Prevent the 'tone(f,d)' function from being interrupted

9 years ago · 6110d57c16
parent b73203a0b7
commit 6110d57c16
1 changed files with 3 additions and 0 deletions
--- a/Marlin/buzzer.h
+++ b/Marlin/buzzer.h
@ -23,6 +23,7 @@
 #ifndef __BUZZER_H__
 #define __BUZZER_H__

+#include "types.h"
 #include "fastio.h"
 #include "circularqueue.h"
 #include "temperature.h"
@ -127,7 +128,9 @@ class Buzzer {

        if (this->state.tone.frequency > 0) {
          #if ENABLED(SPEAKER)
+            CRITICAL_SECTION_START;
            ::tone(BEEPER_PIN, this->state.tone.frequency, this->state.tone.duration);
+            CRITICAL_SECTION_END;
          #else
            this->on();
          #endif