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2
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cc
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p
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7
In
th
e
d
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A
RM
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m
a
ste
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o
ARM7
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s in
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u
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g
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rial
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In
terf
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c
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h
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A
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b
o
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rd
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a
n
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Re
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it
ter) o
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N (Co
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r
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Ne
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s g
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rth
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2
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it
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t
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8
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d
Em
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d
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d
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y
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m
is
d
e
v
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p
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d
w
h
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re
in
th
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se
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d
a
ta
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ro
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t
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o
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a
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m
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s
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re
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ired
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h
e
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u
n
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ti
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n
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li
ty
o
f
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RM
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c
a
n
b
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m
o
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p
g
ra
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in
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s
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re
.
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p
g
ra
d
e
th
e
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ir
m
w
a
r
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sa
m
e
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o
m
m
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n
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li
n
k
h
a
s
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e
n
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se
d
.
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re
c
e
iv
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s
t
h
e
n
e
w
f
ir
m
wa
re
v
i
a
sa
m
e
A
R
M
9
-
A
RM
7
c
o
m
m
u
n
ica
ti
o
n
li
n
k
.
T
h
e
F
las
h
W
rit
e
o
p
e
ra
ti
o
n
is
p
e
rf
o
r
m
e
d
u
sin
g
th
e
so
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rc
e
c
o
d
e
t
o
w
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th
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n
e
w
f
ir
m
w
a
r
e
.
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o
tl
o
a
d
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r
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p
p
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ti
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th
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a
s
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n
d
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sig
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h
a
s
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in
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re
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K
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w
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d
:
B
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tlo
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C
A
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co
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w
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Flas
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R
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Dep
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C
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1.
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.
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I
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I
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Vo
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Flas
h
m
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m
o
r
y
o
f
AR
M7
.
B
u
t
f
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all
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f
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war
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o
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co
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o
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tio
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s
in
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.
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f
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te
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w
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it i
s
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.
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tle
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it b
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A
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t b
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af
f
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a
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s
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p
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m
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lash
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ir
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h
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ased
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m
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b
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[
2
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an
d
t
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)
b
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s
h
as
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ee
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elo
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ed
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n
th
is
co
m
m
u
n
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k
th
e
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M9
ac
ts
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s
ter
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t
w
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t
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v
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h
e
m
ai
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co
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tr
ai
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f
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et
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p
th
is
co
m
m
u
n
icatio
n
l
in
k
w
a
s
T
I
ME
.
i.e
.
p
er
ip
h
er
al
s
h
o
u
ld
g
et
th
e
q
u
i
ck
er
r
esp
o
n
s
e
f
r
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m
th
e
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er
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er
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e
p
er
f
o
r
m
a
n
ce
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e
m
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ed
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ed
d
ev
ices
is
li
m
i
ted
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y
th
e
f
ir
m
w
ar
e
w
h
i
ch
r
u
n
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o
v
er
it.
T
r
ad
itio
n
all
y
s
y
s
te
m
s
o
n
d
ev
ices
h
a
v
e
b
ee
n
d
esig
n
ed
u
s
i
n
g
A
T
ME
L
8
9
C
5
1
Mic
r
o
co
n
tr
o
ller
,
P
I
C
Mic
r
o
c
o
n
tr
o
ller
etc.
T
h
ese
m
icr
o
co
n
tr
o
ller
s
s
u
p
p
o
r
t th
e
co
m
m
u
n
icatio
n
u
s
i
n
g
R
S
-
2
3
2
o
r
R
S
-
4
8
5
.
Her
e
th
e
AR
M
Mic
r
o
co
n
tr
o
ller
s
a
r
e
u
s
ed
.
T
h
e
AR
M
m
icr
o
co
n
tr
o
ller
s
ar
e
h
av
in
g
f
ast
ex
ec
u
tio
n
s
p
ee
d
(
MI
P
S
–
m
illi
o
n
i
n
s
tr
u
ctio
n
s
p
er
s
ec
o
n
d
)
,
th
er
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y
m
ee
ti
n
g
t
h
e
b
as
ic
co
n
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tr
ain
(
T
I
ME
)
o
f
th
is
co
n
tr
o
l s
y
s
te
m
.
I
n
th
e
s
i
m
p
lest
f
o
r
m
it
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b
e
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p
lain
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as,
h
alf
d
u
p
le
x
co
m
m
u
n
ica
tio
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h
a
s
b
ee
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tab
lis
h
ed
b
et
w
ee
n
s
er
v
er
a
n
d
p
er
ip
h
er
als.
I
n
o
n
e
d
ir
ec
tio
n
t
h
e
d
ata
co
llected
b
y
p
er
ip
h
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al
s
is
tr
a
n
s
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itted
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er
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n
o
th
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d
ir
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th
e
co
m
m
a
n
d
f
r
o
m
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er
v
er
is
tr
a
n
s
m
it
ted
to
th
e
p
er
ip
h
er
als.
Fig
u
r
e
1
g
iv
es
t
h
e
b
lo
ck
d
iag
r
a
m
m
atic
v
ie
w
o
f
t
h
e
S
y
s
t
e
m
.
Fig
u
r
e
1
.
B
lo
ck
Diag
r
a
m
2.
CO
M
M
UNICAT
I
O
N
L
I
NK
2
.
1
.
UART (
Univ
er
s
a
l A
s
y
nchro
no
us
Rec
eiv
er
T
ra
ns
m
it
t
er
)
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h
e
Un
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s
a
l
A
s
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n
c
h
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v
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l
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d
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p
lex
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v
er
s
a
l
as
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ch
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s
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ial
li
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k
.
