oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
Posts: 1,301
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Post by oompa loompa on Feb 7, 2011 17:04:47 GMT -5
It's strange, but I have always the same problem when I plug for first time the cable (I unplug it from both PC and console if I will not use it for a long time), and after running the test mode, both good syncs and bad syncs increases really fast (the bad syncs like 10 times faster than the good syncs), and it says that the console is running at 452 fps, or like. But after unplug and plug it again (only from console, and without turning it off), it starts to works perfectly. Yep, this is latch-up . Exact same thing happens to me
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oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
Posts: 1,301
|
Post by oompa loompa on Mar 2, 2011 13:34:41 GMT -5
Tom, how is your LAKABAJO ?
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Post by Tom Maneiro on Mar 2, 2011 22:22:00 GMT -5
Still buggy as a chinese cellphone I'm currently busy on some other things, but will be back soon to rework the damned thing to get it working or something... First i will try to find those CMOS parts... looks like i'm on a dead end with those TTL things over here.
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Post by socram8888 on Mar 4, 2011 12:43:22 GMT -5
My LAKABAJO is buggy as well. When entering the GG codes seems that the UP button is not working, but in test mode it works perfectly:
Tried on both Windows 7 x64 and Windows XP x32; MD1 VA 4 and MD2 VA 1.8, both PAL consoles. I'm using SN74LS157N and SN74LS74AN
Devster's LAKABAJO RAM Program Upload Utility v0.1.2 (May 4, 2010)
Test mode activated! Press ESC to exit out of test mode anytime
74LS157 Test - Press: Directional keys correspons to joypad direction pad Z key -> Joypad A X key -> Joypad B C key -> Joypad C Space key -> Joypad Start
74LS74 D-Flip Flop Test: Bootloader Progress: 0ync: 13309, Bad Sync: 2, Total Sync: 13311, FPS: 50.00 Caught CTRL+C ! Exiting Safely...
PS: Where's the debugging version? It's gone (404) There was a period (.) on the end of the URL ;D
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oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
Posts: 1,301
|
Post by oompa loompa on Mar 4, 2011 13:38:03 GMT -5
Unplug everything, and replug it back in (with both computer and genesis turned on). Make sure you're in test mode when doing this also
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Post by socram8888 on Mar 4, 2011 13:51:22 GMT -5
I already tried it many times. It's not a hardware problem: I'm getting BCDA on the latch and nearly-zero bad syncs (these 2 bad syncs ocurred when the Sega switched from GG to Sonic 1)
Also I always get the same codes written on the GG. Every other key works when entering GG codes but up
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Post by Tom Maneiro on Mar 4, 2011 13:56:04 GMT -5
Went today to ye olde electoparts store... unfortunately they had NO CMOS parts. Zero, nothing, nada, nyet... just those TTL ICs that don't work properly on my setup... Anyway, i bought more sockets, for a possible upcoming... *sigh* V4 board
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Post by socram8888 on Mar 4, 2011 14:06:44 GMT -5
LOL, my TTL parts works well, I got it working at the 2nd try :?
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oompa loompa
I AM THE GOVERNATOR
"Git 'Er Dun!"
Posts: 1,301
|
Post by oompa loompa on Mar 4, 2011 14:14:52 GMT -5
LOL, my TTL parts works well, I got it working at the 2nd try :? For you, because you had a PAL console, I had to modify the bootloader . I use TTL parts also.... I get the occasional "Latch-Up" problem, and it never works for me on the first try. After I unplug and retry everything, it works . There actually needs to be a dedicated microcontroller in between the Genesis and the PC for this to work properly . Yeah - I chose to put two IC's in this design so that it should cost less than $5 to build
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Post by socram8888 on Mar 4, 2011 14:24:37 GMT -5
Yes, I got it too. But mine is caused by the parallel port: when powering up the PC, all pins on the parallel port are high (5v), so it causes some problems even with Willems programmers
PD: I've bought finally a Willem, and also a Everdrive!!!
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Post by Tom Maneiro on Mar 4, 2011 22:14:34 GMT -5
What about a Linux version of LAKABAJO uploader? (or a source release, or whatever - just to rule out possible issues with Windows parport stuff, specially on laptops which may have whatever load of crap). If you're going for the microcontroller thing, pick an Arduino (everybody loves these ), or any ATMega thing - this would be a nice way to repurpose all those Teensy boards that were uselessly bought during the PS3 jailbreaking ages, before the ECDSA fiasco
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Post by socram8888 on Mar 5, 2011 7:41:28 GMT -5
That's a nice idea. Also ATMegas has hardware USB support, so you can make something to load through this instead of the parallel port
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