Fix compiler warning for HAL_ANALOG_SELECT

6 years ago · b858c638ad
1 changed files with 1 additions and 1 deletions
--- a/Marlin/src/HAL/HAL_AVR/HAL_AVR.h
+++ b/Marlin/src/HAL/HAL_AVR/HAL_AVR.h
@ -164,7 +164,7 @@ extern "C" {

 // ADC
 #ifdef DIDR2
-  #define HAL_ANALOG_SELECT(pin) do{ if (pin < 8) SBI(DIDR0, pin); else SBI(DIDR2, pin - 8); }while(0)
+  #define HAL_ANALOG_SELECT(pin) do{ if (pin < 8) SBI(DIDR0, pin); else SBI(DIDR2, pin & 0x07); }while(0)
 #else
  #define HAL_ANALOG_SELECT(pin) do{ SBI(DIDR0, pin); }while(0)
 #endif