PSone modchip code for PIC

Discussion in 'Sony Programming and Development' started by ASSEMbler, Mar 21, 2009.

  1. ASSEMbler

    ASSEMbler Administrator Staff Member

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    Does anyone have the code for programming a PIC
    chip for use in psone? I lost my archive and now
    I can't chip the 200 or so I have lying about.

    My plan is to chip them and send them to a
    third world country with lightspan discs.
    Given the price of the lightspan discs they would
    be using cdr backups to protect the discs.

    Kevin
     
  2. alphagamer

    alphagamer What is this? *BRRZZ*.. Ouch!

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    Last edited: Mar 21, 2009
  3. ASSEMbler

    ASSEMbler Administrator Staff Member

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    Looks outwardly promising. Thanks.
     
  4. raylyd

    raylyd Guest

    if you need i have all mod chip codes for all psones and psx and diegrams
     
  5. ASSEMbler

    ASSEMbler Administrator Staff Member

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    I'd much rather get it from a site member than some torrent raylyd.
    PM sent.
     
  6. darkportrait

    darkportrait Spirited Member

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    Last edited: Mar 21, 2009
  7. Evangelion

    Evangelion Spirited Member

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  8. Tchoin

    Tchoin Site Patron

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    I don't have the code but that is one noble idea. :thumbsup:
     
  9. djelaba

    djelaba Benzin !, Site Supporter 2013

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    Onechip (hex here) for 12c508 is working great for me (psone). I don't know if the other hex will work on psone. Use the 8-wires version.
     
  10. Piratero

    Piratero Peppy Member

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    Just curious. Will the PsOne systems be able to play any CD-R game after the mod? It should be possible to allow only specific games...
     
  11. Evangelion

    Evangelion Spirited Member

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    Some HEX just allow you to use original imported games, but CD-Rs will not work with these modchips.
     
  12. MottZilla

    MottZilla Champion of the Forum

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    Evangelion, you would have a hard time finding a chip like that. Copy protection and region protection are the same thing. While it is possible though more complicated to patch output to match your region but not boot a CD-R, it's far more simple to do a standard mod.

    Assembler, the 12F629 PIC code from euraasia I think, you should know it won't play Anti-Mod games, also it won't allow for disc swapping. The PIC code that is available will send all 3 region's security codes many times at power up, and then it stops completely. You can make a simple change to keep it going all the time, it still won't play anti-mod games but it will play multi disc games or any other swapping of discs will work too.

    Also I think the older 12c508 chips from back in the day are very hard to find now as they are obsolete.
     
    Last edited: Mar 24, 2009
  13. Calpis

    Calpis Champion of the Forum

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    It shouldn't be hard to mod the code for multi-disc games; a free input could be used to detect a transition of lid open->closed in order to restart the timer. Since the 508 only holds 512 program words, it won't be terribly difficult to disassemble!

    12C508/509 are still easy to find but they actually cost more than the 12F508 which are programmable with common modern programmers like PICkit2.
     
    Last edited: Mar 24, 2009
  14. ASSEMbler

    ASSEMbler Administrator Staff Member

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    SO no one has the stealth code? Can I just buy one and dump it?
     
  15. djelaba

    djelaba Benzin !, Site Supporter 2013

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    You can try to adapt the Onechip code to 12F629. I was going to, but I bought a 12C508 (for a couple €), and I lost interest in the project.
     
  16. SamY

    SamY Active Member

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    I might have it lying around. will check
     
  17. MottZilla

    MottZilla Champion of the Forum

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    I have not seen Stealth code for the 12F629, only the older 12C508. If you can program that, the stealth code was in that package linked to earlier in the thread.

    Calpis, if you hooked a free input to the lid sensor, you could make a Stealth mod. But I never looked into how you do that, instead I just modded the code to loop sending the SCEA code constantly which allows you to play everything other than anti-mod games. If you supress all normal security code output, and instead watch the lid status and send 3 of the correct code strings at the correct time after lid open to close status that's all stealth really is. But I've never programmed for a PIC before so I couldn't figure something like that out without investing some time into it.

    If someone comes up with stealth code for a 12F629 I'd really like to know as I have 18 or so of those around.
     
  18. SamY

    SamY Active Member

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    I have never seen a stealth 12F629 code being released, only the non stealth. Now considering the old codes on 12C508 these can also be burnt on 12F508 if I'm correct and which is reprogrammable at least. Just in case you have not seen it, Kevin, I sent you a pm with a link to a rar file containing 'almost' all (if not all) hexs.
    and btw they are much cheaper than 12C508 :p
     
    Last edited: Mar 26, 2009
  19. ASSEMbler

    ASSEMbler Administrator Staff Member

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    Yeah I got that thanks.

    I have to buy a pic programmer off ebay and then hopefully get some help here in modding all of them.
     
  20. MottZilla

    MottZilla Champion of the Forum

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    Well if you're certain 12F508 is compatible with the 12C508 HEX then making your own stealth mods should be very easy. Unfortunately for me the PIC programmer I got for the 12F629 can't handle the 12F508. If someone tests it out and has success it'd be nice to know exactly which HEX file they used and what install diagrams. I have a few PS1 systems modded with non-stealth mods that I wouldn't mind changing to stealth ones.
     
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