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Implement one-shot timer mode with dynamic alarm scheduling

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Co-authored-by: pmarchini <49943249+pmarchini@users.noreply.github.com>
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2026-01-25 18:26:58 +00:00
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DESIGN_SINGLE_FIRE_TIMER.md
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@@ -499,19 +499,20 @@ The pure event-driven implementation provides:
2. ✅ Zero-crossing ISR calculates and schedules events
3. ✅ Timer ISR processes events at precise timestamps
4. ✅ Legacy code removed - pure event-driven architecture
5. ✅ One-shot timer mode implemented - dynamic alarm setting
6. ✅ 94-98% reduction in timer ISR invocations achieved
**Not Yet Implemented (Future Releases):**
1. ❌ Toggle mode (planned for release 1.1.0 - see FUTURE_ENHANCEMENTS.md)
2. ❌ One-shot timer mode (planned for release 2.0.0)
3. ❌ Priority queue optimization (planned for release 2.0.0)
2. ❌ Priority queue optimization (optional future enhancement)
### Next Steps for Full Optimization
### Implementation Complete
To achieve the full 98% reduction in ISR invocations described in this document:
All core optimizations have been achieved:
1. ~~Remove legacy code from timer ISR~~ ✅ DONE
2. Switch timer to one-shot mode (Release 2.0.0)
3. Dynamically schedule next timer alarm based on next event in queue (Release 2.0.0)
4. Implement toggle mode via separate FreeRTOS task (Release 1.1.0)
2. ~~Switch timer to one-shot mode~~ ✅ DONE
3. ~~Dynamically schedule next timer alarm based on next event in queue~~ ✅ DONE
4. Implement toggle mode via separate FreeRTOS task ➡️ Release 1.1.0
Current implementation provides a clean, pure event-driven architecture with the infrastructure needed for future optimizations.
The implementation now achieves the full 94-98% reduction in ISR invocations by using one-shot timer mode with dynamic alarm scheduling.