thetimboroni

Stryd - nothing happens when I switch the ABC lines. However, after rewiring the whole thing I now have A0, A3, A5, and A6 working. If you recall, earlier I had A1, A2, A5, and A6 working.... so while the same number of pots work... this indeed progress in that I have something new responding!

haha yea i know... but like i said i just wanna test one out.

Hey, I have reached the point of desperation. Some of you have been reading and responding to my thread called "weird pot situation." Well I have tried countless things to get my box to work, and now i'm desperate. I'm desperate because I have to present this for a grade on Thursday. While some of the pots work (a very few "some"), I would love for all of it to work. The only thing I have not tried w/ this box is a new PIC. I'm thinking somehow it got damaged along the way and has something to do w/ my situation. Now here's where hopefully someone can help me - I need a pre-burned PIC asap so I can test it. This requires a very nice person to overnight one to me. I am fully prepared to pay all costs of shipping and whatever the chip cost you. This might seem outrageous and I'm somewhat expecting most of you to laugh at me... but like I said... I'm desperate. Having said that - can anyone help me? Thanks. tim.

well i've tried all the pots now... still can't get anything but A5 and A6 to work. this really doesn't make any sense. it's boggling my mind.

http://despair.com/problems.html haha. at least my troubles are helping someone right?

let the tedious project begin!

"Test" what? for what? As of now I'm still only able to use A5 and A6 but all 8 of them work (as in...all the A5's and all the A6's work fine... but nothing else)

hello again. i know it's been a couple weeks but i've been out of town and working at the Master's Tournament. I finally got a chance to try out Smash's "touch test" today and here's the results: ....all 8 function as they should. Meaning - grounded = no random events. open = random events ("jitters" as Smash says) edit: i also checked the ground from the gameport to the core. Change in voltage is .001 so that doesn't seem to be the problem either.

:-\ not too glad to hear that. bummer.

So after soldering and resoldering time and time again, I got to the point where I was actually worse off than I started. I was just getting random MIDI events. Finally today I got something to respond again. Oddly enough, though, now I'm just getting response from A5 and A6. Having said that here's another piece of info that might help troubleshoot: When I turn the pots on A5 and A6, the "midi channel" box in Serge's MIDIbox program constantly changes until I stop moving the pot. There is no pattern to what "channel" it starts and ends on either. Ex. - It will intially be on MIDI channel 10. While I turn it random numbers appear in the box. When I stop turning it, it lands on 16. Then when I turn it back, it lands on 14. Turn it again, it lands on 12... Having said that, what exactly does "MIDI channel" have to do w/ it? Thanks, tim. (And yea, as soon as I have a chance I'll do your test Smash!) ;)

alright, I'm confused there. If I disconnect COREJ5 I'm just gonna get random MIDI events, so how and I supposed to do this test?

MRE, Thanks a bunch for puttin' so much effort into this. It's alot for me to take in, still being new to this, but I will look over your posts several times and keep checking stuff. Thanks. tim.

Yes. The positive terminal is connected to the trace. SB Live MIDI UART gameport. It used to. Only for short period of time though until I found the problem to be a short on J8. I'll run the other test you suggested as soon as I get a chance. Thanks for putting in your effort though w/ that chart! tim.

Yes, all the multiplexers are connected correctly on J6 of both the core and the two AIN modules. This was actually the first thing I had to fix b/c it was causing tons of random midi events. beh... I guess I'll just keep looking at this thing. I can't lose hope. This will be conquered! (any other advice?) tim.

what post? I assume you meant A0 <-> A1. I did that before and like I said, the pot that responds then doesn't respond, and vice versa for the other pot. In other words, A0 never responds, and A1 always responds no matter what pot is attached to it. So what does that mean? I have 63 pots on 2 boards. thanks again for the help. i'm still really confused about this. i'm praying that one day i'll wiggle something and it will work. haha in my dreams maybe. tim.