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h
ey
a
cq
u
ir
e
a
n
d
p
r
o
ce
s
s
.
So
m
e
o
f
th
e
m
o
s
t
co
m
m
o
n
l
y
u
s
ed
ar
e:
s
lo
w
co
r
tical
p
o
ten
tials
[
7
]
,
m
o
to
r
im
ag
er
y
[
8
]
,
ev
e
n
t
-
r
elate
d
s
y
n
ch
r
o
n
izatio
n
an
d
d
esy
n
c
h
r
o
n
izatio
n
(
E
R
S/ER
D)
[
9
]
an
d
v
is
u
al
ev
o
k
e
d
p
o
te
n
tials
.
T
h
ese
last
o
n
es
ca
n
b
e
class
if
ied
as
s
tead
y
-
s
tate
(
SS
VE
Ps
)
an
d
tr
an
s
ien
t
s
tate
(
T
V
E
PS
)
[
1
0
]
p
o
te
n
tials
.
Mo
s
t
o
f
th
e
cu
r
r
en
t
r
esear
c
h
o
n
th
e
s
u
b
ject
m
ak
es
u
s
e
o
f
a
b
io
p
o
ten
tial
ac
q
u
is
itio
n
s
y
s
tem
an
d
a
p
er
s
o
n
al
co
m
p
u
ter
(
PC
)
.
T
h
is
g
r
ea
tly
lim
its
th
e
p
o
r
ta
b
ilit
y
an
d
f
lex
i
b
ilit
y
o
f
th
e
s
et,
s
o
it
is
tim
e
t
o
m
ig
r
ate
to
an
em
b
ed
d
ed
s
y
s
tem
,
elim
in
atin
g
th
e
PC
f
r
o
m
th
e
s
ch
em
e.
T
h
e
d
esig
n
o
f
B
C
I
s
ac
co
r
d
i
n
g
to
th
e
d
i
f
f
er
en
t p
ar
ad
i
g
m
s
h
as
s
u
b
s
tan
tial
d
if
f
er
e
n
ce
s
,
b
u
t
s
ev
er
al
asp
ec
ts
in
co
m
m
o
n
:
a
ll
o
f
th
em
r
eq
u
ir
e
r
ea
l
-
tim
e
a
cq
u
is
itio
n
an
d
p
r
o
ce
s
s
in
g
o
f
E
E
G
s
ig
n
als,
h
ig
h
co
m
p
u
tatio
n
s
p
ee
d
,
s
o
th
at
t
h
e
u
s
er
h
as
f
ast
f
ee
d
b
ac
k
to
its
co
m
m
an
d
s
,
an
d
a
n
in
tu
itiv
e
a
n
d
ea
s
y
-
to
-
u
s
e
u
s
er
in
ter
f
ac
e.
Fo
r
th
ese
r
ea
s
o
n
s
t
h
e
au
th
o
r
s
b
eliev
e
th
at
So
C
-
FP
GAs
h
av
e
a
lo
t
to
c
o
n
tr
ib
u
te
t
o
th
e
d
esig
n
o
f
B
C
I
s
y
s
tem
s
.
Par
ticu
lar
ly
,
SS
VE
Ps
ar
e
p
er
io
d
ic
p
o
te
n
tials
th
at
ca
n
b
e
o
b
t
ain
ed
b
y
E
E
G
r
ec
o
r
d
in
g
in
th
e
o
cc
ip
ital
ar
ea
.
T
h
ey
ap
p
ea
r
wh
e
n
th
e
u
s
er
is
p
r
esen
ted
with
p
er
io
d
ic
v
is
u
al
s
tim
u
li
ab
o
v
e
6
Hz,
an
d
p
r
esen
t
th
e
s
am
e
p
er
io
d
icity
as
th
e
s
tim
u
lu
s
.
SS
VE
P
b
ased
B
C
I
s
ar
e
am
o
n
g
th
e
o
n
es
th
at
ca
n
ac
h
iev
e
th
e
h
ig
h
est
in
f
o
r
m
atio
n
tr
an
s
f
er
r
ate
(
I
T
R
)
[
4
]
.
T
h
ey
also
h
av
e
th
e
ad
v
an
ta
g
e
o
f
b
e
in
g
s
im
p
le
to
u
s
e
d
ev
ices,
th
a
t
r
eq
u
ir
e
v
er
y
litt
le
tr
a
in
in
g
,
h
en
ce
th
ey
h
av
e
b
ee
n
wid
ely
s
tu
d
ied
.
E
x
am
p
les
o
f
th
ese
im
p
lem
e
n
tatio
n
s
ca
n
b
e
f
o
u
n
d
at:
[
4
]
,
[
5
]
,
[
1
1
]
-
[
1
3
]
.
T
h
ese
ty
p
es
o
f
B
C
I
s
im
p
o
s
e
v
er
y
d
e
m
an
d
in
g
tim
e
co
n
s
tr
ain
ts
,
s
u
ch
as
th
e
g
en
er
atio
n
o
f
s
ev
er
al
v
is
u
al
s
tim
u
li
th
at
h
av
e
to
b
e
s
y
n
ch
r
o
n
ized
with
th
e
s
ig
n
al’
s
ac
q
u
is
itio
n
.
I
ts
im
p
lem
en
tatio
n
with
a
m
icr
o
co
n
tr
o
ller
p
o
r
tin
g
a
r
ea
l
tim
e
o
p
er
atio
n
s
y
s
tem
(
R
T
O
S),
f
o
r
ex
am
p
le,
ca
n
p
r
o
d
u
ce
a
d
is
p
er
s
io
n
o
n
th
e
laten
cy
,
in
tr
o
d
u
cin
g
p
h
ase
n
o
i
s
e.
T
h
e
FP
GAs
ca
n
ad
d
r
ess
t
h
is
is
s
u
e,
s
y
n
ch
r
o
n
izin
g
b
o
th
th
e
ac
q
u
is
itio
n
a
n
d
th
e
s
tim
u
li with
a
s
in
g
le
clo
ck
,
r
esu
ltin
g
in
v
e
r
y
lo
w
a
n
d
co
n
s
tan
t la
ten
cies.
T
h
e
im
p
lem
en
tatio
n
o
f
SS
VE
P
-
b
ased
B
C
I
s
y
s
tem
s
in
FP
G
As
is
a
r
elativ
ely
n
ew
s
u
b
ject
o
f
s
tu
d
y
,
b
u
t
h
as
g
iv
en
r
is
e
to
p
u
b
licat
io
n
s
s
u
ch
as
[
1
4
]
,
wh
er
e
a
S
SVEP
-
b
ased
B
C
I
with
p
h
ase
en
co
d
i
n
g
t
h
at
ca
n
ac
h
iev
e
a
2
0
b
its
/m
in
I
T
R
(
5
t
o
8
s
ec
o
n
d
s
p
e
r
s
elec
ted
co
m
m
an
d
)
is
p
r
esen
ted
,
o
r
[
1
5
]
,
wh
ich
r
ep
o
r
ts
an
I
T
R
o
f
3
6
b
its
/m
in
.
Alth
o
u
g
h
th
ese
d
ev
ices
d
o
n
o
t
r
ea
ch
th
e
I
T
R
s
ac
h
iev
ed
b
y
th
e
s
y
s
tem
s
r
ep
o
r
ted
in
[
4
]
o
r
[
1
3
]
,
th
ey
d
o
s
tan
d
o
u
t
f
o
r
th
eir
p
o
r
tab
ilit
y
an
d
f
lex
ib
ilit
y
.
No
n
e
o
f
th
ese
wo
r
k
s
u
s
es
an
a
r
ch
it
ec
tu
r
e
lik
e
th
e
o
n
e
p
r
o
p
o
s
ed
,
wh
ich
co
m
b
in
es
th
e
co
m
p
u
tatio
n
al
s
p
ee
d
o
f
an
FP
GA
with
a
g
en
er
al
-
p
u
r
p
o
s
e
p
r
o
ce
s
s
o
r
f
o
r
h
ig
h
-
lev
el
task
s
in
a
s
in
g
le
ch
ip
.
T
h
is
a
r
ticle
d
is
cu
s
s
es
th
e
u
s
e
o
f
So
C
FP
GA
s
y
s
tem
s
to
ac
q
u
ir
e
an
d
p
r
o
ce
s
s
E
E
G
s
i
g
n
als.
T
h
e
ad
v
an
tag
es
o
f
u
s
in
g
th
is
ty
p
e
o
f
d
ev
ice
ar
e
ev
alu
ated
,
a
n
d
it
is
d
is
cu
s
s
ed
h
o
w
t
h
e
d
if
f
er
en
t
p
r
o
ce
s
s
in
g
elem
en
ts
ca
n
b
e
u
s
ed
f
o
r
ea
c
h
o
f
t
h
e
task
s
in
v
o
lv
e
d
.
Af
ter
war
d
s
it
is
s
h
o
wn
th
e
d
e
v
elo
p
m
en
t
o
f
a
SS
VE
P
b
ased
B
C
I
,
with
f
r
eq
u
e
n
cy
en
co
d
in
g
,
d
e
v
elo
p
e
d
en
tire
l
y
o
n
a
d
e1
0
-
n
an
o
b
o
ar
d
,
b
ased
o
n
a
C
y
clo
n
e
V
So
C
-
FP
GA
p
r
o
v
id
ed
b
y
I
n
tel
Alter
a,
an
d
its
u
s
e
to
co
m
m
a
n
d
a
s
p
eller
,
well
s
u
ited
f
o
r
th
e
Sp
a
n
is
h
l
a
n
g
u
a
g
e.
As
a
r
esu
lt,
a
d
ev
ice
th
at
s
tan
d
s
o
u
t
f
o
r
b
ein
g
co
m
p
ac
t,
f
lex
ib
le,
p
o
r
tab
le,
lo
w
-
c
o
s
t,
ea
s
y
to
u
s
e
an
d
in
d
ep
en
d
en
t
f
r
o
m
a
h
o
s
t
PC
f
o
r
its
o
p
er
ati
o
n
,
is
o
b
tain
e
d
.
Alth
o
u
g
h
t
h
e
im
p
lem
en
ted
s
y
s
tem
is
b
ased
o
n
SS
VE
Ps
,
a
lar
g
e
p
ar
t o
f
t
h
e
to
o
ls
d
ev
el
o
p
ed
ca
n
b
e
u
s
ed
t
o
im
p
lem
en
t
d
if
f
er
e
n
t ty
p
es o
f
B
C
I
s
.
2.
M
AT
E
R
I
AL
S AN
D
M
E
T
H
O
DS
2
.
1
.
