Fixed register synchronization in 'analogReadResolution()'.

Claudio Indellicati · cmaglie · commit 806c330371e4 · 2015-05-20T15:16:43.000+02:00
diff --git a/cores/arduino/wiring_analog.c b/cores/arduino/wiring_analog.c
@@ -1,5 +1,5 @@
 /*
-  Copyright (c) 2014 Arduino.  All right reserved.
+  Copyright (c) 2014 Arduino LLC.  All right reserved.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
@@ -57,7 +57,6 @@ static void syncTCC(Tcc* TCCx) {
 void analogReadResolution( int res )
 {
   _readResolution = res ;
-  syncADC();
   if (res > 10)
   {
     ADC->CTRLB.bit.RESSEL = ADC_CTRLB_RESSEL_12BIT_Val;
@@ -73,6 +72,7 @@ void analogReadResolution( int res )
     ADC->CTRLB.bit.RESSEL = ADC_CTRLB_RESSEL_8BIT_Val;
     _ADCResolution = 8;
   }
+  syncADC();
 }
 
 void analogWriteResolution( int res )

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	`/*`
`2`		`- Copyright (c) 2014 Arduino. All right reserved.`
	`2`	`+ Copyright (c) 2014 Arduino LLC. All right reserved.`
`3`	`3`
`4`	`4`	`This library is free software; you can redistribute it and/or`
`5`	`5`	`modify it under the terms of the GNU Lesser General Public`
`@@ -57,7 +57,6 @@ static void syncTCC(Tcc* TCCx) {`
`57`	`57`	`void analogReadResolution( int res )`
`58`	`58`	`{`
`59`	`59`	`_readResolution = res ;`
`60`		`- syncADC();`
`61`	`60`	`if (res > 10)`
`62`	`61`	`{`
`63`	`62`	`ADC->CTRLB.bit.RESSEL = ADC_CTRLB_RESSEL_12BIT_Val;`
`@@ -73,6 +72,7 @@ void analogReadResolution( int res )`
`73`	`72`	`ADC->CTRLB.bit.RESSEL = ADC_CTRLB_RESSEL_8BIT_Val;`
`74`	`73`	`_ADCResolution = 8;`
`75`	`74`	`}`
	`75`	`+ syncADC();`
`76`	`76`	`}`
`77`	`77`
`78`	`78`	`void analogWriteResolution( int res )`