Patent ID: 9015528
Filing Date: 2015-04-21
Classification: G01R,G06F

Abstract:
1. A method for online testing pipeline systems, said pipeline system comprising a succession of stages separated by buffers, each buffer being associated with an idle signal, or valid=not idle signal, and/or at least one status bit, comprising: a) detecting values of the idle signal and/or the corresponding status bits indicating the availability of a cycle or the abrupt interruption of the flow of operations in a pipeline, and indicating that an operation (O b) maintaining the state of the buffer in order to allow said valid operation (O c) re-executing, during the unused cycle, the valid operation (O d) memorizing, at the output of the pipeline, the results that correspond to the first version (O′ e) comparing the results obtained at the output of the pipeline, which results correspond to the first version (O′