Sy
s
t
em
o
n
chip
W
h
en
d
ev
elo
p
i
n
g
h
ig
h
-
q
u
alit
y
r
ea
l
-
tim
e
s
y
s
tem
s
,
d
ev
el
o
p
e
r
s
m
u
s
t
ch
o
o
s
e
b
etwe
en
two
f
am
ilies
o
f
d
ig
ital
d
ev
ices.
T
h
e
f
ir
s
t
o
p
t
io
n
is
a
p
u
r
e
-
s
o
f
twar
e
ap
p
r
o
ac
h
,
wh
er
e
a
m
icr
o
p
r
o
ce
s
s
o
r
,
u
s
ed
as
th
e
co
r
e,
co
m
m
u
n
icate
s
with
a
DSP
o
r
o
th
e
r
ex
te
r
n
al
d
ev
ices,
f
o
r
m
i
n
g
a
m
u
ltip
le
-
c
h
ip
s
y
s
tem
.
T
h
e
s
ec
o
n
d
o
p
tio
n
co
n
s
is
ts
o
f
a
s
y
s
tem
o
n
ch
ip
(
So
C
)
,
in
wh
ich
all
th
e
n
ec
ess
ar
y
elec
tr
o
n
ic
cir
cu
its
f
o
r
a
g
iv
en
s
y
s
tem
ar
e
in
teg
r
ated
in
a
s
in
g
le
cir
cu
it (
I
C
)
.
T
h
e
r
esu
lt is
a
d
ev
ice
th
at
u
s
es les
s
en
er
g
y
,
h
as b
etter
p
e
r
f
o
r
m
a
n
ce
,
r
eq
u
ir
es
less
s
p
ac
e,
ac
h
iev
es
a
h
ig
h
er
co
m
m
u
n
icatio
n
b
an
d
wid
t
h
b
etwe
en
th
e
d
if
f
er
en
t
s
u
b
s
y
s
tem
s
,
an
d
is
m
o
r
e
r
eliab
le
th
an
s
y
s
tem
s
th
at
in
v
o
lv
e
m
u
ltip
le
ch
ip
s
[
1
]
.
T
h
e
co
m
b
in
atio
n
o
f
a
m
icr
o
p
r
o
ce
s
s
o
r
an
d
an
FP
GA
is
th
e
co
r
e
o
f
m
an
y
em
b
ed
d
e
d
s
y
s
tem
s
.
As
m
en
tio
n
ed
,
th
er
e
ar
e
p
len
ty
o
f
r
ea
s
o
n
s
to
in
teg
r
ate
th
em
,
alo
n
g
with
d
if
f
er
en
t
p
er
ip
h
e
r
als
th
at
ar
e
o
f
in
ter
est,
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Reco
n
f
ig
u
r
a
b
le
&
E
m
b
ed
d
ed
Sy
s
t
I
SS
N:
2089
-
4
8
6
4
SoC
-
F
P
GA
s
ystems
fo
r
th
e
a
cq
u
is
itio
n
a
n
d
p
r
o
ce
s
s
in
g
o
f e
le
ctro
en
ce
p
h
a
lo
g
r
a
p
h
ic
… (
Ma
t
ía
s
Ja
vier O
liva
)
239
in
a
s
in
g
le
c
h
ip
.
I
n
th
is
way
,
it
is
p
o
s
s
ib
le
to
in
teg
r
ate
th
e
h
ig
h
-
lev
el
f
u
n
cti
o
n
alities
o
f
a
p
r
o
ce
s
s
o
r
with
th
e
r
ea
l
-
tim
e
o
p
er
atio
n
o
f
an
FP
GA
,
en
s
u
r
in
g
a
n
o
p
tim
al
i
n
ter
co
n
n
ec
tio
n
b
etwe
en
b
o
t
h
p
r
o
ce
s
s
in
g
elem
en
ts
.
I
n
th
ese
h
eter
o
g
en
e
o
u
s
s
y
s
tem
s
,
FP
GA
s
ar
e
id
ea
l
f
o
r
h
an
d
lin
g
p
ar
allel
o
p
e
r
atio
n
s
o
f
m
an
y
d
ata
ch
an
n
els;
an
d
,
b
ec
au
s
e
th
ey
im
p
lem
en
t
co
m
p
u
tatio
n
d
ir
ec
tl
y
in
h
ar
d
war
e,
th
e
y
p
r
o
v
id
e
a
lo
w
an
d
c
o
n
s
tan
t
laten
cy
p
at
h
f
o
r
task
s
s
u
ch
as
cu
s
to
m
tr
ig
g
er
in
g
an
d
h
ig
h
-
s
p
ee
d
clo
s
ed
-
l
o
o
p
co
n
tr
o
l.
On
t
h
e
o
t
h
er
h
an
d
,
th
e
y
im
p
r
o
v
e
th
e
f
lex
ib
ilit
y
o
f
em
b
ed
d
ed
s
y
s
tem
s
,
m
a
k
in
g
th
em
ea
s
ier
to
u
p
d
ate
th
an
s
y
s
tem
s
with
f
ix
ed
l
o
g
ic
a
n
d
allo
win
g
th
em
to
ad
a
p
t
to
ch
a
n
g
in
g
I
/O
r
e
q
u
ir
em
e
n
ts
.
I
n
th
i
s
s
ch
em
e,
th
e
d
esig
n
er
s
ca
n
s
o
lv
e
th
e
task
s
th
at
d
em
an
d
lo
w
laten
c
y
u
s
in
g
th
e
FP
GA,
wh
ile
th
e
em
b
ed
d
e
d
p
r
o
ce
s
s
o
r
tak
es
ca
r
e
o
f
th
e
u
s
er
in
ter
f
ac
e
an
d
th
e
r
est o
f
th
e
task
s
with
less
er
tim
e
co
n
s
tr
ain
ts
,
p
o
s
s
ib
ly
p
o
r
tin
g
an
o
p
er
atin
g
s
y
s
tem
f
o
r
it.
C
u
r
r
en
tly
th
er
e
a
r
e
two
m
a
n
u
f
ac
tu
r
e
r
s
th
at
co
n
ce
n
t
r
ate
alm
o
s
t
th
e
en
tire
o
f
f
e
r
o
f
S
o
C
-
FP
G
A
s
y
s
tem
s
.
T
h
ese
ar
e
Xilin
x
an
d
I
n
tel
(
f
o
r
m
er
ly
Alter
a)
.
T
h
e
d
e1
0
-
n
a
n
o
b
o
ar
d
,
s
elec
ted
f
o
r
t
h
is
ar
ticle,
f
ea
tu
r
es
a
C
y
clo
n
e
V
5
C
SEBA6
U2
3
I
7
FP
G
A
-
So
C
,
p
ar
t
o
f
th
e
lo
w
-
r
an
g
e
o
f
I
n
tel
Alter
a
d
ev
ices.
T
h
is
ch
ip
co
m
b
i
n
es
th
e
C
y
clo
n
e
V
FP
GA
with
an
AR
M
-
C
o
r
tex
A9
p
r
o
ce
s
s
o
r
,
wh
ich
ca
r
r
ies
an
An
g
s
tr
o
m
d
is
tr
ib
u
tio
n
o
f
a
L
i
n
u
x
o
p
er
atin
g
s
y
s
tem
,
alo
n
g
s
id
e
with
in
ter
co
n
n
ec
tio
n
b
u
s
es
b
etwe
en
th
em
.
Ad
d
itio
n
ally
,
t
h
e
b
o
ar
d
p
r
o
v
id
es
a
L
T
C
2
3
0
8
ch
i
p
:
a
5
0
0
k
s
p
s
,
1
2
-
B
it,
s
u
cc
ess
iv
e
ap
p
r
o
x
im
atio
n
r
eg
is
ter
(
SAR
)
an
alo
g
-
to
-
d
ig
ital
co
n
v
er
ter
(
ADC).
T
h
e
1
1
0
K
lo
g
ic
elem
en
ts
o
f
th
e
C
y
clo
n
e
V
5
C
S
E
B
A6
U2
3
I
7
d
ev
ice
ar
e
m
o
r
e
th
an
en
o
u
g
h
f
o
r
th
e
ty
p
e
o
f
p
r
o
ce
s
s
in
g
r
e
q
u
ir
ed
f
o
r
th
is
ap
p
licatio
n
,
as
it
is
to
b
e
s
h
o
wn
in
s
ec
tio
n
3
.
1
,
an
d
th
e
ADC
in
clu
d
ed
in
th
e
b
o
ar
d
is
well
s
u
ited
f
o
r
t
h
e
a
c
q
u
is
itio
n
o
f
th
e
E
E
G
s
i
g
n
al,
h
en
ce
th
e
s
elec
tio
n
o
f
th
e
d
e1
0
n
an
o
b
o
ar
d
co
n
s
titu
tes
a
co
s
t
-
ef
f
ec
tiv
e
s
o
l
u
tio
n
.
I
n
I
n
tel
Alter
a’
s
d
o
c
u
m
en
tatio
n
th
e
m
icr
o
p
r
o
ce
s
s
o
r
is
o
f
ten
r
ef
e
r
r
ed
to
as
a
h
ar
d
p
r
o
ce
s
s
o
r
s
y
s
tem
(
HPS).
T
h
is
ac
r
o
n
y
m
will b
e
u
s
ed
o
n
th
is
p
ap
er
as we
ll.
2
.
2
.
B
CI im
plem
ent
a
t
io
n us
ing
S
o
C
I
n
o
r
d
e
r
to
im
p
lem
en
t
a
B
C
I
d
ev
ice
it
is
n
ec
es
s
ar
y
to
o
b
tain
elec
tr
o
en
ce
p
h
al
o
g
r
a
p
h
ic
s
ig
n
als
f
r
o
m
th
e
u
s
er
an
d
p
r
o
ce
s
s
th
em
in
r
ea
l
tim
e,
in
th
e
s
h
o
r
test
p
o
s
s
ib
le
tim
e.
T
h
e
p
r
o
ce
s
s
ed
in
f
o
r
m
atio
n
m
u
s
t
b
e
class
if
ied
b
y
s
o
m
e
cr
iter
ia
an
d
th
en
u
s
ed
to
co
n
tr
o
l
a
d
e
v
ice.
T
h
r
o
u
g
h
o
u
t
th
e
p
r
o
ce
s
s
,
th
e
u
s
er
m
u
s
t
b
e
p
r
o
v
id
e
d
with
an
i
n
ter
f
ac
e
as i
n
tu
itiv
e
as p
o
s
s
ib
le
,
wh
ich
p
r
o
v
id
es h
im
with
f
ee
d
b
ac
k
.
So
C
-
FP
GA
s
y
s
tem
s
ar
e
id
ea
l
f
o
r
im
p
lem
en
tin
g
s
u
ch
a
s
y
s
tem
.
