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30 October 2006 A boundary scan cell insertion method for mixed signal board
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The boundary scan technology can make virtual probing, which could improve the overall testability of product and provide an effective approach for PCB's automatic testing based on the bus. In this paper, a new boundary scan cell insertion algorithm is put forward. Grounded on the simplified test signal flow graph st-SFG for modeling the board, the algorithm uses a testability measure based on controllability and observability to evaluate the every node, which is defined according the distance of nodes and primary I/O. At last, an example is given to verify the algorithm. In conclusion, the algorithm in this paper solve the placement problem of boundary scan cell during the PCB automatic testing using the boundary scan buses, which has very important application value.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaomei Chen, Xiaofeng Meng, Bo Zhong, and Hong Ji "A boundary scan cell insertion method for mixed signal board", Proc. SPIE 6358, Sixth International Symposium on Instrumentation and Control Technology: Sensors, Automatic Measurement, Control, and Computer Simulation, 635827 (30 October 2006);

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