Dave, from what I remember the overhead will be incurred each time a (re)tune takes you to a different line of the IQ imbalance table…you can see the granularity of that from simply looking in the CSV file. The overhead is very minor I suspect, we are talking about updating two integer coefficients (phase and mag correction) in setting regs for each TX and RX port. -Ian
> On Jun 7, 2018, at 11:08 AM, Dave NotTelling via USRP-users > <usrp-users@lists.ettus.com> wrote: > > Robin, > Thanks for your feedback! > > Marcus, > And that overhead is just on the initial tune, or for all tunes? I do > mostly timed commands, so should I allow for a little more time before the > deadline to send the timed command out? > > Thanks all! > > On Thu, Jun 7, 2018 at 1:56 PM Marcus D. Leech via USRP-users > <usrp-users@lists.ettus.com <mailto:usrp-users@lists.ettus.com>> wrote: > On 06/07/2018 01:04 PM, Dave NotTelling via USRP-users wrote: > > Is there a processing requirement impact to using the calibration CSV > > file? Does using the cal data have any impact on tuning time for the > > radio itself? > > > > Thanks! > > > The calibration values are stuffed into some machinery in the FPGA when > tuning happens. So, there's a little extra command-channel overhead. > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com <mailto:USRP-users@lists.ettus.com> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > <http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com> > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
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