GBA serial port on NDS?

Discussion in 'NDS - Flashcarts and Accessories' started by nitro2k01, Jan 10, 2008.

  1. nitro2k01

    nitro2k01 Member

    Jan 5, 2008
    Martin korth describes that he found the SI lead for the GBA serial port on the NDS mainboard. Does anyone know if the other pins have been found? (SO, SC, SD)

    I have my reasons for wanting a GBA link port on my NDS. [​IMG]
  2. arctic_flame

    arctic_flame GBAtemp ATMEGA8 Fan

    Nov 4, 2006
    England land
    If they had been found, they would be on gbatek. The pins may not exist at all externally.
  3. Crozone

    Crozone Member

    Oct 23, 2008
    GBATek says that the Pins ARE found internally, and are PROBABLY external pins. The only problem is that the DS has a Massive amount of pins, on both sides of the Main Board. Ever tried probing every single one with a multi-meter? In fact, its not just trying every one, its trying every pair, because you need two pins. And some of those pins are bloody tiny! I mean, most of the pins Wont be GBA, because their something totally unrelated (like the ARM9), but it's still going to take ages to find them.
  4. Lumstar

    Lumstar Princess

    Mar 6, 2006
    United States
    The BIOS code likely still contains the needed software to interface a link port, but whether it's physically possible or feasible to connect one is another story.
  5. agentgamma

    agentgamma I dont know what to put here

    Oct 5, 2007
    Sydney, Australia
    I think that the GBA section of the BIOS is a direct copy of the GBA BIOS.
    I remember that pressing start on the GBA when it boots up activated something to do with the link cables.
    That code WAS left in the DS GBA mode [​IMG]
  6. DanTheManMS

    DanTheManMS aka Ricochet Otter

    Jun 2, 2007
    United States
    There is a single byte that is different if I remember correctly. Otherwise it's exactly the same. This lets a GBA app detect if it's being run on a DS or not (look at Goomba Color as an example).