Fault Testing and Diagnosis of Sram based FBGA using Built In Self Test Architecture

A new low power LP scan based built in self test BIST technique is proposed based on weighted pseudorandom test pattern generation and reseeding. A new LP scan architecture is proposed, which supports both pseudorandom testing and deterministic BIST. During the pseudorandom testing phase, an LP weighted random test pattern generation scheme is proposed by disabling a part of scan chains. During the deterministic BIST phase, the design for testability architecture is modified slightly while short. Built in Self Test BIST is a design technique that allows a circuit to test itself .The proposed method of a built in self test BIST design for fault detection and fault diagnosis of static RAM SRAM based field programmable gate arrays FPGAs . can test both the interconnect resources wire channels and programmable switches PSs and lookup tables LUTs in the configurable logic blocks CLBs .The test pattern generator and output response analyzer are configured by CLBs in FPGAs. The target fault detection diagnosis of the proposed BIST structure are open short and delay faults in the wire channels, stuck on off faults in PSs, andstuck at 0 1 faults in LUTs. The testing process is performed by configuring the Test Pattern Generator TPG , Output Response Analyzer ORA and Block under Test BUT in each test block. Nagma. P | Ramachandran. S | Sathishkumar. E "Fault Testing and Diagnosis of Sram based FBGA using Built-In-Self-Test-Architecture" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: https://www.ijtsrd.com/papers/ijtsrd9415.pd