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== WARP Radio User I/O ==

[[Image(HardwareUsersGuides/RadioBoard_v1.4/Images:Radio_Board_UserIO.jpg)]]

Three LEDs are tied to daughtercard pins. These LEDs are controlled by the user design in the FPGA. By default (i.e. if you use the standard radio controller and radio bridge cores), these LEDs are mapped as follows:

||'''Color'''||'''Component'''||'''Default Function'''||
||Red||D2||Glows when radio PLL is not locked to reference||
||Yellow||D3||Glows when radio receiver is enabled||
||Green||D4||Glows when radio transmitter is enabled||