Re: usrp n200 problem: error when running uhd_cal_tx_dc_offset

[Marcus D. Leech]

On 28/12/2022 23:55, Ali G. Dezfuli wrote:
> seems it's ok:
>
> $ uhd_usrp_probe
> [INFO] [UHD] linux; GNU C++ version 11.3.0; Boost_107400; 
> UHD_4.3.0.0-14-g1e718d9b
> [INFO] [USRP2] Opening a USRP2/N-Series device...
> [INFO] [USRP2] Current recv frame size: 1472 bytes
> [INFO] [USRP2] Current send frame size: 1472 bytes
>   _____________________________________________________
>  /
> |       Device: USRP2 / N-Series Device
> |     _____________________________________________________
> |    /
> |   |       Mboard: N200r4
> |   |   hardware: 2576
> |   |   mac-addr: 00:80:2f:0a:ce:45
> |   |   ip-addr: 192.168.20.2
> |   |   subnet: 255.255.255.255
> |   |   gateway: 255.255.255.255
> |   |   gpsdo: none
> |   |   serial: F1700B
> |   |   name: ali_01
> |   |   FW Version: 12.4
> |   |   FPGA Version: 11.1
> |   |
> |   |   Time sources:  none, external, _external_, mimo
> |   |   Clock sources: internal, external, mimo
> |   |   Sensors: mimo_locked, ref_locked
> |   | _____________________________________________________
> |   |    /
> |   |   |       RX DSP: 0
> |   |   |
> |   |   |   Freq range: -50.000 to 50.000 MHz
> |   | _____________________________________________________
> |   |    /
> |   |   |       RX DSP: 1
> |   |   |
> |   |   |   Freq range: -50.000 to 50.000 MHz
> |   | _____________________________________________________
> |   |    /
> |   |   |       RX Dboard: A
> |   |   |   ID: WBX v3, WBX v3 + Simple GDB (0x0057)
> |   |   |   Serial: EDR29PFXW
> |   |   | _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Frontend: 0
> |   |   |   |   Name: WBXv3 RX+GDB
> |   |   |   |   Antennas: TX/RX, RX2, CAL
> |   |   |   |   Sensors: lo_locked
> |   |   |   |   Freq range: 68.750 to 2200.000 MHz
> |   |   |   |   Gain range PGA0: 0.0 to 31.5 step 0.5 dB
> |   |   |   |   Bandwidth range: 40000000.0 to 40000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: IQ
> |   |   |   |   Uses LO offset: No
> |   |   | _____________________________________________________
> |   |   |    /
> |   |   |   |       RX Codec: A
> |   |   |   |   Name: ads62p44
> |   |   |   |   Gain range digital: 0.0 to 6.0 step 0.5 dB
> |   |   |   |   Gain range fine: 0.0 to 0.5 step 0.1 dB
> |   | _____________________________________________________
> |   |    /
> |   |   |       TX DSP: 0
> |   |   |
> |   |   |   Freq range: -200.000 to 200.000 MHz
> |   | _____________________________________________________
> |   |    /
> |   |   |       TX Dboard: A
> |   |   |   ID: WBX v3 (0x0056)
> |   |   |   Serial: EDR29PFXW
> |   |   |   ID: WBX + Simple GDB, WBX v3 + Simple GDB, WBX v4 + Simple 
> GDB, WBX-120 + Simple GDB (0x004f)
> |   |   |   Serial: EDR29PFGS
> |   |   | _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Frontend: 0
> |   |   |   |   Name: WBXv3 TX+GDB
> |   |   |   |   Antennas: TX/RX, CAL
> |   |   |   |   Sensors: lo_locked
> |   |   |   |   Freq range: 68.750 to 2200.000 MHz
> |   |   |   |   Gain range PGA0: 0.0 to 31.0 step 1.0 dB
> |   |   |   |   Bandwidth range: 40000000.0 to 40000000.0 step 0.0 Hz
> |   |   |   |   Connection Type: IQ
> |   |   |   |   Uses LO offset: No
> |   |   | _____________________________________________________
> |   |   |    /
> |   |   |   |       TX Codec: A
> |   |   |   |   Name: ad9777
> |   |   |   |   Gain Elements: None
You might try backing-out to UHD 4.2 or even UHD 4.1.0.5 (which is what 
is packaged with Ubuntu 22.04).

I recall (haven't found the thread on usrp-users yet) that there was a 
problem with the _cal utilities in UHD 4.3.

I'd recommend that you join the usrp-users mailng list, where more 
USRP-specific discussions take place.