Tone: Change pin cache even if it's not NOT_A_PIN

facchinm · facchinm · commit 6441dd8b2f95 · 2018-03-02T17:35:32.000+01:00
diff --git a/cores/arduino/Tone.cpp b/cores/arduino/Tone.cpp
@@ -87,7 +87,7 @@ void tone(uint8_t pin, unsigned int frequency, unsigned long duration)
     long toggle_count = 0;
     uint32_t compare_val = 0;
 
-    if (_pin == NOT_A_PIN) {
+    if (_pin != pin) {
         pinMode(pin, OUTPUT);
         _pin = pin;
     }

Original file line number	Diff line number	Diff line change
`@@ -87,7 +87,7 @@ void tone(uint8_t pin, unsigned int frequency, unsigned long duration)`
`87`	`87`	`long toggle_count = 0;`
`88`	`88`	`uint32_t compare_val = 0;`
`89`	`89`
`90`		`- if (_pin == NOT_A_PIN) {`
	`90`	`+ if (_pin != pin) {`
`91`	`91`	`pinMode(pin, OUTPUT);`
`92`	`92`	`_pin = pin;`
`93`	`93`	`}`