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-rwxr-xr-xtools/gen-device-avr.py9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/gen-device-avr.py b/tools/gen-device-avr.py
index 3517d868e..f2592c1ff 100755
--- a/tools/gen-device-avr.py
+++ b/tools/gen-device-avr.py
@@ -208,6 +208,15 @@ def writeAsm(outdir, device):
; Automatically generated file. DO NOT EDIT.
; Generated by gen-device-avr.py from {file}, see {descriptorSource}
+; This is the default handler for interrupts, if triggered but not defined.
+; Sleep inside so that an accidentally triggered interrupt won't drain the
+; battery of a battery-powered device.
+.section .text.__vector_default
+.global __vector_default
+__vector_default:
+ sleep
+ rjmp __vector_default
+
; Avoid the need for repeated .weak and .set instructions.
.macro IRQ handler
.weak \\handler