Devin, I tried running the exact sequence that you did, and it worked fine (X310, UBX). Are you compiling UHD from source? If yes, can you please first enable full logging (-DUHD_LOG_MIN_LEVEL=trace) and then produce a full log (with UHD_LOG_LEVEL=trace environment variable, and/or UHD_LOG_CONSOLE_LEVEL=trace environment variable depending on your config).
Side note -- I'm happy you're using this API, and you seem to have gotten pretty far. Kudos! --M On Fri, Apr 23, 2021 at 7:09 PM Devin Kelly <[email protected]> wrote: > Hello, > > I'm trying to calibrate the TX power for a USRP X310 using a Keysight > Field Fox N9952B. > > I wrote a class for the field fox that subclasses VISADevice. It seems to > get the numbers from the FF fox fine. > > I run the calibration and it seems to work just fine: > > ./uhd_power_cal.py --args type=x300 -d tx --meas-dev visa --antenna 'TX/RX' > -o 'import=field_fox' -o 'visa_query=USB0::MY_INSTRUMENT::INSTR' > > === Detecting USRP... > === Measurement direction: tx > === Initializing measurement device... > Loading external module: field_fox > /usr/local/lib/python3.6/site-packages/gpib_ctypes/gpib/gpib.py:54: > UserWarning: GPIB library not found. Please manually load it using > _load_lib(filename). All GPIB functions will raise OSError until the library > is manually loaded. > warnings.warn(message) > Loading external module: field_fox > Found VISA device: Keysight Field Fox N9952B > === Initializing port connector... > === Initializing USRP calibration object... > === Detected USRP type: X310 > === Calibrating for channels: 0 > === Calibrating for antennas: TX/RX > === Requested sampling rate: 5.0 Msps, actual rate: 5.0 Msps > === Launching calibration... > === Using USRP LO offset: 10.00 MHz > === Running calibration for channel 0, antenna TX/RX. > [tx] Connect your signal generator to device channel 0, antenna TX/RX. Then, > hit Enter. > [X310] Switching to channel 0, antenna TX/RX. > [WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping. > > [WARNING] [CAL::DATABASE] Calibration data already exists for key: > `x3xx_pwr_generic_tx_tx+rx' serial: `311A8A8#0'. Backing up to: > "/home/lb/.local/share/uhd/cal/x3xx_pwr_generic_tx_tx+rx_311A8A8#0.cal.1619197435" > > > > However, when I try to use the Power API I run into problems: > > ./tx_waveforms --rate 1e6 --freq 900e6 --wave-type SINE --wave-freq 10e3 > --power 10 --args='type=x300,serial=XXXXXXX' --channels 0 > > Creating the usrp device with: type=x300,serial=XXXXXX... > Using Device: Single USRP: > Device: X-Series Device > Mboard 0: X310 > RX Channel: 0 > RX DSP: 0 > RX Dboard: A > RX Subdev: UBX RX > RX Channel: 1 > RX DSP: 1 > RX Dboard: B > RX Subdev: UBX RX > TX Channel: 0 > TX DSP: 0 > TX Dboard: A > TX Subdev: UBX TX > TX Channel: 1 > TX DSP: 1 > TX Dboard: B > TX Subdev: UBX TX > > Setting TX Rate: 1.000000 Msps... > Actual TX Rate: 1.000000 Msps... > > Setting TX Freq: 900.000000 MHz... > Setting TX LO Offset: 0.000000 MHz... > Actual TX Freq: 900.000000 MHz... > > ERROR: USRP does not have a reference power API on channel 0! > > > > What am I not doing right? All my cal files are > in ~/.local/share/uhd/cal/ > > The documentation (link <https://files.ettus.com/manual/page_power.html>) > talks about table storage options (hard coded, eeprom, local files) but it > doesn't discuss how to configure the UHD to use any of those options. I > tried looking at the documentation for multi_usrp class too (link > <https://files.ettus.com/manual/classuhd_1_1usrp_1_1multi__usrp.html#af5384b36f4fe1f8f90b41d8632c85ada>) > without any sucess. > > Devin > _______________________________________________ > USRP-users mailing list -- [email protected] > To unsubscribe send an email to [email protected] >
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