On
th
e
o
n
e
h
a
n
d
,
th
e
FP
GA
i
s
av
ailab
le
to
h
an
d
le
th
e
ac
q
u
is
itio
n
an
d
p
r
o
ce
s
s
in
g
o
f
th
e
s
ig
n
als
an
d
,
o
n
th
e
o
t
h
er
,
th
e
m
ic
r
o
p
r
o
c
ess
o
r
is
id
ea
l
to
ca
r
r
y
th
e
u
s
er
i
n
ter
f
ac
e.
T
h
e
class
if
icat
io
n
o
f
th
e
s
ig
n
als
an
d
th
e
co
n
tr
o
l
o
f
th
e
d
ev
ices
ca
n
b
e
h
an
d
led
b
y
eith
er
o
f
th
e
two
m
o
d
u
les.
As
a
cr
iter
io
n
f
o
r
ch
o
o
s
in
g
wh
ich
o
n
e
to
u
s
e,
ev
alu
atin
g
wh
at
t
y
p
e
o
f
d
e
v
ices
will
b
e
co
n
tr
o
lled
is
p
r
o
p
o
s
ed
.
I
f
t
h
e
p
u
r
p
o
s
e
o
f
th
e
B
C
I
is
to
co
n
tr
o
l
s
o
f
twar
e
(
a
s
p
eller
,
f
o
r
ex
am
p
le)
it
ca
n
b
e
p
r
o
g
r
a
m
m
ed
d
ir
ec
tly
i
n
to
th
e
m
icr
o
p
r
o
ce
s
s
o
r
,
to
g
eth
er
with
th
e
s
ig
n
al
class
if
ier
s
y
s
tem
.
Alter
n
ativ
ely
,
if
th
e
id
ea
is
to
co
n
tr
o
l
s
o
m
e
ex
ter
n
al
h
ar
d
wa
r
e
(
a
wh
ee
lch
air
,
f
o
r
ex
am
p
le)
it
is
p
r
ef
er
a
b
le
t
h
at
th
e
FP
GA
tak
es
ca
r
e
o
f
b
o
th
th
e
class
if
ier
s
y
s
tem
an
d
th
e
d
e
v
ice
d
r
iv
er
,
to
m
in
im
ize
th
e
laten
c
y
.
I
f
it
is
n
ec
ess
ar
y
to
co
n
tr
o
l
ex
ter
n
al
s
tim
u
li
to
h
a
n
d
le
th
e
d
ev
ice
(
v
is
u
al
s
tim
u
li,
f
o
r
e
x
am
p
le)
,
it
is
p
r
ef
er
ab
le
to
c
o
n
tr
o
l
th
e
m
b
y
th
e
FP
GA,
to
f
ac
il
itate
th
eir
s
y
n
ch
r
o
n
is
m
with
th
e
ac
q
u
ir
ed
s
ig
n
al.
T
o
g
u
ar
an
tee
th
e
co
r
r
ec
t
ac
q
u
is
itio
n
,
s
to
r
ag
e
an
d
p
r
o
ce
s
s
in
g
o
f
th
e
s
ig
n
al
th
er
e
ar
e
s
o
m
e
b
asic
elem
en
ts
th
at
m
u
s
t
b
e
s
o
lv
ed
with
in
th
e
FP
GA.
An
an
alo
g
-
to
-
d
ig
ital
co
n
v
e
r
ter
(
ADC)
with
1
2
-
b
it
r
eso
lu
tio
n
ca
n
b
e
u
s
ed
to
ac
q
u
ir
e
th
e
s
ig
n
al,
as
lo
n
g
as
an
ap
p
r
o
p
r
iate
an
alo
g
s
ig
n
al
co
n
d
itio
n
in
g
s
ta
g
e
is
p
r
o
v
id
e
d
.
T
h
is
co
n
v
er
ter
m
u
s
t
b
e
m
a
n
ag
ed
b
y
a
d
e
d
icate
d
m
o
d
u
le
in
th
e
FP
GA.
R
aw
s
am
p
les
s
h
o
u
ld
b
e
f
ir
s
t
s
av
e
d
in
ter
n
ally
an
d
th
en
ex
p
o
r
te
d
to
s
o
m
e
m
em
o
r
y
s
h
ar
ed
with
th
e
m
icr
o
p
r
o
ce
s
s
o
r
,
wh
en
a
ce
r
tain
n
u
m
b
er
o
f
s
am
p
les
is
r
ea
ch
ed
.
T
h
is
is
d
o
n
e
in
o
r
d
er
f
o
r
th
e
p
r
o
ce
s
s
o
r
t
o
h
a
v
e
ac
ce
s
s
to
th
e
r
aw
s
am
p
les;
f
o
r
g
r
a
p
h
in
g
,
f
o
r
ex
a
m
p
le,
b
u
t w
ith
o
u
t
h
av
i
n
g
to
h
an
d
le
th
e
m
in
r
ea
l
-
tim
e
.
W
h
ile
th
er
e
ar
e
m
an
y
p
o
s
s
ib
le
d
ig
ital sig
n
al
p
r
o
ce
s
s
in
g
tech
n
iq
u
es a
n
d
m
eth
o
d
s
th
at
ca
n
b
e
u
s
ef
u
l in
a
B
C
I
s
y
s
tem
,
o
n
e
o
f
th
e
m
ain
o
n
es is
th
e
d
is
cr
ete
Fo
u
r
ier
tr
an
s
f
o
r
m
(
DFT)
.
T
h
is
tr
an
s
f
o
r
m
p
r
o
v
id
es a
way
to
an
aly
ze
s
ig
n
als
in
a
tim
e
-
in
d
ep
en
d
en
t
f
ash
io
n
,
an
d
th
e
f
as
t
Fo
u
r
ier
tr
an
s
f
o
r
m
(
FF
T
)
im
p
lem
en
tatio
n
o
f
it
d
r
am
atica
lly
r
ed
u
ce
s
th
e
n
u
m
b
er
o
f
o
p
er
atio
n
s
in
v
o
lv
ed
o
n
its
ca
lcu
latio
n
.
Ad
d
itio
n
ally
,
u
s
in
g
th
is
alg
o
r
ith
m
,
co
r
r
elatio
n
s
an
d
c
o
n
v
o
lu
tio
n
s
ca
n
b
e
im
p
lem
e
n
ted
,
in
g
e
n
er
al,
u
s
in
g
f
ewe
r
o
p
er
atio
n
s
,
wh
ich
allo
ws
th
e
im
p
lem
en
tatio
n
o
f
d
ig
ital
f
ilter
s
in
a
n
ef
f
icien
t
way
[
1
6
]
.
I
n
th
is
s
ch
em
e
,
it
is
th
e
FP
GA
th
at
m
u
s
t
b
e
in
ch
ar
g
e
o
f
ca
lcu
latin
g
t
h
e
FF
T
o
f
th
e
s
ig
n
als,
s
av
in
g
th
e
r
esu
l
ts
o
f
th
e
p
r
o
ce
s
s
in
g
in
s
o
m
e
m
em
o
r
y
s
h
ar
ed
with
th
e
m
icr
o
p
r
o
ce
s
s
o
r
.
I
t
is
d
esira
b
le
th
at
th
e
len
g
th
o
f
t
h
e
FF
T
m
atch
es
th
e
n
u
m
b
er
o
f
s
am
p
les
th
at
th
e
m
icr
o
p
r
o
ce
s
s
o
r
h
as
ac
ce
s
s
to
,
in
o
r
d
er
f
o
r
it
to
h
av
e
ac
ce
s
s
to
th
e
r
aw
an
d
p
r
o
ce
s
s
ed
s
ig
n
al
in
th
e
last
tim
e
-
win
d
o
w
at
an
y
g
iv
en
m
o
m
e
n
t.
W
ith
th
e
ac
q
u
is
itio
n
an
d
p
r
o
c
ess
in
g
o
f
th
e
s
ig
n
al
r
eso
lv
ed
,
it
is
th
e
m
icr
o
p
r
o
ce
s
s
o
r
th
at
m
u
s
t
tak
e
ca
r
e
o
f
th
e
h
ig
h
-
lev
el
task
s
.
T
h
e
m
o
s
t
im
p
o
r
tan
t
o
n
e
is
th
e
u
s
er
in
ter
f
ac
e,
wh
ich
s
h
o
u
ld
b
e
as
in
tu
itiv
e
an
d
u
s
er
-
f
r
ien
d
l
y
as
p
o
s
s
ib
le.
I
t
is
d
esira
b
le
th
at
th
is
in
ter
f
ac
e
p
r
o
v
i
d
es
th
e
o
p
er
ato
r
with
a
way
t
o
v
e
r
if
y
th
e
co
r
r
ec
t
ac
q
u
is
itio
n
o
f
th
e
s
ig
n
al,
b
y
g
r
a
p
h
in
g
it,
f
o
r
e
x
am
p
le.
I
n
g
en
e
r
al,
th
ese
d
ev
ices
ca
r
r
y
an
o
p
er
atin
g
s
y
s
tem
,
wh
ich
g
iv
es
d
ev
elo
p
e
r
s
th
e
p
o
s
s
ib
ilit
y
o
f
p
r
o
g
r
am
m
in
g
th
e
in
ter
f
ac
e
with
th
e
h
ig
h
-
lev
el
d
esig
n
to
o
ls
th
ey
ar
e
m
o
s
t f
am
iliar
with
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
20
89
-
4
8
6
4
I
n
t J Reco
n
f
ig
u
r
a
b
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&
E
m
b
ed
d
ed
Sy
s
t
,
Vo
l.
10
,
No
.
3
,
No
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em
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er
2
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1
:
237
–
2
4
8
240
2
.
3
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P
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B
CI im
plem
ent
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t
io
n
2
.
3
.
1
.
Ste
a
dy
s
t
a
t
e
v
is
ua
lly
e
v
o
k
ed
po
t
ent
ia
ls
SS
E
VP
s
ar
e
p
er
io
d
ic
p
o
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tia
ls
th
at
ap
p
ea
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in
a
u
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er
'
s
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G
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o
r
d
wh
en
p
r
esen
ted
with
p
er
io
d
ic
f
lash
in
g
lig
h
ts
,
with
f
r
eq
u
en
ci
es
ab
o
v
e
6
Hz,
an
d
p
r
esen
t
th
e
s
am
e
p
er
io
d
icity
o
f
th
e
s
tim
u
lu
s
.
I
m
p
lem
en
tin
g
a
s
y
s
tem
th
at
u
s
es
th
ese
p
o
ten
tials
to
co
n
tr
o
l
s
o
m
e
ty
p
e
o
f
d
ev
ice
in
v
o
lv
es
m
ea
s
u
r
in
g
t
h
e
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E
G
s
ig
n
al,
an
d
p
r
o
ce
s
s
in
g
it
in
its
s
ea
r
ch
.
