noisymime
/
ArduinoCore-avr
mirror of https://github.com/noisymime/ArduinoCore-avr.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Use analogPinToChannel() macro if present for ATtiny25/45/85. 

This allows use of A0, A1, A2, A3 constants and for them to be mapped to the appropriate analog input channel. It should only be used if the macro is actually defined.
This commit is contained in:
David A. Mellis 2013-03-06 17:49:44 -05:00
parent 09b755fb9c
commit aa218e803a
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cores/arduino/wiring_analog.c
View File

@ -47,6 +47,8 @@ int analogRead(uint8_t pin)
if (pin >= 18) pin -= 18; // allow for channel or pin numbers
#elif defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644P__)
if (pin >= 24) pin -= 24; // allow for channel or pin numbers
#elif defined(analogPinToChannel) && (defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__))
pin = analogPinToChannel(pin);
#else
if (pin >= 14) pin -= 14; // allow for channel or pin numbers
#endif