Data
f
r
a
m
e
f
o
r
m
at
is
w
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r
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r
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ata
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p
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m
ax
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m
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o
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m
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en
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u
lt
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co
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T
h
e
U
AR
T
f
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tu
r
e
s
t
h
r
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test
m
o
d
es:
r
e
m
o
te
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p
b
ac
k
,
lo
ca
l lo
o
p
b
ac
k
an
d
au
to
m
atic
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h
o
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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C
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N:
2
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8
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S
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1869
2
.
2
.
Rec
eiv
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a
nd
T
ra
ns
m
it
t
er
C
o
ntr
o
l
Af
ter
r
eset,
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h
e
r
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i
s
a
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h
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er
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N
b
it in
th
e
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e
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o
w
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er
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ter
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ter
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e
tr
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s
m
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tter
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e
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er
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N
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it
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e
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n
tr
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ter
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US_
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.
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w
e
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p
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a
n
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t
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.
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3
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h
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ti
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ar
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en
ab
l
es
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h
e
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AR
T
in
ter
f
ac
e
w
i
t
h
s
lo
w
r
e
m
o
te
d
e
v
ices.
T
h
e
ti
m
e
g
u
ar
d
f
u
n
ctio
n
en
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le
s
t
h
e
tr
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itt
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to
in
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h
e
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XD
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e
b
et
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t
w
o
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h
ar
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ter
s
.
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h
is
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le
s
tat
e
ac
tu
all
y
ac
ts
as a
lo
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g
s
to
p
b
it.
2
.
4
.
Rec
eiv
er
T
i
m
eo
ut
T
h
e
R
ec
eiv
er
T
i
m
e
-
o
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t
p
r
o
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d
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s
u
p
p
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t
in
h
a
n
d
li
n
g
v
ar
iab
le
-
le
n
g
th
f
r
a
m
es.
T
h
is
f
ea
tu
r
e
d
etec
ts
an
id
le
co
n
d
itio
n
o
n
t
h
e
R
XD
l
in
e.
W
h
e
n
a
ti
m
e
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o
u
t
i
s
d
ete
cted
,
th
e
b
it
T
I
ME
OUT
in
th
e
C
h
a
n
n
el
Stat
u
s
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eg
i
s
ter
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C
S
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r
is
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n
d
ca
n
g
e
n
er
ate
an
i
n
ter
r
u
p
t,
th
u
s
in
d
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g
to
th
e
d
r
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v
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en
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o
f
f
r
a
m
e.
2
.
5
.
CAN
(
C
o
ntr
o
ller
Are
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Net
wo
rk
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N
i
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a
b
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tr
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n
it
s
(
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s
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.
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ac
h
n
o
d
e
i
s
ab
le
to
s
en
d
an
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e
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ag
es,
b
u
t
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o
t si
m
u
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l
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m
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s
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ess
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s
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e
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it a
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ter
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s
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in
NR
Z
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an
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is
s
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b
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all
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o
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T
h
e
d
ev
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th
at
ar
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b
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A
C
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r
ite
o
t
h
er
n
o
d
es
‟
les
s
d
o
m
i
n
a
n
t
I
Ds,
s
o
t
h
at
e
v
en
t
u
all
y
(
af
ter
t
h
is
ar
b
itra
tio
n
o
n
th
e
I
D)
o
n
l
y
t
h
e
d
o
m
i
n
a
n
t
m
e
s
s
a
g
e
r
e
m
a
in
s
an
d
is
r
ec
eiv
ed
b
y
all
n
o
d
es.
3.
CO
M
M
UNICAT
I
O
N
P
RO
T
O
CO
L
T
h
e
co
m
m
u
n
icatio
n
b
et
w
ee
n
AR
M7
an
d
A
R
M9
i
s
v
ia
U
AR
T
(
Un
iv
er
s
al
As
y
n
c
h
r
o
n
o
u
s
R
ec
eiv
e
r
T
r
an
s
m
itter
)
o
v
er
C
AN
(
C
o
n
t
r
o
ller
A
r
ea
Net
w
o
r
k
)
.
T
h
e
AR
M9
b
eh
av
e
s
as
a
m
a
s
ter
a
n
d
t
w
o
AR
M7
b
o
ar
d
s
b
eh
av
e
as
s
la
v
es.
B
ein
g
m
as
t
er
AR
M9
p
ass
es
to
k
e
n
s
to
AR
M7
w
h
ic
h
i
n
t
u
r
n
r
et
u
r
n
s
(
A
c
k
n
o
w
led
g
es)
t
h
e
to
k
en
.
T
h
e
A
R
M9
i
s
f
u
r
t
h
er
co
n
n
ec
ted
to
P
r
o
x
y
v
ia
E
th
er
n
et.
T
h
e
p
r
o
x
y
i
s
f
u
r
t
h
er
co
n
n
e
cted
to
th
e
s
er
v
ic
e
p
latf
o
r
m
(
s
er
v
er
)
v
ia
E
t
h
er
n
et
.
I
n
th
e
s
i
m
p
le
s
t
f
o
r
m
it
ca
n
b
e
ex
p
la
in
ed
as,
h
al
f
d
u
p
lex
co
m
m
u
n
icatio
n
h
as
b
ee
n
estab
lis
h
ed
b
et
w
ee
n
s
er
v
er
an
d
p
er
ip
h
er
als.