T
h
er
e
ar
e
m
ain
ly
two
way
s
to
u
s
e
v
is
u
al
s
tim
u
li
to
e
n
co
d
e
in
f
o
r
m
atio
n
:
p
h
ase
an
d
f
r
eq
u
e
n
cy
en
co
d
in
g
.
I
n
th
e
f
ir
s
t
ca
s
e,
th
e
u
s
er
is
p
r
esen
ted
with
m
u
ltip
le
f
lash
in
g
s
tim
u
li
at
th
e
s
am
e
f
r
eq
u
e
n
cy
,
b
u
t
o
u
t
o
f
p
h
ase
with
ea
ch
o
t
h
er
[
1
4
]
.
I
t
is
th
e
task
o
f
th
e
class
if
icatio
n
alg
o
r
ith
m
to
d
etec
t
t
h
is
d
elay
in
o
r
d
er
to
d
et
er
m
i
n
e
w
h
ich
s
tim
u
lu
s
th
e
u
s
er
is
lo
o
k
in
g
at.
I
n
t
h
e
s
ec
o
n
d
ca
s
e,
t
h
e
u
s
er
is
p
r
esen
ted
with
v
is
u
al
s
tim
u
li
b
lin
k
in
g
at
d
if
f
er
en
t
f
r
eq
u
e
n
cies
[
1
2
]
.
T
h
e
class
if
icatio
n
alg
o
r
ith
m
in
th
is
ca
s
e
m
u
s
t
d
eter
m
in
e
wh
ich
is
th
e
p
r
e
d
o
m
in
an
t
f
r
e
q
u
en
c
y
in
th
e
o
b
tai
n
ed
r
ec
o
r
d
.
Mix
ed
s
ch
em
es
m
ay
also
b
e
u
s
ed
,
with
s
tim
u
li f
lash
in
g
in
b
o
th
d
if
f
e
r
e
n
t f
r
eq
u
en
cies a
n
d
p
h
ases
[
4
]
.
2
.
3
.
2
.
G
ener
a
l schem
e
o
f
t
he
dev
ice
I
n
th
is
ar
ticle
a
So
C
-
FP
GA
was
u
s
ed
to
im
p
lem
e
n
t
a
SS
VE
P
-
b
ased
B
C
I
with
f
r
eq
u
en
c
y
en
co
d
in
g
.
T
h
e
E
E
G
s
ig
n
al
is
m
ea
s
u
r
ed
u
s
in
g
wet
elec
tr
o
d
es
in
th
e
u
s
er
'
s
o
cc
ip
ital
ar
ea
.
I
t
th
en
g
o
e
s
th
r
o
u
g
h
a
s
tag
e
o
f
an
alo
g
s
ig
n
al
co
n
d
itio
n
in
g
,
b
e
f
o
r
e
b
ein
g
d
i
g
itized
b
y
t
h
e
L
T
C
2
3
0
8
ADC,
a
v
ailab
le
o
n
th
e
d
e1
0
-
n
a
n
o
b
o
ar
d
.
T
h
e
s
ig
n
al
is
s
to
r
e
d
in
ter
n
ally
an
d
p
r
o
ce
s
s
ed
u
s
in
g
FF
T
alg
o
r
ith
m
in
th
e
FP
GA,
an
d
is
late
r
tr
an
s
f
er
r
e
d
to
th
e
m
icr
o
p
r
o
ce
s
s
o
r
th
r
o
u
g
h
a
n
in
t
eg
r
ated
b
u
s
.
T
h
e
m
icr
o
p
r
o
ce
s
s
o
r
is
r
esp
o
n
s
ib
le
o
f
im
p
lem
en
t
in
g
a
s
p
eller
a
n
d
a
s
ig
n
al
g
r
ap
h
i
n
g
to
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l,
u
s
in
g
th
e
in
f
o
r
m
atio
n
p
r
o
v
id
e
d
b
y
th
e
FP
GA.
At
th
e
s
am
e
tim
e,
5
v
is
u
al
s
tim
u
li
o
f
d
if
f
er
en
t
f
r
e
q
u
en
cies
ar
e
g
en
e
r
ated
,
wh
ich
allo
w
th
e
u
s
er
to
co
n
tr
o
l
th
e
d
ev
ice.
T
h
e
d
esig
n
o
f
th
e
s
y
s
tem
was
p
lan
n
ed
in
a
m
o
d
u
lar
way
,
s
ee
k
in
g
th
at
ea
ch
m
o
d
u
le
s
er
v
es
a
s
p
ec
if
ic
p
u
r
p
o
s
e
a
n
d
is
in
d
ep
en
d
en
t
o
f
th
e
o
th
er
s
.
I
n
th
is
way
,
a
wid
el
y
r
eu
s
ab
le
s
y
s
tem
is
ac
h
iev
ed
.
Fig
u
r
e
1
s
h
o
ws
a
g
en
e
r
al
d
iag
r
am
o
f
t
h
e
im
p
lem
en
ted
d
e
v
ice.
Fig
u
r
e
1
.
Gen
e
r
al
s
ch
em
e
o
f
t
h
e
d
ev
ice
2
.
3
.
3
.
Sig
na
l c
o
nd
it
io
nin
g
s
t
a
g
e
a
nd
is
o
la
t
io
n ba
rr
ier
T
h
e
E
E
G
s
ig
n
al’
s
am
p
litu
d
e
i
s
b
etwe
en
2
-
1
0
0
µ
V,
its
f
r
e
q
u
en
cy
r
an
g
es
f
r
o
m
0
.
5
Hz
to
1
0
0
Hz,
it’s
m
o
u
n
ted
o
n
a
DC
co
m
p
o
n
en
t
th
at
ca
n
r
ea
ch
h
u
n
d
r
ed
s
o
f
m
V
(
elec
tr
o
d
e
p
o
ten
tials
)
an
d
it’s im
m
er
s
ed
in
n
o
is
e
an
d
elec
tr
o
m
ag
n
etic
in
ter
f
er
e
n
ce
[
1
7
]
.
On
ce
th
e
s
ig
n
a
l
is
m
ea
s
u
r
ed
th
r
o
u
g
h
t
h
e
wet
elec
tr
o
d
es
an
an
alo
g
ic
co
n
d
itio
n
in
g
s
tag
e
n
ee
d
s
to
b
e
p
r
o
v
id
ed
,
to
en
a
b
le
its
ac
q
u
is
itio
n
with
th
e
ADC
in
teg
r
at
ed
in
th
e
b
o
ar
d
(
1
2
b
its
,
s
u
cc
ess
iv
e
ap
p
r
o
x
im
atio
n
s
)
.
Fo
r
th
is
p
u
r
p
o
s
e,
a
o
n
e
ch
an
n
el
AC
co
u
p
led
d
if
f
er
en
tial
am
p
li
f
ier
was
u
s
ed
[
1
8
]
.
T
h
is
cir
cu
it
p
r
o
v
id
es
an
am
p
lific
atio
n
o
f
5
8
3
2
,
an
d
in
c
lu
d
es
a
f
ee
d
b
ac
k
s
tag
e
th
r
o
u
g
h
a
th
ir
d
elec
tr
o
d
e,
with
th
e
p
u
r
p
o
s
e
o
f
r
ed
u
ci
n
g
t
h
e
co
m
m
o
n
m
o
d
e
v
o
ltag
e
in
t
h
e
d
if
f
er
e
n
tial
p
air
(
u
s
u
ally
ca
lled
a
d
r
iv
en
r
ig
h
t
leg
cir
cu
it,
o
r
DR
L
,
i
n
th
e
b
i
b
lio
g
r
ap
h
y
[
1
9
]
)
.
T
h
e
s
am
e
a
m
p
lific
atio
n
s
tag
e,
with
a
lo
w
er
d
if
f
er
en
tial
m
o
d
e
g
ain
,
ca
n
b
e
u
s
ed
f
o
r
o
b
tain
i
n
g
elec
tr
o
m
y
o
g
r
ap
h
ic
(
E
MG
)
[
2
0
]
o
r
elec
tr
o
ca
r
d
io
g
r
a
p
h
ic
(
E
C
G)
[
1
8
]
,
[
2
1
]
s
ig
n
als.
T
h
e
am
p
lifie
r
was
c
o
m
p
lem
en
ted
with
an
i
n
teg
r
a
ted
m
ed
ical
g
r
ad
e
is
o
lato
r
A
DUM
6
4
0
1
,
f
o
r
its
p
o
wer
s
u
p
p
l
y
,
an
d
an
o
p
tical
is
o
latio
n
am
p
lifie
r
b
ased
o
n
t
h
e
I
L
3
0
0
o
p
to
co
u
p
ler
,
t
o
is
o
late
th
e
s
ig
n
al
at
its
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Reco
n
f
ig
u
r
a
b
le
&
E
m
b
ed
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Sy
s
t
I
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N:
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4
SoC
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F
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s
ystems
fo
r
th
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cq
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d
p
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s
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… (
Ma
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vier O
liva
)
241
o
u
tp
u
t
[
2
2
]
,
s
af
eg
u
ar
d
in
g
th
e
in
teg
r
ity
o
f
th
e
u
s
er
.
An
an
alo
g
ic
an
ti
-
aliasin
g
ac
tiv
e
f
ilter
with
cu
t
o
f
f
f
r
eq
u
e
n
cy
o
f
1
6
0
Hz
was a
ls
o
ad
d
ed
to
th
e
s
et.
2
.
3
.
4
.
Vis
ua
l st
im
uli
T
o
g
e
n
er
ate
th
e
v
is
u
al
s
tim
u
li
b
y
wh
ich
t
h
e
u
s
er
co
n
t
r
o
ls
th
e
d
ev
ice,
5
m
atr
ices
o
f
r
ed
L
E
D
lig
h
ts
,
f
lash
in
g
at
1
4
,
1
6
,
1
8
,
2
0
an
d
2
2
Hz,
wer
e
u
s
ed
.
T
h
ese
v
is
u
al
s
tim
u
li
wer
e
s
u
ited
h
o
r
izo
n
tally
,
in
lin
e
with
th
e
o
p
tio
n
s
av
ailab
le
in
th
e
u
s
er
in
ter
f
ac
e,
as
s
ee
n
in
Fig
u
r
e
2
.
I
n
o
r
d
er
to
c
o
r
r
ec
tly
r
eg
is
ter
th
e
SS
VE
P
p
h
en
o
m
en
o
n
it’s
c
o
n
v
e
n
ien
t
t
h
at
th
e
p
er
io
d
icity
o
f
th
e
s
tim
u
li
is
s
y
n
ch
r
o
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ized
with
th
e
s
i
g
n
al
s
am
p
lin
g
tim
e
s
o
th
e
s
am
e
t
im
er
,
s
et
at
1
/1
0
2
4
s
an
d
g
e
n
er
ated
i
n
th
e
FP
GA,
was u
s
ed
to
co
n
tr
o
l b
o
t
h
m
o
d
u
les.
