Crystal oscillator clock calibration method, device, equipment and medium

Abstract

The invention provides a crystal oscillator clock calibration method, device, equipment and medium, and is applied to terminal equipment, the method comprises the following steps: controlling a first crystal oscillator clock source and a second crystal oscillator clock source of the terminal equipment to generate clock calibration once every transition state calibration period in a switching period of switching from a standard mode to a low power consumption mode, and after switching to the low-power-consumption mode, controlling a first crystal oscillator clock source and a second crystal oscillator clock source of the terminal equipment to perform clock calibration once every stable state calibration period, wherein the stable state calibration period is greater than the transition state calibration period, and the power consumption of the standard mode is greater than the power consumption of the low power consumption mode. According to the method and the device, the terminal equipment is respectively calibrated in the switching time period when the standard mode is switched to the low-power-consumption mode or after being switched to the low-power-consumption mode, and different calibration modes are adopted, so that clock skew increase caused by a single-strategy calibration mode is avoided, and the operation performance of the terminal equipment is improved.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a crystal oscillator clock calibration method, device, equipment and medium. Background technique [0002] Terminal equipment can include two working modes, namely normal mode and low power consumption mode. In normal mode, continuous data service transmission can be performed, and in low power consumption mode, a small amount of data can be sent and received periodically. In low power consumption mode, when not sending and receiving data, you can turn off the sending and receiving working clock to save power consumption, and switch to the 32K crystal oscillator clock source; when sending and receiving data, turn on the sending and receiving working clock, and switch to the sending and receiving working clock source. However, there is a deviation between the two clock sources, and the temperature characteristics of the two clock sources are different, and the...

AI Technical Summary

Problems solved by technology

However, there is a deviation between the two clock sources, and the temperature characteristics of the two clock sources are different, and they will change with the change of temperature. When the timing of calibration is not suitable, a large deviation will occur, resulting in a There is a time deviation, which affects the system's transceiver performance

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