Re: [Discuss-gnuradio] Set USRP clock to system time in GRC

[Josh Blum]

On 04/05/2013 10:05 AM, Martin Luelf wrote:
> Hi list,
> 
> I am wondering if it is possible to set a USRP clock to the system time
> within GRC. I know this is straightforward in Python and C++ using the
> set_time_now method, but as I use GRC a lot I don't want to edit the
> generated python files everytime after I do some changes to my flowgraph.
> 
> I already checked the source (master a few weeks old) but there seems to
> be no call of set_time_now or set_time_next_pps. (I believe there have
> been no patches the last weeks regarding this?)
> 
> If there is no way of doing this in GRC right now, is there any reason not
> to add this to the UHD sink/source to set the clocks to system time by
> default?

I can see that being a helpful option.

Can you try this diff? It added a PC clock option to the sync drop down.
When set, the set_time_now will be initialized approximately to the PC's
time (pythons time.time() call).

http://pastebin.com/BmNeLzb1

-josh

> 
> Have a nice weekend.
> Yours
> Martin Luelf
> 
> 
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