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Hello, Is there a simple way to get midibox SID v 1.7.303a so that AOUT's 5,6,7 output 1V/Oct. instead of V/Hz? This is easy in Midibox CV (under the output curve option menu), but after an hour digging through .inc files I can't track down any mention of the chaging the AOUT output mode. -gerald

Okay, so I must be blind, but the midi_evnt.inc file wasn't included with midibox SID v 1.7303, or earlier versions that I have either. What am I missing? ???

Greetings, I finally got around to installing the latest SID OS, with '303' control, and have been loving it. I was hoping that the pitch of the sequence would be mapped to an output on the AOUT, and once again I need to dig into the source files to figure out the AOUT hard-coded routing. I'm having a hell of a time finding where in the code this is laid out... there are something like 60 files to wade through. Any idea which file/files define the AOUT routing? I Finally got around to posting some pictures and details on my modular midibox SID here: http://home.earthlink.net/~erinys/tech.htm -gerald

Thought this video was of interest to this thread. Robert Rich (big name in synthetic music to say the least) is demo-ing new modules (frac format!) by Synthesis Technology http://www.sonicstate.com/news/shownews.cfm?newsid=2645 About half-way through, he starts playing with a new midi-CV converter, and goes nuts about its arpeggiation and micro-tuning capability. Basically, watching this video shows the kind of response the midibox CV could/will get from the modular synth / DIY community. I love the idea of just switching applications on my Frac-SID to the CV program when I'm not in the mood to use the SID's oscillators, and filter. Makes a wonderfully versatile module that much more versatile! http://www.midibox.org/forum/index.php?topic=4963.0

Nothing that I can see.... this list makes me drool! -gerald

Looks fantastic - will have to try it out. Thanks for supporting for the old AOUT board. Love the idea of the low cost AOUT... I may have to build one just to try it out, even though I have the "high-cost" version already. Since my dream of modifying the source code in C died due to my sticking with the out-dated Windows Me, I'd like to add these feature requests to this program. 1. LFO's to modulate the AOUTS 2. 6 analog inputs (not from the AIN board, but just the 6 inputs from the core) that map/mix to AOUTS 3. A "sophisticated" note quantizer. Reads AIN, and quantizes it to various scales / keys. The result is sent to an AOUT. 4. A matrix mixer - mix AIN's and LFO's to AOUTS 5. An arpeggiator Most of these features have been written for SID 1.7a... maybe it'd be easy to add them to CV 1.1? If I ever upgrade to Xp (or it may be Longhorn before I get around to it), I'll give it a try. -just dreaming... these features would make this CV controller more sophisticated than any available on the market! -gerald

Glad to see the list back up again! I got my AOUT board working with CV_v1_0, and calibrated the output by setting the output to 9 V for the maximum octave my keyboard puts out. It seems to track 1V/octave pretty well now.  I switched back to SID software, and it seems to be working. I have searched the code for quite some time, and I still cannot find where (or which) parameters are mapped to CV outputs...? Now, once I figure this out, I would _love_ to try out the "bended midibox SID" firmware... is there a link to this somewhere? -gerald

Hello, I finally got the pieces together, and built an AOUT board, and am trying to test it out. I tried to run CV_v1_0 to set up the board, and adjust trimpots, but I'm not getting anything from the outputs, or the gate signals either. Power light is on, though! I figured that the problem is that I have AOUT connected to the CORE module via J6 on the Core, and not J10 which is what midibox_CV is probably set for. Is there a enable_J6 burried in the included files somewhere? Assuming I get the board working in CV mode, I'll need to get it working with midibox_SID. I switched the enable_AOUT on in main.asm, but couldn't find where parameters are mapped to the CV's. Which file contains these "hard-wired" definitions? -gerald

