until the PS2 enters PSX mode (I just spam the unlock symbol while in PS2 mode). From there I just use your code. It works pretty well for the most part.
from psnee.
@LMS737 I believe the signal I used was 'GFS', at least that's what the Service Manual calls it. I'm not actually sure what the signal is for but it stays HIGH until the PS2 enters PS1 Mode. So you can use it to determine where you are in the boot process. You'll also have to wire a Reset signal if you want it to work when you reset the console. You can do this by wiring the reset pin on the Arduino to the power button on the PS2.
Also I wonder what you meant by "works well for the most part". What issues did you encounter, and did you manage to solve it?
It only works if you directly go into the game from boot up, meaning you can't go to the menu and then insert your game. I haven't figure out why it won't work when booting from the menu, but for my case it really doesn't matter.
from psnee.
Anybody? @ramapcsx2?
from psnee.
Oh, this is probably a bad idea.
The theory of operation could apply on a PS2, but due to the various differences, it would basically be whole new project.
I once got a very simple (unlock symbol spamming) modchip working in the PS2, so if you simply use an old 4 wire chip code, that would do it.
The bigger issue is with all the software protections.
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I assume the 4 wire method wouldn't allow for anti modchip games right? That's a bummer, but thanks for answering. Is the PS2 really that different in PS1 mode? I always assumed they would be virtually identical.
from psnee.
Yes, a lot of details are different. The hardware is (obviously) PS2 chips, but configured to run in a backward compatible mode.
The tricks to fool the PSX hardware don't apply 1to1.
from psnee.
I made my own stealth modchip for the PS2 with the help of your code. I found a handy signal that is High until the PS2 enters PSX mode (I just spam the unlock symbol while in PS2 mode). From there I just use your code. It works pretty well for the most part.
Is this for PS1 games on PS2 or is it an actual PS2 modchip? For some reason no one else has had the idea of using an Arduino as a PS2 modchip (Just PS1).
from psnee.
Sorry, it's just for PS1 games. PS2 modchips seem to be a bit more complicated, perhaps too much for an Arduino.
from psnee.
@LackofTrack Hello. I am also interested in getting this to work for PS1 mode inside a PS2. You said that you found a handy signal that indicates the current mode. Do you mind telling us which signal, and where you tapped it from, so it might also help others out?
Also I wonder what you meant by "works well for the most part". What issues did you encounter, and did you manage to solve it?
from psnee.
Sorry, it's just for PS1 games. PS2 modchips seem to be a bit more complicated, perhaps too much for an Arduino.
Maybe it would work with the Raspberry Pi Pico, or if Not that I'm sure it would definitely work with a raspberry Pi zero.
from psnee.
Related Issues (20)
- SCPH-1001
- Works great with an ATtiny85 on a PU-8 HOT 10
- Arduino Mini Pro 3.3v 8mhz and Japanese PU-7 SCPH-1000. Is there any additional step? HOT 1
- Pro Micro pinout column was deleted from readme HOT 1
- Update information on the PSX copy protection HOT 5
- RPi Pico support? HOT 9
- Is there Arduino normal micro support
- Should the RX and TX LED's be permamently on in the Pro Micro? HOT 3
- PM-41 NTSC J HOT 2
- Disc not recognized as Standard Disc HOT 1
- Question about running mod HOT 2
- Incorrect pinouts in guide.pdf for PU-8 HOT 2
- PU-8 playstation , using arduino mini pro 8 mhz, no disk detected with psnee HOT 2
- Cannot play ps1 backups with different region than console. HOT 1
- Help regarding ripped off point on sqck on PU-8 HOT 1
- Mega2560 Support? HOT 1
- Docs: Nano: PSNee 3.3v in VIN not working HOT 1
- Port code to Tiny avr 0 series HOT 3
- Does PSNee need to be flashed via SPI for a PU-7 board? HOT 9
- PU-7 all game discs being read as Audio CD's HOT 13
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