фиксы до работы с перемычкой вместо оптики

OpticalChannelTester/Core.cpp

@@ -63,6 +63,15 @@ bool dutyWithin(float measured, float expected, float tolerance) {
   return fabsf(measured - expected) <= tolerance + 0.0001f;
 }
 
+uint8_t choosePwmResolution(uint32_t frequencyHz, uint32_t sourceClockHz,
+                            uint8_t maxBits) {
+  if (!frequencyHz || !sourceClockHz || !maxBits) return 0;
+  uint8_t bits = maxBits;
+  while (bits > 1 && static_cast<uint64_t>(frequencyHz) * (1ULL << bits) > sourceClockHz)
+    --bits;
+  return bits;
+}
+
 FailReason validateResolution(uint32_t frequencyHz, float dutyPct, float accuracyPct,
                               uint32_t captureHz, uint8_t pwmBits) {
   if (!frequencyHz || !captureHz || !pwmBits) return FailReason::RESOLUTION;
@@ -98,4 +107,3 @@ FailReason evaluatePeriod(const PulsePeriod &p, uint32_t tickHz, float expectedH
   }
   return reason;
 }
-