0x00 概覽
LimeSDR部分特性： USB 3.0 ； 4 x Tx 發射天線接口 6 x Rx 接收天線接口；
可用於Wi-Fi, GSM, UMTS, LTE, LoRa, Bluetooth, Zigbee, RFID等開發測試環境中。
RTL電視棒、HackRF、BladeRF、USRP、LimeSDR參數對比表：
HackRF One的價格，性能參數卻能跟BladeRF甚至USRP媲美！
LimeSDR核心組件：
先上幾張特寫：
主板長10cm，算上USB接口11.5cm：
主板寬5.7cm:
相對於HackRF、BladeRF、USRP這三款主流SDR硬件（USRP mini除外），體積已經很小巧了。LimeSDR其體積實測只有一個iPhone5s的體積大小！
當插上USB供電后，除了上圖顯示的兩顆綠色LED燈，還有一顆一閃一閃的紅色LED燈也在工作。
接下來將分一鍵快速安裝和源碼編譯安裝來使用LimeSDR硬件，推薦使用源碼編譯安裝。
0x01 Mac OSX
1.1 搭建開發環境
Mac OSX當中強烈推薦通過Mac Port 搭建SDR環境，配合源碼編譯達到最佳效果。
1.通過AppStore安裝Xcode https://itunes.apple.com/cn/app/xcode/id497799835?mt=12
2.下載安裝 XQuartz/X11 http://xquartz.macosforge.org/landing
3.下載安裝 MacPorts https://trac.macports.org/wiki/InstallingMacPorts
sudo port search sdr
sudo port install rtl-sdr hackrf bladeRF uhd gnuradio gqrx gr-osmosdr gr-fosphor
完成之后便可從GayHub上clone源碼並進行編譯安裝。
1.2 源碼編譯LimeSuite
git clone https://github.com/myriadrf/LimeSuite.git cd LimeSuite mkdir builddir && cd builddir cmake ../ make -j4 sudo make install
1.3 源碼編譯UHD驅動&&增加UHD對LimeSDR的支持
jocover基於UHD給LimeSDR開發了LimeSDR的驅動支持OpenUSRP，把LimeSDR來模擬成USRP B210來使用。
git clone https://github.com/EttusResearch/uhd.git cd uhd/host/lib/usrp git clone https://github.com/jocover/OpenUSRP.git echo "INCLUDE_SUBDIRECTORY(OpenUSRP)">>CMakeLists.txt mkdir build && cd build cmake .. make -j4 sudo make install
1.4 添加環境變量
echo 'export UHD_MODULE_PATH=/usr/lib/uhd/modules' >> ~/.bashrc
如果用的是iTerm2+zsh則執行：
echo 'export UHD_MODULE_PATH=/usr/lib/uhd/modules' >> ~/.zshrc
1.5 檢測LimeSDR模擬USRP是否成功:
LimeSDR模擬成USRP B210之后最終的效果跟USRP是一樣的：
uhd_find_devices
uhd_usrp_probe Mac OS; Clang version 8.1.0 (clang-802.0.38); Boost_105900; UHD_003.010.001.001-MacPorts-Release Using OpenUSRP [WARNING] Gateware version mismatch! Expected gateware version 2, revision 8 But found version 2, revision 6 Follow the FW and FPGA upgrade instructions: http://wiki.myriadrf.org/Lime_Suite#Flashing_images Or run update on the command line: LimeUtil --update [INFO] Estimated reference clock 30.7195 MHz [INFO] Selected reference clock 30.720 MHz [INFO] LMS7002M cache /Users/cn0xroot/.limesuite/LMS7002M_cache_values.db MCU algorithm time: 10 ms MCU Ref. clock: 30.72 MHz MCU algorithm time: 163 ms MCU algorithm time: 1 ms MCU Ref. clock: 30.72 MHz MCU algorithm time: 104 ms MCU algorithm time: 1 ms MCU Ref. clock: 30.72 MHz MCU algorithm time: 167 ms MCU algorithm time: 1 ms MCU Ref. clock: 30.72 MHz MCU algorithm time: 104 ms _____________________________________________________ / | Device: B-Series Device | _____________________________________________________ | / | | Mboard: B210 | | revision: 4 | | product: 2 | | serial: 243381F | | FW Version: 3 | | FPGA Version: 2.6 | | | | Time sources: none, internal, external | | Clock sources: internal, external | | Sensors: ref_locked | | _____________________________________________________ | | / | | | RX DSP: 0 | | | | | | Freq range: -10.000 to 10.000 MHz | | _____________________________________________________ | | / | | | RX DSP: 1 | | | | | | Freq range: -10.000 to 10.000 MHz | | _____________________________________________________ | | / | | | RX Dboard: A | | | _____________________________________________________ | | | / | | | | RX Frontend: A | | | | Name: FE-RX1 | | | | Antennas: TX/RX, RX2 | | | | Sensors: temp, lo_locked, rssi | | | | Freq range: 30.000 to 3800.000 MHz | | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB | | | | Bandwidth range: 1000000.0 to 60000000.0 step 1.0 Hz | | | | Connection Type: IQ | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | RX