0x00 概览
LimeSDR部分特性： USB 3.0 ； 4 x Tx 发射天线接口 6 x Rx 接收天线接口；
可用于Wi-Fi, GSM, UMTS, LTE, LoRa, Bluetooth, Zigbee, RFID等开发测试环境中。
RTL电视棒、HackRF、BladeRF、USRP、LimeSDR参数对比表：
HackRF One的价格，性能参数却能跟BladeRF甚至USRP媲美！
LimeSDR核心组件：
先上几张特写：
主板长10cm，算上USB接口11.5cm：
主板宽5.7cm:
相对于HackRF、BladeRF、USRP这三款主流SDR硬件（USRP mini除外），体积已经很小巧了。LimeSDR其体积实测只有一个iPhone5s的体积大小！
当插上USB供电后，除了上图显示的两颗绿色LED灯，还有一颗一闪一闪的红色LED灯也在工作。
接下来将分一键快速安装和源码编译安装来使用LimeSDR硬件，推荐使用源码编译安装。
0x01 Mac OSX
1.1 搭建开发环境
Mac OSX当中强烈推荐通过Mac Port 搭建SDR环境，配合源码编译达到最佳效果。
1.通过AppStore安装Xcode https://itunes.apple.com/cn/app/xcode/id497799835?mt=12
2.下载安装 XQuartz/X11 http://xquartz.macosforge.org/landing
3.下载安装 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
完成之后便可从GayHub上clone源码并进行编译安装。
1.2 源码编译LimeSuite
git clone https://github.com/myriadrf/LimeSuite.git cd LimeSuite mkdir builddir && cd builddir cmake ../ make -j4 sudo make install
1.3 源码编译UHD驱动&&增加UHD对LimeSDR的支持
jocover基于UHD给LimeSDR开发了LimeSDR的驱动支持OpenUSRP，把LimeSDR来模拟成USRP B210来使用。
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 添加环境变量
echo 'export UHD_MODULE_PATH=/usr/lib/uhd/modules' >> ~/.bashrc
如果用的是iTerm2+zsh则执行：
echo 'export UHD_MODULE_PATH=/usr/lib/uhd/modules' >> ~/.zshrc
1.5 检测LimeSDR模拟USRP是否成功:
LimeSDR模拟成USRP B210之后最终的效果跟USRP是一样的：
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 捕获遥控信号
osmocom_fft -F -f 315e6 -s 2e6
0x02 Ubuntu
2.1 更新软件包
sudo add-apt-repository -y ppa:myriadrf/drivers sudo apt-get update
apt-cache search sdr
2.2 安装SDR常用软件：
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 安装Lime_Suite所需依赖包
#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
接下来的源码编译过程与在OSX下源码编译过程一样：
2.4 源码编译LimeSuite
git clone https://github.com/myriadrf/LimeSuite.git cd LimeSuite mkdir builddir && cd builddir cmake ../ make -j4 sudo make install
执行LimeSuiteGUI启动LimeSDR的软件图形化界面：
2.5 源码编译UHD驱动&&增加UHD对LimeSDR的支持
源码编译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 添加环境变量
echo 'export UHD_MODULE_PATH=/usr/lib/uhd/modules' >> ~/.bashrc
2.7 GNURadio使用测试
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/
