[sdiy] New TOG board: $0.02 needed

[Tim Ressel]

Inline code follows...

--- On Tue, 1/6/09, Tim Parkhurst <tim.parkhurst at gmail.com> wrote:

> - Output pulse width option / modulation. I know it would
> be difficult to
> maintain a specific pulse width in the divided-down
> octaves, but it's not
> impossible and might be a nice timbral option, even if it
> was just a 50% /
> 75% option or something like that.

I can easily make a version of the VHDL code that produces other than 50% duty cycle. I believe a version of the 50240 had 37% duty cycle.
 
> - Option to add internal squares together to create saw-ish
> output
> waveforms. Worked pretty well for the ARP Little Brother
> ;-) Could be cool
> to create an octave of saws, and use one of your CPLD
> boards for each octave
> (rather than dividing down for subsequent octaves).

I have a board being fabbed that has dividers and resistor chains to make sawtooths. Another board, also in fab, does sine waves.
 
> - Output for chaining together several of your boards, as
> mentioned above,
> one for each octave. This may be what you've already
> done with the seven
> stage divider.

The on-board divider allows for that, although it is cheaper to do post dividing of the octaves. Got a board for that as well...
 
> Tim (not sure what my 2 cents is worth) Servo

Way more than $02. Darned inflation...

--TimR