Embedded system power consumption estimation method based on hardware performance counter
An embedded system and hardware performance technology, applied in energy-saving computing, hardware monitoring, climate sustainability, etc.
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[0053] Such as figure 1 As shown, figure 1 It is a flow chart for establishing the system power consumption model in the present invention. This embodiment uses the single-core processor ARM Cortex-A8 commonly used in current embedded systems as the analysis object to analyze the power consumption of the ARM core part of the ARM Cortex-A8 processor; the test platform used is TI’s EVM8168 evaluation On this board, there is an INA220 power consumption monitoring chip that can monitor the voltage and current of each power supply. At the same time, the evaluation board has a 430 single-chip microcomputer, which can collect the data of the INA220 chip and output it through the serial port. In addition, the present invention selects Matlab and Linux as the test environment, and the purpose is to make full use of the advantages of Matlab in data analysis and the Linux driver of the ARM Cortex-A8 performance counter.
[0054] figure 2 Shown is the structure of the system software mod...
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