Улучшения

- улушчено отображение на OLED
- убраны настройки шага частоты и количества повторов
- сделан перебор только реализуемых частот
- увеличена точность, на 1МГц 1.25%, в остальных до 1%
- точное измерение TOTAL TIME

OpticalChannelTester/Measurement.h

@@ -7,20 +7,21 @@ class Measurement {
  public:
   explicit Measurement(PulseReceiver &receiver) : receiver_(receiver) {}
   bool start(float expectedHz, float expectedDuty, float tolerancePct,
-             uint32_t testTimeMs, uint8_t repeats, uint8_t settleCycles);
+             uint32_t testTimeMs, uint8_t settleCycles);
   MeasureState update();
   bool continueAfterDisplay();
   void abort();
   MeasureState state() const { return state_; }
   FailReason reason() const { return stats_.reason; }
   const StageStats &stats() const { return stats_; }
+  uint8_t progressStep() const { return currentStep_; }
   bool statsSnapshot(StageStats &out) const;
  private:
   static void taskEntry(void *context);
   void taskLoop();
   MeasureState processOnce();
   void fail(FailReason reason);
-  void completeStep();
+  void completeMeasurement();
   void publishStats();
   PulseReceiver &receiver_;
   volatile MeasureState state_ = MeasureState::IDLE;
@@ -30,11 +31,11 @@ class Measurement {
   mutable portMUX_TYPE statsMux_ = portMUX_INITIALIZER_UNLOCKED;
   PeriodLimits limits_ = {};
   uint32_t expectedHz_ = 0;
-  uint8_t repeats_ = 0, settleCycles_ = 0, settleLeft_ = 0;
-  uint8_t currentRepeat_ = 0, currentStep_ = 0, totalSteps_ = 0;
+  float expectedDutyPct_ = 0.0f;
+  uint8_t settleCycles_ = 0, settleLeft_ = 0;
   uint64_t measurementStartTick_ = 0, deadlineTick_ = 0, stepTicks_ = 0;
   uint32_t startedMs_ = 0, measurementStartMs_ = 0, lastPeriodMs_ = 0;
   uint32_t stepTimeMs_ = 1, expectedPeriodMs_ = 1;
-  uint32_t repeatPeriods_[10] = {};
+  volatile uint8_t currentStep_ = 0;
   PulsePeriod periodBatch_[PERIOD_BATCH_SIZE] = {};
 };