bacteria
Modder & Portablizer
Once I have finished my N64/GBA project, I thought this would be a good project:
I have a GP2x, nice little system, especially for emulation, however the screen is small, buttons not in good places, and bad control system (you can easily replace the joystick with a D-pad, not difficult, but that doesn't solve the other issues with the system).
TV output from the GP2x is bad, it gives 320x240 output via RGB to its own LCD, but outputs in a different resolution, something like 320x228 or whatever, so lines are missed and it looks a bit wierd: also tv out quality is bad. You can output via S-video, but there isn't a lot of point as the system skips lines on the output. Also, as if this isn't bad enough, the colours are washed out (at least with PAL, NTSC isn't so bad apparently).
Here is the question: how would I be able to trace the lines from the chip or traces to find out which points to solder wires to for the RGB, C-sync and ground? If the answer is "with a multimeter", what readings so I look for, and what do I get my multimeter to look for please?
My thoughts are that if I can get this RGB, then one of two things will happen: either the PSone screen will take the 320x240 and make it fullscreen (640x480), as it tends to do, or just show a quarter sized screen (320x240), I won't know until I try it. If it is fullscreen, proper RGB, this system will be worth making a proper case project for!!
Any ideas guys? - I know there has to be a way to do this investigation, after all, it will be the same type of probing I would have thought as other people have used when locating the RGB connections on other games systems.
I have a GP2x, nice little system, especially for emulation, however the screen is small, buttons not in good places, and bad control system (you can easily replace the joystick with a D-pad, not difficult, but that doesn't solve the other issues with the system).
TV output from the GP2x is bad, it gives 320x240 output via RGB to its own LCD, but outputs in a different resolution, something like 320x228 or whatever, so lines are missed and it looks a bit wierd: also tv out quality is bad. You can output via S-video, but there isn't a lot of point as the system skips lines on the output. Also, as if this isn't bad enough, the colours are washed out (at least with PAL, NTSC isn't so bad apparently).
Here is the question: how would I be able to trace the lines from the chip or traces to find out which points to solder wires to for the RGB, C-sync and ground? If the answer is "with a multimeter", what readings so I look for, and what do I get my multimeter to look for please?
My thoughts are that if I can get this RGB, then one of two things will happen: either the PSone screen will take the 320x240 and make it fullscreen (640x480), as it tends to do, or just show a quarter sized screen (320x240), I won't know until I try it. If it is fullscreen, proper RGB, this system will be worth making a proper case project for!!
Any ideas guys? - I know there has to be a way to do this investigation, after all, it will be the same type of probing I would have thought as other people have used when locating the RGB connections on other games systems.