Common Embedded Mistakes¶

Avoid the following¶

• Hidden or undocumented timing assumptions
• Undefined behavior in edge or fault conditions
• Missing error states or undefined error handling
• Missing units in numerical requirements
• Undefined calling context (ISR, task, thread-safe)

Bad¶

The function must not block Problem: block is non-measurable

Better¶

The function must return within 50 µs and must not wait for hardware events.