4Links EtherSpaceLink Series, Руководство пользователя

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EtherSpaceLink-RG408
EtherSpaceLink family User Manual
11. Opt i on TC - S p a ce Wir e T i me Co d e g ene ra to r / di st ri buto r (TC )
S p ac e W ir e de f i nes a c o de f o r t r a ns f e rri n g a g lo b a l t i me r e f e r en c e ac r o ss a net wo r k .
Th
e b
a
s i
c E
t
h
e rS
p ac
eL i n
k ca
nn
o
t g ene r
a
te t i me
c o
des.
A ll
m
o
de
l
s
o f E
S L
ca
n r e
c
e iv e t i me
c o
des , b
u
t t
h
e b
a
s i
c
m
o
de
l
s i m
ply
d i s
ca
r ds
a
n
y
t i me
c o
de t
ha
t i t
r e
c
e iv es.
Th
e
T
i me
C o
de
op
t i
o
n en
a
b
l
es
a
n
a u
t
o
m
a
ted t r
a
nsm i ss i
o
n
o f
t i me
-c o
des ,
a
nd
ca u
ses r e
c
e iv ed t i me
-
c o des t o be r e po r ted t o t h e u se r .
Th
e
f ollow
i n g
p a
r
a
mete r s
ca
n be set
f o
r t i me
-c o
de t r
a
nsm i ss i
o
ns:
6 - b i t , 7 - b i t a nd 8 - b i t t i me -c o des [ t h e E C SS - E - S T- 5 0 - 12 C st a nd a r d s p e c i f i es t ha t a t i me -c o de s h oul d
c o
nt
a
i n
6
b i ts ,
a
nd t
ha
t t
h
e
o
t
h
e r t
wo
b i ts i n t
h
e t r
a
nsm i tted b
y
te s
h oul
d be 0
]
;
C o nt i n uou s o r o ne - s h o t t i me -c o de t r a nsm i ss i o ns;
Th
e st
a
r t i n g v
a
lu e
f
o r
a
se
q
u en
c
e o
f
t i me
-c
o des;
T
i me
-c o
de i nte rv
a l
s
o f
1 0 µs t
o 999
s.
Th
e
E
S L
ca
n r e
c
e iv e t i me
-c o
des
a
t 1 0 µs i nte rv
a l
s.
O p
t i
o
n
TC fac
i
l
i t i es m
a y
be
acc
essed:
In t h e “ T i me -c o des ” pull - d ow n men u i n t h e
SpaceWireUI
p r o gr a m;
U s i n g t
h
e E S L plu g
-
i n
f
o r t
h
e
SpWIO
p r o gr
a
m;
a
nd
U
s i n g t
h
e
EtherSpaceLink_set_timecode_receive()
a
nd
EtherSpaceLink_set_timecode_transmit()
f u n c t i o ns i n t h e C- l a n g u a g e A ppl i ca t i o n
P
r
o
gr
a
mm i n g Inte r
fac
e (
C-A P
I ) .
4Links Limited
www.4Links.co.uk
support@4Links.co.uk
page 31 of 110
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