Hi I just tried your suggestion and it was ok for the RX side, but in the Tx side the decimation wont go up to 1024, it only decimates up to 512,
-- Asking for clock rate 16.384 MHz -- Actually got clock rate 16.384 MHz -- Performing timer loopback test... pass -- Performing timer loopback test... pass UHD Warning: The hardware does not support the requested TX sample rate: Target sample rate: 0.016000 MSps Actual sample rate: 0.032000 MSps so is this locked for security or something, or the hardware simple doesn't have the capabilities? 2016-04-07 5:33 GMT+00:00 Martin Braun <martin.br...@ettus.com>: > On 04/06/2016 10:26 PM, Martin Braun wrote: > > On the release 4 image, you can't do that. But you can set the clock to > > 16 MHz and use a decimation of 1000. Or you can use a clock rate of > > 16384e3 and a decimation of 1024, for a better decimation filter > response. > > ...they'll probably be about the same, as the same number of halfbands > will be active. But the point is, you can't go below 10 MHz MCR on > release 4, and not above decimation 1024. > > Cheers, > M > > > > Cheers, > > Martin > > > > On 04/06/2016 06:11 PM, Gabriel Pechiarovich wrote: > >> Hi, thanks for your answeri wasn't able to answer earlier. > >> > >> I was aiming to a 8MHz clock rate in order to use the DDC and get a > >> 16000 sample rate. > >> So i think i was misunderstood. > >> > >> Thank you very much > >> Gabriel > >> > >> > >> 2016-03-31 13:25 GMT-05:00 Martin Braun <martin.br...@ettus.com > >> <mailto:martin.br...@ettus.com>>: > >> > >> On the release 4 image, you can't set the clock speed under 10 MHz. > >> However, you can use a DDC (which is built in and automatically > used). > >> Simply set the clock rate to 32 MHz (or 16 MHz if this is MIMO) and > the > >> sample rate to 8 MHz. > >> > >> Cheers, > >> Martin > >> > >> On 03/30/2016 05:02 PM, Gabriel Pechiarovich wrote: > >> > Hi all, > >> > I've developed a flowgraph wich includes a qpsk modulator and and > >> audio > >> > encoder, I used to run it in the E310 using the first release > >> > (http://files.ettus.com/e3xx_images/e3xx-release-001/) and now > >> trying to > >> > use the release 4. > >> > > >> > The problem is: > >> > in the UHD sink and source the clock rate was set to 8e6 Hz, and > it > >> > worked fine, in the release 1, but in the relese 4 the Clock rate > wont > >> > go lower than 10e6 Hz, so i cant archive the same results. > >> > > >> > Any idea how to force the use of 8MHz as the clock rate using the > >> release4 > >> > > >> > Thank you very much > >> > Gabriel Pechiarovich Salas > >> > > >> > > >> > > >> > _______________________________________________ > >> > Discuss-gnuradio mailing list > >> > Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > >> > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >> > > >> > >> > >> _______________________________________________ > >> Discuss-gnuradio mailing list > >> Discuss-gnuradio@gnu.org <mailto:Discuss-gnuradio@gnu.org> > >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >> > >> > >> > >> > >> -- > >> Gabriel Pechiarovich Salas > >> Red Dragon Games > >> Designers and game developers > > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -- Gabriel Pechiarovich Salas Red Dragon Games Designers and game developers
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