X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=bertos%2Fcpu%2Favr%2Fdrv%2Fadc_avr.c;h=c42f8e3ba4f9c6ae67db243790e8542f38883575;hb=ae3571e0d7273f8642468c6a0958c29c05dc7b2a;hp=3eb08b79c2c2cf84bc582c797e912e19f5e828cb;hpb=d7c99e625d8111df00662724329fca3f8e7f9a94;p=bertos.git

diff --git a/bertos/cpu/avr/drv/adc_avr.c b/bertos/cpu/avr/drv/adc_avr.c
index 3eb08b79..c42f8e3b 100644
--- a/bertos/cpu/avr/drv/adc_avr.c
+++ b/bertos/cpu/avr/drv/adc_avr.c
@@ -104,12 +104,23 @@ void adc_hw_select_ch(uint8_t ch)
 	#elif CPU_AVR_ATMEGA32 || CPU_AVR_ATMEGA64 || CPU_AVR_ATMEGA128 || CPU_AVR_ATMEGA1281 \
 	      || CPU_AVR_ATMEGA1280
 		ADMUX &= ~(BV(MUX4) | BV(MUX3) | BV(MUX2) | BV(MUX1) | BV(MUX0));
+		#if CPU_AVR_ATMEGA1280
+			ADCSRB &= ~(BV(MUX5));
+		#endif
 	#else
 		#error Unknown CPU
 	#endif
 
-	/* Select channel, only first 8 channel modes are supported for now */
+	/* Select channel, only first 8 channel modes are supported */
 	ADMUX |= (ch & 0x07);
+
+	#if CPU_AVR_ATMEGA1280
+		/* Select channel, all 16 channels are supported */
+		if (ch > 0x07)
+			ADCSRB |= BV(MUX5);
+
+	#endif
+
 }