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

[Adrian Godwin]

It's a bit bizarre that it uses Basic. I just remember my local ARC using
it as a project sometime ago. Possibly in the 20th century. :)


On Wed, Dec 13, 2017 at 9:03 PM, Richard (Rick) Karlquist <
richard at karlquist.com> wrote:

> This looks like a very good starting point.  It's a superset
> that I can just simplify.
>
> Rick
>
>
> On 12/13/2017 12:10 PM, Adrian Godwin wrote:
>
>> 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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>>