WARP Project Forums - Wireless Open-Access Research Platform

Hi,

One of our WARP v3 nodes seems to be malfunctioning. On turning on the power, the board runs for a couple of seconds, after which the D5, D16 and D19 LEDs (which I believe are 3.7v, 1.8v and 3.3v indicators) on the board flicker and the node resets. Due to this, the FPGA is unable to load any image from the SD card because it resets before the boot up finishes.

The D20 LED (12v) is on throughout and does not flicker. We tried using other power supplies and different SD cards (which work with other WARP boards), but the issue persists. Even without a SD card, the LEDs keep flickering every few seconds or so. Any pointers on what may be going wrong?

Here is a video of the problem: https://vid.me/aWKd         

Thanks