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

Hi list Here is an Arduino way to control AD9833, AD9850, AD9851, AD9912 and AD9913 Alternatively using an Atmega128A to control an AD9912: Bo ___ time-nuts mailing

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

Seconded on the Andy Talbot suggestion, iirc he has almost exactly what you need On 14 Dec 2017 17:19, "Dave B via time-nuts" wrote: > Take a look at Andy Talbot's page at... > > http://www.g4jnt.com/Synthesizers.htm > > Lots of good options there for that sort of thing. > >

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

Take a look at Andy Talbot's page at... http://www.g4jnt.com/Synthesizers.htm Lots of good options there for that sort of thing. 73. Dave G0WBX. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

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

The problem with the 9854 DDS is that the analog reconstruction filters that you have to place after its outputs, are not guaranteed to have *exactly* the same phase behavior  between the two sections (I and Q). This may or may not be important, depending on the application. For sure, for an

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

I have those 9954/9854 boards and the problem is the drivers for newer operating systems past XP aren’t available. The AD9854/9954 boards were clones of the AD eval kits and you downloaded the eval kit software from AD. I got the board(s) working with Windows 7 but it took a lot of screwing

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

Bascom is a Basic compiler, for AVR chips if my memory serves right. > On Dec 13, 2017, at 12:10 PM, Adrian Godwin wrote: > > Maybe this one ? > > http://www.qsl.net/pa3ckr/bascom%20and%20avr/ad9951/index.html

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

Rick Please contact me off list we did a board for Corby to be used with the HP Rb using a PIC but I would have to better understand your needs to figure out what board to use. Bert Kehren   In a message dated 12/13/2017 4:06:01 PM Eastern Standard Time, artgod...@gmail.com writes:   It's a

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

Of Richard (Rick) Karlquist Sent: Wednesday, December 13, 2017 3:03 PM To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Subject: [time-nuts] Simple open source microcontroller solution to tune DDS needed I need a very simple controller to tune a DDS with up/down sw

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

?option=com_phpshop=shop.browse_id=5=1 > Sent: Wednesday, December 13, 2017 at 6:22 PM > From: "Hal Murray" <hmur...@megapathdsl.net> > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Cc: hmur...@megapathdsl.ne

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

The Arduino is basically just a processor chip on a breakout board that has some connectors, crystal, voltage regulator, USB interface. The standard processor is an Atmel ATMEGA328. The Arduino Nano is a shrunk down version that can be treated as a DIP packaged processor. You can also buy

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

> ... is in bascom, whatever that is. I had to look it up. https://en.wikipedia.org/wiki/MBASIC#BASCOM > Microsoft sold a CP/M BASIC compiler (known as BASCOM) > which used a similar source language to MBASIC. > Developers welcomed BASCOM as an alternative to the popular but slow and > clumsy

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

ESP8266 is my favorite as of late. It comes in a "DIP Form Factor" and does SPI and random DIO very nicely. Even better, as to user interface, it has Wi-Fi and instead of physical buttons, the UI can be as simple as buttons on a web page it serves up. Tim N3QE On Wed, Dec 13, 2017 at 3:03 PM,

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

The digispark and digispark pro are also some nice <$15 development boards that are USB programmable, use the Arduino IDE or AVR compiler, and have just enough pins to be useful. On Wed, Dec 13, 2017 at 4:34 PM, jimlux wrote: > On 12/13/17 1:28 PM, Jerry Hancock wrote: >

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

On 12/13/17 1:28 PM, Jerry Hancock wrote: Well, if you haven’t selected a DDS and you need I/Q, I would go with the tried and true 9854 as it has I/Q outputs and I thought a 12bit DAC so the resulting spurs and sfdr are lower than other chips, or were, as I think they have 14bit DACs on other

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

Well, if you haven’t selected a DDS and you need I/Q, I would go with the tried and true 9854 as it has I/Q outputs and I thought a 12bit DAC so the resulting spurs and sfdr are lower than other chips, or were, as I think they have 14bit DACs on other chips now. It also depends on the highest

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

On 12/13/17 12:56 PM, Richard (Rick) Karlquist wrote: 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

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

Arduino is, of course (or actually some slightly weird dialect of C++). But the pa3ckr code at http://www.qsl.net/pa3ckr/bascom%20and%20avr/ad9951/ad9951-12.bas is in bascom, whatever that is. On Wed, Dec 13, 2017 at 9:12 PM, paul swed wrote: > Must have missed something

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

Must have missed something here. Basic? Arduino uses C behaviors. God knows everythings been written for it so maybe there is a basic language. That said schematics are readily available and I believe its all open source. Thats why its been so popular. Lots of nice simple tools for it also.

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

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 < rich...@karlquist.com> wrote: > This looks like a very good starting point. It's a superset >

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

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

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

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

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

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.

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

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" wrote: > I need a very simple controller

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

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

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

I was using PIC chips to talk to AD9854 and 9851 and switched to the low cost Arduino boards as they are so much easier to program and have so much accessible I/O and adapter boards. I know there is a lot of code out there for AD chips as it could be a little tricky to clock the bits out to

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

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 < rich...@karlquist.com> wrote: > I need a very simple controller to tune a DDS with up/down > switches (imagine setting the

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

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