bob I also had trouble and assumed it was the AD9835. That said I was curious. The DDS boards are always on ebay with mounted chips and clock for $10. Yes sir they are plenty to choose from still. I go along with Jerry's comment on the arduino. Plent of code snips for control and DDS chips. Additional note. The Arduino has SPi libraries and such to make 3 wire control interfaces for numbers of things like the everset clock chip. I have used these and I am by no means a great programmer. Regards Paul WB8TSL
On Wed, Dec 13, 2017 at 3:30 PM, Bob kb8tq <[email protected]> wrote: > Hi > > I’m having a little trouble spotting the 9836 in AD’s current lineup of > DDS chips. The > stuff below is thus a bit generic. > > My guess is that you will have a hard time finding a canned solution. > There are a > bunch of registers on your typical DDS part. The what to stuff where tends > to be pretty > application specific (output frequency, clock frequency, amplitudes, modes > ….). It’s not > rocket science, but it also will vary quite a bit from application to > application. > > By far the most common “easy to use” programming environment is the > Arduino. You > still will be pretty deep into this and that to get anything done. A > simple PIC done in > assembler would be the lowest parts count approach. That’s not exactly a > simple thing > to learn just for a project like this. > > Bob > > > On Dec 13, 2017, at 3:03 PM, Richard (Rick) Karlquist < > [email protected]> 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 > > > > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
