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    GP2X Debugging The 940t

    Hi, Does anyone have any tips or tricks they use to help debug things running on 940t? I have some code that runs fine on my PC, but when I run it on the GP2x I get nothing... Obviously gdb/valgrind doesn't work, and I haven't been able to get my implementation of printf to give me anything...
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    GP2X Ann: Libgp2x

    Hi all, One of my two little projects for the GP2x has reached an almost usable stage, so I thought I'd post about it here so I can hopefully get some comments/feedback about it. LibGP2x is a minimal library for getting low-level access to the GP2x's hardware, in the same vein as rlyeh's...
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    GP2X Button Presses

    Hi all, Which register stores the button presses (A,B,X,Z,Start,Select,Triggers)? I'm reading 0x1184 which I think should have them, but nothing changes. 0x1186 gives me the volume up and volume down buttons, and 0x1198 registers the joystick fine but I just can't find the rest of the buttons...
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    Making The Screen White

    Hi all, I've been banging my head against a break wall for the past day and I can't get the program below to work. It should just set the screen to white then quit. Problem is I see nothing when it run. The screen remains black. If someone could point out where I've gone wrong that would be...
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    GP2X Messages With Parameters In Minilib

    Hi, I'm using rlyeh's minimal library to control the second processor and I really need to be able to pass a single 'long' parameter with the messages that are sent between the two processors. Before I start hacking up the code has anyone else modified the library to do this? It would seem...
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    GP2X /dev/mem Size

    Hi, How much memory does the /dev/mem device give you access to? Is it just the bottom 32MB that is accessible to Linux, or can you use it to access the top 32MB as well? I wondering how to copy data so it can be used by the second processor. Is it as simple as mmap'ing /dev/mem, or do I need...
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