Hi, My understanding is that remote streaming is available in UHD>=4.3 via:
https://files.ettus.com/manual/page_stream.html#stream_remote However, I can not get it working using the example python scripts provided, and also programmatically via C++. I am using USRP-2974 with UHD host @ 192.168.30.1, USRP @ 192.168.30.2, and I created a secondary ethernet interface (linux) with address 192.168.30.30 on the same interface (network) as UHD host. Ultimately I want to do this with C++, but I tried it with the example “remote_rx.py” to rule out problems with my code. Can you help me figure out why this doesn’t work? Thanks, —Cy —————-Below using python scripts 1st attempt:————————————————————- cjohnson@demo:\~/ettus_repo/uhd/host/examples/python$ ./remote_rx.py --rate=200e6 --freq=1223e6 --gain=20 --dest-addr=192.168.30.30 --dest-port=54321 \[INFO\] \[UHD\] linux; GNU C++ version 11.3.0; Boost_107400; UHD_4.4.0.cjohnson-fb-sdrx-68-g02558b69 \[INFO\] \[X300\] X300 initialization sequence... \[INFO\] \[X300\] Maximum frame size: 8000 bytes. \[INFO\] \[GPS\] Found an internal GPSDO: LC_XO, Firmware Rev 0.929a \[INFO\] \[X300\] Radio 1x clock: 200 MHz Requesting sampling rate 200.0 Msps... Using sampling rate: 200.0 Msps. Requesting center frequency 1223.0 MHz... Actual center frequency: 1223.0000032784735 MHz. Requesting gain 20.0 dB... Actual gain: 20.0 dB. Selected 0 RX channels. Generating RX streamer object... \[ERROR\] \[RFNOC::LSM\] Cannot identify transport adapter 0 on route to EPID 3 Traceback (most recent call last): File "/home/cjohnson/ettus_repo/uhd/host/examples/python/./remote_rx.py", line 122, in <module> sys.exit(main()) File "/home/cjohnson/ettus_repo/uhd/host/examples/python/./remote_rx.py", line 102, in main rx_streamer = usrp.get_rx_stream(stream_args) RuntimeError: RuntimeError: Cannot identify transport adapter 0 on route to EPID 3 —————-Below using python scripts 2nd attempt:————————————————————- cjohnson@demo:\~/ettus_repo/uhd/host/examples/python$ ./remote_rx.py --rate=200e6 --freq=1223e6 --gain=20 --dest-addr=192.168.30.30 --dest-port=54321 --adapter=sfp1 \[INFO\] \[UHD\] linux; GNU C++ version 11.3.0; Boost_107400; UHD_4.4.0.cjohnson-fb-sdrx-68-g02558b69 \[INFO\] \[X300\] X300 initialization sequence... \[INFO\] \[X300\] Maximum frame size: 8000 bytes. \[INFO\] \[GPS\] Found an internal GPSDO: LC_XO, Firmware Rev 0.929a \[INFO\] \[X300\] Radio 1x clock: 200 MHz Requesting sampling rate 200.0 Msps... Using sampling rate: 200.0 Msps. Requesting center frequency 1223.0 MHz... Actual center frequency: 1223.0000032784735 MHz. Requesting gain 20.0 dB... Actual gain: 20.0 dB. Selected 0 RX channels. Generating RX streamer object... \[ERROR\] \[RFNOC::LSM\] Requested remote UDP streaming, but transport adapter sfp1 does not support it! Traceback (most recent call last): File "/home/cjohnson/ettus_repo/uhd/host/examples/python/./remote_rx.py", line 122, in <module> sys.exit(main()) File "/home/cjohnson/ettus_repo/uhd/host/examples/python/./remote_rx.py", line 102, in main rx_streamer = usrp.get_rx_stream(stream_args) RuntimeError: RuntimeError: Requested remote UDP streaming, but transport adapter sfp1 does not support it! —————-Below using c++ attempt:————————————————————- Got the following errors after setting some variables and running on the command line. Below is the code and the associated error. stream_args.args = "dest_addr=192.168.30.30"; // Gives error "Error: ValueError: Missing \`dest_port' argument for remote streaming destination!" stream_args.args = "dest_addr=192.168.30.30,dest_port=12345"; // Setup second interface on host. Gives error "\[ERROR\] \[RFNOC::LSM\] Cannot identify transport adapter 0 on route to EPID 3" stream_args.args = "adapter=sfp1,dest_addr=192.168.30.30,dest_port=12345"; // Gives error "\[ERROR\] \[RFNOC::LSM\] Requested remote UDP streaming, but transport adapter