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Discussion of precise time and frequency measurement

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Oscilloquartz 8600-3 End of range...

UK
Ulf Kylenfall
Wed, Dec 13, 2017 5:19 PM

Ed,
I am inclined to beleive you.
I have not found any RF-wiring into the "core".Only what seems to be heater flex cable.
A small part of the heater winding can bee seenin the gap where the flex cable is routed to theinnards.
The only way to learn the truth will be to unwindthe kapton tape and from there unscrew the lidand see if the oscillator really is inside.
Magnus got some pictures. He can upload themwhere he see fit.
I tried to go to the Photobucket site. It attacked me...

73
Ulf Kylenfall - SM6GXV

Ed, I am inclined to beleive you. I have not found any RF-wiring into the "core".Only what seems to be heater flex cable. A small part of the heater winding can bee seenin the gap where the flex cable is routed to theinnards. The only way to learn the truth will be to unwindthe kapton tape and from there unscrew the lidand see if the oscillator really is inside. Magnus got some pictures. He can upload themwhere he see fit. I tried to go to the Photobucket site. It attacked me... 73 Ulf Kylenfall - SM6GXV
PS
paul swed
Wed, Dec 13, 2017 5:25 PM

Ulf when I went to the photobucket site yesterday it did the same.
Not a good place to share any longer.
I had wanted to see the pictures.
Regards
Paul
WB8TSL

On Wed, Dec 13, 2017 at 12:19 PM, Ulf Kylenfall via time-nuts <
time-nuts@febo.com> wrote:

Ed,
I am inclined to beleive you.
I have not found any RF-wiring into the "core".Only what seems to be
heater flex cable.
A small part of the heater winding can bee seenin the gap where the flex
cable is routed to theinnards.
The only way to learn the truth will be to unwindthe kapton tape and from
there unscrew the lidand see if the oscillator really is inside.
Magnus got some pictures. He can upload themwhere he see fit.
I tried to go to the Photobucket site. It attacked me...

73
Ulf Kylenfall - SM6GXV


time-nuts mailing list -- time-nuts@febo.com
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Ulf when I went to the photobucket site yesterday it did the same. Not a good place to share any longer. I had wanted to see the pictures. Regards Paul WB8TSL On Wed, Dec 13, 2017 at 12:19 PM, Ulf Kylenfall via time-nuts < time-nuts@febo.com> wrote: > > Ed, > I am inclined to beleive you. > I have not found any RF-wiring into the "core".Only what seems to be > heater flex cable. > A small part of the heater winding can bee seenin the gap where the flex > cable is routed to theinnards. > The only way to learn the truth will be to unwindthe kapton tape and from > there unscrew the lidand see if the oscillator really is inside. > Magnus got some pictures. He can upload themwhere he see fit. > I tried to go to the Photobucket site. It attacked me... > > 73 > Ulf Kylenfall - SM6GXV > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >
R(
Richard (Rick) Karlquist
Wed, Dec 13, 2017 8:03 PM

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

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
AG
Adrian Godwin
Wed, Dec 13, 2017 8:10 PM

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@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


time-nuts mailing list -- time-nuts@febo.com
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ailman/listinfo/time-nuts
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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@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 > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. >
JH
Jerry Hancock
Wed, Dec 13, 2017 8:25 PM

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 the various registers.  The nice thing about the Arduino boards is that they have built in serial so whatever you write can be easily converted to USB control for both error logging and setting of parameters.  There are ethernet shields, wireless, etc.  There are a lot of AD9854 codes out there that can probably be used as a foundation for the AD9836.

On Dec 13, 2017, at 12:10 PM, Adrian Godwin artgodwin@gmail.com 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@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


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

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 the various registers. The nice thing about the Arduino boards is that they have built in serial so whatever you write can be easily converted to USB control for both error logging and setting of parameters. There are ethernet shields, wireless, etc. There are a lot of AD9854 codes out there that can probably be used as a foundation for the AD9836. > On Dec 13, 2017, at 12:10 PM, Adrian Godwin <artgodwin@gmail.com> 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@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 >> >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.
BK
Bob kb8tq
Wed, Dec 13, 2017 8:30 PM

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 richard@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


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

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 <richard@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 > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.
CJ
Clint Jay
Wed, Dec 13, 2017 8:47 PM

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@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


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.

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@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 > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/m > ailman/listinfo/time-nuts > and follow the instructions there. >
PS
paul swed
Wed, Dec 13, 2017 8:48 PM

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 kb8tq@n1k.org 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 <

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 -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/

mailman/listinfo/time-nuts

and follow the instructions there.


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/
mailman/listinfo/time-nuts
and follow the instructions there.

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 <kb8tq@n1k.org> 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 < > richard@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 > > > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >
R(
Richard (Rick) Karlquist
Wed, Dec 13, 2017 8:56 PM

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@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


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
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time-nuts mailing list -- time-nuts@febo.com
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and follow the instructions there.

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@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 >> >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >
R(
Richard (Rick) Karlquist
Wed, Dec 13, 2017 9:03 PM

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@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


time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/m
ailman/listinfo/time-nuts
and follow the instructions there.


time-nuts mailing list -- time-nuts@febo.com
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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@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 >> >> >> >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > >