Hi All,
I am using Ettus B210 for a 5G test bench project. It is not showing proper
output waveforms for Terminal DFT/FFT testing.
Also, when I use USRP B210 as OAI gNB, I am seeing few "U" and "L". What could
be reason for this performance issue?
My setup is:
HOST: Intel i7, 8 core, 8GB Ram
* Ubuntu 18.04 LTS, Low latency kernel 4.15.0
* UHD 4.3.0
* USRP B210 with LP0965 Antenna, USB 3.0
* Operating in 3.6192 GHz with 46.080000MSps(TX/RX)
Kindly help me.
Regards,
Anil
[Ltts.com]
L&T Technology Services Ltd
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admins@MYTSP00192:/usr/local/lib/uhd/examples$
admins@MYTSP00192:/usr/local/lib/uhd/examples$ uhd_usrp_probe
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.3.0.HEAD-0-g1f8fd345
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
_____________________________________________________
/
| Device: B-Series Device
| _____________________________________________________
| /
| | Mboard: B210
| | serial: 3129021
| | name: MyB210
| | product: 2
| | revision: 4
| | FW Version: 8.0
| | FPGA Version: 16.0
| |
| | Time sources: none, internal, external, gpsdo
| | Clock sources: internal, external, gpsdo
| | Sensors: ref_locked
| | _____________________________________________________
| | /
| | | RX DSP: 0
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | RX DSP: 1
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | RX Dboard: A
| | | _____________________________________________________
| | | /
| | | | RX Frontend: A
| | | | Name: FE-RX2
| | | | Antennas: TX/RX, RX2
| | | | Sensors: temp, rssi, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | RX Frontend: B
| | | | Name: FE-RX1
| | | | Antennas: TX/RX, RX2
| | | | Sensors: temp, rssi, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | RX Codec: A
| | | | Name: B210 RX dual ADC
| | | | Gain Elements: None
| | _____________________________________________________
| | /
| | | TX DSP: 0
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | TX DSP: 1
| | |
| | | Freq range: -8.000 to 8.000 MHz
| | _____________________________________________________
| | /
| | | TX Dboard: A
| | | _____________________________________________________
| | | /
| | | | TX Frontend: A
| | | | Name: FE-TX2
| | | | Antennas: TX/RX
| | | | Sensors: temp, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 89.8 step 0.2 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | TX Frontend: B
| | | | Name: FE-TX1
| | | | Antennas: TX/RX
| | | | Sensors: temp, lo_locked
| | | | Freq range: 50.000 to 6000.000 MHz
| | | | Gain range PGA: 0.0 to 89.8 step 0.2 dB
| | | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz
| | | | Connection Type: IQ
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | TX Codec: A
| | | | Name: B210 TX dual DAC
| | | | Gain Elements: None
admins@MYTSP00192:/usr/local/lib/uhd/examples$ uhd_find_devices
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.3.0.HEAD-0-g1f8fd345
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
serial: 3129021
name: MyB210
product: B210
type: b200
admins@MYTSP00192:/usr/local/lib/uhd/examples$ ./benchmark_rate --rx_rate 10e6
--tx_rate 10e6
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.3.0.HEAD-0-g1f8fd345
[00:00:00.000717] Creating the usrp device with: ...
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B210
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX2
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: FE-RX1
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX2
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: FE-TX1
[00:00:02.198928523] Setting device timestamp to 0...
[INFO] [B200] Asking for clock rate 40.000000 MHz...
[INFO] [B200] Actually got clock rate 40.000000 MHz.
[00:00:02.590436745] Testing receive rate 10.000000 Msps on 1 channels
Setting TX spp to 2040
[00:00:02.612475059] Testing transmit rate 10.000000 Msps on 1 channels
UUUO[00:00:12.619242716] Benchmark complete.
Benchmark rate summary:
Num received samples: 100148584
Num dropped samples: 71364
Num overruns detected: 1
Num transmitted samples: 99974280
Num sequence errors (Tx): 0
Num sequence errors (Rx): 0
Num underruns detected: 3
Num late commands: 0
Num timeouts (Tx): 0
Num timeouts (Rx): 0
Done!
admins@MYTSP00192:/usr/local/lib/uhd/examples$ sudo ./rx_samples_to_file --freq
98e6 --rate 5e6 --gain 20 --duration 10 usrp_samples.dat
[sudo] password for admins:
Creating the usrp device with: ...
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.3.0.HEAD-0-g1f8fd345
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B210
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX2
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: FE-RX1
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX2
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: FE-TX1
Setting RX Rate: 5.000000 Msps...
[INFO] [B200] Asking for clock rate 40.000000 MHz...
[INFO] [B200] Actually got clock rate 40.000000 MHz.
Actual RX Rate: 5.000000 Msps...
Setting RX Freq: 98.000000 MHz...
Setting RX LO Offset: 0.000000 MHz...
Actual RX Freq: 98.000000 MHz...
Setting RX Gain: 20.000000 dB...
Actual RX Gain: 20.000000 dB...
Waiting for "lo_locked": ++++++++++ locked.
Press Ctrl + C to stop streaming...
Done!
admins@MYTSP00192:/usr/local/lib/uhd/examples$ ls -al usrp_samples.dat
-rw-r--r-- 1 root root 200000000 Oct 30 10:06 usrp_samples.dat
admins@MYTSP00192:/usr/local/lib/uhd/examples$ sudo ./tx_samples_from_file
--freq 915e6 --rate 5e6 --gain 10 usrp_samples.dat
Creating the usrp device with: ...
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.3.0.HEAD-0-g1f8fd345
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B210
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX2
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: FE-RX1
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX2
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: FE-TX1
Setting TX Rate: 5.000000 Msps...
[INFO] [B200] Asking for clock rate 40.000000 MHz...
[INFO] [B200] Actually got clock rate 40.000000 MHz.
Actual TX Rate: 5.000000 Msps...
Setting TX Freq: 915.000000 MHz...
Setting TX LO Offset: 0.000000 MHz...
Actual TX Freq: 915.000000 MHz...
Setting TX Gain: 10.000000 dB...
Actual TX Gain: 10.000000 dB...
Checking TX: LO: locked ...
Done!
Uadmins@MYTSP00192:/usr/local/lib/uhd/examples$ sudo ./rx_ascii_art_dft --freq
98e6 --rate 5e6 --gain 20 --bw 5e6 --ref-lvl -30
Creating the usrp device with: ...
[INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501;
UHD_4.3.0.HEAD-0-g1f8fd345
[INFO] [B200] Detected Device: B210
[INFO] [B200] Operating over USB 3.
[INFO] [B200] Initialize CODEC control...
[INFO] [B200] Initialize Radio control...
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'.
[INFO] [B200] Asking for clock rate 16.000000 MHz...
[INFO] [B200] Actually got clock rate 16.000000 MHz.
Using Device: Single USRP:
Device: B-Series Device
Mboard 0: B210
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: FE-RX2
RX Channel: 1
RX DSP: 1
RX Dboard: A
RX Subdev: FE-RX1
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: FE-TX2
TX Channel: 1
TX DSP: 1
TX Dboard: A
TX Subdev: FE-TX1
Setting RX Rate: 5.000000 Msps...
[INFO] [B200] Asking for clock rate 40.000000 MHz...
[INFO] [B200] Actually got clock rate 40.000000 MHz.
Actual RX Rate: 5.000000 Msps...
Setting RX Freq: 98.000000 MHz...
Actual RX Freq: 98.000000 MHz...
Setting RX Gain: 20.000000 dB...
Actual RX Gain: 20.000000 dB...
Setting RX Bandwidth: 5.000000 MHz...
Actual RX Bandwidth: 5.000000 MHz...
Checking RX: LO: locked ...
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