Fig
u
r
e
2
.
Vis
u
al
s
tim
u
li lay
o
u
t
2
.
3
.
5
.
L
o
w
lev
el
pro
ce
s
s
ing
T
h
e
ac
q
u
is
itio
n
a
n
d
s
to
r
ag
e
o
f
th
e
s
ig
n
al
an
d
th
e
ca
lc
u
latio
n
o
f
its
FF
T
wer
e
im
p
lem
e
n
ted
in
th
e
FP
GA,
co
d
ed
u
s
in
g
th
e
Ver
ilo
g
h
a
r
d
war
e
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)
.
Fig
u
r
e
3
s
h
o
ws
in
m
o
r
e
d
etail
th
e
d
if
f
er
en
t
m
o
d
u
les
th
at
m
ak
e
u
p
th
e
d
ig
ital
d
esig
n
.
T
h
ese
ar
e
th
e
ADC
d
r
iv
er
,
th
e
v
is
u
al
s
tim
u
li
d
r
iv
er
,
th
e
tim
er
,
th
e
FF
T
m
o
d
u
le,
an
d
m
em
o
r
ies
an
d
c
o
n
tr
o
l
s
ig
n
als
th
at
in
te
r
f
ac
es
th
e
s
y
s
tem
wi
th
th
e
HPS.
I
n
th
is
d
esig
n
a
NI
OS
2
s
o
f
t
p
r
o
ce
s
s
o
r
was
also
in
clu
d
e
d
.
T
h
e
wh
o
le
d
esig
n
is
s
y
n
ch
r
o
n
ized
th
r
o
u
g
h
a
5
0
MH
z
clo
ck
,
av
ailab
le
in
th
e
d
e
1
0
-
n
a
n
o
b
o
a
r
d
.
Fig
u
r
e
3
.
FP
GA
im
p
lem
en
tati
o
n
d
etail
T
h
e
v
is
u
al
s
tim
u
li
a
r
e
c
o
n
tr
o
l
led
th
r
o
u
g
h
a
m
o
d
u
le
th
at
co
u
n
ts
p
o
s
itiv
e
e
d
g
es
o
n
th
e
tim
er
’
s
clo
ck
,
g
en
er
atin
g
s
q
u
ar
e
s
ig
n
als
o
f
th
e
d
esire
d
f
r
e
q
u
en
cies
th
a
t
ar
e
s
y
n
ch
r
o
n
ized
with
th
e
tim
er
.
T
h
e
ADC
L
T
C
2
3
0
8
,
ex
ter
n
al
to
th
e
So
C
b
u
t
in
clu
d
ed
o
n
th
e
b
o
ar
d
,
is
d
r
iv
en
b
y
SP
I
p
r
o
to
c
o
l
th
r
o
u
g
h
a
d
ed
icate
d
m
o
d
u
le.
T
h
e
tim
er
f
ix
es
th
e
s
am
p
le
r
ate
at
1
0
2
4
s
am
p
les
p
er
s
ec
o
n
d
(
s
p
s
)
.
T
h
e
s
am
p
les
f
r
o
m
th
e
ADC
ar
e
f
ir
s
tly
s
to
r
ed
in
an
in
ter
n
al
b
u
f
f
er
,
with
a
ca
p
ac
ity
o
f
5
1
2
s
a
m
p
les.
On
ce
th
is
b
u
f
f
er
is
f
ille
d
th
e
ca
lcu
latio
n
o
f
th
e
s
am
p
le’
s
5
12
-
p
o
in
t
FF
T
tak
es
p
lace
,
a
n
d
b
o
t
h
th
e
r
aw
a
n
d
th
e
p
r
o
ce
s
s
ed
s
am
p
les
ar
e
s
to
r
ed
in
m
em
o
r
ies
s
h
ar
ed
with
th
e
HPS,
wh
ic
h
i
s
n
o
tifie
d
.
T
h
is
p
r
o
ce
s
s
is
co
n
tr
o
lled
an
d
m
o
n
ito
r
e
d
b
y
th
e
NI
OS
2
p
r
o
ce
s
s
o
r
,
wh
ich
is
a
"so
f
t"
p
r
o
ce
s
s
o
r
,
i.
e.
,
p
r
o
g
r
am
m
ed
in
t
o
th
e
lo
g
ic
ce
lls
o
f
th
e
FP
GA.
T
h
e
u
s
e
o
f
th
is
p
r
o
ce
s
s
o
r
wa
s
co
n
s
id
er
ed
v
ital
in
th
e
s
y
s
tem
d
ev
elo
p
m
en
t
an
d
d
eb
u
g
g
i
n
g
s
tag
e,
s
in
ce
it
p
r
o
v
id
es
g
r
ea
ter
v
er
s
atility
an
d
co
n
tr
o
l o
v
er
th
e
d
if
f
er
en
t stag
es o
f
th
e
p
r
o
ce
s
s
,
an
d
ca
n
b
e
p
r
o
g
r
am
m
ed
ea
s
ily
th
r
o
u
g
h
a
h
ar
d
war
e
ab
s
tr
ac
tio
n
la
y
er
(
HAL
)
p
r
o
v
id
e
d
b
y
I
n
te
l
Alter
a.
I
n
a
f
u
tu
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e
im
p
lem
en
tatio
n
o
f
th
e
s
y
s
tem
,
it
co
u
ld
b
e
d
is
p
en
s
ed
with
,
Evaluation Warning : The document was created with Spire.PDF for Python.
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20
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8
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&
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m
b
ed
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Sy
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er
2
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2
1
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237
–
2
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8
242
d
ev
elo
p
in
g
s
o
m
e
d
ir
ec
t
co
m
m
u
n
icatio
n
b
etwe
en
th
e
ADC
d
r
iv
er
an
d
th
e
FF
T
m
o
d
u
le.
T
h
is
wo
u
ld
allo
w
a
m
o
r
e
ef
f
icien
t
s
y
s
tem
,
wh
ile
s
av
in
g
s
p
ac
e
in
th
e
FP
GA
lo
g
ic
ce
lls
.
No
p
r
e
-
p
r
o
ce
s
s
in
g
i
s
co
n
d
u
cted
o
n
th
e
s
am
p
les
p
r
o
v
id
e
d
b
y
th
e
ADC
b
ef
o
r
e
in
p
u
t
t
in
g
th
em
to
t
h
e
FF
T
m
o
d
u
le,
s
in
ce
it
was
c
o
n
s
id
er
ed
u
n
n
ec
ess
ar
y
f
o
r
t
h
e
a
p
p
licatio
n
in
ten
d
e
d
at
th
is
s
tag
e.
I
n
f
u
tu
r
e
im
p
le
m
en
tatio
n
s
o
f
th
e
s
y
s
tem
th
e
d
ata
c
o
u
ld
b
e
p
r
e
-
p
r
o
ce
s
s
ed
u
s
in
g
FIR [
2
3
]
o
r
I
I
R
[
2
4
]
f
ilter
s
,
to
r
ed
u
ce
th
e
o
f
f
-
b
an
d
n
o
is
e,
an
d
ad
ap
tativ
e
f
il
ter
s
,
f
o
r
ex
am
p
le
a
least
-
m
ea
n
s
q
u
ar
e
f
ilter
[
2
5
]
,
to
r
e
d
u
ce
t
h
e
o
n
-
b
a
n
d
n
o
is
e
,
p
r
o
d
u
ce
d
b
y
m
u
s
cle
ar
t
i
f
ac
t
s
.
T
h
is
will
s
u
r
ely
r
esu
lt in
a
m
o
r
e
r
o
b
u
s
t sy
s
tem
.
T
h
e
m
o
d
u
le
th
at
im
p
lem
en
t
s
th
e
FF
T
i
s
m
ad
e
u
p
o
f
t
wo
p
ar
ts
.
A
co
r
e
p
r
o
v
id
ed
b
y
[
2
6
]
is
r
esp
o
n
s
ib
le
f
o
r
ca
lcu
latin
g
th
e
5
1
2
-
p
o
in
t
FF
T
with
a
s
er
ial
i
n
p
u
t/o
u
t
p
u
t
in
ter
f
ac
e,
wh
ile
t
wo
FIFO
m
em
o
r
ies
an
d
d
ed
icate
d
lo
g
ic
s
o
lv
e
th
e
in
p
u
t/o
u
tp
u
t
in
ter
f
ac
e
with
th
e
NI
OS
p
r
o
ce
s
s
o
r
.
T
h
e
co
r
e
r
ec
eiv
es
in
p
u
t
s
am
p
les
in
1
2
-
b
it
f
o
r
m
at,
co
m
p
u
tes
th
e
FF
T
an
d
p
r
o
v
id
es
1
6
-
b
it
o
u
tp
u
ts
,
tr
u
n
ca
tin
g
th
e
v
alu
es
if
n
ec
ess
ar
y
.
T
o
h
elp
r
ed
u
ce
t
h
e
in
ter
n
al
tr
u
n
ca
tio
n
er
r
o
r
o
f
th
e
co
r
e,
wh
ile
k
ee
p
in
g
th
e
r
eso
u
r
ce
u
tili
za
tio
n
r
ea
s
o
n
ab
le
,
all
th
e
co
m
p
u
tatio
n
s
in
s
id
e
o
f
it
ar
e
ca
r
r
ied
o
u
t
in
2
0
-
b
it
wo
r
d
s
.
T
h
is
in
clu
d
es
th
e
twid
d
le
f
ac
to
r
s
n
ec
ess
ar
y
f
o
r
co
m
p
u
tatio
n
,
th
at
a
r
e
s
to
r
ed
i
n
lo
o
k
-
u
p
tab
les
to
a
v
o
id
h
av
i
n
g
to
co
m
p
u
te
th
em
o
n
th
e
f
ly
.
T
h
e
co
m
b
in
atio
n
o
f
a
5
1
2
-
p
o
in
t
FF
T
with
a
s
a
m
p
li
n
g
f
r
eq
u
en
cy
o
f
1
0
2
4
s
p
s
g
iv
es
th
e
s
y
s
tem
a
f
r
eq
u
en
cy
r
eso
lu
tio
n
o
f
2
Hz,
s
o
th
at
all
th
e
f
r
eq
u
en
cies
o
f
in
ter
est
(
1
4
,
1
6
,
1
8
,
2
0
a
n
d
2
2
Hz)
co
r
r
esp
o
n
d
to
wh
o
le
b
ea
m
s
o
f
th
e
FF
T
,
m
in
im
izin
g
th
e
s
p
ec
tr
al
leak
a
g
e.