sfp1 does not support it!" —————-Configuration using probe:————————————————————- /usr/bin/uhd_usrp_probe \[INFO\] \[UHD\] linux; GNU C++ version 11.3.0; Boost_107400; UHD_4.4.0.cjohnson-fb-sdrx-68-g02558b69 \[INFO\] \[X300\] X300 initialization sequence... \[INFO\] \[X300\] Maximum frame size: 8000 bytes. \[INFO\] \[GPS\] Found an internal GPSDO: LC_XO, Firmware Rev 0.929a \[INFO\] \[X300\] Radio 1x clock: 200 MHz _____________________________________________________ / | Device: X-Series Device | _____________________________________________________ | / | | Mboard: X310 | | revision: 12 | | revision_compat: 7 | | product: 30810 | | mac-addr0: 00:80:2f:22:72:89 | | mac-addr1: 00:80:2f:22:72:8a | | gateway: 192.168.10.1 | | ip-addr0: 192.168.10.2 | | subnet0: 255.255.255.0 | | ip-addr1: 192.168.40.2 | | subnet1: 255.255.255.0 | | ip-addr2: 192.168.30.2 | | subnet2: 255.255.255.0 | | ip-addr3: 255.255.255.255 | | subnet3: 255.255.255.0 | | serial: 3166635 | | FW Version: 6.0 | | FPGA Version: 39.0 | | FPGA git hash: fffffff-dirty | | RFNoC capable: Yes | | | | Time sources: internal, external, gpsdo | | Clock sources: internal, external, gpsdo | | Sensors: gps_servo, gps_time, gps_locked, gps_gprmc, gps_gpgga, ref_locked | _____________________________________________________ | / | | RFNoC blocks on this device: | | | | \* 0/DDC#0 | | \* 0/DDC#1 | | \* 0/DUC#0 | | \* 0/DUC#1 | | \* 0/Radio#0 | | \* 0/Radio#1 | | \* 0/Replay#0 | _____________________________________________________ | / | | Static connections on this device: | | | | \* 0/SEP#0:0==>0/DUC#0:0 | | \* 0/DUC#0:0==>0/Radio#0:0 | | \* 0/Radio#0:0==>0/DDC#0:0 | | \* 0/DDC#0:0==>0/SEP#0:0 | | \* 0/Radio#0:1==>0/DDC#0:1 | | \* 0/DDC#0:1==>0/SEP#1:0 | | \* 0/SEP#2:0==>0/DUC#1:0 | | \* 0/DUC#1:0==>0/Radio#1:0 | | \* 0/Radio#1:0==>0/DDC#1:0 | | \* 0/DDC#1:0==>0/SEP#2:0 | | \* 0/Radio#1:1==>0/DDC#1:1 | | \* 0/DDC#1:1==>0/SEP#3:0 | | \* 0/SEP#4:0==>0/Replay#0:0 | | \* 0/Replay#0:0==>0/SEP#4:0 | | \* 0/SEP#5:0==>0/Replay#0:1 | | \* 0/Replay#0:1==>0/SEP#5:0 | _____________________________________________________ | / | | TX Dboard: 0/Radio#0 | | ID: UBX-TDD (0x0202) | | Serial: 3167155 | | Revision: 2 | | _____________________________________________________ | | / | | | TX Frontend: 0 | | | Name: UBX TX | | | Antennas: TX/RX, CAL | | | Sensors: lo_locked | | | Freq range: 10.000 to 6000.000 MHz | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | Connection Type: QI | | | Uses LO offset: No | _____________________________________________________ | / | | RX Dboard: 0/Radio#0 | | ID: UBX-TDD (0x0203) | | Serial: 3167155 | | Revision: 2 | | _____________________________________________________ | | / | | | RX Frontend: 0 | | | Name: UBX RX | | | Antennas: TX/RX, RX2, CAL | | | Sensors: lo_locked | | | Freq range: 10.000 to 6000.000 MHz | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | Connection Type: IQ | | | Uses LO offset: No | _____________________________________________________ | / | | TX Dboard: 0/Radio#1 | | ID: UBX-TDD (0x0202) | | Serial: 3167159 | | Revision: 2 | | _____________________________________________________ | | / | | | TX Frontend: 0 | | | Name: UBX TX | | | Antennas: TX/RX, CAL | | | Sensors: lo_locked | | | Freq range: 10.000 to 6000.000 MHz | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | Connection Type: QI | | | Uses LO offset: No | _____________________________________________________ | / | | RX Dboard: 0/Radio#1 | | ID: UBX-TDD (0x0203) | | Serial: 3167159 | | Revision: 2 | | _____________________________________________________ | | / | | | RX Frontend: 0 | | | Name: UBX RX | | | Antennas: TX/RX, RX2, CAL | | | Sensors: lo_locked | | | Freq range: 10.000 to 6000.000 MHz | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz | | | Connection Type: IQ | | | Uses LO offset: No
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