Does anyone have any ideas on this? Is uhd_rx_cfile not the right tool to be using?
Devin On Thu, May 9, 2019 at 10:39 AM Devin Kelly <dwwke...@gmail.com> wrote: > > Sorry to revive an old post but I'm having the same problem with UHD > 3.12.0.0. Am I doing something wrong with uhd_rx_cfile or should I just > upgrade to a newer UHD? > > $ uhd_rx_cfile -r 10e6 -f 850e6 -a > 'args=192.168.40.2,master_clock_rate=200e6' tmp.dat > [INFO] [UHD] linux; GNU C++ version 4.8.5 20150623 (Red Hat 4.8.5-36); > Boost_105300; UHD_3.12.0.heads-v3.12.0.0-0-gec786351 > [WARNING] [X300] Cannot update master clock rate! X300 Series does not > allow changing the clock rate during runtime. > [WARNING] [X300 RADIO] Requesting invalid sampling rate from device: 200 > MHz. Actual rate is: 100 MHz. > [WARNING] [X300 RADIO] Requesting invalid sampling rate from device: 200 > MHz. Actual rate is: 100 MHz. > [UHD_RX] Defaulting to mid-point gains: > [UHD_RX] Channel 0 gain: 49.5 dB > ^C > > Thanks, > Devin > > On Thu, Jan 17, 2019 at 12:48 PM Rigney, Kevin E via USRP-users < > usrp-users@lists.ettus.com> wrote: > >> I’m working with the TwinRX and am having the same results as Emanuel. I >> was ignoring the warning about the sample rate but you said that it must >> run at 200MHz. Can you explain why UHD sets the sample rate to 100MHz if >> 200 is required? >> >> Thanks, >> >> -Kevin >> >> On Mon, 14 Jan 2019 at 7:06 AM Emanuel via USRP-users < >> usrp-users@lists.ettus.com<mailto:usrp-users@lists.ettus.com>> wrote: >> >> Dear Martin, >> >> thank you for clarification. Yes, please add this to the manual. We >> bought those TwinRX for some phase-coherent LTE signal reception, and now >> they seem to be not useful at all (without effort spent in sample rate >> conversion in post-processing etc.) >> >> I'm still wondering about the master clock rate though: I tried the >> benchmark with the following settings: ./benchmark_rate --args >> "master_clock_rate=200e6" --rx_subdev A:0 --rx_rate 10e6 >> The TwinRX is mounted on slot A and a CBX-120 is mounted on slot B. I >> simply wanted a streaming test on the first TwinRX channel. >> During device initialization I get the following warnings, see below. Can >> you please comment on them? >> >> [INFO] [0/DUC_1] Initializing block control (NOC ID: 0xD0C0000000000000) >> [WARNING] [X300] Cannot update master clock rate! X300 Series does not >> allow changing the clock rate during runtime. >> [WARNING] [X300 RADIO] Requesting invalid sampling rate from device: 200 >> MHz. Actual rate is: 100 MHz. >> Using Device: Single USRP: >> Device: X-Series Device >> Mboard 0: X310 >> RX Channel: 0 >> RX DSP: 0 >> RX Dboard: A >> RX Subdev: TwinRX RX0 >> TX Channel: 0 >> TX DSP: 0 >> TX Dboard: A >> TX Subdev: Unknown (0x0094) - 0 >> TX Channel: 1 >> TX DSP: 0 >> TX Dboard: B >> TX Subdev: CBX-120 TX >> >> [00:00:05.874991] Setting device timestamp to 0... >> ..... >> >> Cheers, >> Emanuel >> >> _______________________________________________ >> USRP-users mailing list >> USRP-users@lists.ettus.com >> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >> >
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