I
n
o
n
e
d
ir
ec
tio
n
th
e
d
ata
co
llected
b
y
p
er
ip
h
er
als
(
User
s
w
ip
es
t
h
e
ca
r
d
at
t
h
e
r
ea
d
er
c
o
n
n
ec
ted
to
d
o
o
r
an
d
r
ea
d
er
r
ea
d
s
(
ex
tr
ac
ts
)
th
e
ca
r
d
n
u
m
b
er
)
is
tr
a
n
s
m
itted
to
s
er
v
er
[
3
]
.
I
n
o
th
er
d
ir
ec
tio
n
t
h
e
co
m
m
a
n
d
f
r
o
m
s
er
v
er
is
tr
an
s
m
itted
to
t
h
e
p
er
ip
h
er
al
s
(
B
ased
o
n
th
e
ca
r
d
n
u
m
b
er
r
ec
eiv
ed
s
er
v
er
s
e
n
d
s
ac
ce
s
s
g
r
a
n
ted
/d
en
ied
c
o
m
m
a
n
d
to
AR
M7
,
w
h
ic
h
in
tu
r
n
ta
k
es
t
h
e
co
r
r
esp
o
n
d
in
g
ac
tio
n
(
t
u
r
n
O
N/OFF)
o
n
t
h
e
R
ela
y
co
n
n
ec
te
d
at
th
e
d
o
o
r
to
u
lti
m
ate
l
y
o
p
en
/clo
s
e
t
h
e
d
o
o
r
)
.
3
.
1
.
UART I
nitia
liza
t
io
n
a.
T
h
e
tty
S4
p
o
r
t
(
UA
R
T
3
)
o
f
AR
M9
is
o
p
en
ed
u
s
i
n
g
th
e
f
ile
o
p
er
atio
n
.
T
h
e
f
ile
d
escr
i
p
to
r
is
u
s
ed
to
ac
ce
s
s
th
is
p
o
r
t.
b.
W
h
ile
in
i
tializi
n
g
U
A
R
T
f
o
llo
w
i
n
g
s
etti
n
g
s
ar
e
d
o
n
e
th
r
o
u
g
h
th
e
s
o
u
r
ce
co
d
e,
1)
B
au
d
R
ate:
1
1
5
2
0
0
2)
Data
b
its
: 8
b
its
3)
P
ar
ity
: N
o
n
e
4)
Sto
p
B
it: 1
b
it
5)
Har
d
w
ar
e
f
lo
w
C
o
n
tr
o
l: No
c.
T
h
e
UA
R
T
0
o
f
A
R
M7
is
ac
c
ess
ed
u
s
i
n
g
its
b
ase
ad
d
r
ess
(
A
T
9
1
_
B
A
SE_
US0
)
an
d
s
i
m
il
ar
s
ettin
g
s
ar
e
d
o
n
e
th
r
o
u
g
h
t
h
e
s
o
u
r
ce
co
d
e.
d.
A
co
m
m
u
n
icatio
n
li
n
k
b
et
w
e
en
t
h
ese
t
w
o
p
o
r
ts
(
tt
y
S4
o
f
AR
M9
an
d
U
AR
T
0
o
f
A
R
M
7
is
s
et
u
p
.
T
h
e
p
h
y
s
ical
m
ed
i
u
m
is
C
A
N
b
u
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
E
Vo
l.
7
,
No
.
4
,
A
u
g
u
s
t
2
0
1
7
:
1
8
6
7
–
1
8
7
3
1870
T
h
is
is
h
o
w
AR
M7
–
A
R
M9
p
h
y
s
ical
co
m
m
u
n
icatio
n
lin
k
w
as
s
e
tu
p
.
I
n
itial
l
y
t
h
er
e
w
a
s
n
‟
t
an
y
p
r
escr
ib
ed
co
m
m
u
n
icatio
n
p
ac
k
et
f
o
r
m
at
.
T
h
e
v
er
y
f
ir
s
t
atte
m
p
t
to
s
e
n
d
d
ata
o
v
er
th
is
co
m
m
u
n
icatio
n
li
n
k
w
a
s
d
o
n
e
b
y
tr
an
s
m
itti
n
g
j
u
s
t
t
h
e
s
i
n
g
le
ch
ar
ac
ter
(
1
b
y
te)
f
r
o
m
A
R
M7
to
A
R
M9
u
s
i
n
g
„
p
u
tch
ar
‟
f
u
n
c
tio
n
in
C
.
T
h
is
b
y
te
w
a
s
r
ec
eiv
ed
o
n
th
e
AR
M9
s
i
d
e
u
s
in
g
„
g
etc
h
ar
‟
f
u
n
c
tio
n
i
n
C
.
T
h
is
w
a
s
s
u
cc
ess
f
u
l.
L
ater
o
n
co
m
m
u
n
icatio
n
wi
t
h
s
in
g
le
b
y
te
b
u
t
b
o
th
tr
an
s
m
i
tti
n
g
a
n
d
r
ec
eiv
i
n
g
w
a
s
tr
i
ed
s
u
cc
ess
f
u
ll
y
o
v
er
t
h
is
co
m
m
u
n
icat
io
n
li
n
k
.
At
th
is
s
ta
g
e
a
f
u
n
ctio
n
a
l c
o
m
m
u
n
icatio
n
lin
k
w
a
s
estab
li
s
h
ed
.
No
w
t
h
e
n
ex
t ta
s
k
w
as to
d
ec
i
d
e
th
e
f
o
r
m
a
t o
f
t
h
e
co
m
m
u
n
icatio
n
p
ac
k
et.
