bosone

Hi! i have 1 sid 6581 and 2 sid 8580 (currently only one of the 8580 is build...) i plan to build another 2 sid synth, connecting them in a unique unit. the problem is with the power supply. unfortunately i don't have any C64 PSU unit, and so i have to use a normal wall adapter power supply. for the 6581 i was using a 16V 1A powersupply, now with the 8580 a 12V is sufficient. the problem is: how can i use only one power supply for all the sids? i also plan to build the seqeucner, and i will use the same power supply also for this unit.... if i use the 16V 1A type, will i experience overheating of the current regulator? or should i left the 6581 SID unused and build only a 2SID-unit with the two 8580? thanks!!

this is a small modification i did to my masterkeyboard, in order to get rid of the midibox power supply. after checking that the power supply of the keyboard ouputs 12V, i soldered to wire at its output, and let the wire exit from the master the wire exits at the back and connects to the midibox now my setup look like this: and when i turn on the masterkeyboard also the midibox switch on. very simple to do, but i assume i know how to use a tester, how to identify a power supply and how to not get an electroshock! :-)

i could be interested in a collective order of encoders for the midibox sequencer...

Hi! i know a similar project, the only "problem" is that i cannot find a cheap db50xg... not less than 50 euro on geman ebay (which for me, in italy, means 70 euro including shipping) but i am continuing my search..... there exist a shareware editor for the dg50xg that permits a deep editing of the parameters.

i wonder if, with a MIOS application switching, the Sequencer can be used also as a "standard" midibox with encorder...

i have just saw that on ebay it is possible to get some touch pad, as spare parts for laptopts. do you think it would be possiblt to use in a midibox (as digital inputs or a stander 5V cotrollers)?

i have changed ti crystal, and the mios was tested... before it happened *something* that made the core module don't work anymore. should i upload the new MIOS release via midi, right? the PIC already have the bootstrap loader

months ago i tried to switch from SID 6581 to SID 8580 (or so... can't reember well the numbers!) and from old PIC 16F to the MIOS. the result was unsuccessful and my SID lied unused for a long time now i'd like to resuscitate it, starting from cheking the core module. regarding this, i have a dumb question: i don't have any control surface. so, what is the correct firmware i should use for the SID? i DL the latest SID release, should i use it without any further problem or should i find a way to recompile it for adapting to my hardware configuration?

thanks for the info, thorsten. according to your experience, is it difficult to adapt the old midibox16 hardware to the MIOS? (i mean... other that the PIC and the quartz, what else is to change?) is there some doc available for this "upgrade"?

is this compatible with my old midibox16 with LCD?? i have some pic 18F left from my last order... i'll glad to use them! is it possible with some changes in the code? thanks!

thanks for help... at a first sight, MIOS seems very complicated, but i'm sure that, when you understand it, it's very simple... i have only a simple SID module, without any control surface or rotary encorder or LCD (i will only control it with my old midibox 16), do i need to modify something in the code? i just read some lines, and there are a lot of flags for enabling lcd, encoders, mod materix, etc... should i disable them all?? i havo nothing more that the sid module connected to my core. i also have understood that the code provided is for sid 8580 (with improved filter), right? i actually have sid 8580, so i don't need to change anything, i suppose! anyway, this weekend i will try it!! :-)

Finally! i've got the 10MHz crystal and i'm ready to enter the futurre with MIOS... next week i'll download all the necessary info... meanwhile, can someone write me a short description of how to correctly burn my PIC and operate with SID? :P

no!! i didn't remember there were two different versions! thanks!

i just switched my "old" 6581 SID with a 8580, hoping to have a better filter. so i mounted two 6.8 nf caps as suggested by the schematics, but the filter works like crap! if i use only one osc, and set that osc to a low pass (in jsynth) if the cutoff is=0 everything is ok. but when i move the cutoff to 2 or 3 it begins to make strange noise, and it continues in the same way even if the cutoff reach 127. it's not working like a "normal" filter... it only produce noise!!! should i change the caps? or is the fact that i'm using PIC 16F877 instead that MIOS??

i place the order of free samples for two times! :-) we are going to lead microchip to bankrupt!!! :-D

using ONLY one SID module i rewrite the music of one of the best adventure game ever made: Zak mc Kracken and the Alien Mindbenders. All the sounds you hear in this tune are produced by the SID, including the drums. they were overdubbed in cakewalk, and then i applied some effects from my Creamware Pulsar board. i'm still not satisfied with this result, i'm thinking about adding something to the arrangement, which is very close to the original for now! http://www.planetz.com/Pulsar/files/music/1Bosone-Zak_mc_Kracken.mp3 I have also the sound used for this songs (some are just modifications of the presets). i will publish them soon

i was not thinking about finding a SID inside an AMIGA, but about the possiblity of biulding something like SID MIDIBOX with the sound chip found in AMIGA (who was better than the sid, if i don't remember bad!) thanks!!

i will soon probably go to an "exposition" of old ocmputer in which there will be (hopefully) also a market. a great occasion to find some SID... so my question is: i want to find the 8580 model, not the 6581... should i look for the "new" model of C=64? (the one with the "new" case)? i hope also to find something similar to a 2U rack, in which possibly install 4 SID unit.

what about the sound chip in the Amiga? (if there WAS a sound chip!!)

AHHH!!!!! simpler than it seems!! thanks! BTW... was this written somewhere??

i hear only "bip, bip, bip, bip...." with the tone of "bif" always incrasing (say it plays a C, D ,E ,F, G,A ,B, etc) it is normal??? and besides this, i can't play and yes, i used the program changes after uploading all the presets with jsynth...

i have just burned SID latest version on pic16f977. everything works fine (even with jsynth), but when i mount the bankstick the following things happens: - i'm not able to play anything - the SID outputs a short impulse note which pitch is constantly rising - even if i upload the preset bank with jsynth nothing happens what can be the problem? i checked the connections a lot of times!

vi conviene contattarlo per posta elettronica.. non so quanto spesso claudio passa su questo forum (non essendo un MIDI-cista e non essendo direttamente interessato al progetto midibox) comunque io avevo speso un po meno di 20 euro (spese spedizione incluse) per le due PCB del SID (core+sid). le avevo fatte "ricoprire" con non so quale cosa per avere un risultato migliore... ma conta che ero il primo, magari adesso, avendo già il layout del core pronto, deve fare meno fatica! :)

i don't know if this is already asked... but is there the possibilty for you, (in the future) to implement a "Multiple SID" unit controlled by only one core?

lui ha costruito la PCB del mio core e del mio SID... che funzionano alla grande! :-)