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A bit of a long shot, but if anybody has a dead GP2X they'd like to get rid of and have used for a good cause I'd be happy to take it off your hands. I'm particularly after an F100, but F200 would also be interesting so I can compare them. I'd like to attempt removing the MMSP2 from the PCB...

I've never heard of anybody doing it, I'm not sure anybody has ever been desperate for an RTC before. I2C is definitely exposed though, the serial number and LCD settings are stored on an I2C EERPOM - you could probably daisy chain something off that (might need a buffer)...

If you're going to such lengths, you could always try to see if VDDRTC/VSSRTC/XTIRTC/XTORTC on the MMSP2 are exposed anywhere on the board and splice a coin cell/crystal in... Chapter 6 of the MMSP2 databook details the relevant registers.

It's a shame if that shop won't stock them anymore. There are plenty of cables on ebay for e.g. Samsung E720, but they rarely have all the pins. It may be possible to rearrange those they do have? I've never opened one and tried. http://wiki.gp2x.org/articles/e/x/t/EXT_Port_Connectors.html...

It's SOT-23-6, which is much easier, but it's still very small!

I think the voltage regular is quite easily damaged, I can't really remember what the symptoms would be but the rainbow pattern is typical for most GP2X problems (hardware and software annoyingly). I've a feeling that quite a few people who had a bad one were still able to run it with the...

Wiki dump: https://archive.org/details/wiki.gp2x.org GP2X software: https://archive.org/details/gp2x_full_17022023 GP32 software: https://archive.org/details/gp32_full The software archives started out as dumps of the Archives and include metadata. I've done a bit of curation as the archives...

I have a small collection of technical documents on gp2x.dev, the GP2X wiki is still available read-only at wiki.gp2x.org and ED's file archives still exist. I have my own mirror of the wiki, and a collection of software which is slightly more complete than the archives but I haven't made it...

A minor update, Orcus (the bare-metal GP2X library) 1.3.0 has just been released. New features in this release: SD card writing A change to the nanosleep syscall to work with devkitARM 57 As before, install the gp2x-dev group from the devkitPro pacman repo...

This is the config I use: https://gp2x.dev/devboard/files/openocd/gp2x-openocd.cfg You'll need to replace the line "source [find interface/ftdi/olimex-jtag-tiny.cfg]" with whatever is needed for a Wiggler interface. This will give you some very brief instructions on using JTAG for something...

The board does several things which are independent from each other. If you want to test the serial port, set up minicom or similar for 115200 8N1, you should be able to see the bootloader and Linux firmware logging (after booting, you can CTRL+C the menu and get a command line you can type...

Theoretically not if the value is less than £39 and it is marked as a "gift", however it isn't entirely unheard of for customs to just randomly invent values for packages they decide to open and then charge tax. There is also the possibility of being charged a customs clearance fee by the...

I don't think there is a command which can test a parallel port is working without having some hardware at the other end to test it with. I really think your best bet would be to get a more up-to-date USB-JTAG setup. They used to cost a lot back in the 2000s which is why people used the...

How good are you at soldering? The board I designed is quite easy to put together and I think I have a spare PCB and probably an EXT connector you could have and you should be able to source the rest of the parts very easily. The connectors are a bit fiddly due to the small pins in close...

I doubt the nand blanker is going to help you, it is for repairing a very specific problem. You appear to have no bootloader at all if you get nothing on the screen. Do you definitely have a working JTAG setup? If so, you could try following DJWillis' old unbricking guide which should still...

The battery LED is controlled in software, but off the top of my head I think the power LED should come on whether or not it is bricked, so I'd guess it is likely a hardware problem of some kind (maybe not a particularly hard to fix one). If you wanted to try to build a JTAG setup, I have some...

Just been sorting out stuff I have in the loft and found this monstrosity I got on eBay years ago for next to nothing. Anybody want to confess and explain what went through their mind when they decided to do this?

I seem to have accumulated quite a few over the years - must have over 20 GP/GPH machines dotted around my house! Almost 15 years since my first GP2X release. In answer to your question, clearly the GP2X is the one to use - I'm still waiting for somebody else to use the bare metal dev environment!

A new version of Orcus, the bare metal hardware library for F100 and F200 has just been released and is now available in the devkitPro pacman repo. New features in this release: 2D accelerator Palette modes on RGB layers Functions to use of MMU/PU/caches on both the ARM920 and ARM940 for added...

Yes! https://www.pyra-handheld.com/boards/threads/orcus-1-1-0.99123/ https://www.pyra-handheld.com/boards/threads/open2x-bootloader-1-0-unfinished-business.99117/ I've a feeling we and alxm may be the only three people at the moment though...