offe

I would like 2 chips, shipped to Sweden. /offe

Thanks, smash! I think your explanation is quite close to what's happening, at least this was the case with the first transformer. The second one, however, was not even connected to the opl3 board when it blew. That was really not what I had expected. I'm going to get a couple of new transformers and go with your suggestion to fuse all lines to try to isolate the problem. I'd really like to use this board but if the next batch of transformers goes up in smoke, I'll take it as a sign to power the mbfm the wallwart way. :) /offe

Hi, I'm building the Midibox FM and have had some problems getting the +-12v psu to work properly. I've built the psu using this http://www.midibox.org/users/talion/symetric_psu_12V.zip board mentioned on the OPL3 module page. Everything seems fine, but when I connected a 2x12v transformer to the circuit, it ended up with "releasing the magic blue smoke" and the primary side of the transfomer seems to overload (the primary side coil seems to be burned). This is the second transformer (have already rebuilt the circuit once) that behaves like this. Oh, and by the way, I did put a 1A fuse on the primary side the second time to prevent this from happening. Am I doing somthing seriously wrong here? The circuit seems to work fine for a minute or two (though it produces a low humming sound) before the transfomer dies. Anyone got a suggestion? /offe

This morning I got a visit from the mail company... These new boards are great! I've been building and testing the core this evening and it works like a charm. Nice work Smash! I really like the idea of using idc-connectors for the new boards (and the jumper-free core...). I'll bet you'll be getting a lot of orders on these! Again, thanks for the good work! /offe

Ok, as Smash mentioned earlier, gloves off... ;) This is nothing but a flamebait, really. Normally I wouldn't waste my precious spare time on writing this, but this is getting absurd guys! In my opinion, TK's doing a great job, providing the community with open source hw/sw. If anyone likes to sell their homebrew SID/FM/LC whatever, I think that's fine. However, setting up a business based on other peoples work and effort is just a lame. Why don't you people contribute to the community instead? There are a lot of pre-fabricated MIDI controllers out there, some good, some bad, but the midibox is something anyone can configure to suit their needs. Several open source projects have been made commercial and that doesn't bring anything good. For the community, let's hope TK can keep the license model, but I understand that you need to protect the mbhp. And, TK, although this is an extremly annoing discussion, it somehow proves you and the other guys at midibox.org have done an extreemly good job! I'm just waiting to get the chance to give something back! /offe

Attilla: Yes, you can use a DINx4 board and just solder one of the "modules". I did this when I was eager to test my core-sid-lcd setup. Just make sure you connect the proper "jumpers" on the pcb. /offe

Ah, I 'd love to have such a unit! Really great idea!

I've been searching for an OLED or PLED 40x2 display to use with the MBFM. Does anyone know where to find this? /offe

Jackan: Det stämmer att du måste definiera om hur många menyalternativ som skall visas. Öppna projektet i MPLAB och sök efter #define CS_MENU_DISPLAYED_ITEMS 5 i filen main.asm. Det finns instruktioner där hur den ska sättas men om du har en 16x2 display ska det vara 4 istället för 5. Kopilera projektet och ladda ner main.hex till pic:en med mios studio. /offe

Bättre sent än aldrig... Jag har haft grejorna liggande här hemma i nära ett år nu utan att få tag i några YMF262/YAC512. Under julen fick jag docklite tid och började bygga och nu har jag i alla fall börjat så klar kanske den blir nästa år vid den här tiden... :) dr00rs: Hur går det själv? /offe

Well, I've slaughterd serveral Sound Blaster cards for these chips and found zip, zero, none. There are serveral on ebay, but they only ship to US/Canada and I'm in Sweden. So, does anyone have these chips or a soundcard with these chips for sale? Please, gimme a pm or mail. /offe

sweeeeet! Any more info on hardware setup/construction? I'd die for an url... :) /offe

Hi, after reading Jurbos post in this thread: http://www.midibox.org/forum/index.php?topic=5755.0 I decided to upgrade to a dual mbsid. The only thing missing is a 6581 chip... So, does anyone have a 6581 for sale or want to trade (I have a new joystick from www.elfa.se for example) I'm all ears. //offe

Great! It's always nice to be able to give something back to the community. I'll have some "quality time" with just me and my "mbsid in progress" tomorrow and will probably test to enable 6 LFO inputs and the joystick like TK mentioned. Actually, just swap the lines that controlls the CC parameter: movlw 0x2F ; control CC #2Fh == Filter Resonance with movlw 0x2E ; control CC #2Eh == Filter CutOff frequency /offe

