Rio

now it works, i had in the SET PATH command a whitespace after line, so that was the reason why it has not recognize ;) best regards, rio

ok thx. so i will try again at home. But i think i recived a "'make' command was not found" yesterday. Maybe i left something out (PATH definition?). I've installed MSYS and GPUtils allright. I will try and write here an answer again, if it not works... thx, rio

And where can i find the make.bat there or how do you mean 'using "make"-command'? http://svnmios.midibox.org/listing.php?repname=svn.mios&path=%2Ftrunk%2F&rev=0&sc=0 thx for help, best regards, rio

Hey guys, i want to recompile the setup_mbseq_v3.asm (3.7f) with my own setup (setup_mbseq_rio.asm) again, but something changed a bit in src-structure over the years. I installed msys 1.10 and gputils too. then i have readen that: http://www.midibox.org/dokuwiki/doku.php?id=windows_toolchain_quickstart but where is the make.bat file in mbseq-directory? so i tried to write an own make.bat for my setup: gpasm -p 18f4620 -I ./src setup_mbseq_rio.asm ..but it can't compile, mios.h and so on is missing...it is in the subfolders....but i don't know, how i can configure correct or where i find a predefinied make.bat. i hope someone can help me... best regards, rio

Yap. The 1st encoder == datawheel, so for my work the 1st encoder is sufficient for all setups... my intension was to use the datawheel only for bpm.... and that it will automatically jumps to bpm-screenor show only bpm for a short time. That makes more sense to me. maybe someoneelse has done that before? best regards, rio

nice .... and please can you short describe, how i can solve it or where i get an info/description how i can configure that? best regards, rio

I did not find something (in a short search) in forum about using main datawheel for bpm, so my question is: Can the MBSEQV3 application adaptet, so that it is possible to use the big Datawheel only for adjusting bpm? My suggestion is: if i scroll the main datawheel then it should switch to bpm-menu and INC/DEC the value, so that i can change speed easily while playing Best regards, rio

ok, i've drawn the newer PCB with the additional caps. I hope that i havn't forget anything or that there isn't an error. It's only handdrawn. Note: The signal out 1x4 pin header: OOOO (Left Ch, GND, GND, Right Ch) Changes: - 2 x addtional 220nF between 12v and GND, and -12V and GND. - 2 x necessary 220pF parallel to the 22K resistors. - additional 10k trimpot to set/tune 0..5V for gain of both CEM - PAN is opened, because AUDIO IN will be connected to both Audio INs - GND_EXT for connecting GND of C64 PSU Best regards, Rio. CEM3378_handmade2.zip

Sorry for delay, .. i havn't time yet, but i havn't forget it. Uploading soon.

What type of patch is it? - polyphon patch in mono mode? You can also try following: - switch to a lead patch - start the synth sound by pressing SID1+MENU. - check whether all voices will be played by changing Waveform for OSC1,2,3

The schematic is the same like in documentation of CEM3378. I only added the additional caps. The PCB shows, where a ground wire should be or not. Besides, i got trouble creating/converting a schematic in eagle.... I'll make the newer PCB at evening, uploading tomorrow. Best Regards, Rio.

The solution is decribed in following thread: CEM3378 Schematic

Now i've solved that problem of swinging background noise: I'd measured a frequency of 700.000KHz on a oscilograph, which was produced by self ocillating of the TL072 and which modulates the whole audiosignal dramatically. For example: if i put my fingers in the near of that TL072... the whole audio signal was swinging... So if you want to build this schematic above, please don't connect all that ground wire to external c.v. inputs and audio signal inputs (add only one single ground connection between both PSUs directly and a direct connection to that board) and add a pair of capacities (2x220pF) parallel to the 22k at TL072. That schematic will give a negative-feedback condition to that disturbing high frequencies. Schematic: 22k +-----/\/\/---+ | | | 220pf | +------||-----+ | | | |\ | --+----|-\ | | \_____| | / -------|+/ |/ That should solve the self oscilation of TL072 and provides a clean filtered sound. (for people, which are interessted in that, i can add a new PCB screen here too) Best Regards, Rio

the problem is solved by adding few capacities at TL072. I'll describe the solution in the cem3378 thread after weekend. Now the filter sounds fine. Greets, Sebastian

If you get no reply after longer delay, let us know.. Best Regards, Rio.

Mike's shop is really ok and sufficient for DIY projects. All my device running fine with his boards ;) and his support is great. The rotary encoder you can get from voti. They are called SW-ROT-1. http://www.voti.nl/shop/catalog.html?SW-ROT-01 You have forgotten the bankstick-board from Mike too! And if you want to buy more than 3 EEPROMs, you can buy these somewhere else (they will be a lot cheaper e.g. at conrad) knobs and datawheel you can get e.g. from ALBS Electronic, but they only accept big orders... maybe you can order somewhere else these things or you canibalize old/damaged electronic devices like mixer etc. ;) Greets, Rio.

Have you noticed the same noises on your installation? I've checked my again. There are 2 noises: the first is net zipper noise. I've solved it mostly by put up new ground lines between the SID+Core+AOUT_LC modules which are in the same case. The second noise is more difficult. Seems the TL072 swings by itselfs and it sounds like a dogpipe, which changes frequency after a while. If I put my fingers in the near of it then the frequency will also be changed. Bad bad...

My device sounds with noises as soon as the filter c.v. is connected to filter. Please, listen to that example in attachment. Did you hear the same with AOUT_LC? Has someone notice same behaviour or can someone say where this noises are come from? Best Regards, Rio example-cem3378-noise-wav.zip example-cem3378-noise-wav.zip

that music in background... :) omg but that oil-beamer ( i don't know before ) looks awesome... Greets, Rio.

Thx for your help, but that sweep and the noise are continuous, when no voltage will be changed. Maybe i'll record it at weekend and upload it here... so you can check it by connecting your AOUT_LC after you've finished your programming stuff. Thx a lot for your help ;) Best Regards, Rio.

i use AOUT_LC. What is the name of your psu? Which outputs are there? Are you using voltage regulators with your psu too? Maybe i'll test that, if i got one. Greets, Rio

i've tested 4 of the cem3378 chips. All sounds in the same way. I can listen to a sweeping noise in background at all... But the chips are connected like in pdf schematic of cem3378. If i press my fingers on the chip...this sweeping noise will be more or less boosted. The second noise is a repeating sound in background, like a train drives on the rails. Third, i can measure a constant high frequency on osciloscope if i switch the psu on. That high frequency modulates the sound waves to thicker ocillations. ..but besides of these facts, the sound of the filter is allright. Only that noises are anoying and not useful for studio recordings etc.. I believe the reason could maybe my psu... i don't know..

Ploytec.de das soll wohl ein Taktgeber sein - Nein, ich suche kein taster. Brauchst Du ein Schweller-Pedal ja ein Schweller-Pedal, kein taster..

And additional i can measure a constant high oscillation on a oscilograph (but i don't hear that)... What could be the reason for that oscillation? @moxi: do you measure something like that too?

@moxi: what is weel? and really no background noise? i've used a +/-15V trafo and used ripple filter + 7805,7905,7812,7912 to get +5V,-5V,+12V,-12V, which i used to feed the filter+AOUT_LC. Damned that i can listen to a sweeping noise in background...i don't know what i do wrong.