PM Module API Manual#
Overview#
The PM module, also known as the Power Management module, is specifically designed to optimize and manage device energy consumption. For a detailed description of the PM framework, please refer to the relevant documentation in the SDK (K230_PM Framework User Guide.md). In the MicroPython environment, the PM module encapsulates the power management functions of both the CPU and KPU.
API Introduction#
The PM class is located under the mpp module, and the module internally contains two instantiated objects: cpu and kpu, which are used to manage the power consumption of the central processing unit and the neural network processor, respectively.
Example#
The following code demonstrates how to use the PM module to get the current CPU frequency, list the supported frequency list, and set the CPU frequency:
from mpp import pm
# Get the current CPU frequency
current_freq = pm.cpu.get_freq()
# Get the list of supported CPU frequencies
supported_freqs = pm.cpu.list_profiles()
# Set the CPU frequency to the specified configuration
pm.cpu.set_profile(1)
get_freq#
pm.pm_domain.get_freq()
Description : Gets the current frequency of the specified power domain.
Parameters: None
Return Value: Returns the current frequency value of the specified domain.
list_profiles#
pm.pm_domain.list_profiles()
Description : Gets the list of frequency configurations supported by the specified power domain.
Parameters: None
Return Value: Returns a list containing all frequency configurations supported by the domain.
set_profile#
pm.pm_domain.set_profile(index)
Description : Sets the frequency configuration index of the specified power domain.
Parameters:
index: The frequency configuration index to be set.
Return Value: None
This API manual aims to provide developers with a clear and detailed PM module usage guide, ensuring the effective implementation and optimization of power management.