GB Camera dissassembly

Discussion in 'Nintendo Game Development' started by xmog123x, Oct 30, 2010.

  1. xmog123x

    xmog123x Peppy Member

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    Anyone ever tried to remove the mitsubishi chip with the cmos sensor off the gb camera, then tried to get just the cartridge without the sensor to work?
    I'd like to use the sensor for a robot and still use my cartridge and it's trippy-h tracker. Can anyone help me with this?:p
     
  2. splith

    splith Resolute Member

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    Why ruin a GB camera? You can get miniture CMOS cameras on ebay for £2.
     
  3. xmog123x

    xmog123x Peppy Member

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    It's easy to interface it, there're already completed projects so it's well documented. Plus, they have edge detection and other useful stuff.
     
  4. fro

    fro Spirited Member

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  5. xmog123x

    xmog123x Peppy Member

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    Yeah, I've seen those, but they don't answer my question. How to get the cartridge still working even if the cmos camera has been removed? Cause it doesn't start up
     
  6. ASSEMbler

    ASSEMbler Administrator Staff Member

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    Try feeding it data on 14, it says up to 2v. Try half a volt and you'll probably get an all grey screen response.

    Don't blame me if you get the magic smoke however.
     
  7. xmog123x

    xmog123x Peppy Member

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    That's what I thought, Just giving it data on the analog output pin via milimeter set on ampers.

    edit: nope, doesn't work. It must have some kind of start up sequence ;/
     
    Last edited: Nov 1, 2010
  8. fro

    fro Spirited Member

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    Yes it has a start up sequence, a part of it being a check on $a000 to see if the camera hardware has reported in ok. Without the hardware it never gets set and thus you get a blank screen.

    I hacked around and noticed the following.
    You can read more about the GB Camera here - http://www.devrs.com/gb/files/gbcam.txt

    Edit:

    Ok i got this to emulate by holding $a000 to 00 via the cheat feature in BGB. On real hardware you could use a Game Genie or other cheat device to hold $a000 also.
     

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    Last edited: Nov 3, 2010
  9. ASSEMbler

    ASSEMbler Administrator Staff Member

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    knowledge is pow pow powaa
     
  10. xmog123x

    xmog123x Peppy Member

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    That's awesome stuff :O Hmm, How about I replaced the cam with an attiny and send the start-up sequence?

    EDIT: WOOT. Managed to start-it up! All you need to do is get READ(10), VOUT(14), to GND and you're good to go :)

    Thanks fro for all the info
     
    Last edited: Nov 5, 2010
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