sl-firmware
c348e093ef
Implements STM32F722 driver for brushless cooling fan on PA9 using TIM1_CH2 PWM. Features: - Temperature-based speed curve: off <40°C, 30% at 50°C, 100% at 70°C - Smooth speed ramp transitions with configurable rate (default 0.05%/ms) - Linear interpolation between curve points - PWM duty cycle control (0-100%) - State transitions and edge case handling All 51 unit tests passing: - Temperature curve verification (6 test zones) - Speed boundaries and transitions - Ramp timing and rate control - PWM duty cycle calculation - Temperature extremes and boundary conditions Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>