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-rwxr-xr-xcores/arduino/wiring_private.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/cores/arduino/wiring_private.h b/cores/arduino/wiring_private.h
index f678265..c366005 100755
--- a/cores/arduino/wiring_private.h
+++ b/cores/arduino/wiring_private.h
@@ -54,10 +54,10 @@ extern "C"{
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
#define EXTERNAL_NUM_INTERRUPTS 8
-#elif defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644P__)
+#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) || defined(__AVR_ATmega644__) || defined(__AVR_ATmega644A__) || defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644PA__)
#define EXTERNAL_NUM_INTERRUPTS 3
#elif defined(__AVR_ATmega32U4__)
-#define EXTERNAL_NUM_INTERRUPTS 4
+#define EXTERNAL_NUM_INTERRUPTS 5
#else
#define EXTERNAL_NUM_INTERRUPTS 2
#endif