Discussion in 'Modding and Hacking - Consoles and Electronics' started by Mord.Fustang, Oct 20, 2014.
Thanks! BTW I'm sorry I took this thread off-topic...
lol no worries!
youre right we overdoit many thanks for porting it for 12f683
I flash the pal version on mayumi 4 to 12f683 pic, and I use it on 7502 pal console and is working ok thanks.
just curious, what setup cd are you referring to?
It's an ISO you burn to a CD and it installs freemcboot on your memory card. The console needs to be chipped. Google is your friend my friend. "Free McBoot CD ISO Ready to Install"
Quote from download page:
Recently I've done a lot of ported Mayumi 12F629 testing with multiple PM-41 (A) and PM-41 (2) (A) boards and I can say that the 12F675/12F629 port definitely isn't working on the older and more-common PM-41 (A) PSone even though it works great on the newer PM-41 (2) (A). I'm using the same points successfully with 12C508A and the original HEX. Just thought I'd share since it could save someone a lot of time.
That's strange and unfortunate. Thanks for trying it out and testing it though! Unfortunately, I don't have either of those PSOne models to test it myself.
Edit: did you use a decoupling cap with it?
Does anyone remember what the configuration options should be for programming the MM3 code to a 12C508A using the GQ-4X? I'm using a GQ-3X but it should be the same.
The default config on a blank chip is reported as:
Oscillator: External RC
Watchdog Timer: On
Code Protect: Off
Master Clear Enable: External
and the 12C508A chip pinout is:
Pin 1: VDD
Pin 2: GP5OSC1/CLKIN
Pin 3: GP4/OSC2
Pin 4: GP3/MCLR/VPP
Pin 5: GP2/T0CKI
Pin 6: GP1
Pin 7: GP0
Pin 8: VSS
I'm installing this on a PU-8 board, following the instructions from here.
The instructions indicate I don't need to connect pins 2 and 4. Does that mean that Oscillator setting should be "Internal RC" and that the Master Clear Enable should be "Internal"? My understanding is that I should turn off Watchdog Timer and Code Protect. In that case, the configuration would look like this:
Oscillator: Internal RC
Watchdog Timer: Off
Code Protect: Off
Master Clear Enable: Internal
Thanks in advance!
You are correct - but it's also worth pointing out that the PU-8 / MM3 wiring you reference is not entirely reliable as far as stealth goes. It's better than using 4-wire mode since it bypasses some modchip checks, but there are titles it fails on.
There is no 100% stealth solution for PU-8 as far as I know.
Excellent, thank you! Someone else told me that Watchdog should be on and Master Clear Enable should be external. So confusing. Any clarification?
There is no watchdog service code in the MM3 hex, so turning the watchdog on will result in the chip constantly restarting. Setting MCLR to external will result in the chip being reset every time you press the reset button on the console - which means that you won't be able to change the operating mode since you have to hold reset down to change modes.
I got the mod chip to work and now am troubleshooting a bit. Thanks for your help!
There's always PsNee, of course. It works with full stealth on all console revisions
The hex for 12F675 works perfectly in my SCPH-7000 (NTSC-J), and SCPH-7501 (NTSC-U) consoles.
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