On
ce
th
e
co
m
p
u
tatio
n
is
d
o
n
e
th
e
o
u
tp
u
t
o
f
th
e
FF
T
i
s
s
to
r
ed
in
3
2
-
b
it
len
g
th
wo
r
d
s
,
to
f
ac
ilit
ate
its
in
ter
f
ac
e
with
th
e
r
est o
f
th
e
s
y
s
tem
.
I
n
o
r
d
er
to
im
p
lem
en
t
co
m
m
u
n
icatio
n
b
etwe
en
t
h
e
m
o
d
u
l
es,
two
d
if
f
er
en
t
s
tan
d
a
r
d
Al
ter
a
b
u
s
es
wer
e
u
s
ed
,
as
s
h
o
wn
i
n
Fig
u
r
e
4
.
W
h
en
th
e
ADC
d
r
iv
er
n
o
tifie
s
th
at
th
e
5
1
2
s
am
p
les
a
r
e
av
ailab
le
in
th
e
“Raw
s
ig
n
al
m
em
o
r
y
”,
th
e
NI
OS
2
p
r
o
ce
s
s
o
r
tr
an
s
f
er
s
th
em
to
a
f
ir
s
t
in
f
ir
s
t
o
u
t
(
FIFO)
m
em
o
r
y
(
FIFO
1
in
th
e
f
ig
u
r
e)
.
T
h
ese
tr
an
s
f
er
s
a
r
e
m
an
ag
ed
b
y
an
A
v
alo
n
m
em
o
r
y
m
a
p
p
ed
in
te
r
f
ac
e,
wh
i
ch
is
well
s
u
ited
to
im
p
lem
en
t
r
ea
d
an
d
w
r
ite
in
ter
f
ac
es
f
o
r
m
aster
an
d
s
lav
e
co
m
p
o
n
en
ts
s
u
ch
as
th
is
.
T
h
en
th
e
d
ata
f
lo
ws
th
r
o
u
g
h
th
e
FF
T
.
Fo
r
th
is
,
Av
alo
n
s
tr
ea
m
in
g
in
ter
f
ac
es,
wh
i
ch
ar
e
id
ea
l
f
o
r
lo
w
-
laten
cy
,
u
n
id
ir
ec
tio
n
al
d
ata
tr
an
s
f
er
s
,
wer
e
u
s
ed
.
Fin
ally
,
t
h
e
p
r
o
ce
s
s
ed
d
ata
is
av
ailab
le
in
an
o
t
h
er
FIFO
m
e
m
o
r
y
(
FIF
O
2
in
th
e
f
ig
u
r
e)
,
an
d
th
e
NI
OS
2
p
r
o
ce
s
s
o
r
tr
a
n
s
f
er
s
th
em
t
o
th
e
“
p
r
o
ce
s
s
ed
s
ig
n
al
m
em
o
r
y
”
,
u
s
in
g
Av
al
o
n
m
e
m
o
r
y
m
a
p
p
e
d
in
ter
f
ac
es
ag
ain
.
T
h
is
m
em
o
r
y
,
alo
n
g
s
id
e
with
th
e
“
r
aw
s
ig
n
al
m
em
o
r
y
”
is
av
ailab
le
to
t
h
e
HPS,
th
r
o
u
g
h
th
e
lig
h
tweig
h
t
-
AXI
b
u
s
.
B
o
th
m
em
o
r
ies,
im
p
lem
en
ted
with
o
n
-
ch
ip
R
AM
,
s
to
r
e
d
ata
in
3
2
-
b
it len
g
th
wo
r
d
s
.
Fo
r
m
o
r
e
in
f
o
r
m
atio
n
ab
o
u
t th
e
A
v
alo
n
in
ter
f
ac
es r
ef
er
to
Alter
a
d
o
cu
m
e
n
tatio
n
[
2
7
]
.
Fig
u
r
e
4
.
FF
T
m
o
d
u
le
d
etail
2
.
3
.
6
.
H
P
S a
n
d F
P
G
A
co
m
mu
nica
t
io
n
I
n
ter
f
ac
in
g
th
e
FP
GA
an
d
th
e
HPS
in
v
o
lv
es
s
elec
tin
g
o
n
e
o
f
th
e
th
r
ee
b
u
s
es
in
teg
r
ated
in
th
e
So
C
-
FP
GA.
T
h
ese
ar
e:
th
e
FP
GA
-
to
-
HPS
B
r
id
g
e,
th
e
HPS
-
to
-
F
PGA
B
r
id
g
e
an
d
th
e
L
ig
h
tweig
h
t
HPS
-
to
-
FP
GA
B
r
id
g
e.
I
n
th
is
d
esig
n
th
er
e
ar
e
n
o
HPS’s
s
lav
es
th
at
n
ee
d
to
b
e
c
o
n
tr
o
lled
f
r
o
m
th
e
FP
GA,
all
th
e
tr
an
s
ac
tio
n
s
th
at
n
ee
d
to
tak
e
p
lace
h
a
v
e
a
m
ax
im
u
m
wid
th
o
f
3
2
b
its
,
an
d
th
er
e
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n
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ee
d
f
o
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a
h
ig
h
-
b
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d
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u
s
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s
in
ce
all
th
e
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l
tim
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o
ce
s
s
in
g
ta
k
es
p
l
ac
e
in
th
e
FP
GA
f
ab
r
ic.
Fo
r
th
ese
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ea
s
o
n
s
th
e
lig
h
tweig
h
t
HPS
-
to
-
FP
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B
r
id
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e
was
s
elec
ted
.
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h
is
b
u
s
is
d
r
iv
en
b
y
a
1
0
0
MH
z
clo
c
k
,
h
as
a
f
ix
e
d
d
ata
wid
th
o
f
3
2
b
its
an
d
ex
p
o
s
es
an
in
ter
f
ac
e
th
at
th
e
u
s
er
ca
n
co
n
n
ec
t
to
A
v
alo
n
Me
m
o
r
y
Ma
p
p
ed
s
lav
e
in
ter
f
ac
es.
T
h
e
m
a
n
u
f
ac
tu
r
er
r
ec
o
m
m
en
d
s
its
u
s
e
f
o
r
lo
w
-
b
a
n
d
wid
th
tr
af
f
ic
[
2
7
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Reco
n
f
ig
u
r
a
b
le
&
E
m
b
ed
d
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Sy
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t
I
SS
N:
2089
-
4
8
6
4
SoC
-
F
P
GA
s
ystems
fo
r
th
e
a
cq
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is
itio
n
a
n
d
p
r
o
ce
s
s
in
g
o
f e
le
ctro
en
ce
p
h
a
lo
g
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p
h
ic
… (
Ma
t
ía
s
Ja
vier O
liva
)
243
2
.
3
.
7
.
H
ig
h lev
el
pro
ce
s
s
ing
T
h
e
h
ig
h
-
lev
el
p
r
o
ce
s
s
in
g
was
co
d
ed
in
th
e
h
a
r
d
p
r
o
ce
s
s
o
r
s
y
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tem
(
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f
th
e
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e
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ice.
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h
is
m
o
d
u
le
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as
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ir
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t
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s
to
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n
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ed
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ig
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al
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las
t
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d
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w
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f
5
1
2
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am
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les.
As
s
ee
n
in
Fig
u
r
e
5
,
in
f
o
r
m
atio
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ir
ec
tly
m
ap
p
e
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e
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ir
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al
m
em
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ed
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x
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n
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t
h
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ce
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r
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e
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ar
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ter
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em
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p
r
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r
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n
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s
th
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ev
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r
e
ad
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o
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m
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ich
is
s
y
n
ch
r
o
n
ized
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y
t
h
e
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m
o
d
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les
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o
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g
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n
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o
l
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ig
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als.
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n
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is
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ch
em
e
th
e
d
e
v
elo
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er
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n
d
esig
n
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ig
h
lev
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r
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s
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s
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ls
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at
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e
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r
s
h
e
is
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o
r
e
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s
ed
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.
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r
th
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ar
ticle
a
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if
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alg
o
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ith
m
an
d
a
s
p
eller
wer
e
p
r
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r
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ed
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C
#
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ec
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t
h
em
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r
o
u
g
h
th
e
m
o
n
o
im
p
lem
en
tatio
n
o
f
th
e
.
NE
T
f
r
am
ewo
r
k
[
2
8
]
.
I
n
ea
ch
tim
e
-
win
d
o
w
(
5
1
2
s
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les
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5
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o
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ag
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itu
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ig
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FF
T
at
th
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f
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eq
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en
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f
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ter
est
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1
4
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1
6
,
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d
2
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,
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ain
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t
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ea
n
,
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e
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ig
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est o
n
e.
I
f
a
f
r
eq
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e
n
cy
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s
elec
ted
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th
r
ee
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n
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ec
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tiv
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tim
e
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win
d
o
ws it’
s
in
f
er
r
ed
th
at
th
e
u
s
er
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lo
o
k
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g
at
th
e
v
is
u
al
s
tim
u
lu
s
r
elate
d
to
th
at
f
r
eq
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e
n
cy
.
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n
g
th
is
s
y
s
tem
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a
u
s
er
ca
n
s
elec
t
b
etwe
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iv
e
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if
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er
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t
o
p
tio
n
s
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t
m
o
v
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y
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th
e
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m
u
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cle
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es.
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io
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o
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th
e
th
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ee
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n
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ec
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tiv
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o
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ted
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ed
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ce
th
e
p
r
o
b
ab
ilit
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o
f
f
alse
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o
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itiv
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with
th
e
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wn
s
id
e
o
f
r
ed
u
ci
n
g
th
e
ac
h
iev
ab
le
I
T
R
o
f
th
e
s
y
s
t
em
.
B
y
r
elatin
g
ea
ch
o
f
th
e
v
is
u
al
s
tim
u
lu
s
to
a
s
y
m
b
o
l
in
th
e
s
cr
ee
n
a
s
p
eller
was
im
p
lem
e
n
ted
.
T
h
e
s
y
s
tem
allo
ws
th
e
u
s
er
to
s
elec
t
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etwe
en
5
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m
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ls
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o
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ir
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tag
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th
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GUI
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wh
ich
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n
b
e
s
ee
n
i
n
Fig
u
r
e
1
,
ask
s
th
e
u
s
er
to
s
elec
t
b
etwe
en
f
iv
e
g
r
o
u
p
s
o
f
f
i
v
e
letter
s
.
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ater
,
in
a
s
ec
o
n
d
s
tag
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th
e
u
s
er
is
ask
ed
to
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t
b
etwe
en
th
e
f
iv
e
letter
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o
f
th
e
s
elec
ted
g
r
o
u
p
.
