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I saw a video at this link http://vimeo.com/5100658 about WARP features and architecture. This video, posed two years ago, mentions the GPS and the AXIS linux SOC are installed on the back of the WARP board. However, I did not see such thing on my experimental board. Does it mean that you had ever integrated such thing into the WARP platform but removed them due to some consideration? I were excited to find the GPS attached, in that video, as it could be very helpful for me to design synchronization function.
Last edited by riveridea (2011-Mar-08 22:30:33)
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The Axis SOC was part of another PCB design (the "Backdoor Board") which connected to the FPGA Board v2.2 via headers J55A/J55B. The Rice WARP team designed the Backdoor Board for a few research projects, but the boards were never distributed (largely because Axis stopped making the Etrax 100LX MCM).
If your application requires GPS, the easiest solution would to connect a GPS module to the FPGA Board's debug header (J20). Sparkfun sells many GPS modules; anything with 3.3v digital I/O should work. Most have a UART interface, which would be straightforward to integrate with your FPGA design (using a UART core, like the one in XPS).
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