Boundary Scan for Enhanced Diagnostics Navy SBIR FY2012.1 Sol No.: Navy SBIR FY2012.1 Topic No.: N121-021 Topic Title: Boundary Scan for Enhanced Diagnostics Proposal No.: N121-021-0200 Firm: Physical Optics Corporation Applied Technologies Division 1845 W. 205th Street Torrance, California 90501-1510 Contact: Mark Littlefield Phone: (310) 320-3088 Web Site: www.poc.com Abstract: To address the Navy's need for enhanced weapons replaceable assembly (WRA) diagnostics at the Organizational maintenance level, Physical Optics Corporation (POC) proposes to develop a new hardware/software system, Boundary Scan Enhanced Diagnostics (BSED). This proposed ruggedized system will utilize a combination of commercial off-the-shelf (COTS) and novel POC technologies to harness boundary scan techniques to existing functional built-in test (BIT) for vastly improved avionics system diagnostics to reduce WRA failure ambiguity to near 0%. The innovation in BSED is the system's ability to use Joint Test Action Group (JTAG)-based boundary testing to collect information about physical faults at the component and trace levels for application to a system-level diagnostic function, thus increasing the likelihood of isolating a failed WRA beyond the point that traditional functional BIT can reach. In Phase I POC will investigate the electronic systems in use by the Navy and demonstrate the feasibility of BSED by utilizing commercially available hardware and a combination of commercial and custom software libraries to produce fault data compatible with Navy test equipment. In Phase II, POC plans to build and demonstrate a fully functional prototype system including a boundary scan controller device and associated cabling for a target Navy system. Benefits: The Navy suffers from difficulty in identifying faulty WRAs, which results in needless change-outs and a large number of no-fault-found (NFF) results at Intermediate Level maintenance. The capabilities that POC's BSED system can provide have the potential to save millions of dollars a year in repair costs in addition to significantly increasing aircraft availability and optimizing spares management. In addition to the direct savings to the Navy that such a capability could bring, the introduction of an architecture for enhancing BIT with a system-wide boundary scan, and the availability of a product line to provide this capability, would be of great interest to the embedded computing community as a whole. Return