The Aveksha logo.Photograph of the Telos Debug Board (TDB), connected to a Telos Rev B mote.

Aveksha is a hardware-software approach for non-intrusively tracing and profiling sensor network nodes. It is particularly useful for in-field monitoring and debugging of sensor network applications. The key is to exploit the capabilities of the JTAG interface present on the sensor nodes application processor, to rapidly poll the processors state and create a trace of events. The trace is augmented with energy reading that can be correlated to the events. The hardware prototype we have created is the Telos Debug Board (TDB). This board is capable of interfacing with the JTAG port on a Telos (Rev B) mote. It can poll a watchpoint buffer or PC register of the target processor, while at the same time taking energy readings of the mote.

Code

The source is freely available. It is licensed under the Apache License, Version 2.0.

Publications

Best Paper Award: Matthew Tancreti, Mohammad Hossain, Saurabh Bagchi, and Vijay Raghunathan. Aveksha: A Hardware-Software Approach for Non-intrusive Tracing and Profiling of Wireless Embedded Systems. In 9th ACM Conference on Embedded Networked Sensor Systems (SenSys), 14 pages, Seattle, Washington, November 1-4, 2011. (Acceptance rate: 24/123 = 19.5%) [ Paper ] [ Presentation ]

Matthew Tancreti, Mohammad Hossain, Saurabh Bagchi, and Vijay Raghunathan.
Demo Abstract: Aveksha - A Hardware-Software Approach for Non-intrusive Tracing and Profiling of Wireless Embedded Systems. In 9th ACM Conference on Embedded Networked Sensor Systems (SenSys), 2 pages, Seattle, Washington, November 1-4, 2011.
[ Demo Abstract ] [ Poster ]