A method and device for accurately analyzing dynamic power consumption

Abstract

The embodiment of the present application provides a method and device for accurate analysis of dynamic power consumption, belonging to the technical field of integrated circuit chip design verification, specifically including: loading the circuit design into a first hardware emulator including a programmable logic array for simulation operation , read and store the external port status data of the first emulator in real time, configure the second emulator, read all the second internal data of the emulator clock by clock, and use the accumulator to reverse the signal in the comparison result The number is accumulated and counted in real time and an interrupt signal is generated when the total number of flips is greater than a preset threshold; through the processing scheme of this application, the accurate acquisition and analysis of dynamic power consumption values ​​is realized, and the peak power consumption can be accurately recorded.

Description

technical field [0001] The present application relates to the technical field of integrated circuit chip design verification, in particular to a method and device for accurately analyzing dynamic power consumption. Background technique [0002] Power consumption in a circuit usually refers to the heat dissipated on components and devices, or the power consumption generated when logic gates flip. Power consumption analysis is an important function of integrated circuit computer aided design, referred to as ICCAD, also known as electronic design automation. For circuit design, users mainly pay attention to dynamic power consumption, referred to as Dynamic power, that is, the power consumption generated when the logic gate flips. [0003] When designing the verification model in the early stage, it can be considered that the frequency of flipping corresponds to power consumption. The method in the prior art is to count the inversion probability of each signal on each clock do...

AI Technical Summary

Problems solved by technology

This method of statistical dynamic power consumption not only requires a large amount of data and calculation, but also consumes a long time, and has high requirements for the selection of the CPU, which increases the economic cost.

At the same time, the accuracy of this statistical method is not high, and the power consumption value under each clock signal cannot be accurately counted, and the peak power consumption cannot be further recorded.

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