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<TITLE>RE: MIDI to CV - Cygnal?</TITLE>
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<P><FONT SIZE=2>> -----Original Message-----</FONT>
<BR><FONT SIZE=2>> From: Paul Maddox [<A HREF="mailto:paul.maddox@ndirect.co.uk">mailto:paul.maddox@ndirect.co.uk</A>]</FONT>
<BR><FONT SIZE=2>> Sent: Wednesday, August 09, 2000 11:02 AM</FONT>
<BR><FONT SIZE=2>> To: Barry L Klein</FONT>
<BR><FONT SIZE=2>> Cc: Synth-DIY</FONT>
<BR><FONT SIZE=2>> Subject: Re: MIDI to CV - Cygnal?</FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> </FONT>
<BR><FONT SIZE=2>> Barry,</FONT>
<BR><FONT SIZE=2>> If you want to get started quickly and cheaply, get yourself </FONT>
<BR><FONT SIZE=2>> an ATMEL STK200</FONT>
<BR><FONT SIZE=2>> you get software (assembler, complier, In System Programmer) </FONT>
<BR><FONT SIZE=2>> and a board</FONT>
<BR><FONT SIZE=2>> with lights and switchs. The chip itself (90s8515) runs at </FONT>
<BR><FONT SIZE=2>> 1Instruction per</FONT>
<BR><FONT SIZE=2>> cycle.</FONT>
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<P><FONT SIZE=2>For 80% of the instructions.</FONT>
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<P><FONT SIZE=2>> My monowave uses a 90s8515 for the main processor and two 90s1200's to</FONT>
<BR><FONT SIZE=2>> generate the oscillators..</FONT>
<BR><FONT SIZE=2> </FONT>
<BR><FONT SIZE=2>> In short, its a very powerfull little processor. and the </FONT>
<BR><FONT SIZE=2>> assembly language</FONT>
<BR><FONT SIZE=2>> is really</FONT>
<BR><FONT SIZE=2>> easy to pick up.</FONT>
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<P><FONT SIZE=2>It's indeed a very nice processor. It used an AT89C2051 for a masterkeyboard, but that's a bloody 8051 which I absolutely don't like. 12MHz that divided by 12 immediately... damn.</FONT></P>
<P><FONT SIZE=2>The AVRs are much nicer, and the 20 pin devices are very cheap. I really like the Flashmemory of Atmel,saves a lot of time. I remember the tedious erasing and reprogramming of SGS ST6 MCUs...</FONT></P>
<P><FONT SIZE=2>I think I'm going to use the AVR as a standard uC in all my future projects (synth, car electronics), despite the fact there is no (easy usable) C compiler for it.</FONT></P>
<P><FONT SIZE=2>Anway, how do the oscillators of your monowave work? Just square and saw? I had the same idea's, but it's just another project in the long long list of projects I still have to finish.</FONT></P>
<P><FONT SIZE=2> </FONT>
<BR><FONT SIZE=2>JJ</FONT>
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