dubka Posted August 8, 2007 Report Share Posted August 8, 2007 Okay, in isolation everything is working. And everything works as long as the core and sid are only connected by vs and vd. The pins don't match on the 2 boards so I don't know what to put where as it doesn't work 1:1.Any ideas? I'm on the home stretch!!!! :-)Cheers,Martin Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 8, 2007 Report Share Posted August 8, 2007 Hi,have a look at Smash´s homepage for the pinning. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 8, 2007 Author Report Share Posted August 8, 2007 yeah, that's already printed on the pcb but still doesn't match Mike's core...What's CLK? What am I meant to connect that to? And why doesn't Smash's SID have an MD pin? Quote Link to comment Share on other sites More sharing options...
NorthernLightX Posted August 8, 2007 Report Share Posted August 8, 2007 yeah, that's already printed on the pcb but still doesn't match Mike's core...What's CLK? What am I meant to connect that to? And why doesn't Smash's SID have an MD pin?CLK is Clock, it is a connection to the clock pin of the PIC. It is not located in J10 of the core. Please see the SID (maybe the old SID_V2 board info) board interconnection info on uCapps.Don't know about MD. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 8, 2007 Author Report Share Posted August 8, 2007 Could CLK connect to PWM (which in turn is connected to pin 17 of core IC1)? Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 8, 2007 Report Share Posted August 8, 2007 If I see it right, you have to connect the clock to the PWM. PWM stands for puls wide modulation, with the pwm output from the core you clock the sid chip. On the old sid bord was an crystal which did that, but there were some problems. So TK clocked it with the core to fix this hardware bug. Read about the old schematic like NorthernLightX writes, so you´ll understand it better.GreetingsMarkus Quote Link to comment Share on other sites More sharing options...
dubka Posted August 8, 2007 Author Report Share Posted August 8, 2007 Okay, currently I have MD (of mike's core) connected to the "blank" pin on Smash's SID.All I get is black squares on the top line of my lcd... Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 8, 2007 Report Share Posted August 8, 2007 You should connect MD from core to SC of sid board. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 8, 2007 Author Report Share Posted August 8, 2007 done that... still nothing Quote Link to comment Share on other sites More sharing options...
dubka Posted August 8, 2007 Author Report Share Posted August 8, 2007 by process of elimination I have discovered the "problem" connections to be:MD - SCMU - MUIf I disconnect either of these two, the lcd displays the usual bootup copyright, etc...If either is connected I just get black bars...Any ideas what the problem might be? Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 8, 2007 Report Share Posted August 8, 2007 Have you connected all pins like that?Core: Sid: Rc Rc Vd Vc Vs Vs Md Sc PWM Clk So So Mu Mu Quote Link to comment Share on other sites More sharing options...
dubka Posted August 9, 2007 Author Report Share Posted August 9, 2007 yes Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 9, 2007 Report Share Posted August 9, 2007 So please post a photo of your sid modul, sounds like an soldering problem.But I will check the pinning tomorrow again, that we 100% know that its right. ???GreetingsMarkus Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 9, 2007 Report Share Posted August 9, 2007 Have you added the 2 isolated cables on the bottomside of the pic module? Without the one between J10 PWM and core the sid will not be clocked! Quote Link to comment Share on other sites More sharing options...
dubka Posted August 9, 2007 Author Report Share Posted August 9, 2007 Yes. And the lcd still works with PWM connected to CLK.The problem appears to be with:MD - SCMU - MUAlso, with one of those connections the black bar started as 1 and a half black lines, then went back to just one after a second or so...? Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 9, 2007 Report Share Posted August 9, 2007 That makes sense, because MD and MU are also connected to the J15 port which goes to the lcd. So you should check the sid board, especially IC2 and IC3. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 9, 2007 Author Report Share Posted August 9, 2007 Cheers mate.Will do. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 9, 2007 Author Report Share Posted August 9, 2007 Okay, I have it working now.BUT I have another problem...There's seems to be an issue with my bourns encoder (only 1 - step A cs).It's doesn't quite want to scroll properly. Sometimes it jumps a few numbers, sometimes it goes back a couple, sometimes it stays on the same one, sometimes the sound cuts out and a "noise" is introduced.Any ideas? I have an aluminium panel - heard some people had bother with that. Maybe it's to do with the "detent" setting in the .asm?Cheers,Martin Quote Link to comment Share on other sites More sharing options...
midiboxxer Posted August 9, 2007 Report Share Posted August 9, 2007 Hello,where was the problem with the sid and lcd?The problem with the encoder could be a wrong pinning or the wrong detented mode.I think I saw this in mios_tables.inc ? There you should set the detent or non detent mode. But I have no experience with that.See also http://www.midibox.org/dokuwiki/doku.php?id=encoder_specificationsfor encoder details.GreetingsMarkus Quote Link to comment Share on other sites More sharing options...
TK. Posted August 9, 2007 Report Share Posted August 9, 2007 If you are using the Bourns PEC11 encoders from SmashTV (same for voti encoders), you don't need to change the encoder settings in setup_*.asm - they are already configured for the DETENTED2 type. But check the pinning - there are three possibilities, two lead to a wrong behaviour (yes, one error effect is, that values are decremented and/or jumping). So, if the pinout description in the wiki doesn't help, just try the three possibiities until it works :)Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 9, 2007 Author Report Share Posted August 9, 2007 Cheers TK.Congratulations on the magnificent MBSID by the way.Really didn't expect it to be quite this good and have such a versatile sound.Can't stop playing it!:-) Quote Link to comment Share on other sites More sharing options...
NorthernLightX Posted August 9, 2007 Report Share Posted August 9, 2007 I have to comment on the bourns encoders that I don't like them very much. I'm quite sure I wired them correctly, but the handling is very unprecise. Many times doing one "click" has no effect, but doing 2 "clicks" jumps 2 values. Quote Link to comment Share on other sites More sharing options...
TK. Posted August 9, 2007 Report Share Posted August 9, 2007 Thank you! :)I must say, that I'm glad that you made such a good progress with building the hardware. To be honest: after your first postings I assumed that you will give up frustrated very early, since the whole synth DIY topic is so new to you. But now - two months later - your box is almost running, and you are helping newbies as well (on your way!) - thats really great! :)Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
TK. Posted August 9, 2007 Report Share Posted August 9, 2007 I have to comment on the bourns encoders that I don't like them very much. I'm quite sure I wired them correctly, but the handling is very unprecise. Many times doing one "click" has no effect, but doing 2 "clicks" jumps 2 values.this remembers me, that I wanted to check the bourns encoders by myself (SmashTV sent me some parts time ago, but I haven't found the time to build a test board yet) - maybe there is a way to optimized the driver for these encoders (-> DETENTED3)Best Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
dubka Posted August 9, 2007 Author Report Share Posted August 9, 2007 Cheers TK. :-)It's been a steep learning curve and nowhere near as cheap as I'd hoped but well worth it in the end.I must say, this bourns encoder feels awful and yes, it is especially unprecise.It's connected properly as the other way I tried reversed the inc/dec so...Anyone recommend another? I tried looking on the Voti catalogue but couldn't see any.The sound cutting out is still baffling me though.It seems that if I land on the patch correctly wih the encoder it will play fine. If not, I have to move and re-select it. Obviously editing patches is out of the question... Quote Link to comment Share on other sites More sharing options...
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