jordy13 Posted March 24, 2010 Author Report Share Posted March 24, 2010 Hi, So I've been messing around with the 'box this morning. It's still doing the same thing as far as the sound is concerned, but other then that it seems pretty stable. Here is the story on the sound. I have attached an mp3 file to illustrate :) When I load the test tone it comes out loud and clear high volume. (first sound on the mp3) The second series of sounds (and all the way to the end of the recording) are the clicks and tones. I discovered that I must hit the key just after the second click to get a note. If I just press them randomly nothing is heard. As you can tell in the recording, there is a pause after I press the key and the note. They are exactly spaced out. If the key is not hit at the right time there is no sound. Also I turned up the gain as far as it would go on my computer for the sounds after the test tone, but the test tone was recorded at a regular level. The key tones are very, very quiet. This being said, I have another SID in a working commodore that I could try. I kinda afraid to fry it though. The SID I'm using in the midibox now came from a non functioning, untested commodore, so there could be something wrong with it. Let me know your thoughts on the subject, and again thanks for your time. Best, Jordansidtest1.mp3 Quote Link to comment Share on other sites More sharing options...
jbartee Posted March 24, 2010 Report Share Posted March 24, 2010 (edited) I'm just out the door to go to class, but tentatively I'd say it sounds like your core is constantly rebooting. My MB makes that popping sound immediately when I first turn it on. This would explain the delay also... every time the core resets, the SID modules and midi i/o must be reinitialized, during which time they will be inaccessible. You could confirm this by hooking your lcd back up (try without the backlight first) and see if you are getting the mios boot screen over and over again. Not 100% sure about this one, but start by checking behavior with the LCD. I wouldn't stick your other SID chip in just yet until we can figure out what's going on. Edited March 24, 2010 by jbartee Quote Link to comment Share on other sites More sharing options...
jordy13 Posted March 24, 2010 Author Report Share Posted March 24, 2010 I'm on it. I'll post the results. Thanks, Jordan Quote Link to comment Share on other sites More sharing options...
jordy13 Posted March 24, 2010 Author Report Share Posted March 24, 2010 Major success!!! :frantics: After I plugged in the lcd and reboot the pic the thing came alive. I'm not sure why, but the lcd seems to make a difference (I'm afraid to disconnect it now). Wow, sounds great! How do you change the patches with no controller? I'm so afraid to touch anything now... Joy. Thanks, Jordan Quote Link to comment Share on other sites More sharing options...
jbartee Posted March 24, 2010 Report Share Posted March 24, 2010 Great news! I don't want to rain on the parade, but I'm still a little concerned because we don't know why attaching the LCD has spontaneously fixed the problem. If it works it works, I guess, but it would still be good to figure out what's going on. I wonder, when you removed the LCD originally, did you also remove the 1k pull up resistor on pin d3 of core j15 (shown here: http://ucapps.de/mbhp/mbhp_lcd_4bit_mios8.pdf ). Not having that resistor stuffed has been known to cause BOR style reset patterns similar to what (I think) was going on with your core. Anyway, the patch can be changed by sending a midi program change message. Most keyboard style midi controllers have this hard wired to generic + and - buttons. If you want to change a bank, send CC#0. Glad you got it working! Quote Link to comment Share on other sites More sharing options...
jordy13 Posted March 24, 2010 Author Report Share Posted March 24, 2010 Great news! I don't want to rain on the parade, but I'm still a little concerned because we don't know why attaching the LCD has spontaneously fixed the problem. If it works it works, I guess, but it would still be good to figure out what's going on. I wonder, when you removed the LCD originally, did you also remove the 1k pull up resistor on pin d3 of core j15 (shown here: http://ucapps.de/mbhp/mbhp_lcd_4bit_mios8.pdf ). Not having that resistor stuffed has been known to cause BOR style reset patterns similar to what (I think) was going on with your core. Anyway, the patch can be changed by sending a midi program change message. Most keyboard style midi controllers have this hard wired to generic + and - buttons. If you want to change a bank, send CC#0. Glad you got it working! It was really thanks to you. I'll keep trying to figure out what is going on, but if I remove the lcd it stops functionin. So it has something to do with that... The other thing I did (not sure if it made any difference was I used the 9v setting on the walwart for the core. Maybe my regulator is messed up and 9v - the lcd is giving me the right voltage for the core? Just a guess. I'll look into the resistor issue as well. I'll keep you posted. Best, Jordan P.S. Got an M-Audio KeyRig 25 hooked up to it now. :) :) Quote Link to comment Share on other sites More sharing options...
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