T
ab
le
1
lis
ts
th
e
p
r
escr
ib
ed
p
ac
k
et
f
o
r
m
at
f
o
r
th
e
AR
M7
–
A
R
M9
co
m
m
u
n
icatio
n
.
T
ab
le
1
.
A
R
M7
–
AR
M9
C
o
m
m
u
n
icat
io
n
–
P
r
escr
ib
ed
P
ac
k
et
Fo
r
m
at
2
B
y
t
e
s
1
B
y
t
e
2
B
y
t
e
s
1
B
y
t
e
1
B
y
t
e
1
B
y
t
e
1
B
y
t
e
1
B
y
t
e
1
B
y
t
e
2
B
y
t
e
s
S
t
a
r
t
o
f
p
a
c
k
e
t
A
d
d
r
e
ss
o
f
b
o
a
r
d
S
e
q
u
e
n
c
e
N
u
mb
e
r
N
u
mb
e
r
o
f
B
y
t
e
s
P
a
c
k
e
t
Ty
p
e
D
A
TA
S
e
n
so
r
S
t
a
t
u
s
R
e
l
a
y
S
t
a
t
u
s
C
h
e
c
k
su
m
A
C
K
/
N
A
C
K
En
d
o
f
P
a
c
k
e
t
0
,
1
2
3
,
4
5
6
M
a
x
2
5
6
B
y
t
e
s
N
-
6
N
-
5
N
-
4
N
-
3
N
-
2
,
N
-
1
3
.
2
.
Chec
k
s
u
m
Fo
r
b
o
th
,
th
e
d
ata
r
ec
eiv
ed
in
th
e
p
ac
k
e
t
an
d
th
e
d
ata
to
b
e
tr
an
s
m
it
ted
in
t
h
e
p
ac
k
et
th
e
8
b
its
ch
ec
k
s
u
m
is
ca
lc
u
lated
o
n
b
o
th
t
h
e
s
id
es
AR
M7
an
d
AR
M9
.
T
h
e
lo
g
ic
u
s
ed
f
o
r
ca
lc
u
lati
n
g
t
h
e
c
h
ec
k
s
u
m
is
XORi
n
g
t
h
e
d
ata
in
t
h
e
p
ac
k
et
b
y
te
b
y
b
y
te.
B
ased
o
n
t
h
e
c
h
ec
k
s
u
m
cr
iter
io
n
t
h
e
i
n
te
g
r
it
y
o
f
th
e
d
ata
r
ec
eiv
ed
i
n
t
h
e
p
ac
k
e
t
i
s
c
h
ec
k
ed
i.e
.
t
h
e
d
ata
is
s
aid
to
b
e
er
r
o
r
f
r
ee
if
t
h
e
r
ec
eiv
ed
ch
ec
k
s
u
m
(
C
h
ec
k
s
u
m
f
ield
in
t
h
e
p
ac
k
et)
an
d
th
e
ca
lcu
la
ted
ch
ec
k
s
u
m
ar
e
m
a
tch
i
n
g
.
T
h
e
d
ata
is
ad
d
ed
to
th
e
r
ec
eiv
e
q
u
e
u
e
o
n
l
y
if
i
ts
i
n
teg
r
i
t
y
i
s
v
alid
a
ted
[
4
]
.
3.
3
.
ACK
/NACK
I
f
th
e
i
n
te
g
r
it
y
o
f
t
h
e
r
ec
eiv
ed
d
ata
is
v
al
id
ated
o
n
th
e
b
asi
s
o
f
c
h
ec
k
s
u
m
,
t
h
e
AC
KNOW
L
E
DGE
ME
NT
(
AC
K)
i
s
s
e
n
t
b
ac
k
b
y
p
ig
g
y
b
ac
k
in
g
in
th
e
n
e
x
t
p
ac
k
et,
o
th
er
w
i
s
e
N
O_
AC
KNOW
L
E
DGE
ME
NT
(
NACK)
is
s
e
n
t.
W
h
e
n
e
v
er
NAC
K
is
r
ec
eiv
ed
th
e
p
ac
k
e
t is r
es
en
d
.
T
h
e
p
ac
k
et
r
esen
d
in
g
i
s
p
er
f
o
r
m
ed
f
o
r
m
ax
i
m
u
m
o
f
th
r
ee
ti
m
es.
I
f
t
h
e
p
r
o
b
lem
s
ti
ll
p
er
s
is
ts
an
ev
e
n
t
is
s
en
d
to
th
e
p
r
o
x
y
let
tin
g
it
k
n
o
w
ab
o
u
t
th
e
p
r
o
b
le
m
in
AR
M7
–
AR
M9
co
m
m
u
n
icat
io
n
lin
k
.
I
n
t
u
r
n
t
h
e
s
er
v
er
w
ill co
m
e
to
k
n
o
w
ab
o
u
t th
e
co
m
m
u
n
icatio
n
p
r
o
b
le
m
.
Fo
r
r
esen
d
in
g
o
f
t
h
e
d
ata,
w
h
en
e
v
er
p
ac
k
et
is
s
en
t
its
co
p
y
i
s
w
r
itte
n
in
t
h
e
B
A
C
K
U
P
SEND
QUE
UE
.
I
f
NACK
is
r
ec
eiv
e
d
f
o
r
th
e
last
s
en
t
p
ac
k
et,
th
e
s
a
m
e
p
ac
k
et
is
r
ea
d
f
r
o
m
th
e
B
A
C
KUP
SEN
D
QUE
UE
an
d
r
esen
d
.
