Wipro Limited
Method and system for clock synchronization based on time based control

Abstract:

A method and system for clock synchronization in an electronic device based on time based control is disclosed. The method includes comparing a current value of a cumulative phase difference between a signal generated by a device clock and a reference signal, with a reset threshold. The method further includes generating a control value, when the current value is greater than the reset threshold. Generating the control value includes computing a startup correction value based on a time lapsed after reset of the device clock, a dynamic correction value based on an accuracy factor, a clock constant, and a comparison of a current phase difference between with a high error threshold, and computing the control value based on the startup correction value, the dynamic correction value, and the current value of the cumulative phase difference. The method includes adjusting a frequency of the device clock based on the control value.