我尝试通过 GNUradio 操作 NI USRP-2920。首先，我输入了“uhd_usrp_probe”。结果如下。
[INFO] [UHDlinux; GNU C++ version 4.8.4; Boost_105400; UHD_3.11.0.git-208-g1da86f9c]
[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: N210r4
| | hardware: 2577
| | product: 30194
| | mac-addr: 00:80:2f:19:81:1e
| | ip-addr: 192.168.10.4
| | subnet: 255.255.255.255
| | gateway: 255.255.255.255
| | gpsdo: none
| | serial: 3077BE9
| | 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: 30733BF
| | | _____________________________________________________
| | | /
| | | | 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: -50.000 to 50.000 MHz
| | _____________________________________________________
| | /
| | | TX Dboard: A
| | | ID: WBX v3 (0x0056)
| | | Serial: 30733BF
| | | ID: WBX + Simple GDB, WBX v3 + Simple GDB, WBX v4 + Simple GDB, WBX-120 + Simple GDB (0x004f)
| | | Serial: F603D5
| | | _____________________________________________________
| | | /
| | | | 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
接下来，我在 GNURadio 中运行 FM 收音机。结果如下。
[RuntimeError: LookupError: KeyError: No devices found for ----->
Device Address:
192.168.10.4:
\[ERROR\] \[UHD\] Device discovery error: unknown key format: 192.168.10.4
\[ERROR\] \[UHD\] Device discovery error: unknown key format: 192.168.10.4
\[ERROR\] \[UHD\] Device discovery error: unknown key format: 192.168.10.4][1]
我无法理解这个原因。你能告诉我任何建议吗？谢谢你。