Ho
w
ev
er
if
th
e
AC
K
i
s
r
ec
eiv
ed
f
o
r
th
e
last
s
en
t
p
ac
k
et,
th
e
B
AC
K
UP
SEND
QUE
UE
is
r
ea
d
an
d
it is
f
r
ee
d
[
5
]
.
4.
F
I
RM
WARE UP
G
R
ADE O
F
ARM
7
T
h
e
A
R
M7
b
o
ar
d
,
w
h
ic
h
is
d
ir
ec
tl
y
lin
k
ed
w
it
h
th
e
p
er
ip
h
er
als
at
th
e
d
o
o
r
,
ca
n
b
e
m
o
d
if
ied
o
f
its
f
u
n
ctio
n
alit
y
a
s
an
d
w
h
e
n
r
eq
u
ir
ed
.
A
n
d
to
m
o
d
if
y
t
h
e
f
u
n
c
tio
n
alit
y
,
th
e
b
o
ar
d
n
ee
d
n
o
t
b
e
d
is
m
an
t
led
f
r
o
m
th
e
co
n
tr
o
l p
an
el
as
s
e
m
b
l
y
m
o
u
n
ted
i
n
a
r
e
m
o
te
lo
ca
tio
n
w
it
h
in
t
h
e
b
u
i
ld
in
g
.
Ho
w
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h
i
s
p
o
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ib
le?
T
h
e
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s
w
er
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th
i
s
q
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es
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s
in
t
h
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s
p
ap
er
.
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h
is
p
ap
er
ex
p
lain
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d
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Fir
m
w
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Up
g
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m
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AR
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m
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m
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m
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h
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h
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r
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o
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,
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h
ex
f
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f
o
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at
a
n
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s
ig
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f
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th
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w
f
ir
m
w
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[
6
]
.
4
.
1
.
B
o
o
t
lo
a
der
B
o
o
tlo
ad
e
r
is
a
p
iece
o
f
co
d
e
t
h
at
r
u
n
s
b
ef
o
r
e
an
y
m
ain
ap
p
li
ca
tio
n
is
r
u
n
n
in
g
.
Si
n
ce
it
is
u
s
u
all
y
t
h
e
f
ir
s
t
s
o
f
t
w
ar
e
to
r
u
n
a
f
ter
p
o
w
er
u
p
o
r
r
eset,
it
is
h
i
g
h
l
y
p
r
o
ce
s
s
o
r
an
d
b
o
ar
d
s
p
ec
i
f
ic.
T
h
e
b
o
o
tlo
ad
er
p
er
f
o
r
m
s
th
e
n
ec
e
s
s
ar
y
i
n
it
iali
za
tio
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s
.
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h
e
b
o
o
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a
d
er
a
p
p
lic
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n
u
s
e
s
th
e
s
a
m
e
to
k
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b
ased
co
m
m
u
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p
r
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to
co
l
to
co
m
m
u
n
icate
w
it
h
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t
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if
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t
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ai
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ap
p
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in
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Flas
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th
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elo
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m
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at
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le
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
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C
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I
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N:
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8
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S
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m
m
an
d
is
r
ec
ei
v
ed
f
r
o
m
AR
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9
.
On
r
ec
eiv
i
n
g
t
h
is
co
m
m
a
n
d
AR
M7
is
r
eset
u
s
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g
s
o
f
t
w
ar
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r
eset.
O
n
r
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ex
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u
tio
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g
o
es
to
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lash
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tar
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d
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0
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h
er
e
b
o
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o
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ait
s
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o
r
1
0
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n
d
s
to
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ec
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e
n
e
w
f
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m
w
ar
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b
y
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,
o
th
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w
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j
u
m
p
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b
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k
to
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A.
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h
e
m
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s
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is
d
is
p
la
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d
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n
7
-
Seg
Dis
p
la
y
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n
AR
M7
in
d
icatin
g
av
ailab
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t
y
o
f
ap
p
licatio
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f
ir
m
w
ar
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io
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A
.
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f
it
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ec
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s
th
e
n
e
w
f
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m
w
ar
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b
y
t
e
s
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th
e
r
ec
ei
v
i
n
g
ar
e
li
n
e
b
y
l
in
e
(
o
n
e
li
n
e
i
s
o
f
1
6
b
y
te
s
in
p
ar
s
ed
h
ex
f
ile)
.
T
h
e
m
e
m
o
r
y
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ag
e
o
f
th
e
s
e
b
y
te
s
i
s
f
o
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m
ed
ac
co
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d
in
g
to
t
h
e
ad
d
r
ess
es
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ec
eiv
ed
(
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ac
h
p
ag
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is
o
f
2
5
6
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te
s
=
Flas
h
P
ag
e
Size)
.
Af
ter
co
m
p
letio
n
o
f
o
n
e
p
a
g
e
AR
M9
s
e
n
d
s
th
e
W
R
I
T
E
co
m
m
a
n
d
to
A
R
M7
.
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n
r
ec
eiv
i
n
g
t
h
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s
co
m
m
a
n
d
th
at
p
ag
e
is
w
r
itte
n
to
f
lash
m
e
m
o
r
y
i
n
R
e
g
io
n
B
.
T
h
is
p
r
o
ce
d
u
r
e
g
o
es
o
n
till
th
e
en
tire
f
ir
m
w
ar
e
is
r
ec
eiv
ed
an
d
w
r
it
ten
to
R
e
g
io
n
B
.
On
ce
co
m
p
lete
n
e
w
f
ir
m
w
ar
e
is
av
a
ilab
le
in
R
e
g
io
n
B
,
its
s
ig
n
at
u
r
e
is
v
er
if
ied
.
