Fault tolerant and fault testable hardware design
Fault tolerant and fault testable hardware design
IEEE Transactions on Computers
A Fault-Tolerant FFT Processor
IEEE Transactions on Computers
Design & analysis of fault tolerant digital systems
Design & analysis of fault tolerant digital systems
Easily Testable Iterative Logic Arrays
IEEE Transactions on Computers
Testing and diagnosis of FFT arrays
Journal of VLSI Signal Processing Systems - Special issue: algorithms and parallel VSLI architecture
On the testability of array structures for FFT computation
Journal of Electronic Testing: Theory and Applications
Time-Shared Modular Redundancy for Fault-Tolerant FFT Processors
DFT '99 Proceedings of the 14th International Symposium on Defect and Fault-Tolerance in VLSI Systems
Fault Detection in Iterative Logic Arrays
IEEE Transactions on Computers
Sign/Logarithm Arithmetic for FFT Implementation
IEEE Transactions on Computers
The Complexity of Fault Detection Problems for Combinational Logic Circuits
IEEE Transactions on Computers
Easily Testable Iterative Systems
IEEE Transactions on Computers
Testing for faults in combinational cellular logic arrays
FOCS '67 Proceedings of the 8th Annual Symposium on Switching and Automata Theory (SWAT 1967)
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In this paper, we first propose a novel design-for-testability approach based on M-testability conditions for module-level systolic fast Fourier transform (FFT) arrays. Our M-testability conditions guarantee 100% single-module-fault testability with a minimum number of test patterns. Based on this testable design, fault-tolerant approaches at the bit level and the multiply-subtract-add (MSA) module level are proposed, respectively. If the reconfiguration is performed at the bit level, then the FFTBIT network is constructed. Two types of reconfiguration schemes (Type-I FFTMSA and Type-II FFTMSA) are proposed at the MSA module level. Since both the design for testability (DFT) and the design for yield (DFY) issues are considered at the same time for all these proposed approaches, the resulting architectures are simpler as compared with previous works. The reliability of the FFT system increases significantly. The hardware overhead is low--about 12% and 1/2N for the FFTBIT network and the Type-II FFTMSA network, respectively. An experimental chip is also implemented to verify our approaches. Reliabilities and hardware overhead are also evaluated and compared with previous works.