Greetings. I replaced the old-design psu with the new "optimized" one over the weekend, and no more 60Hz hum! Problem is, it is replaced with high frequency SID noise that is in tune with the notes being played. Even worse, the freekin' stuff is running through the ground of my whole modular synthensizer - I hear it even with the Sid output disconnected from my VCA. Two ideas what it could be - 1. I have a single ground point coming from the "center ground pin" on the 7 pin DIN from the C64 power supply that goes to the ground of all of the 1/8" input/output jacks. The mbhp_4xsid_c64_psu_optimized.pdf doesn't show where to connect a "global" ground like this, maybe this ground is picking up noise? 2. I didn't add a 2200uF cap as shown next to comment #5 - since there is a similar cap on the input side. Also, I only have a single SID module hooked up, and wasn't sure if this cap was necessary? Another question - I built an amplifier/attenuator for the output/input of the SID to bring its output and input levels to values resonable for a modular synth. My PAiA wants 10V p-p oscillator voltages. Any idea what the output voltage range is for the SID? Also, what does it want to see on its input? What is its input impedance? Thanks for any ideas you may have, -gerald

I tried it - but something terrible is happening, I believe with SDCC - I keep getting general protection faults, and other errors that crash my computer HARD. I was getting these errors with the previous version of the makefile.bat, and I suspect it is something about windoze ME. I'd love to keep fighting with this, but I worry about corrupting my hard-disk with so many hard-boots. Maybe I should make a DOS boot disk, and try to run it without windows in the background? -gerald

I have spent about 4 hours trying to get the makefile to work in WinME... and the best I could do, was to find workaround for the problem with having a string defined with an = character in it. Just split the string in two or three, around the offensive = symbol, and when you execute the strings later on, add the = symbol. For example, [tt] set MIOS_WRAPPER_DEFINES=-DSTACK_HEAD set MIOS2=0x37f -DSTACK_IRQ_HEAD set MIOS3=0x33f %GPASM% %MIOS_WRAPPER_DEFINES%=%MIOS2%=%MIOS3% [/tt] Crude, but this works. Now my problems seem to have become much worse - my system hangs when I run the make.bat file. Haven't had much time to fight this... would rather solder boards really. -gerald

I think I found the major problem with the batch file syntax. Commands like set SDCC_DEFINES=-DDEBUG_MODE=0 make DOS 8.0 throw up - it doesn't like the second = sign. I can't think of a way around this - I may end up having to type everything in by hand at the command line. -gerald

Yes - my paths are correct. I found some info online that indicates many batch commands from NT/XP/2000 are incompatible with old DOS based machines. Example - in the clean.bat file if exist _output del /s /q _output My DOS version 8.0 doesn't support the /q switch. Don't know why, but it doesn't. I'll keep plugging away at modifying make.bat so that it works. With this set of examples, you have covered just about everything on my wish-list! Not only that, but I have always been a wannabe programmer - I can modify examples much much faster than I can program from scratch. So, armed with these examples, I'm going to have a great time. Let us know when they're posted! Thanks much! -gerald

Posted by: drsyncenstein But the problem is, building the electronics is so much easier compared to writing the software, that iguess very few midiboxers are able to code this. ----------- I'm going to give it a go. I installed the C wrapper stuff, but have been running into some problems with make.bat giving me syntax error file not found (x3) Out of environment space (x3) Assembling MIOS SDCC wrapper Bad command or file name. ================ Compiling pic18f452.c Bad command or file name (x3) blah blah blah. It seems like the syntax of the dos batch file is not happy with my Win ME. Ah.... a little web-searching and I found that NT's batch language is pretty much incompatible with the DOS 8.0 that ME runs. I'll try to translate it, but it may be hopeless... Stinkin' old computer... -gerald

A friend of mine purchased one of these over a year ago, and hasn't received it yet... http://www.synthmodules.com/psim-1.htm Looking at its specifications, it looks like a Midibox CORE module, with an AOUT board could easily do everything that this thing can, perhaps even more, since it will have midi I/O as well. How difficult would it be to program something like a quantizer, or S/H for such a module? Would it make sense to start with the Midibox CV program, and modify it, or from some other program like the Midibox seq (sequencing would be a really nice feature too)? If this worked, and was easy enough to write applications for, there would be a pretty large demand for such a versatile beast! I suppose a C++ editor would be a little easier to deal with - is this in the works, or just a dream at this point? -gerald