moebius

Hi, ya ---- msg1 a. I think midimerger is passive and dead silent 'till it has data processed to output. b. Probably nothing useful c. Correct (at least so it seems t me) In midi troubleshooting page: http://www.ucapps.de/howto_debug_midi_pic16f.html there are some test applications. msg2 2. So, this is midi test - post optocoupler?! Flickering suggests that input circuit is functional.. 3. Nope Bye, Moebius p.s. Hmm.. Just wondering if you have overclocked 18f452 to 80MHz ;)

Hi, I guess you haven't changed SysEx structure in mb64_midi.inc (This is MB64, right?) to XG one? This is done in META_Send_AN1x_SysEx part of the mb64_midi.inc... Or am I suggesting silly things again? Moebius

Err.. Have you converted your compiled application (*.HEX) to .syx file to upload to the box? And uploaded your modified version.. Bye, Moebius

Hi, Nothing else changes, but data bytes are split to two nibbles which are then transferred in two cycles. Err.. should be possible, but I haven't examined MIOS that much yet. I made precompiled versions - only changed to use 4bit mode. Bye, Moebius p.s. I don't know that much about LCD problems - but are you sure you have connection right..

Hi, and thank you both! I really apperciate your extensive "answer" Seppoman. Your anger came for a reason - only the aggression from being drunk ;) This started as I saw these two topics - and after all the thoughts I just felt incompetend to post any resonable reply. This can be seen merely as letting out some steam. (But I still would like it being sticky ;)) I don't see need for uCapps to be a complete electronics resource - there are other sites for that and Google, that's how I ended up here in the first place. Too much documentation can create new problems - People who anyway prefer the easy way, probably take documentation too literally - "My wires ain't color coded - is that why it doesn't work?" As Seppoman suggested, doing some electronic kits are really good practice to beginners. I'm not yet to heard about the baby that was born with the soldering iron in hand. One of the things I must say, is that I AM more than pleased with http://www.ucapps.de - I do a lot of posting to forum and yes: I don't KNOW those things ;D - but I can really fast dig up the answers. Only very few things are "missing" - ie. needs to be read from the sources ;) This also makes me wonder - How much better would newbies be prepared If they just daily browsed the http://www.ucapps.de and read the forum, say for a month? Still, Have FUN! Moebius

Err.. Genelecs! (maybe the new 80xx series?) I don't have a pair (or any decent speakers ;)), but have listened various models. [religious war] Yes - The effect is called being neutral. It's easier to get "that sparkle" - when monitoring system and target systems need to be compensated in the same way ;) And strangely price is up to compete with Genelec 1030A's.. I didn't realise amps were that expensive - or is it the EQ? ;) Of course not! Like rest of the world maybe? Have you have listened to radio today? For the reason.[/religious war] Bye, Moebius

Ok... Hmm.. any little coding examples comin'? Like modest 8x8 midi interface? ;D Bye, Moebius

The first of all, DO NOT READ any documentation. It helps, if you don't understand written english language. Be overwhelmed by the size of a MB, complexity of the MB and different steps needed to complete a Midibox project - don't analyse it or break it in the smaller tasks. Start complaining before you even have seen the first problem or taken soldering iron to your hand. OR Being all excited about the possibilities MB provides, boldly announce a new project around MB, that will never be finished. /edit Just for the reference, You can search for the vx And here´s the list of excuses You can use: http://www.midibox.org/forum/index.php?topic=8378.msg58309#msg58309 Not that this forum member had written more to this forum, than the application needs code, and "hehe", "haha" and "cool" could be variables! /edit As this is a technical project any use of your own imagination is considered harmful - This is especially important when it comes to casing the project - or any step, where decision is yours. If you have problems, suggestions, anything - Please, DO post it to the forum, on multiple places, under many topics - more the better. If you're not replied right away - send a follow up, this time using rude language - These guys at the forum are just to help YOU - afterall. In midibox forum we like it simple - If you have a problem, DON'T waste our time by describing the problem, your setup, or anything - Just "My MB doesn't work" is enough and we'll know right away, what's the problem. Of course, We know everything about everything midibox and MORE, guides "How to learn Soldering without practice", "10 steps to Eagle CAD", "The Meaning of Life" ect. are just hidden somewhere under scattered MB information. Just ask for it - and in the rare case it doesn't exists - demand that it should be written. (not by you, of course) Do NOT use forum "search" function - Somebody might have asked the same thing before (and before.. .nd ..fore ..d ..re..), but those extensive answers MUST be outdated by now.. Don't learn anything from what your doing, or others have done. By following these, just too difficult steps, you'll maintain your precious n00b status forever! HAve fun ;) version 0.3 - unsupported beta

Do the right thing: Grab Captain Hastings aout_AD5204.inc, modified AOUT driver for AD5204 chip - Yes, same protocol ect. Should work out of the box. Then edit chip name references to point to AD8400, change the name of the driver, and the name of the writer.. Â ::) Seems like that driver file is taken offline.. (well, I have it) You can always ask Captain Hastings for help ect. ;) Bye, Moebius p.s. There were some ear catchin' moments in that filter demo mp3.. Very nice effects from fast switching of sounds, actually reminded me about Korg Wavestation..

