The search functionality is under construction.
The search functionality is under construction.

Preemptive System-on-Chip Test Scheduling

Erik LARSSON, Hideo FUJIWARA

  • Full Text Views

    0

  • Cite this

Summary :

In this paper, we propose a preemptive test scheduling technique (a test can be interrupted and later resumed) for core-based systems with the objective to minimize the test application time. We make use of reconfigurable core test wrappers in order to increase the flexibility in the scheduling process. The advantage with such a wrapper is that it is not limited to a single TAM (test access mechanism) bandwidth (wrapper chain configuration) at each core. We model the scheduling problem as a Bin-packing problem, and we discuss the transformation: number of TAM wires (wrapper-chains) versus test time in combination with preemption, as well as the possibilities and the limitations to achieve an optimal solution in respect to test application time. We have implemented the proposed preemptive test scheduling algorithm, and we have through experiments demonstrated its efficiency.

Publication
IEICE TRANSACTIONS on Information Vol.E87-D No.3 pp.620-629
Publication Date
2004/03/01
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section on Test and Verification of VLSI)
Category
SoC Testing

Authors

Keyword