Demo abstract: Distributed debugging architecture for wireless sensor networks

Limited visibility into the global network state renders testing and debugging sensor network applications a challenging task. Existing debugging methods are often non-intrusive and require modifications of the binary image. Hardware based debugging instrumentation such as JTAG has not been widely used beyond a single node, mainly due to its relatively high cost and lack of software support for distributed debugging. This demonstration presents a novel architecture for distributed debugging of wireless sensor networks using a low-cost extension board to access the on-chip debug module of the node´s processor. Connecting several of those debug boards using a backbone network provides distributed control and monitoring of the sensor network in test.