gbadev.org forum archive

This is a read-only mirror of the content originally found on forum.gbadev.org (now offline), salvaged from Wayback machine copies. A new forum can be found here.

DS development > Shared Pins?

#33385 - wrath_child - Sun Jan 02, 2005 8:12 pm

Does anyone know if the gba slot and the ds slot share any pins? if so this might indicate the ablity to boot ds code from the gba slot.

#33386 - haruguchan - Sun Jan 02, 2005 8:21 pm

i think the only way to run ds code from the gba port is making a boot loader that runs from the ds port and tells ds to run code from the gba port. i don't think any shared pins could matter at all, the two slots are different.

#33388 - wrath_child - Sun Jan 02, 2005 8:28 pm

ya a boot loader is probley gona be the wat to boot ds code from the gba slot but i was just wondering if anyone knew 100% they wernt joined in any way and i dont mean like grounds shared i mean like data lines shared

#33389 - Abscissa - Sun Jan 02, 2005 8:37 pm

I doubt it since the GBA carts are parallel, and the DS carts are more of a serial-ish design. If they had any (important) lines shared, I don't see how they would be able to play nice with each other. Especially since we know that DS carts can access stuff that's in the GBA slot.

#33391 - willgonz - Sun Jan 02, 2005 9:15 pm

darkfader has already put a DS game on a GBA Flash Cart and played it. Here is the video http://137.224.220.30/hack_ds-df.avi
_________________
│?ig │
All of this is research. You are going to see theories come and go. Things you think can't be done, will be done. But because you are here, you'll be the first to know.

#33406 - Alex Atkin UK - Mon Jan 03, 2005 1:54 am

Quote:
darkfader has already put a DS game on a GBA Flash Cart and played it.


Yes but that WAS by faking a bootloader in the DS slot and telling the DS to execute the rest of the code from the GBA slot.[/code]
_________________
[Images not permitted - Click here to view it]

[Images not permitted - Click here to view it]

#33428 - Boeboe - Mon Jan 03, 2005 7:41 am

Alex Atkin UK wrote:
Quote:
darkfader has already put a DS game on a GBA Flash Cart and played it.


Yes but that WAS by faking a bootloader in the DS slot and telling the DS to execute the rest of the code from the GBA slot.[/code]


you make it sound like it's no big deal..

#33446 - Alex Atkin UK - Mon Jan 03, 2005 2:38 pm

What would be the point of me trying to go into the details of how DarkFader did it when I only understand the basics?

I dont think I was implying it was simple, I was merely saying that it HAS been done but this wasnt purely with the GBA slot it DID require a patch of sorts through the DS slot.
_________________
[Images not permitted - Click here to view it]

[Images not permitted - Click here to view it]

#33477 - netdroid9 - Tue Jan 04, 2005 2:55 am

Yeah, a patch of sorts. Didn't DarkFadar use ARM7 code to jump to the GBA slot and execute a rom dump of Metroid Prime: First Hunt?