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From: | Jay Prakash |
Subject: | Re: [Discuss-gnuradio] clock synchronization by message passing |
Date: | Mon, 17 Jun 2013 00:32:23 +0530 |
"XML_RPC block in the new gr-extras"XML_RPC would have been subject to the same limitations. It could only call set_time_next_pps if set_time_next_pps was in the uhd_sink/source blocks. Maybe you can update them to include the function.
Let me ask a more fundamental questions - why do you want to reset the time?-JohnOn Sun, Jun 16, 2013 at 11:20 AM, Jay Prakash <address@hidden> wrote:
so do we have any other block to do that. I did'nt find XML_RPC block in the new gr-extras
Jay PrakashSenior UndergraduateElectronics EngineeringIIT (BHU)VARANASIOn Sun, Jun 16, 2013 at 11:43 PM, Adeel Anwar <address@hidden> wrote:
-Adeeluhd_control block supports only a subset of usrp-functions (exposed through gr-uhd) e.g. "set_command_time", set/get_gain/freq etc BUT currently it doesn't support "set_time_now()"> so i checked the new grextras wiki it has uhd_control block i guess that can be used for this job.
https://github.com/guruofquality/grextras/blob/master/lib/uhd_control_port.cpp
On Sun, Jun 16, 2013 at 11:06 AM, Jay Prakash <address@hidden> wrote:thanks for the clarificationso i checked the new grextras wiki it has uhd_control block i guess that can be used for this job.Jay PrakashSenior UndergraduateElectronics EngineeringIIT (BHU)VARANASIOn Sun, Jun 16, 2013 at 11:05 PM, John Malsbury <address@hidden> wrote:The GPSDO can provide an "internal" 10 MHz/1 PPS signal. I'm not sure if that's what you meant or not: https://www.ettus.com/product/details/GPSDO-KIT
AFIAK, you cannot set the time of a USRP with a message. You may be able to use the XML_RPC block in gr-extras to call the function if it is exposed through gr-uhd.-JohnOn Sun, Jun 16, 2013 at 10:30 AM, Jay Prakash <address@hidden> wrote:
_______________________________________________how can we set the time of usrp by sending it message. I know there are function to (usrp.set_time_now()) do this from from top block variable but can this be done by sending message at usrp port .We can give internal reference signal of 10MHz but is there also a way to give pps signal internally i.e. without using any external hardware.
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