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n
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th
is
s
ch
em
e,
a
to
tal
am
o
u
n
t
o
f
2
5
letter
s
ca
n
b
e
s
elec
ted
,
with
a
m
in
im
u
m
tim
e
o
f
3
s
ec
o
n
d
s
p
er
s
elec
tio
n
(
1
,
5
s
ec
o
n
d
p
e
r
co
m
m
a
n
d
)
.
T
h
e
“Y”
letter
was
o
m
itted
d
u
e
to
its
lo
w
ap
p
ea
r
an
ce
in
th
e
Sp
an
is
h
lan
g
u
ag
e
.
T
h
e
GUI
also
p
r
o
v
id
es
th
e
u
s
er
with
p
r
o
g
r
ess
b
ar
s
,
r
elate
d
to
th
e
th
r
ee
s
u
cc
ess
iv
e
s
elec
tio
n
s
,
an
d
th
e
p
o
s
s
ib
ilit
y
o
f
o
b
s
er
v
i
n
g
th
e
r
aw
an
d
p
r
o
ce
s
s
ed
s
ig
n
al
g
r
ap
h
ics.
Fig
u
r
e
5
.
HPS m
o
d
u
le
d
etail
3.
RE
SU
L
T
S AN
D
D
I
SCU
SS
I
O
N
3
.
1
.
Usa
g
e
o
f
F
P
G
A
re
s
o
urce
s
T
h
e
d
esig
n
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im
p
lem
e
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ted
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th
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e
1
0
-
n
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n
o
b
o
ar
d
.
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ab
le
1
s
u
m
m
ar
izes
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e
r
eso
u
r
ce
s
u
tili
ze
d
to
f
it
it
o
n
th
e
b
o
ar
d
.
T
h
is
s
u
m
m
ar
y
s
h
o
ws
th
at
th
e
d
esig
n
wo
u
ld
ev
en
f
it
in
s
m
aller
FP
GA
d
ev
ices,
an
d
th
at
th
er
e
ar
e
p
len
t
y
o
f
r
eso
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r
ce
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lef
t
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im
p
lem
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t
f
u
r
th
er
s
i
g
n
al
p
r
o
c
ess
in
g
elem
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ts
.
Ad
d
itio
n
ally
Fig
u
r
e
6
s
h
o
w
s
th
e
f
lo
o
r
p
lan
o
f
th
e
p
r
o
p
o
s
ed
s
y
s
tem
,
o
b
tain
ed
f
r
o
m
th
e
ch
ip
p
lan
n
e
r
p
e
r
s
p
ec
tiv
e
o
n
t
h
e
s
o
f
twar
e
p
r
o
v
id
e
d
b
y
Alter
a,
f
o
r
th
e
C
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n
e
V
5
C
SEBA6
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3
I
7
s
y
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tem
.
T
h
is
Fig
u
r
e
illu
s
tr
ates
t
h
e
ar
ea
co
v
er
e
d
b
y
th
e
o
r
ch
estra
ted
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it,
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ich
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e
r
eg
io
n
c
o
v
er
e
d
b
y
s
q
u
ar
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h
ap
es b
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s
.
T
ab
le
1
.
R
eso
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r
ce
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tili
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tio
n
U
sed
A
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b
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e
r
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y
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e
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i
s
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s
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6
5
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2
0
1
2
%
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
20
89
-
4
8
6
4
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f
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&
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m
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em
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er
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1
:
237
–
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4
8
244
Fig
u
r
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6
.
Flo
o
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p
lan
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th
e
p
r
o
p
o
s
ed
s
y
s
tem
3
.
2
.
Reg
is
t
er
t
ra
ns
f
er
lev
el
dia
g
r
a
m
o
f
t
he
s
y
s
t
em
Fig
u
r
e
7
s
h
o
ws
th
e
r
e
g
is
ter
tr
an
s
f
er
lev
el
(
R
T
L
)
d
iag
r
a
m
o
f
th
e
p
r
o
p
o
s
ed
s
y
s
tem
.
T
h
e
b
lo
c
k
in
d
icate
d
as
“so
c_
s
y
s
tem
:
A
DC
”
is
g
en
er
ated
b
y
th
e
s
y
s
tem
in
teg
r
atio
n
to
o
l
(
k
n
o
w
n
as
QSYS)
o
f
th
e
s
o
f
twar
e
p
r
o
v
id
e
d
b
y
I
n
tel
Alter
a,
an
d
in
clu
d
es
th
e
ADC
in
t
er
f
ac
e,
th
e
FF
T
co
r
e
an
d
in
ter
co
n
n
ec
tio
n
s
,
FIFO
m
em
o
r
ies,
th
e
Nio
s
2
p
r
o
ce
s
s
o
r
,
t
h
e
n
ec
ess
ar
y
m
em
o
r
y
f
o
r
its
o
p
er
atio
n
an
d
th
e
HPS
in
ter
f
ac
e,
as
well
as
s
o
m
e
in
ter
co
n
n
ec
tio
n
b
l
o
ck
s
g
en
er
ated
b
y
th
e
to
o
l.
T
h
e
d
etail
o
f
th
is
b
lo
ck
is
s
h
o
wn
in
Fig
u
r
e
8
.
Fig
u
r
e
7
.
R
T
L
d
ia
g
r
a
m
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J Reco
n
f
ig
u
r
a
b
le
&
E
m
b
ed
d
ed
Sy
s
t
I
SS
N:
2089
-
4
8
6
4
SoC
-
F
P
GA
s
ystems
fo
r
th
e
a
cq
u
is
itio
n
a
n
d
p
r
o
ce
s
s
in
g
o
f e
le
ctro
en
ce
p
h
a
lo
g
r
a
p
h
ic
… (
Ma
t
ía
s
Ja
vier O
liva
)
245
Fig
u
r
e
8
.
Deta
il o
f
th
e
“so
c_
s
y
s
tem
: A
DC
”
m
o
d
u
le
3
.
3
.
E
s
t
im
a
t
io
n o
f
t
he
s
y
s
t
em’
s
la
t
ency
Af
ter
ea
ch
0
.
5
s
ec
o
n
d
s
tim
e
-
win
d
o
w,
th
e
ca
lcu
latio
n
o
f
th
e
FF
T
i
s
co
n
d
u
cted
an
d
th
e
in
f
o
r
m
atio
n
is
tr
an
s
f
er
r
ed
to
th
e
HPS
m
o
d
u
l
e.
T
h
is
r
esu
lts
in
a
laten
cy
b
et
wee
n
th
e
f
illi
n
g
o
f
th
e
m
em
o
r
ies
an
d
th
e
m
o
m
e
n
t
wh
en
th
e
in
f
o
r
m
atio
n
is
av
aila
b
le
to
th
e
u
s
er
.
T
h
is
laten
cy
is
m
ad
e
u
p
o
f
th
e
tim
e
th
e
NI
O
S
2
p
r
o
ce
s
s
o
r
tak
es
to
tr
an
s
f
er
th
e
s
am
p
les
f
r
o
m
t
h
e
in
ter
m
e
d
iate
FIFO
m
em
o
r
i
es
(
FIFO
1
a
n
d
FIFO
2
in
Fi
g
u
r
e
4
)
,
th
e
tim
e
it
tak
es
th
e
s
am
p
les
to
f
lo
w
th
r
o
u
g
h
th
e
FF
T
,
th
e
tim
e
th
at
tak
es
th
e
L
ig
h
tweig
h
t
HPS
t
o
FP
GA
b
r
id
g
e
to
co
n
d
u
ct
t
h
e
tr
an
s
ac
tio
n
s
b
etw
ee
n
th
e
m
o
d
u
les,
an
d
th
e
tim
e
it
tak
es
th
e
d
ec
is
io
n
alg
o
r
ith
m
to
d
ec
id
e
b
etwe
en
th
e
d
if
f
er
e
n
t sti
m
u
li.
T
h
e
NI
OS 2
p
r
o
ce
s
s
o
r
is
d
r
iv
en
b
y
th
e
s
am
e
5
0
MH
z
clo
ck
t
h
an
th
e
wh
o
le
s
y
s
tem
,
b
u
t
th
e
clo
ck
th
at
d
r
iv
es
th
e
h
ar
d
war
e
ab
s
tr
ac
tio
n
lay
er
(
HAL
)
f
r
o
m
wh
ich
t
h
e
in
s
tr
u
ctio
n
s
ar
e
co
n
d
u
cted
is
lo
wer
[
2
9
]
.
T
h
is
clo
ck
was
esti
m
ated
in
1
1
MH
z,
u
s
in
g
an
o
s
cillo
s
co
p
e
an
d
a
s
im
p
le
s
o
f
twar
e
r
o
u
tin
e.
T
h
e
FF
T
m
o
d
u
le
o
u
tp
u
ts
o
n
e
p
r
o
ce
s
s
ed
s
am
p
le
p
er
clo
ck
af
ter
a
d
ela
y
o
f
1
1
0
5
clo
ck
s
,
an
d
it
is
d
r
iv
en
b
y
a
5
0
MH
z
clo
ck
.
T
h
e
d
ec
is
io
n
alg
o
r
ith
m
tim
e
was
m
ea
s
u
r
ed
u
s
in
g
th
e
C
#
Diag
n
o
s
tics
lib
r
ar
y
,
r
esu
ltin
g
in
1
4
µs.
T
h
e
tr
an
s
ac
tio
n
s
b
etwe
en
th
e
HPS
an
d
th
e
FP
GA
in
C
y
clo
n
e
V
d
e
v
ices
h
as
b
ee
n
th
e
s
u
b
ject
o
f
t
h
e
s
tu
d
y
[
3
0
]
.
Alo
n
g
s
id
e
with
th
is
p
ap
er
an
E
x
ce
l
T
ab
le
is
p
r
o
v
id
e
d
th
at
allo
ws
th
e
u
s
er
s
to
s
ea
r
ch
th
e
m
ea
s
u
r
ed
t
r
an
s
f
er
r
ate
f
o
r
s
ev
e
r
al
m
o
d
es
o
f
o
p
er
atio
n
.
Fo
r
tr
a
n
s
f
er
r
in
g
4
0
9
6
B
y
tes
(
5
1
2
,
3
2
b
its
r
aw
an
d
p
r
o
ce
s
s
ed
s
am
p
les)
u
s
in
g
th
e
L
ig
h
tweig
h
t
HPS
-
to
-
FP
GA
b
u
s
,
th
e
An
g
s
tr
o
m
L
in
u
x
o
p
er
a
tin
g
s
y
s
tem
an
d
a
5
0
MH
z
cl
o
ck
f
o
r
th
e
FP
GA
a
2
0
,
0
8
MB/s
tr
an
s
f
er
r
ate
is
r
ep
o
r
ted
.
