Method and device for automatically adjusting clock frequency of system in real time

Abstract

The invention belongs to the field of integrated circuits and in particular relates to a method and a device for automatically adjusting the clock frequency or the power supply voltage of a processor system in real time. The method realizes automatic and real-time adjustment of the clock frequency or the power supply voltage of the processor system by a matching step, a judging step and an adjusting step. In the running process of a processor, the clock frequency or the power supply voltage of the processor system is automatically adjusted in real time, so that the processor runs with an optimal clock frequency or an optimal power supply voltage in real time. Therefore, normal running of the system is ensured and the power consumption of the processor can be effectively lowered.

Description

technical field [0001] The invention belongs to the field of integrated circuits, in particular to a method and device for automatically adjusting the clock frequency of a processor system in real time. Background technique [0002] Today, with the vigorous development of processor products, performance and power consumption have become important indicators for people to measure the quality of products, especially for handheld devices. Therefore, designers use various advanced technologies to design processors to improve its performance. However, with the improvement of processor performance, its power consumption also increases significantly, and the battery life of the system operating at peak performance is shortened sharply. Greater progress has been made, but still cannot keep up with the rapidly increasing power demands of electronics. [0003] In order to reduce the power consumption of the processor, designers have adopted various methods to reduce the peak power c...

AI Technical Summary

Problems solved by technology

This invention needs to load audio / video data segment and carry out storage, decoding etc., and the method realization speed with software is relatively slow, can't adjust in real time, simultaneously adjustment process has seriously increased processor load, and the present invention fully adopts hardware realization There is an essential difference

[0009] From the above analysis, it can be seen that the existing inventions and technologies all require software support, the adjustment speed is relatively slow, and it is difficult to achieve real-time adjustment

[0010] The specific method of how to adjust the processor clock frequency or supply voltage has been fully disclosed in the prior art, but how to fully use hardware to realize real-time detection to determine whether adjustment is necessary has not yet been invented.

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