WARP Project Forums - Wireless Open-Access Research Platform

Your best option would be to use ChipScope Analyzer (part of the Xilinx ISE tools) to capture data in the Rx PHY. In the 802.11 ref design the Rx PHY core includes a ChipScope ILA (integrated logic analyzer) core with many Rx signals configured, including the raw IQ for the RF A interface. You can use ChipScope Analyzer with a JTAG cable to configure the ILA and capture samples. There is a ChipScope Analyzer signals config file (.cpj) in the Rx PHY pcore folder (xps_proj/pcores/wlan_phy_rx_*/mdlsrc/). You should import the cpj file into ChipScope Analyzer after connecting to the board so that Analyzer understands how to group and interpret the various signals.

Loading ChipScope traces in MATLAB is very useful. System Generator provides the xlLoadChipScopeData() function to simplify importing traces. We frequently use this flow for PHY debugging (capture waveform in hardware, save to .prn, load into Rx PHY simulation).