pins_arduino.h improvements

[stefanrueger]

The pins_arduino.h in Moteino/MEGA/Core/Moteino.zip

can be improved:

• There is no definition for digitalPinToInterrupt(p). This triggers a compilation error. I suggest

  define digitalPinToInterrupt(p) ((p) == 10? 0: (p) == 11? 1: (p) == 2? 2: NOT_AN_INTERRUPT)

• NUM_DIGITAL_PINS should be defined as 32 (there are 32 digital pins, not 31)
• The pinout comment misspells OC0B as 0C0B
• The LED_BUILTIN macro misses. How about

  define LED_BUILTIN 15

Easy fixes throughout. Here a diff -e of mine with the existing

72a

define digitalPinToInterrupt(p) ((p) == 10? 0: (p) == 11? 1: (p) == 2? 2: NOT_AN_INTERRUPT)

.
58a

define LED_BUILTIN 15

.
41c

define NUM_DIGITAL_PINS 32

.
17c
// PCINT12/OC0B/SS (D4 ) PB4 5|~ |36 PA4 (A4 / D28)/PCINT4
.

[stefanrueger]

... more problems: digitalPinToPCMSK(p) is plain wrong (it's a copy from ATmega328P). Should be

#define digitalPinToPCMSK(p) (((p) <= 7)? (&PCMSK1): ((p) <= 15)? (&PCMSK3): ((p) <= 23)? (&PCMSK2): (&PCMSK0))

[jedon]

Thank you, that fixed my compile error!