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-rw-r--r--pins/mega/pins_arduino.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/pins/mega/pins_arduino.h b/pins/mega/pins_arduino.h
index acbd28f..b25f858 100644
--- a/pins/mega/pins_arduino.h
+++ b/pins/mega/pins_arduino.h
@@ -53,6 +53,31 @@ const static uint8_t A13 = 67;
const static uint8_t A14 = 68;
const static uint8_t A15 = 69;
+// A majority of the pins are NOT PCINTs, SO BE WARNED (i.e. you cannot use them as receive pins)
+// Only pins available for RECEIVE (TRANSMIT can be on any pin):
+// (I've deliberately left out pin mapping to the Hardware USARTs - seems senseless to me)
+// Pins: 10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69
+
+#define digitalPinToPCICR(p) ( (((p) >= 10) && ((p) <= 13)) || \
+ (((p) >= 50) && ((p) <= 53)) || \
+ (((p) >= 62) && ((p) <= 69)) ? (&PCICR) : ((uint8_t *)0) )
+
+#define digitalPinToPCICRbit(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? 0 : \
+ ( (((p) >= 62) && ((p) <= 69)) ? 2 : \
+ 0 ) )
+
+#define digitalPinToPCMSK(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? (&PCMSK0) : \
+ ( (((p) >= 62) && ((p) <= 69)) ? (&PCMSK2) : \
+ ((uint8_t *)0) ) )
+
+#define digitalPinToPCMSKbit(p) ( (((p) >= 10) && ((p) <= 13)) ? ((p) - 6) : \
+ ( ((p) == 50) ? 3 : \
+ ( ((p) == 51) ? 2 : \
+ ( ((p) == 52) ? 1 : \
+ ( ((p) == 53) ? 0 : \
+ ( (((p) >= 62) && ((p) <= 69)) ? ((p) - 62) : \
+ 0 ) ) ) ) ) )
+
#ifdef ARDUINO_MAIN
const uint16_t PROGMEM port_to_mode_PGM[] = {