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PM Demo

Introduction

This example is used to verify the power management (PM) user-space interface, supporting operations such as querying/setting governor, profile, thermal protection threshold, clock and power switch, etc.

Code Location

• src/rtsmart/examples/mpp/sample_pm

Compilation Method

In make menuconfig, enable:

• RT-Smart UserSpace Examples Configuration

• Enable MPP examples

• Enable Build sample_pm

Then execute firmware compilation.

Running Example

cd /sdcard/app/examples/mpp
./sample_pm.elf

The program will output help information:

Usage: sample_pm func_index [opt]

Common examples:

# Query governor of domain=0
./sample_pm.elf 5 0

# Set domain=0 governor=1 (PERFORMANCE)
./sample_pm.elf 4 0 1

# Query profile of domain=0
./sample_pm.elf 7 0