Re: [Discuss-gnuradio] E310: Setting "master clock"

[Marcus D. Leech]

On 07/12/2018 01:49 PM, Martin Braun wrote:
> On 07/10/2018 01:40 PM, Marcus D. Leech wrote:
> > > It seems to work properly. I get indications during start up that the
> > > E310 is selecting the clock_rate per my settings, and it's also not
> > > throwing any decimation error when I deliberately mismanage the
> > > clock-sample rate ratio.
> > >
> > > So, does anyone see a problem with what I've done or how?
> > > Is there a doc with these settings spelled out?  I recall digging hard
> > > even for samp_rate and center_freq.
> > >
> > > Thanks!
> > >
> > > Mike
> > Actually, normally, the master_clock_rate is set in a device argument:
> The AD9361-based devices allow modifying the sample rate at runtime, and
> the E310 is one of those devices.
>
> -- M
Yes, but GRC doesn't really provide any way of modifying the *master 
clock rate* at runtime--the methods are in gr-uhd, but there's no
  runtime way of using them if you stick to GRC (unless there are 
messages that can do this, which I missed).