This is the way I like to use WARPLab with the WARPv3 board. Checkout the WARP website for more info on WARP.
Download the latest version of WARPLab from here. Follow their instructions to get the WARPLab environment set up as normal. This mostly involves connecting your WARP board via ethernet, putting the binary image on the SD card, setting up the static IP, and running the wl_setup.m in the M_Code_Reference folder in the WARPLab files.
Download this repo. Put the WARP.m in the folder of your project that uses WARP or in any folder that is in the Matlab path. Then proceed to use the class to setup and handle all the transmitting through your WARP board.
If you already are using git with your project, you can use this as a submodule. In the main directory of your project, run
git submodule add https://github.com/ctarver/WARPLab-Matlab-Wrapper.git
git submodule update --init --recursive
This repo should show up in your project. Then just commit the new submodule to your project like you would commit anything. To use the class, you still need to add the WARP.m to your Matlab path.
Initialize with:
board = WARP(params);
The 'params' stuct needs to contain the following:
params.nBoards: Number of boards. Currently, I only use 1 board, so I haven't fully set this up for more boards.
params.RF_port: "A2B" sets RF A as the TX and RF B as RX. "B2A" does the opposite.
To send something through the WARP board, simply use the transmit method, rxData = board.transmit(txData). This assumes that we are doing loopback. It'll therefore try to sync the samples and the phase of the rxData to the txData.
Checkout the example.m to see more.
There are various settings that are set up in the class constructor. These include gain and channel settings. Set these up for your purposes then just run with it.
% RX variables
obj.channels.RX = 6;
obj.gains.RxGainRF = 1; % Rx RF Gain in [1:3] (ignored if USE_AGC is true)
obj.gains.RxGainBB = 20; % Rx Baseband Gain in [0:31] (ignored if USE_AGC is true)
obj.filters.RX_LPF = 3; % [0,1,2,3] for approx ![7.5,9.5,14,18]MHz corner
obj.filters.RX_LPFFine = 2; % Must be integer in [0,1,2,3,4,5] for [90,95,100,105,110]% scaling to LPF corner frequency
obj.filters.RX_HPF = 0; % Must be 0 (HPF corner of 100 Hz) or 1 (default; HPF corner of 30 kHz) This filter setting is only used when RXHP is 'disable' (ie 0)
obj.filters.RX_HP = 'disable'; % (boolean MODE) MODE: true enables RXHP on the node when in manual gain control false disables RXHP on the node when in manual gain control
% TX variables
obj.channels.TX = 6;
obj.gains.TxGainBB = 3; % [0,1,2,3] for approx ![-5, -3, -1.5, 0]dB baseband gain
obj.gains.TXGainRF = 55; % [0:63] for approx [0:31]dB RF gain
obj.filters.TX_LPF = 1; % [1,2,3] for approx [12,18,24]MHz corner frequencies ([24,36,48]MHz bandwidths)