So
,
t
h
e
esti
m
ated
laten
c
y
(
L
)
is
g
iv
e
n
b
y
(
1
)
,
(
2
)
an
d
(
3
)
:
L
=
Ti
m
e
n
i
o
s
+
Ti
m
e
F
F
T
+
Ti
m
e
L
W
b
u
s
+
Ti
m
e
d
ecis
i
o
n
(
1
)
L
=
2
∗
512
∗
1
11
MHz
+
(
1105
+
512
)
∗
1
5
0
MHZ
+
2
∗
2048
20
.
0
8
MB
/
s
+
14µs
(
2
)
L
=
93µs
+
32µs
+
204µs
+
14µs
=
343µs
(
3
)
T
h
is
ca
lcu
latio
n
is
an
esti
m
ate
b
u
t
g
iv
es
an
id
ea
o
f
th
e
e
x
p
ec
ted
laten
cy
o
f
th
e
s
y
s
tem
.
As
it
ca
n
b
e
ap
p
r
ec
iated
t
h
e
co
m
p
o
n
en
ts
t
h
at
m
o
s
tly
co
n
tr
ib
u
te
with
th
is
tim
e
d
elay
ar
e
th
e
NI
OS
2
p
r
o
ce
s
s
o
r
a
n
d
th
e
L
ig
h
tweig
h
t
b
u
s
.
T
h
e
f
ir
s
t
o
n
e
ca
n
b
e
d
is
p
en
s
ed
with
in
f
u
tu
r
e
im
p
lem
en
tatio
n
s
,
wh
ile
th
e
s
ec
o
n
d
o
n
e
ca
n
b
e
r
ep
lace
d
with
th
e
HPS
-
to
-
FP
GA
b
u
s
wh
ich
s
u
p
p
o
r
t
1
2
8
-
b
it
tr
an
s
ac
tio
n
s
,
ac
h
iev
in
g
a
3
5
MB/s
tr
an
s
f
er
r
ate
in
th
ese
s
am
e
co
n
d
itio
n
s
[
3
0
]
.
A
h
ig
h
er
f
r
eq
u
e
n
cy
in
th
e
FP
GA
m
ay
also
b
e
u
s
ed
.
W
ith
o
u
t
an
y
ch
an
g
es
in
th
e
d
esig
n
a
q
u
ick
ev
al
u
atio
n
wit
h
th
e
tim
in
g
an
aly
ze
r
p
r
o
v
id
e
d
b
y
I
n
tel
Alter
a
s
h
o
ws
th
at
a
7
2
MH
z
clo
c
k
ca
n
b
e
ac
h
ie
v
ed
.
T
h
is
m
a
x
im
u
m
f
r
eq
u
en
c
y
is
c
o
m
p
u
te
d
as
th
e
m
ax
im
u
m
p
o
s
s
ib
le
at
wh
ich
t
h
e
tr
an
s
f
er
s
b
etwe
en
r
eg
is
ter
s
ar
e
co
n
d
u
cted
i
n
a
s
in
g
le
clo
ck
cy
cle.
I
t m
ay
b
e
f
u
r
th
er
in
cr
ea
s
ed
tak
in
g
s
p
ec
ial
c
ar
e
at
s
o
m
e
r
eg
is
ter
p
ath
s
,
an
d
ev
alu
atin
g
in
wh
ic
h
p
ath
s
th
is
co
n
d
itio
n
m
a
y
b
e
r
elax
ed
.
W
ith
th
at
b
ei
n
g
s
aid
,
t
h
e
au
th
o
r
s
co
n
s
id
er
th
at
a
laten
cy
o
n
th
e
o
r
d
er
o
f
th
e
h
u
n
d
r
ed
s
o
f
m
icr
o
s
ec
o
n
d
s
(
3
4
3
µs
in
o
u
r
ca
lcu
latio
n
)
is
ac
ce
p
tab
le,
as
it
is
alm
o
s
t in
d
is
tin
g
u
is
h
ab
le
f
o
r
th
e
u
s
er
.
3
.
4
.
Sp
eller
t
est
I
n
o
r
d
er
to
v
er
if
y
th
e
s
y
s
tem
’
s
o
v
er
all
p
er
f
o
r
m
a
n
ce
,
a
s
im
p
le
h
ig
h
-
lev
el
ex
p
er
i
m
en
t
was
co
n
d
u
cte
d
.
T
wo
u
s
er
s
,
o
n
e
with
n
o
p
r
ev
i
o
u
s
ex
p
er
ien
ce
i
n
h
an
d
lin
g
B
C
I
s
(
u
s
er
A)
an
d
o
n
e
ex
p
er
ie
n
ce
d
(
u
s
er
B
)
,
wer
e
ask
ed
to
s
elec
t le
tter
s
r
an
d
o
m
ly
.
I
n
th
e
b
est ca
s
es th
e
co
m
m
an
d
s
elec
tio
n
tim
e
f
o
r
u
s
er
A
was a
b
o
u
t 5
s
ec
o
n
d
s
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
20
89
-
4
8
6
4
I
n
t J Reco
n
f
ig
u
r
a
b
le
&
E
m
b
ed
d
ed
Sy
s
t
,
Vo
l.
10
,
No
.
3
,
No
v
em
b
er
2
0
2
1
:
237
–
2
4
8
246
b
u
t,
in
s
o
m
e
ca
s
es,
it
to
o
k
h
i
m
m
o
r
e
th
an
1
0
0
s
ec
o
n
d
s
to
s
elec
t
a
co
m
m
an
d
.
On
th
e
o
th
e
r
h
an
d
,
u
s
er
B
was
ab
le
to
ex
ec
u
te
a
co
m
m
a
n
d
ty
p
ically
b
etwe
en
5
a
n
d
1
0
s
ec
o
n
d
s
.
T
h
ese
r
esu
lts
,
th
at
a
r
e
s
h
o
wn
f
o
r
d
e
m
o
n
s
tr
ativ
e
p
u
r
p
o
s
es,
ar
e
co
m
p
ar
ab
le
with
th
o
s
e
p
r
esen
ted
in
[
1
4
]
,
wh
er
e
th
e
ty
p
ical
u
s
er
s
e
lectio
n
tim
e
was
b
etwe
en
5
a
n
d
8
s
ec
o
n
d
s
.
As
an
e
x
am
p
le,
Fig
u
r
e
9
s
h
o
ws
th
e
E
E
G
r
ec
o
r
d
o
f
u
s
er
A,
o
b
tain
ed
in
3
co
n
s
ec
u
tiv
e
tim
e
-
win
d
o
ws,
co
r
r
esp
o
n
d
in
g
to
a
s
u
c
ce
s
s
f
u
l
s
elec
tio
n
o
f
th
e
o
p
tio
n
r
elate
d
to
a
v
is
u
al
s
tim
u
lu
s
o
f
1
6
Hz.
T
h
e
f
ir
s
t
im
ag
e
co
r
r
esp
o
n
d
s
to
t
h
e
r
aw
E
E
G
s
ig
n
al,
wh
ile
th
e
s
ec
o
n
d
s
h
o
ws its
FF
T
tr
an
s
f
o
r
m
in
ea
ch
tim
e
-
win
d
o
w.
(
a)
(
b
)
Fig
u
r
e
9
.
E
E
G
s
ig
n
al
i
n
th
r
ee
co
n
s
ec
u
tiv
e
tim
e
-
win
d
o
ws
:
(
a)
R
aw
s
ig
n
al
(
b
)
Pro
ce
s
s
ed
s
ig
n
al
4.
CO
NCLU
SI
O
NS
So
C
F
PGA
s
y
s
tem
s
p
r
esen
t
v
er
y
attr
ac
tiv
e
ch
ar
ac
ter
is
tics
f
o
r
th
e
d
ev
elo
p
m
e
n
t
o
f
s
y
s
tem
s
wh
er
e
r
ea
l
-
tim
e
p
r
o
ce
s
s
in
g
is
k
e
y
.
U
s
in
g
th
ese
d
e
v
ices,
d
ed
icate
d
l
o
g
ic
in
th
e
FP
GA
ca
n
b
e
u
s
ed
to
s
o
lv
e
task
s
th
at
d
em
an
d
lo
w
laten
cy
,
leav
i
n
g
t
h
e
p
r
o
ce
s
s
o
r
d
ed
icate
d
to
p
er
f
o
r
m
h
ig
h
-
l
ev
el
task
s
,
s
u
ch
as
th
e
u
s
er
in
ter
f
ac
e.
T
h
r
o
u
g
h
o
u
t
th
is
ar
ticle
it
h
as
b
ee
n
d
is
cu
s
s
ed
h
o
w
a
s
y
s
tem
o
f
th
ese
ch
ar
ac
te
r
is
tics
ca
n
b
e
u
s
ed
to
d
e
v
elo
p
a
p
latf
o
r
m
f
o
r
th
e
ac
q
u
is
itio
n
a
n
d
p
r
o
ce
s
s
in
g
o
f
elec
tr
o
en
ce
p
h
alo
g
r
ap
h
ic
s
ig
n
als,
s
p
ec
if
y
in
g
h
o
w
th
e
task
s
ca
n
b
e
d
is
tr
ib
u
ted
in
o
r
d
er
t
o
ac
h
iev
e
a
h
ig
h
ly
ef
f
icien
t
B
C
I
.
Fin
ally
,
th
e
im
p
lem
en
tatio
n
o
f
an
SS
VE
P
-
b
ased
B
C
I
s
y
s
tem
,
d
ev
elo
p
e
d
en
tire
ly
o
n
a
d
e1
0
-
n
an
o
So
C
p
r
o
v
id
e
d
b
y
Alter
a,
h
as
b
ee
n
s
h
o
wn
.
T
h
e
tim
e
d
elay
b
etwe
en
th
e
u
s
er
’
s
s
elec
tio
n
an
d
th
e
s
y
s
tem
r
esp
o
n
s
e
h
as
b
ee
n
esti
m
ated
in
3
4
3
µs,
an
d
a
f
ir
s
t
ex
p
er
im
en
tal
test
,
th
at
allo
wed
to
v
er
if
y
th
e
o
p
er
atio
n
o
f
th
e
c
o
m
p
lete
s
y
s
tem
,
wa
s
ca
r
r
ied
o
u
t.
A
d
etailed
ch
a
r
ac
ter
izatio
n
o
f
th
e
s
y
s
tem
p
er
f
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[1
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A
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A.
A.
S
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[3
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J
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R
W
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Bir
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X
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[5
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A.
Ch
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.
Du
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k
a
a
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Ży
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Hig
h
fre
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a
rd
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ize
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ter
,
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in
IEE
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T
ra
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s
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ti
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Ne
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ra
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S
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ste
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/T
NSRE
.
2
0
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7
.
2
7
3
4
1
6
4
.
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