I
f
s
ig
n
at
u
r
e
v
er
if
ica
tio
n
v
alid
ates
t
h
en
n
e
w
f
ir
m
w
ar
e
is
co
p
ied
to
R
eg
io
n
A
f
r
o
m
R
e
g
io
n
B
,
r
ep
lacin
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th
e
o
ld
f
ir
m
w
ar
e.
I
f
s
ig
n
at
u
r
e
v
er
i
f
icatio
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f
ail
s
,
m
ess
a
g
e
is
s
e
n
t
to
AR
M9
,
an
d
Old
f
ir
m
w
ar
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i
n
R
eg
io
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A
i
s
n
o
t
r
ep
lace
d
b
y
t
h
i
s
n
e
w
f
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m
w
ar
e
i
n
R
e
g
io
n
B
.
Af
ter
f
in
i
s
h
in
g
t
h
e
co
p
y
in
g
o
f
n
e
w
f
ir
m
w
ar
e
f
r
o
m
R
e
g
io
n
B
to
R
eg
io
n
A
,
A
R
M7
s
e
n
d
s
b
ac
k
FW
UP
GR
ADE
SU
C
C
E
SS
m
es
s
ag
e
to
A
R
M9
a
n
d
j
u
m
p
s
to
m
ai
n
ap
p
licatio
n
f
r
o
m
b
o
o
tlo
ad
er
(
to
R
eg
io
n
A
w
h
er
e
n
e
w
f
ir
m
w
ar
e
is
av
a
ila
b
le
n
o
w
)
.
4
.
2
.
F
la
s
h Wr
it
e
O
pera
t
io
n
T
h
e
Fla
s
h
m
e
m
o
r
y
i
s
w
r
i
tten
in
a
p
ag
e
-
by
-
p
ag
e
f
a
s
h
io
n
[
7
]
.
T
h
e
w
r
ite
i
s
ca
r
r
ied
o
u
t
b
y
s
t
o
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in
g
d
ata
f
o
r
an
en
tire
p
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i
n
to
a
te
m
p
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r
ar
y
p
a
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e
b
u
f
f
er
p
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io
r
to
w
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it
in
g
t
h
e
Flas
h
.
W
h
ich
Fla
s
h
ad
d
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ess
to
w
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to
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id
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y
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e
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I
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tel
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ex
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A
f
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s
h
p
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h
as
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er
ased
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it c
an
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it
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t
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er
.
T
h
e
w
r
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s
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f
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r
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w
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w
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it
in
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a
Flas
h
p
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a.
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m
p
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r
ar
y
p
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b
u
f
f
er
b.
E
r
ase
Flas
h
p
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c.
W
r
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Flas
h
p
ag
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As
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e
ca
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s
ee
o
f
t
h
is
s
eq
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ce
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h
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e
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s
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s
ib
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f
o
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lo
s
s
o
f
d
ata
if
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ese
t
o
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p
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ail
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h
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cc
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m
ed
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L
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d
ata
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b
e
av
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k
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n
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n
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e
s
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ar
y
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au
tio
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s
i
n
s
o
f
t
w
ar
e,
in
v
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l
v
in
g
b
u
f
f
er
in
g
i
n
n
o
n
v
o
latile
m
e
m
o
r
y
[
8
]
.
Fig
u
r
e
2
g
iv
e
s
th
e
lo
g
ic
o
f
f
las
h
w
r
ite
o
p
er
atio
n
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
J
E
C
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Vo
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7
,
No
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u
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2
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Flo
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4
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3
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Sig
na
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Aut
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Securit
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E
nh
a
nce
m
e
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T
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s
ig
n
at
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[
9
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h
a
s
b
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n
i
n
co
r
p
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r
ated
to
ass
u
r
e
th
at
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f
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t
h
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m
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.
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in
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e
m
ai
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ap
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licatio
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t
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itte
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e
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ess
at
a
co
m
p
ile
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m
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it
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el
f
.
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o
w
r
it
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at
co
m
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ile
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th
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s
tep
s
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Use
o
f
co
m
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iler
d
ir
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“
#
p
r
ag
m
a
lo
ca
tio
n
=
„
SE
C
T
I
ON_
NA
ME
‟
”
h
as
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n
m
ad
e
to
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eser
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th
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p
r
ed
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in
ed
m
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m
o
r
y
lo
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ig
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at
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e.
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h
e
s
ig
n
at
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d
ata
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w
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itte
n
in
th
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ab
o
v
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ec
lar
in
g
t
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ig
n
at
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ata
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m
m
ed
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f
o
llo
w
in
g
t
h
e
“
#
p
r
ag
m
a
lo
ca
ti
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n
”
d
ir
ec
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e.
T
h
e
lo
ca
tio
n
ad
d
r
ess
f
o
r
th
e
s
ec
tio
n
„
SE
C
T
I
ON_
NA
ME
‟
h
as
b
ee
n
d
ef
i
n
e
d
in
th
e
at9
1
SA
M7
S2
5
6
_
FLASH.
ic
f
f
ile.
T
h
is
p
r
ed
ef
in
ed
m
e
m
o
r
y
lo
ca
tio
n
is
lo
ck
ed
p
er
m
an
en
t
l
y
w
it
h
t
h
e
p
r
ed
ef
in
ed
s
ig
n
at
u
r
e
ch
ar
ac
ter
s
w
r
i
tten
o
n
it.
T
h
is
r
eg
io
n
i
s
n
ev
er
o
v
er
w
r
i
tten
.
