Close

It lives!! (Sort of)

A project log for NeoGeo pi3

A modified Neo-Geo Pocket with a raspberry pi 3 and other clever hacks as its guts.

kevin-osunaKevin Osuna 11/03/2016 at 12:250 Comments

Well, it is time for an update, I assume this will be a long one (since I've been away for a while) in which I will try to explain everything that's happened lately in relation to the NeoGeo Pi 3.

Let's get started! After desoldering the Ethernet, audio/comp video and USB ports I began gathering the ISO images I wanted to test the Raspberry Pi 3 with and had success booting them up to a certain extent, what do I mean by that? Well, only one if them completely booted up, I'm talking about OSMC, while the rest got stuck while mounting /boot or something I can't recall. I had a theory, the two images that didn't work were meant to be used specifically with the PiTFT and I certainly had not solder the display to the Rpi yet. So I figured that could have been the reason.

There was only one way to find out out so I had to get the time to solder the display in place, yesterday I finally had the time and patience for such hassle and it wasn't easy because in order to save space I ditched both, male and female headers and instead I got some really thin wires from a broken laptop's screen and had to cut them to the right size, tin them and finally make sure I was soldering them to the right spots. I'm talking about 40 tiny and fragile wires that could have been shorted out from the beginning, even before I knew about them (I have no voltmeter so I took a chance).

in the picture below, you can see some really dirty solder work, but believe me nothing bridges here, I made sure of that.

But at the end everything worked. At least I think so. I couldn't get the touch-screen to work since I have no usb keyboard to configure it, which brings me to another problem: I plugged an USB mouse to the only usb port I have installed and there was no response. The Rpi3 doesn't seem to detect anything and the mouse seems to bee receiving zero power from the PI which really worries me.

Did the USB controller chip die while I de-soldered the ports? I really hope it did not, because I doubt there's a way to fix that or a way around it. So tomorrow I will test the other ports with different wires to see what's up.

In case it doesn’t work, this project will have to wait until I can get a new Pi. like I mention in a previews log this things aren't cheap here in Mexico so I gotta find a way to buy it in the USA and get it shipped to me by a friend during holidays. I am so excited about this project more than ever now that I see that tiny screen shine as bright as it does! so wish luck if you are seeing this.

The next step will be to configure the touch-screen and obviously rotate the screen in the .config files (?) I don't know...I have time to figure that out {update: there is console helper (sudo adafruit-pitft-helper -t 28r ) besides there's a long tutorial on adafruit's website: Right here

If the USB ports don't make it, then, while I find a way to replace Rpi, I'll keep working on the rest of the project; the case mod and programming the teensy to work the way I want it to. Cheers! and thanks for following if you are!

Discussions