Hopefully fixed problem with tone() blocking when it should be non-blocking

rogerclarkmelbourne · rogerclarkmelbourne · commit f66b9f10f387 · 2017-12-10T17:07:57.000+11:00
diff --git a/STM32F1/cores/maple/tone.cpp b/STM32F1/cores/maple/tone.cpp
@@ -186,7 +186,8 @@ void tone(uint32_t pin, uint32_t freq, uint32_t duration) {
       pinMode(tone_pin, INPUT);
 
    }
-   while(tone_nhw) ; // blocks till duration elapsed
+   
+   //while(tone_nhw) ; // blocks till duration elapsed
 }
 
 ////////////////////////////////////////////////////////////////////////////////
