Microcontroller Wake-Up Status Handling for Faster Power-Up
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Solution Overview
Problem
As electronic devices become more complex with increasing components, the time required to power up and respond to triggers from a powered down state has increased, necessitating a solution to optimize this transition time.
Innovation Solution
An electronic device comprising an input-output management device and a microcontroller that performs an initialization phase to obtain and store wake-up statuses of input-output connections, followed by an operation phase to transmit a wake-up confirmation message to positively responsive connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of components or modules in an electronic device is increased to enhance functionality, then the device complexity increases, but the time required to power up the device also increases
Solution Approach 1:
The patent segments the power-up process into distinct phases: an initialization phase where critical components are powered up and configured, and a subsequent operational phase. This segmentation allows the system to establish basic functionality quickly while enabling non-critical components to initialize in the background, thereby reducing overall power-up time without sacrificing device versatility.
Solution Approach 2:
The patent implements preliminary actions by pre-configuring critical system parameters and initializing essential components during the initialization phase before the device is fully operational. This preliminary setup ensures that core functionalities are ready immediately, while other components can complete their initialization without delaying the device's operational readiness.
2Reliability
If the initialization phase is made more comprehensive to ensure all components are properly configured, then system reliability improves, but the time taken to respond to wake-up triggers increases
Solution Approach 1:
The patent implements a dynamic initialization process where the system adapts its configuration steps based on the specific wake-up scenario and required functionality. Critical configurations are executed immediately to ensure reliability, while non-critical configurations are deferred or performed in parallel, optimizing the balance between system reliability and wake-up response time.
Solution Approach 2:
The patent maintains continuity of useful action by overlapping the initialization of different components during the initialization phase. While critical components are being configured, less critical components are simultaneously initialized, ensuring that the configuration process continues without idle periods and reduces total initialization time while maintaining comprehensive system configuration.
Data Source
AI summary
There is provided an electronic device comprising: an input-output management device configured to manage input-output connections; and a microcontroller communicatively connected to the input-output management device, wherein the microcontroller is configured to perform an initialization phase after a trigger is received from an input-output connection to wake the electronic device from a powered down state, the initialization phase comprising: obtaining, from the input-output management device, wake-up statuses of the input-output connections managed by the input-output management device; and storing the statuses in a memory of the microcontroller; wherein the microcontroller is further configured to perform an operation phase after the initialization phase, the operation phase comprising: transmitting a wake-up confirmation message to the input-output connection with a positive wake-up status. There is also provided a method of responding to a trigger to wake an electronic device from a powered down state.