aboutsummaryrefslogtreecommitdiff
path: root/variants/mega
diff options
context:
space:
mode:
authorCristian Maglie <c.maglie@bug.st>2013-10-01 18:15:31 +0200
committerCristian Maglie <c.maglie@bug.st>2013-10-31 12:44:24 +0100
commit9b4562c4c53f634d61eb89f210a599d376d44aae (patch)
tree38ff173d889e910385a3d9d54c2c158a0e2005d6 /variants/mega
parentd9f140b386d30c486a3119871838126834c4a133 (diff)
Using NOT_AN_INTERRUPT defined constant
Diffstat (limited to 'variants/mega')
-rw-r--r--variants/mega/pins_arduino.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/variants/mega/pins_arduino.h b/variants/mega/pins_arduino.h
index 47151d4..f121889 100644
--- a/variants/mega/pins_arduino.h
+++ b/variants/mega/pins_arduino.h
@@ -83,7 +83,7 @@ static const uint8_t A15 = 69;
( (((p) >= 62) && ((p) <= 69)) ? ((p) - 62) : \
0 ) ) ) ) ) )
-#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : ((p) >= 18 && (p) <= 21 ? 23 - (p) : -1)))
+#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : ((p) >= 18 && (p) <= 21 ? 23 - (p) : NOT_AN_INTERRUPT)))
#ifdef ARDUINO_MAIN