add comment for potential AVR bug

Author: runger1101001

src/common/base_classes/FOCMotor.cpp

@@ -171,7 +171,7 @@ int FOCMotor::characteriseMotor(float voltage, float correction_factor=1.0f){
     unsigned int iterations = 40;    // how often the algorithm gets repeated.
     unsigned int cycles = 3;         // averaged measurements for each iteration
     unsigned int risetime_us = 200;  // initially short for worst case scenario with low inductance
-    unsigned int settle_us = 100000; // initially long for worst case scenario with high inductance
+    unsigned int settle_us = 100000; // TODO out of range for ATMega // initially long for worst case scenario with high inductance
 
     // Pre-rotate the angle to the q-axis (only useful with sensor, else no harm in doing it)
     current_electric_angle += 0.5f * _PI;