ifconfig eth0 192.168.10.1
ping
192.168.10.2 (此时 USRP N210 应当有所反应，不然的话，断电查看网络连接情况）
2、安装宿主机所需的 UHD （基于 UDP)：
git clone git://code.ettus.com/ettus/uhd.git
cd <uhd-path>/host
mkdir build
cd build
cmake ../
make
make test
sudo make install
uhd_find_devices
3、如若 uhd_find_devices 给出如下错误信息，这便表明该 USRP N210 需对其 Firmware 升级：
Warning:
Ignoring discovered device
Expected protocol compatibility number 8, but got 7:
The firmware build is not compatible with the host code build.
No UHD Devices Found
4、下载最新的固件并安装。
比如从如下站点
http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/
便可下载：UHD-images-002.20110122035832.cd5631f-Linux.deb
5、烧结固件（firmware）及 fpga image 映像文件:
./usrp_n2xx_net_burner.py
--ip=192.168.10.2 --fpga
/home/raullen/Desktop/UHD-images-002.20110122035832.cd5631f-Linux/share/uhd/images/usrp_n210_fpga.bin
./usrp_n2xx_net_burner.py --ip=192.168.10.2 --fw
/home/raullen/Desktop/UHD-images-002.20110122035832.cd5631f-Linux/share/uhd/images/usrp_n2xx_fw.bin
6、uhd_find_devices
linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.20110217015719.e11ced6
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
type: usrp2
addr: 192.168.10.2
name:
serial: xxxxxxxxxx
7、uhd_usrp_probe
linux; GNU C++ version 4.4.3; Boost_104000; UHD_003.20110217015719.e11ced6
Target recv sock buff size: 50000000 bytes
Actual recv sock buff size: 131071 bytes
Warning:
The recv buffer could not be resized sufficiently.
See the transport application notes on buffer resizing.
Please run: sudo sysctl -w net.core.rmem_max=50000000
mboard0 MIMO master
_____________________________________________________
/
| Device: USRP2/N Series device
| _____________________________________________________
| /
| | Mboard: USRP-N210 mboard
| | rev: 2561
| | mac-addr: a0:36:fa:25:31:64
| | ip-addr: 192.168.10.2
| | serial: xxxxxxxxxx
| | _____________________________________________________
| | /
| | | RX DSP: USRP-N210 ddc0
| | | Codec Rate: 100.000000 Msps
| | _____________________________________________________
| | /
| | | TX DSP: USRP-N210 duc0
| | | Codec Rate: 100.000000 Msps
| | _____________________________________________________
| | /
| | | RX Dboard: USRP-N210 dboard (rx unit)
| | | _____________________________________________________
| | | /
| | | | RX Subdev: RFX900 (0x0025)
| | | | Antennas: TX/RX, RX2
| | | | Freq range: 750.000 to 1050.000 Mhz
| | | | Gain range PGA0: 0.0 to 70.0 step 0.0 dB
| | | | Connection Type: c
| | | | Uses LO offset: No
| | | _____________________________________________________
| | | /
| | | | RX Codec: USRP-N210 adc - ads62p44
| | | | Gain range digital: 0.0 to 6.0 step 0.5 dB
| | | | Gain range digital-fine: 0.0 to 0.5 step 0.1 dB
| | _____________________________________________________
| | /
| | | TX Dboard: USRP-N210 dboard (tx unit)
| | | _____________________________________________________
| | | /
| | | | TX Subdev: RFX900 (0x0029)
| | | | Antennas: TX/RX
| | | | Freq range: 750.000 to 1050.000 Mhz
| | | | Gain Elements: None
| | | | Connection Type: C
| | | | Uses LO offset: Yes
| | | _____________________________________________________
| | | /
| | | | TX Codec: USRP-N210 dac - ad9777
| | | | Gain Elements: None
8、标识成功！！！此时，便可观察到 LED 灯在闪烁：
LED A: transmitting
LED B: mimo cable link
LED C: receiving
LED D: firmware loaded
LED E: reference lock
LED F: CPLD loaded
9. 在 “/home/raullen/Desktop/uhd/host/build/examples”中有一些有趣的历程。它们可以被用来测试 USRP N210 的功能，诸如 “./latency_test”便可提供如下信息：
Actual TX Rate: 25.000000 Msps...
Actual RX Rate: 25.000000 Msps...
ACK 1000, UNDERFLOW 0, TIME_ERR 0, other 0
在此略感不便的是 "find_usrps" 和 "usrp2_fft.py" 皆涉及 USRP2 的经典 API，这些同 UHD 设备不兼用。
参阅资料：
