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11
Normally
on,
th
e
watc
hdog
function
is
e
nabled,
the
syste
m
will
feed
the
dog
regularly.
The
watchdo
g
button
is
main
ly
u
sed
for
softwa
re
d
ebug.
Figure
4-3
:
W
DOG
k
ey
1
...
...
11
12
13
14
15
...
...
33