Engineering Scope
Linux/Android standby power optimization is used to solve specific engineering problems in low-power projects. The work starts from the customer's existing design and business requirements, locates the reasons for system and peripheral block hangs, adjusts power management and background tasks; delivers driver or system patches, build instructions, standby and wake-up records according to agreed modules.
Check input with baseline
Check the SoC, PMIC, BSP, kernel or Android version, driver and wake-up logs to clarify the scope of measurement and modification.
Implementation and adaptation
Locate the causes of system and peripheral block hangs, adjust power management and background tasks, and record solution choices and dependencies.
Target environment joint debugging
Fixed system version checks suspend, wake-up reasons, business recovery and overall machine power, and confirms business behavior after parameter changes.
Document and record delivery
Provide driver or system patches, build instructions, standby and wake-up records, and describe versions, build or usage methods.
Project Workflow
- Enter confirmation: SoC, PMIC, BSP, kernel or Android version, driver and wake log.
- Implementation method: Locate the cause of system and peripheral block hangs, and adjust power management and background tasks.
- Phase review: Fixed system version check suspend, wake-up reasons, business recovery and overall machine power.
- Project delivery: driver or system patches, build instructions, standby and wake-up records.
Design Conditions and Functional Limits
The target depends on the SoC, PMIC, memory retention, and full board circuitry. Indicators should be set according to the local architecture, and hardware and software consumption should be checked separately.
Special services take the agreed module as the implementation boundary. When hardware modifications, third-party agreements, overall platforms or external tests are involved, the interfaces, workload and responsibilities are confirmed separately, and local modifications are not directly used as conclusions on the performance of the complete device.
Project Inputs
- SoC, PMIC, BSP, kernel or Android version, driver and wake logs.
- Existing prototypes and reproducible problems, or new project functionality and power consumption targets.
- Modified design, source code and third-party dependencies are allowed; functionality and compatibility need to be maintained.
- Delivery list, target environment, sample scope, project milestones and acceptance methods.
Delivery and Acceptance
| Delivery content | Check method |
|---|---|
| Driver or system patches, build instructions, standby and wake-up records | Check the editability, version, usage instructions and dependencies by file list. |
| Implementation verification | Fixed system version checks suspend, wake-up reasons, business recovery and overall machine power, and retains the corresponding working conditions and results. |
| Comparison of functions and power consumption | Fixed applicable hardware, software, battery, temperature and business cycles, accounting for changes in conditions and their impact. |
| Reproduction and follow-up maintenance | Provide build or run steps, known limitations, parameter ranges, and uncovered cases. |
Frequently Asked Questions
Can software modifications achieve standby levels for MCU nodes?+
The target depends on the SoC, PMIC, memory retention, and full board circuitry. Indicators should be set according to the local architecture, and hardware and software consumption should be checked separately.
What information do I need to prepare before starting the project?+
This work focus requires SoC, PMIC, BSP, kernel or Android version, driver and wake log. When the data is incomplete, first determine the scope that needs supplementary testing or sorting out, and then proceed to implementation.
Can it be implemented together with the complete device development project?+
It can be used as a work package in the overall project, or it can be implemented separately for existing products. It is necessary to explain the interfaces with other modules, versions and final machine verification responsibilities.
Engineering References
The configuration of GPIO should be checked together with the external circuit, sleep mode and wake-up status; the actual parameters are subject to the target chip data and the whole board test. GPIO and power state design reference
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