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

[Richard (Rick) Karlquist]

I should have said AD9832.  But that was just an example
that would work.  I may choose a different one for whatever
reason.

Regarding the Arduino board:  that is what I would call
a "daughter" board, which I can't have.  Is the Arduino
board open source, so that I can just copy the schematic
of it to my own board?  Is the Arduino software also
open source?

Rick

On 12/13/2017 12:47 PM, Clint Jay wrote:
> I think maybe you might have meant the AD9835 ?
> 
> Anyway, there are plenty of code examples out there, do you have a
> processor in mind or are you free to use whatever is suggested?
> 
> 
> 
> On 13 Dec 2017 20:03, "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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