Method and apparatus for calibrating low frequency clock

摘要

A method and an apparatus for calibrating a low frequency clock are disclosed. The method includes: calculating a frequency of a low frequency clock in a current low frequency clock calibration; and calculating an average value of low frequency clock frequencies in n clock calibrations before the current calibration, where n is greater than 1 and is an integer; judging whether a difference between the frequency of the low frequency clock in the current low frequency clock calibration and the average value is smaller than a preset threshold for the difference; and if the difference between the frequency of the low frequency clock in the current low frequency clock calibration and the average value is smaller than the preset threshold for the difference, calculating the number of sleep cycles according to the calculated and obtained frequency of the low frequency clock in the current low frequency clock calibration.

主权项

1. A method for calibrating a low frequency clock, comprising:
calculating a frequency of a low frequency clock in a current low frequency clock calibration; calculating an average value of low frequency clock frequencies in n low frequency clock calibrations before the current low frequency clock calibration, wherein n is greater than 1 and is an integer; judging whether a difference between the frequency of the low frequency clock in the current low frequency clock calibration and the average value is smaller than a preset threshold for the difference; and calculating the number of sleep cycles according to the calculated and obtained frequency of the low frequency clock in the current low frequency clock calibration when the difference between the frequency of the low frequency clock in the current low frequency clock calibration and the average value is smaller than the preset threshold for the difference.