Patent ID: 6681360
Filing Date: 2004-01-20
Classification: G01R

Abstract:
A fault detection method for an electronic circuit comprising control inputs, data inputs associated with the control inputs, and at least one output storing the state of a data input as a function of a state of control signals applied to the control inputs, the method comprising:providing a plurality of logic gates each having first and second inputs and an output and connecting each output to a respective control input, each first input to a respective control signal, and each second input to a test signal; applying a control signal to a predetermined control input via a respective logic gate and a data signal to the associated data input to set the output to a start state; inhibiting the predetermined control input by applying the test signal to the respective logic gate connected thereto and applying a data signal to the data input associated with the predetermined control input to modify an output state with respect to the start state; and observing the output to deduce sticking of the predetermined control input based upon a change of state of the output.