Well, my assembler skills are not what they should be, I'm usually working in OO-languages... :) I havn't explored that part yet, but it *may* be possible, though I have no idea if it interfers with other parts of the code. If I get the time I will certainly try, but right now I've got little or no spare time at all. What would be nice (provided one could get the joy and LFO to work) is to be able to assign CC to the x- and y-pot thru the menu system. But, on the other hand I don't want to create something I have to patch each time a new version of the software is released. I think TK has put together a uniqe piece of software in terms of features and useability. /offe

Ok, I don't know if this is the way to do it but it "seems to work". Feedback and corrections are highly appreciated! And, kids, don't try this at home unless you are sure what you're doing... At least have someone at the forum have a look at it before you try it out. It works in my test-setup but I've only started to explore the world of MIOS and I might have done something really terrible... :o Hardware setup consist of a 2x10k joystick from http://www.elfa.se. It's wired to A0 and A1 (and of course +5v and GND) on Core J5. Got most of the code from this thread: http://www.midibox.org/forum/index.php?topic=4885.0 All changes was made to the main.asm file. 1) I disabled the ENABLE_AIN_LFO_WAVEFORM by setting its value to 0: #define ENABLE_AIN_LFO_WAVEFORM 0 2) Added a new define clause beneath the define above to be able to swich easy: #define ENABLE_AIN_JOYSTICK 1 3) Just below the #if ENABLE_AIN_LFO_WAVEFORM ... #endif block I added: #if ENABLE_AIN_JOYSTICK ;; initialize ain movlw 2 ; use 2 pots call MIOS_AIN_NumberSet call MIOS_AIN_UnMuxed ; don't service multiplexer interface movlw 7 call MIOS_AIN_DeadbandSet #endif 4) Under USER_AIN_NotifyChange I added the following code: ;; get 7-bit value of pot #00 movlw 0x00 call MIOS_AIN_Pin7bitGet ;; forward value to the CC handler ;; it expects: CC parameter number in WREG ;; CC parameter value in MIOS_PARAMETER1, so: movwf MIOS_PARAMETER1 ; save 7-bit value in MIOS_PARAMETER1 movlw 0x2F ; control CC #14h == Osc 1/2/3 Finetune (default 0x14 call SID_CCIN_Set ; call function ;; get 7-bit value of pot #01 movlw 0x01 call MIOS_AIN_Pin7bitGet ;; forward value to the CC handler ;; it expects: CC parameter number in WREG ;; CC parameter value in MIOS_PARAMETER2, so: movwf MIOS_PARAMETER2 ; save 7-bit value in MIOS_PARAMETER2 movlw 0x2E ; control CC #2Eh == Cutoff call SID_CCIN_Set ; call function return ; and exit AIN handle As far as I can tell, you can pretty much assign any CC value to the pot and it will work, just change the hex value according to the sid_cc_implementation_chart.txt in the mbsid package. /offe

Jurbo: I'll be testing my joystick hack tonight, I'll keep you posted. /offe

Did you have a look at the MIDI Troubleshooting link (http://www.ucapps.de/howto_debug_midi.html)? First, check all soldering points, then check component orientation, then go through the tests in the link above. I'would be more specific if I could but without any more info it's impossible. I know it can be frustrating, but as Torsten wrote, try to isolate one problem at a time. Keep up the work! /offe

Probably no. Actually, this is no rocket science, just read the documentation and use the search function in this forum. If you are using MIOS studio you should get something like "upload completed" or something like that. You should them be able to verify by sending and recieving sysex messages in the midi monitors in MIOS studio. /offe

If the is module is working, you should get som sound out of it... ;) YES That was exactly was I was asking you earlier! Did you check http://www.ucapps.de/mbhp/mbhp_4xsid_c64_psu_optimized.pdf for the correct connections between the SID module and the Core module? Connections should be like: j2:so - j10:so j2:sc - j10:md j2:rc - j10:rc j2:mu - j10:mu /offe

TK: You rule. This would be awesome, specially the option to put MBSID-D in a quadbox... truly awesome!

Wait a second... As far as I can tell from the SID module schematic, IC1:PIN5 connects to IC2:PIN2. In that case, you SHOULD leave R1 out. Otherwise you have to clarify, 'cus I'm not following you... /offe

tokyomatik: Can you be a bit more specific? Just saying "WHAT'S WRONG" and "i don't understand if everything i did was right" doesn't give the rest of us a clue. Have you checked http://www.ucapps.de/howto_debug_midi.html? About the interconnection test, read up on main.asm, I think that's where the docs for this app is. I've not used it, but if I were you, I'd start by checking all connections, then the url above. Do you get any feedback from the core (sysex messages)?

Just to be sure: Did you follow the instructions exactly for connecting the Sid module to the Core module? The reason I'm asking this is that I ignored reading up on the docs and ended up doing 1-1 connection the first time... :)

No. Just leave R1 out as raphael said. /offe