[time-nuts] Simple open source microcontroller solution to tune DDS needed

[Adrian Godwin]

Maybe this one ?

http://www.qsl.net/pa3ckr/bascom%20and%20avr/ad9951/index.html

There are probably many others


On Wed, Dec 13, 2017 at 8:03 PM, Richard (Rick) Karlquist <
richard at karlquist.com> wrote:

> I need a very simple controller to tune a DDS with up/down
> switches (imagine setting the time on a clock).  A DDS
> chip, such as an AD9836 would go on a PC board and a couple
> of pushbuttons would tell the controller to tune up or
> down.
>
> Before reinventing this wheel, I thought I would see if
> anyone knows of a similar solution that can be leveraged.
> What I would like is both hardware and software, where
> the software could be edited to accommodate the up/down
> buttons.  A last resort would be to write software from
> scratch.  My software skills are extremely limited.
> Cutting and pasting code might work for me.
>
> I need to be able to embed this onto an existing PC board.
> I can't use a preexisting "daughter" card, other than
> to copy the design of the card.
>
> Rick Karlquist
> N6RK
>
>
>
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