Analyzing the Test Generation Problem for an Application-Oriented Test of FPGAs

  • Authors:
  • M. Renovell;J. M. Portal;P. Faure;J. Figueras;Y. Zorian

  • Affiliations:
  • -;-;-;-;-

  • Venue:
  • ETW '00 Proceedings of the IEEE European Test Workshop
  • Year:
  • 2000

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Abstract

The objective of this paper is to generate an Application-Oriented Test Procedure to be used by a FPGA user in a given application. General definitions concerning the specific problem of testing RAM-based FPGAs are first given such as the important concept of 'AC-non-redundant fault'. Using a set of circuits implemented on a XILINX 4000E, it is shown that a classical test pattern generation performed on the circuit netlist gives a low AC-non-redundant fault coverage and it is pointed out that test pattern generation performed on a FPGA representation is required. It is then demonstrated that removing most of the AC-redundant faults can significantly accelerate test pattern generation performed on the FPGA representation. Finally, a technique is proposed to even more accelerate the test pattern generation process by using a reduced FPGA description.