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If you are interested in using the advanced algorithms you can contact with the ISEE Radar Team.}}
== Requirements ==
In this tutorial you will need:
* IGEP RADAR LAMBDA or IGEP RADAR EPSILON
* A computer with Ethernet or Wireless connection
= Features and demo functions =
The demo functions include some useful functionalities such:
* Configuration of the I/O
* Configuration of the DDS modulation
* Pre-start DDS modulation
* Capture of ADC samples
* Remove of DC component
* Calculation of FFT
* Basic Signal processing
== Source code ==
The software also '''includes the source of the demo functions''', so you can edit the code and add your own functionalities to fit any system. The functions that are included in the source code directory are:
radar_adc
radar_dcwindow
radar_dds
radar_fft
radar_maxfft
= First steps =
== Connect via SSH ==
To connect your computer with your IGEP Radar solution you must remember the default network connectivity:
{{#lsth:Getting started with IGEP RADAR LAMBDA|Network & Connectivity}}
To use the demo applications, you must establish a SSH connection with your IGEP Radar. This can be done via Ethernet, Wireless, USB, etc.
In this tutorial we are going to use Putty (an SSH client) over Ethernet, but you can use any program or interface that you are familiar with.
If you need help about how to install Putty and connecting via Ethernet or Wireless, now its time to jump to this articles:
* [[Using Ethernet to communicate]]
* [[Using IGEP WLAN to communicate]]
=Using the demo functions = Requirements There is a functional example script that launches the demo functions. This script captures ADC sample, starts DDS modulation, calculates the FFT and does simple signal processing, as it searches position of maximum peak of FFT. To launch this script follow these instructions: cd /home/root/radar ./demo-lambda.sh #If you are using IGEP RADAR LAMBDA or ./demo-epsilon.sh #If you are using IGEP RADAR EPSILON The script source is similar to this: <pre>#!/bin/sh # DEBUG enable "set -x"#set -x # Configure I/O./radar_init.sh # Configure DDS modulation echo 0 > /sys/class/gpio/gpio162/value./radar_dds -d /dev/spidev4.0echo 1 > /sys/class/gpio/gpio162/value # Pre-start DDS modulationecho 1 > /sys/class/gpio/gpio140/value # It captures ADC sample and starts DDS modulation. It saves samples to "adquisition.txt" file./radar_adc -d /dev/spidev4.0 > adquisition.txt # End DDS modulationecho 0 > /sys/class/gpio/gpio140/value # It adapts capured data ("adquisition.txt" file) removing DC component and selecting window of samples. It saves preprocessed sampling data to "data.txt" file./radar_dcwindow -L adquisition.txt -B 1000 -E 1700 > data.txt # It calculates FFT ./radar_fft -L data.txt -M 4 > fft.txt # It does simple signal processing ( it searches position of maximum peak of FFT )./radar_maxfft -L fft.txt </pre> When the script ends it shows you the result of the process: ./demo-lambda.sh dds config: 0E8F C000 D3C0 2050 3000 1200 6090 13 You can read and manage the exported files with: cat adquisition.txt cat fft.txt ==Source code available == The source code of all these functions is available at the same demo sofware. Check the source folder and list the files: cd /home/root/radar/source/ ls You can edit the C source code of these functions to fit your application requirements.
= See also =
*[[IGEP SDK Virtual Machine]]
*[[How_to_setup_a_cross_compiler | IGEP SDK Yocto Toolchain]]
*[[How to install Eclipse IDE]]
[[Category:IGEP Radar articles]]
