Engineering Scope
The sensor low-power acquisition driver is developed to solve specific engineering problems in low-power projects. The work starts from the customer's existing design and business requirements, and develops single measurement, FIFO, interruption and power supply control, retaining the necessary stabilization time; delivering driver source code, parameter description, sampling records and exception handling according to the agreed modules.
Check input with baseline
Check the sensor manual, measurement mode, timing, interface and data requirements to clarify the measurement and modification scope.
Implementation and adaptation
Develop single measurement, FIFO, interruption and power supply control, retain necessary stabilization time, and record solution trade-offs and dependency conditions.
Target environment joint debugging
Compare sampling continuity, first sample effectiveness and energy consumption in different modes to confirm business behavior after parameter changes.
Document and record delivery
Provide driver source code, parameter description, sampling records and exception handling, and explain the version, construction or usage method.
Project Workflow
- Input confirmation: sensor manual, measurement mode, timing, interface and data requirements.
- Implementation method: Develop single measurement, FIFO, interrupt and power supply control, retaining necessary stabilization time.
- Stage review: Compare sampling continuity, first sample effectiveness and energy consumption in different modes.
- Project delivery: driver source code, parameter description, sampling records and exception handling.
Design Conditions and Functional Limits
The target event frequency and allowable delay must be confirmed, and the filtering and data validity conditions must be checked at the same time. After modification, the measurement or identification results should be returned.
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
- Sensor manual, measurement modes, timing, interface and data requirements.
- 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 source code, parameter description, sampling records and exception handling | Check the editability, version, usage instructions and dependencies by file list. |
| Implementation verification | Compare the sampling continuity, first sample effectiveness and energy consumption of different modes, and retain 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 the sensor output frequency be directly reduced?+
The target event frequency and allowable delay must be confirmed, and the filtering and data validity conditions must be checked at the same time. After modification, the measurement or identification results should be returned.
What information do I need to prepare before starting the project?+
This work focuses on the need for sensor manuals, measurement modes, timing, interfaces and data requirements. 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
Online
Phone
WeChat
Top