Thought it again and actually 25 turns is a good idea :D Those trimmers set scaling of the CV out.. and you should have to adjust those rarely... (Or once when you power up an analog synth and twice during a session.. just kiddin' ;) - hopefully) Bye, Moebius Maybe nothing? But you see, those 15 dollar ones are spec'd to MIL standards, have gone thru some extensive testing ect.. Where in the hell did you think mil. budget goes? ..those electronic industry guys just ain't close enough friends of BEEP, so they don't get payed for nothing... ;D ..no offence..

Hey.. I looked for it-- and there are plenty of choices, but no murata there?!? ;) Â SO, these seemed most suitable: Mouser part # 72-T63YB-500 Mouser part # 652-3266W-1-501 The one is 12 turn and the other is 15 turn.. I guess both give you enough resolution and are less likely to cause Carpal Tunnel syndrome, than 25 turn ones ;) Bye, Moebius

Hi, Err.. actually USER_Init is located in sid_init.inc in sid application. My fault.. :-/ But still, this shouldn't be too complicated to understand: Search for text USER_Init, in sid_init.inc and add: ;; Initialize 4bit LCD mode movlw 0x37 | 0x80 ; E1: D.7, 4bit interface movwf MIOS_PARAMETER1 movlw 0x24 | 0x80 ; E2: C.4, 4bit interface movwf MIOS_PARAMETER2 movlw 0x00 ; LCD type 0 call MIOS_LCD_TypeSet Directly under that line.. Don't replace or delete anything, just add. This can be done with your favourite text editor.. err, like Notepad ;) (Or in MPLAB IDE, but don't ask about it, as I don't have it) There are compiling instructions in HOWTOs section at http://www.ucapps.de.. Just pick that verision of a sid app (*.asm) that you'll be using. Also conversion to .syx is pretty straight forward.. like clicking convert.bat, and then choosing right .syx to upload. If these instructions aren't enough - Do you prefer pre-compiled version? Bye, Moebius

Hi, Reading from Murata datasheet, it says "industrial standard" ;) So, searching for "multiturn & cermet" should yield results.. (at least Bourns makes them also.) Just watch for the component footprint and being "top adjustable" Bye, Moebius p.s. Murata model number is PV37W series, and exact part is PV37W501C1B00..

Hi, Midimerger is 16F877 based - no 18F version (yet?). It can be build in core board (remember 20MHz xtal and 16F877) or using so called veroboard (there's so much extra on Core versus midimerger). There's no board layout for second midi input as it's very simple to build in veroboard. Bye, Moebius

Hi, Modification is done to the main.asm of the application - MIOS already supports 4bit lcd interface. Pick one: http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=troubleshooting;action=display;num=1097827380 http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=parts_q;action=display;num=1074447664 for reference, how to do this. Bye, Moebius

Hey man, the link is about in the middle of the page, very hard to miss ;) But anyway:https://sourceforge.net/donate/index.php?group_id=95206 And these kids not only clone "Moog filters", they also rip off recent DIY designs.. AVOID! (Just have to use my every opportunity to bash them ;)) Bye, Moebius

Hi, Check if http://www.okw.co.uk/ has one for you ;) Bye, Moebius

Sorry.. I didn't understand.. Well, "power" seem ok.. and I don't know what to expect from other voltages, other than measuring osc or data/address lines, doesn't make any sense ;) (Did you check that in interconn. test lines also were in default state, when not selected.. of course you did) It's very unlikely that all your sids are broken.. Do you use onboard oscillator on SID? If that is the case, you could try clock supplied from core. Also it's worth trying to change BC547 on sid output. Bye, Moebius

Yes, looks like it needs a negative (Contrast)/LCD drive voltage.. Bye, Moebius

Yeah, yeah.. should work ok.

With exactly same content - It's still considered as cross posting, and cross posting is still considered harmful as it clutters the forum.. Oh well. Using a chip you can't get datasheet for? You'd have to trace circuit from Roland service manuals.. Bye, Moebius p.s. Check these topics: http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=concepts;action=display;num=1096464315 http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=misc;action=display;num=1061900574

NO crossposting, please! You could build a Filter module out of those and control it using AOUT.. But these are old chips made for Roland products: bloody expensive, limited supply.. It's just better to leave those as spares for old gear. Bye, Moebius

http://www.midibox.org/cgi-bin/yabb/YaBB.cgi?board=concepts;action=display;num=1100182336

Hi, You can find pin list (these don't refer to sid pins, but pin names) from main.asm of the sid interconnect test and then use sid schematics for cross reference. Bye, Moebius

Hi, Isn't this done with META events? Original mb64_meta.inc has META events to control Yamaha AN1x and here's the link to nickcas modified mb64_meta.inc for Roland MKS-80. http://processr245.com/hardware/midibox/mb64_meta.inc I hope that you figure out easily how it's done and write a "howto" ;) Bye, Moebius