4Links Diagnostic SpaceWire Interface DSI-RG408, User Manual

Page: 101 / 130

Diagnostic SpaceWire Interface
EtherSpaceLink family User Manual
17. 6 . 2 4.
EtherSpaceLink_set_active_link()
S ynops i s
int EtherSpaceLink_set_active_link ( EtherSpaceLink DSI_unit,
int port_number
)
D esc ri pt i on
EtherSpaceLink_set_active_link()
s
ele
c
t
s
t
h
e
ac
t
i
ve
p
o
r
t on
a
n
E
t
h
e
r
S
pac
eL
i
n
k
un
i
t.
Th
e
ac t i ve p o r t is t h e one u s e d f o r
EtherSpaceLink_write_packet()
o p e r a t i on s, a s w ell a s w i t h
f
un
c
t
i
on
s s
u
ch a s
EtherSpaceLink_set_speed()
a
n
d
EtherSpaceLink_set_mode()
.
P r ev i ou s l y- s ele c te d p o r t s on a DS I o r S RR un i t c e a s e to be u s e d f o r ac t i ve t r a n s m issi on s, but r em a i n
p
o
w
e
r
e
d
u
p a
n
d capa
ble o
f r
e
c
e
i
v
i
n
g
S
pac
e
W ir
e t
r aff i c
o
r
e
rr
o
r r
e
p
o
r
t
s, a
n
d
t
h
e
r
e
f
o
r
e
d
o not nee
d
to be
dis a ble d be f o r e a ne w one is ac t i v a te d .
I nput p ara mete r s
DSI_unit
t h e ha n d le r etu r ne d b y a s u cc e ss f ul
EtherSpaceLink_open()
c omm a n d .
port_number
t
h
e numbe
r
o
f
t
h
e
p
o
r
t to be m
a d
e
ac
t
i
ve.
Th
e
r
e
q
ue
s
te
d p
o
r
t
s h
oul
d
be
i
n t
h
e
r a
n
g
e
1 to t h e numbe r o f p o r t s on t h e un i t.
Retu r ns
0 R e
q
ue s t s u
cc
e ss
f
ull
y
s ent
- 1 A
n e
rr
o
r
o
cc
u
rr
e
d
E xa mple
EtherSpaceLink DSI_unit;
DSI_unit = EtherSpaceLink_open ( "192.168.3.40" );
EtherSpaceLink_set_active_link ( DSI_unit, 4 );
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