USRP2 with 10MHz Function Generator

GNU Radio
1

Hi

  1.  I am interested to use  Function Generator with Square Waveform

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

Hi

  1.  I am interested to use  Function Generator with Square Waveform

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?
2) What is the relation ship between PPS IN and REF Clock input of
USRP2?

Waiting for early Response

Zimran Rafique

2 
  1.  I am interested to use  Function Generator with Square Waveform out put

as a Reference Clock input (10 MHZ)to USRP2. Is this a fine approach to do so…?

http://www.ettus.com/uhd_docs/manual/html/usrp2.html#ref-clock-10mhz

  1.  What is the relation ship between PPS IN and REF Clock input of USRP2?

The PPS should be in the same clock domain as the reference clock.

-josh

3

On 02/09/2011 05:15 PM, hafiz zimran wrote:

Hi

  1.  I am interested to use  Function Generator with Square Waveform

out put as a Reference Clock input (10 MHZ)to USRP2. Is this a fine
approach to do so…?

Yes

  1.  What is the relation ship between PPS IN and REF Clock input of

USRP2?

The PPS_IN should be in the same clock domain as the 10 MHz if you plan
to synchronize multiple USRPs to each other. Otherwise, you can use any
PPS signal.

Matt

4

On Tue, 2011-02-15 at 11:43 -0800, Matt E. wrote:

  1.  What is the relation ship between PPS IN and REF Clock input of

USRP2?

The PPS_IN should be in the same clock domain as the 10 MHz if you plan
to synchronize multiple USRPs to each other. Otherwise, you can use any
PPS signal.

Matt

I actually synchronize multiple USRPs with unaligned 10MHz and pps.
Sometimes two USRPs are offset one clock cycle (10ns) but that is OK
for my application. Of course, I need also to consider that one pps
interval will not be exactly 100e6 clock cyckles

BR/
Per