W
h
en
e
v
er
t
h
er
e
is
a
n
ee
d
o
f
f
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m
w
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ad
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it
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n
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ar
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en
th
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s
ig
n
at
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b
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tes
ar
e
co
m
p
ar
ed
w
i
th
t
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p
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in
ed
s
i
g
n
atu
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e.
I
f
i
t
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o
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ld
Y
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ter
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C
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ter
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las
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c
o
v
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C
l
e
a
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l
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tatu
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v
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r
iab
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R
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R
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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N:
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1873
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5.
CO
NCLU
SI
O
N
AND
CO
M
P
ARIS
O
N
T
h
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n
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w
f
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m
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v
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it
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to
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lin
k
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h
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h
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d
ata
co
m
m
u
n
icatio
n
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s
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r
r
ied
o
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T
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is
eli
m
in
ate
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e
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ee
d
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f
d
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m
a
n
tli
n
g
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e
h
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d
w
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f
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o
m
th
e
r
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m
o
te
lo
ca
tio
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f
o
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th
e
p
u
r
p
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s
e
o
f
f
ir
m
war
e
u
p
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r
ad
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n
.
I
n
th
e
p
a
s
t
p
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p
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h
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p
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p
l
e
h
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e
s
u
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ted
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ir
m
w
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et
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p
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eq
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d
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m
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d
tak
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g
it to
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p
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‟
s
s
it
e.
T
h
is
w
o
u
ld
b
e
a
co
s
tlier
o
p
tio
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.
A
l
s
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Si
g
n
at
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tak
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s
ca
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f
Au
t
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icit
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.
So
d
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e
h
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ta
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et
w
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ed
e
m
b
ed
d
ed
s
y
s
te
m
d
e
v
elo
p
ed
.
T
h
e
tech
n
iq
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o
f
Fir
m
w
ar
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p
g
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in
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p
ap
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ill
m
a
k
e
th
e
h
ar
d
w
ar
e
m
u
l
tifu
n
c
tio
n
a
l
ag
ai
n
s
t
th
e
ap
p
licatio
n
s
p
ec
i
f
ic.
A
l
s
o
t
h
e
s
a
m
e
h
ar
d
w
ar
e
ca
n
b
e
m
o
d
if
ied
o
f
its
f
u
n
ctio
n
alit
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i
n
f
u
t
u
r
e
as
p
er
t
h
e
n
ee
d
an
d
n
e
w
p
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ip
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I
n
th
e
p
as
t
p
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p
le
h
av
e
p
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p
le
h
av
e
s
u
g
g
ested
s
ec
u
r
it
y
b
as
ed
o
n
er
r
o
r
co
n
tr
o
l
co
d
es.
I
n
th
is
p
ap
er
w
e
h
a
v
e
s
u
g
g
es
ted
s
i
g
n
a
tu
r
e
b
ased
s
ec
u
r
it
y
w
h
ic
h
is
m
o
r
e
ef
f
icien
t
as
t
h
e
s
ec
u
r
it
y
co
d
e
i
s
k
n
o
w
n
o
n
l
y
to
t
h
e
au
th
e
n
tic
m
a
n
u
f
ac
t
u
r
er
.
RE
F
E
R
E
NC
E
S
[1
]
No
rf
a
d
z
li
a
M
o
h
d
Yu
s
o
f
,
A
i
m
a
n
Zak
w
a
n
Jid
in
,
L
im
M
e
i
S
z
e
,
“
Web
Ba
se
d
Ho
m
e
S
e
c
u
rit
y
,
A
u
to
m
a
ti
o
n
S
y
ste
m
”
,
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
Rec
o
n
fi
g
u
ra
b
le
a
n
d
Em
b
e
d
d
e
d
S
y
ste
ms
IJ
RE
S
,
2
0
1
6
;
5
(
2
);
9
2
-
98.
[
2
]
V
in
a
y
a
k
P
a
n
d
it
K.,
S
a
n
k
e
t
De
s
sa
i,
S
h
il
p
a
Ch
a
u
d
h
a
ri,
“
De
v
e
lo
p
m
e
n
t
o
f
BS
P
f
o
r
A
RM
9
Ev
a
l
u
a
ti
o
n
Bo
a
rd
”
,
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
Rec
o
n
fi
g
u
ra
b
le
a
n
d
Em
b
e
d
d
e
d
S
y
ste
ms
IJ
RE
S
.
2
0
1
5
;
4
(
3
);
1
6
1
-
1
7
2
.
[3
]
Mi
ke
M
e
y
e
rste
in
,
In
h
y
o
k
Ch
a
,
Yo
g
e
n
d
ra
S
h
a
h
,
“
S
e
c
u
rity
As
p
e
c
ts
o
f
S
m
a
rt
Ca
r
d
s
v
s.
Emb
e
d
d
e
d
S
e
c
u
ri
ty
i
n
M
a
c
h
in
e
-
to
-
M
a
c
h
in
e
(
M
2
M
)
Ad
v
a
n
c
e
d
M
o
b
il
e
Ne
two
rk
Ap
p
li
c
a
ti
o
n
”,
S
e
c
u
rit
y
a
n
d
P
riv
a
c
y
in
M
o
b
il
e
In
f
o
rm
a
t
io
n
a
n
d
Co
m
m
u
n
ica
ti
o
n
S
y
ste
m
s,
F
irst
In
tern
a
ti
o
n
a
l
ICS
T
Co
n
f
e
re
n
c
e
,
M
o
b
iS
e
c
2
0
0
9
,
T
u
rin
,
I
taly
,
Re
v
ise
d
S
e
lec
ted
P
a
p
e
rs
–
S
p
rin
g
e
rli
n
k
.
