Poly Keyboard Interfaces

[Isac Georg Jensen]

Niklas Lindberg wrote:
> I just felt compelled to tell you that I am actually working on something
> like this for the moment. It will be a 16ch MIDI-CV converter housed in a
> standard 19" 3HE card frame (It will be part of my modular). The hardware
> is based on a 8031 CPU with 32K EPROM and 2K RAM. There will be a 16x2 char
> display and a standard telephone-type keyboard for assigning of the CV-channels.
> I will use a 12-bit DAC from Philips (Not tested yet though).
>
> ...Nice describtion erased!
> 
> If anyone should be interrested in this, I can supply whatever info needed as
> soon as I get it working ( _If_ it will work, of course :-}
> 
I'm doing a 8ch MIDI-CV converter with 16x2 character display and a
tele-type keyborad. Pretty standard I should think. But, the
non-standard here is that I'm using a Motorola 68HC705C8 uProcessor ! It
has 8k onboard RAM and 31.25 kBaud seriel interface. The reason for
using this uProc. is that it's part of a course being taught at my
university. The clock speed is *ONLY* 4MHz ( the 8031 runs at 12MHz if I
remember right ) but I think it's sufficient for doing CV's, Gate, Pitch
bend and perhaps velocity. 
The analog part is also based on the Doepfer MCV8 interface (rearranged
of course). My biggest problem right now, is figuring out a 'good'
user-interface. How do you route and assign the controllers ? Is there
any 'standard' way of assigning multiple notes to different CV's ? How
do the Kenton MIDI-CV units do ?  

Niklas, could I please have a look at your Pascal code ?

Thanks 

I.G.Jensen