analogue900 Posted August 1, 2008 Report Share Posted August 1, 2008 Hi all,I'm in the middle of building my mbseq v3 and I was wondering if it's possible to drive the core using the built-in midi ports during development?If I'm reading this correctly the eusart bug shouldn't be a problem anymore on the newest pics, right?Reason I'd like to drive it like this is I'm waiting for some parts for the midi-iic module.So far, I've hooked it up and I do see the sysex request from the core (that's the upload request for MIOS, right?). But when I try to upload a hex file I don't get any response from the core.... Best,Dino Quote Link to comment Share on other sites More sharing options...
stryd_one Posted August 1, 2008 Report Share Posted August 1, 2008 I'm guessing you already saw the wiki page, did the tests confirm that you have a bug-free 4620? If it's not bufg-free, you'll need a new one or IIC_MIDIIf it is, then you need to do the midi troubleshooting guide :(Good luck! Quote Link to comment Share on other sites More sharing options...
Tanstaafl Posted August 1, 2008 Report Share Posted August 1, 2008 I had the same problem when I first attempted an upload to a NEW Core from SmashTV. System went haywire, would reboot and only display black boxes on the top line of the display.Turned out it was my procedure. I was using Midi-Ox, silly me. As soon as I tried MIOS Quote Link to comment Share on other sites More sharing options...
Tanstaafl Posted August 1, 2008 Report Share Posted August 1, 2008 dag nabbit ! hit the wrong key.when I went to MIOS Studio.... it uploaded the SeqV3 code and worked perfectly.good luck Quote Link to comment Share on other sites More sharing options...
analogue900 Posted August 1, 2008 Author Report Share Posted August 1, 2008 dag nabbit ! hit the wrong key.when I went to MIOS Studio.... it uploaded the SeqV3 code and worked perfectly.good luckThanks! Were you using the midi ports on the core module ? I think I read somewhere in the docu that the system automatically detects which ports are hooked up.I also see the black boxes on the top row of the right display. In the meantime, I've hooked up the left display and it shows some text during startup - although some characters are missing. It says something like MIOS 1.9 and then READY (with the R missing).... not sure if this is due to a loose connection in the display wires or what not...Anyway, the thing still isn't responding to any midi signals.Also, Styrd, thanks for pointing me to the wiki! I hadn't seen this. But I'm using a PIC bought from smashtv a couple weeks ago, so according to TK's notes I should be eusart-bug-free.If anybody has some troubleshooting tips, that would be much appreciated!Best,Dino Quote Link to comment Share on other sites More sharing options...
Tanstaafl Posted August 1, 2008 Report Share Posted August 1, 2008 yes, the midi ports on the Core.took me a few minutes to get MiosStudio configured correctly, but after that, everything was hunky-dorey Quote Link to comment Share on other sites More sharing options...
stryd_one Posted August 1, 2008 Report Share Posted August 1, 2008 It says something like MIOS 1.9 and then READY (with the R missing).... not sure if this is due to a loose connection in the display wires or what not...That's not great... Could be worth looking in to.Also, Styrd, thanks for pointing me to the wiki! I hadn't seen this. It's a big blue button at the top of every page :D Have you seen ucapps.de? That's where you'll find the midi troubleshooting guide, and I think it might be where you will stop next :) If you're not sure, click the link in my signature that says "Fix Bugs" and scroll down until you get to midi troubleshooting. But I'm using a PIC bought from smashtv a couple weeks ago, so according to TK's notes I should be eusart-bug-free.Indeed you should. In that case you should be able to upload using the ports on-board. Quote Link to comment Share on other sites More sharing options...
analogue900 Posted August 2, 2008 Author Report Share Posted August 2, 2008 That's not great... Could be worth looking in to.You're so helpful, it's heart-warming. ;) turns out it was 2 wires mixed up.It's a big blue button at the top of every page :D Have you seen ucapps.de?Actually, now that you mention it... I seem to remember looking at that page... ;D That's where you'll find the midi troubleshooting guide, and I think it might be where you will stop next :)Yep, done that. It was a flaky socket. Should have soldered that optocoupler directly to the board. I hate it when Paul Schreiber is right (he's the guy making MOTM...)... he's got a very strong opinion on certain topics - IC sockets is one of them.Anyway, I got it to work. Got mbseq v3 uploaded and the 2 displays show the content as shown on TKs website. (http://www.ucapps.de/midibox_seq_manual.html) - there it is... I knew, I'd seen that website before. ;D Time to test some encoders and pushbuttons.Thanks for all the help (and the fun)!Best,Dino Quote Link to comment Share on other sites More sharing options...
stryd_one Posted August 2, 2008 Report Share Posted August 2, 2008 [me=stryd_one]does the "it's working" dance[/me] It was a flaky socket. Should have soldered that optocoupler directly to the board.I hate it when Paul Schreiber is right (he's the guy making MOTM...)... he's got a very strong opinion on certain topics - IC sockets is one of them.Well he's right and wrong (said stryd, not actually knowing what he said but taking a guess). Yes, they make room for trouble (obviously you've heard his take on that!), but in the world of DIY and many newbies, they're almost a must. In fact in the case of the opto, I would say that is the most-needed socket after the PIC's. Why ? Because optos are shit, they break if you sneeze on them, and soldering direct to the board means you heat it up a bit. Could be a bad idea, especially for newbie solderers that might dwell on the pin too long. Better to just check the connections with your multimeter :) Quote Link to comment Share on other sites More sharing options...
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