Nonblocking execution
Long delays can prevent a controller from accepting commands during an animation or motor sequence. Separate state management from timing so those tasks can progress without blocking the command interface.
Expertise
Embedded firmware
Firmware for timing, control and calibration.
Embedded logic for sensor inputs, commands and outputs, including startup, stored settings and fault handling.
Embedded C and device control
- State and timing
- Calibration
- Fault handling
Normal operation and exceptional conditions
Startup, held inputs, invalid measurements, lost commands and resets all require defined responses. AUBRIX develops and refines firmware against those requirements, so the implementation can be reviewed and tested against specific input conditions.
Invalid inputs and recovery
Define when a measurement is usable, how outputs respond when it is unavailable and how normal operation resumes. Missing data should not be presented as a plausible reading.
Persistent settings
Specify which settings, calibration values and scripts must survive a restart. Software reset, console reset and full power cycling can follow different paths and need separate checks.
Engineering process
Project
process.
- 01
Specify inputs and outputs
Document expected responses, including startup, release, timeout and recovery cases relevant to the device.
- 02
Inspect the implementation
Compare the code with available captures or hardware observations. Distinguish the reported symptom from its suspected cause.
- 03
Revise the firmware
Implement the required command handling and state transitions. Review timing and resource use against the controller's constraints.
- 04
Test the affected functions
Run the agreed scenarios and record the results. Document remaining issues without presenting a focused correction as a general reliability guarantee.
Depending on the agreed scope
Project
deliverables.
- Source changes with build and configuration notes
- State, command or calibration documentation
- Repeatable functional checks
- Known limitations and follow-up items
Testing depends on available hardware, access and the agreed assignment. Source inspection is not hardware validation, and a firmware correction alone does not establish production readiness.
Project experience
Related
projects.
Embedded firmware + prototype work
SmartLED firmware for ATtiny85
The ATtiny85 SmartLED firmware coordinates fades, stored scripts and motor patterns without long blocking delays.
Project details
Firmware diagnosis + calibration
N64 joystick calibration
N64 output-mapping corrections were delivered; reset-related calibration persistence remains a follow-up refinement.
Project detailsTalk engineering
Which function or fault needs firmware development?
Send a short, non-confidential summary of your requirements and current development stage.
Discuss your project with AUBRIX