WARP Project Forums - Wireless Open-Access Research Platform

For receptions, there isn't a way to reset the OFDM PHY Rx without also resetting the DSSS PHY Rx. So, the best way to "disable" the OFDM PHY Rx is to raise the packet detection threshold such that no received waveform ever causes the PHY to start running. To do that, you can modify this line to be the following:

wlan_phy_rx_pktDet_autoCorr_ofdm_cfg(0xFF, 0x3FFF, 0xF, 0x3F);

Note: that link is to the location of the line of code in the just-released v1.7.0 version of the design. In the previous version of the design, v1.6.3, that line was located here.

To disable transmissions, use a CPU_HIGH project that isn't going to transmit anything. There are a few ways to do this, but the easiest might be to use the STA design and prevent it from doing an active scan and joining a BSS at boot. You can do this by raising the left-most DIP switch in the User I/O section of the w3 board. You can alternatively make the change in C by changing the access_point_ssid that is joined at boot to an empty string.