[sdiy] CPLD shield for arduino/AMANI 64/AMANI GT

[Brock Russell]

I'm kind of late picking up this thread but I have to ask, how do you 
create a top octave generator with only 49 cells in a CPLD? The 
Altera EPM3046A has one flip-flop per macro cell so it seems to me 
you'd need two of these devices to generate 12 notes.

I designed a few MK50240 clones a few months ago using 3 and 4 Silego 
SLG46400 Green PAK2 devices and some CD4504 level shifters. It's 
actually possible to make a DIP sized plug in replacement. The Silego 
parts aren't really DIY friendly as they are 2.5mm square 12 pin 
DFNs, but they are very cool devices containing a ton of features in 
a 28 cent part.

Brock


At 08:27 AM 15/03/2012, nvawter at media.mit.edu wrote:
>Oh, heck yeah!
>
>My friend and I are currently obsessed with recreating chromatic clock
>divider chips.  I think a CPLD would be great for that.
>
>The Altera EPM5064 on that Arduino CPLD shield has 64 macrocells.  My
>estimate for a single octave MK50240 clone is about 49 cells.
>
>anyone have any other ideas for MK50240 clones that are available in stock?
>
>
>
>
>Quoting dan snazelle <subjectivity at hotmail.com>:
>>
>>are there any SYNTH DIY uses for a CPLD/programmable logic?
>>
>>
>>http://majolsurf.net/wordpress/?page_id=368
>>
>>
>>
>>
>>http://majolsurf.net/wordpress/?page_id=1663
>>
>>
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