(Ju
n
e
3
-
5
,
2
0
0
9
)
[4
]
Ou
Qin
g
v
u
,
Hu
a
n
g
Ka
i,
W
u
X
ia
o
p
i
n
g
,
“
Res
e
a
rc
h
o
n
th
e
Emb
e
d
d
e
d
S
e
c
u
rity
Arc
h
it
e
c
tu
re
B
a
se
d
o
n
t
h
e
Co
n
tro
l
Fl
o
w
S
e
c
u
rity”,
IEE
E
C
o
m
p
u
ter
S
o
c
iety
:
S
e
c
o
n
d
In
tern
a
ti
o
n
a
l
W
o
rk
sh
o
p
o
n
Co
m
p
u
ter
S
c
ien
c
e
a
n
d
En
g
in
e
e
rin
g
(2
0
0
9
).
[5
]
Ch
a
n
d
ra
se
k
a
ra
n
,
S
.
Ra
jen
d
ra
n
,
J.
A
n
n
a
m
a
lai,
“
Da
ta
Dr
ive
n
S
e
c
u
rity
Al
a
rm
M
o
d
e
l
fo
r
Emb
e
d
d
e
d
Ap
p
li
c
a
ti
o
n
s
”,
Co
m
p
u
ti
n
g
,
Co
m
m
u
n
ica
ti
o
n
a
n
d
Ne
tw
o
rk
in
g
,
ICCCn
2
0
0
8
,
I
n
tern
a
ti
o
n
a
l
Co
n
f
e
re
n
c
e
–
IEE
E
x
p
lo
re
d
ig
it
a
l
li
b
ra
ry
(2
0
0
8
).
[6
]
G
u
y
G
o
g
n
iat,
T
il
m
a
n
W
o
lf
,
e
t
a
l.
,
“
Re
c
o
n
f
ig
u
ra
b
le
Ha
rd
w
a
re
fo
r
Hig
h
-
S
e
c
u
rit
y
/h
ig
h
-
P
e
rf
o
rm
a
n
c
e
E
m
b
e
d
d
e
d
S
y
st
e
m
s:
T
h
e
S
A
F
ES
P
e
rsp
e
c
ti
v
e
”
,
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
Ver
y
L
a
rg
e
S
c
a
le
In
teg
r
a
ti
o
n
(
VL
S
I)
S
y
ste
ms
,
F
e
b
ru
a
ry
2
0
0
8
;
1
6
(
2
).
[7
]
T
e
d
Hu
ffm
ire,
Bre
tt
Bo
th
e
rto
n
a
n
d
o
t
h
e
rs.
M
a
n
a
g
in
g
S
e
c
u
rit
y
in
F
P
G
A
b
a
se
d
e
m
b
e
d
d
e
d
S
y
ste
m
s.
I
EE
E
CS
d
i
g
it
a
l
L
ib
ra
ry
.
N
o
v
e
m
b
e
r
-
De
c
e
m
b
e
r
2
0
0
8
;
2
5
(
6
).
[8
]
R.
V
a
slin
,
G
.
G
o
g
n
iat,
J.
-
P
.
D
ig
u
e
t,
R.
T
e
ss
ier,
W
.
Bu
rles
o
n
,
“
A
S
e
c
u
rit
y
A
p
p
ro
a
c
h
f
o
r
o
ff
-
c
h
ip
M
e
m
o
ry
in
E
m
b
e
d
d
e
d
M
icro
p
ro
c
e
ss
o
r
S
y
ste
m
s”
,
El
se
v
ier
J
o
u
rn
a
l
o
f
M
icr
o
e
lec
tro
n
ics
a
n
d
M
icr
o
p
ro
c
e
ss
o
rs
,
2
0
0
0
.
[9
]
T
.
Ei
se
n
b
a
rth
,
T
.
G
u
n
e
y
su
,
C.
P
a
a
r,
A
.
-
R.
S
a
d
e
g
h
i,
D.
S
c
h
e
ll
e
k
e
n
s,
M
.
W
o
lf
,
“
Rec
o
n
fi
g
u
ra
b
le
T
ru
ste
d
Co
mp
u
ti
n
g
in
H
a
r
d
wa
re
”
,
In
P
ro
c
e
e
d
i
n
g
s o
f
th
e
A
CM
W
o
rk
sh
o
p
o
n
S
c
a
lab
le
T
ru
ste
d
Co
m
p
u
ti
n
g
.
(No
v
e
m
b
e
r
2
0
0
7
)
[1
0
]
R.
El
b
a
z
,
L
.
T
o
rre
s,
G
.
S
a
ss
a
telli
,
P
.
G
u
il
lem
in
,
M
.
Ba
r
d
o
u
il
let,
A
.
M
a
rti
n
e
z
,
“
A
Pa
ra
l
lelize
d
wa
y
t
o
Pro
v
i
d
e
d
a
t
a
En
c
ry
p
ti
o
n
a
n
d
In
teg
rity
Ch
e
c
k
i
n
g
o
n
a
Pro
c
e
ss
o
r
-
M
e
mo
ry
b
u
s”
,
In
P
ro
c
e
e
d
in
g
s
o
f
th
e
IEE
E/
A
CM
I
n
tern
a
ti
o
n
a
l
De
sig
n
A
u
to
m
a
ti
o
n
Co
n
f
e
re
n
c
e
(
Ju
ly
2
0
0
6
).
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