Frontend: B | | | | Name: FE-RX2 | | | | Antennas: TX/RX, RX2 | | | | Sensors: temp, lo_locked, rssi | | | | Freq range: 30.000 to 3800.000 MHz | | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB | | | | Bandwidth range: 1000000.0 to 60000000.0 step 1.0 Hz | | | | Connection Type: IQ | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | RX Codec: A | | | | Name: B210 RX dual ADC | | | | Gain Elements: None | | _____________________________________________________ | | / | | | TX DSP: 0 | | | | | | Freq range: -10.000 to 10.000 MHz | | _____________________________________________________ | | / | | | TX DSP: 1 | | | | | | Freq range: -10.000 to 10.000 MHz | | _____________________________________________________ | | / | | | TX Dboard: A | | | _____________________________________________________ | | | / | | | | TX Frontend: A | | | | Name: FE-TX1 | | | | Antennas: TX/RX | | | | Sensors: temp, lo_locked | | | | Freq range: 30.000 to 3800.000 MHz | | | | Gain range PGA: 0.0 to 89.8 step 0.2 dB | | | | Bandwidth range: 800000.0 to 60000000.0 step 1.0 Hz | | | | Connection Type: IQ | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | TX Frontend: B | | | | Name: FE-TX2 | | | | Antennas: TX/RX | | | | Sensors: temp, lo_locked | | | | Freq range: 30.000 to 3800.000 MHz | | | | Gain range PGA: 0.0 to 89.8 step 0.2 dB | | | | Bandwidth range: 800000.0 to 60000000.0 step 1.0 Hz | | | | Connection Type: IQ | | | | Uses LO offset: No | | | _____________________________________________________ | | | / | | | | TX Codec: A | | | | Name: B210 RX dual ADC | | | | Gain Elements: None ➜ ~
1.6 捕獲遙控信號
osmocom_fft -F -f 315e6 -s 2e6
0x02 Ubuntu
2.1 更新軟件包
sudo add-apt-repository -y ppa:myriadrf/drivers sudo apt-get update
apt-cache search sdr
2.2 安裝SDR常用軟件：
sudo apt-get update sudo apt-get install git sudo apt-get install python-pip pip install --upgrade pip pip install git+https://github.com/gnuradio/pybombs.git pybombs recipes add gr-recipes git+https://github.com/gnuradio/gr-recipes.git pybombs recipes add gr-etcetera git+https://github.com/gnuradio/gr-etcetera.git pybombs prefix init /usr/local -a myprefix -R gnuradio-default pybombs install gqrx gr-osmosdr uhd
2.3 安裝Lime_Suite所需依賴包
#packages for soapysdr available at myriadrf PPA sudo add-apt-repository -y ppa:myriadrf/drivers sudo apt-get update #install core library and build dependencies sudo apt-get install git g++ cmake libsqlite3-dev #install hardware support dependencies sudo apt-get install libsoapysdr-dev libi2c-dev libusb-1.0-0-dev #install graphics dependencies sudo apt-get install libwxgtk3.0-dev freeglut3-dev
接下來的源碼編譯過程與在OSX下源碼編譯過程一樣：
2.4 源碼編譯LimeSuite
git clone https://github.com/myriadrf/LimeSuite.git cd LimeSuite mkdir builddir && cd builddir cmake ../ make -j4 sudo make install
執行LimeSuiteGUI啟動LimeSDR的軟件圖形化界面：
2.5 源碼編譯UHD驅動&&增加UHD對LimeSDR的支持
源碼編譯UHD+OpenUSRP
git clone https://github.com/EttusResearch/uhd.git cd uhd/host/lib/usrp git clone https://github.com/jocover/OpenUSRP.git echo "INCLUDE_SUBDIRECTORY(OpenUSRP)">>CMakeLists.txt cd ../../ mkdir build && cd build cmake .. make -j4 sudo make install sudo ldconfig
2.6 添加環境變量
echo 'export UHD_MODULE_PATH=/usr/lib/uhd/modules' >> ~/.bashrc
2.7 GNURadio使用測試
wget http://www.0xroot.cn/SDR/signal-record.grc gnuradio-companion signal-record.grc
0x03 Reference
https://wiki.myriadrf.org/Lime_Suite
http://linuxgizmos.com/open-source-sdr-sbc-runs-snappy-ubuntu-on-cyclone-v/
原文鏈接：https://cn0xroot.com/2017/04/12/limesdr-getting-started-quickly/