4Links Diagnostic SpaceWire Interface DSI-RG408, Руководство пользователя

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Diagnostic SpaceWire Interface
EtherSpaceLink family User Manual
EtherSpaceLink_EOP
- te r m i n a te d pack et , r a t h e r t ha n ve r y lon g pack et s . Th e l a tte r w oul d
h
o
g
t
h
e
TC
P/
I
P
c
onne
c
t
i
on
, f i
ll
i
n
g
one DS
I p
o
r
t bu
ff
e
r a
n
d p r
event
i
n
g
t
h
e ot
h
e
r
DS
I p
o
r
t bu
ff
e
r s
f r om be i n g f i lle d i n a t i mel y m a nne r, a n d t h i s w oul d ca u s e t h e t h r ou g hp ut to d r o p to ju s t t ha t o f
t
h
e
s i
n
g
le l
i
n
k
be
i
n
g s
u
pp
l
i
e
d a
t
a
n
y pa r
t
i c
ul
a r
t
i
me;
Th
e DS
I d i
v
i d
e
s r
e
c
e
i
ve
d
S
pac
e
W ir
e t
r aff i c f r
om
a
ll o
f i
t
s p
o
r
t
s i
nto
s
m
a
ll
pack
et
s a
n
d s
en
ds
t
h
em
b ack to t h e app l i ca t i on p r o gr a m i n a n i nte r le a ve d fash i on. Th e
read_packet()
r out i ne s r e -
c
omb
i
ne t
h
e
s
e
s
m
a
ll
pack
et
s wh
en
p
o
ss i
ble.
Th e 4 L i n ks
SpW
ex a m p le p r o gr a m d ri ve s mult i p le S pac e W ir e p o r t s i n a DS I u s i n g i nte r le a ve d
pack
et
s
o
f
len
g
t
h 1
500/
n
b
y
te
s , wh
e
r
e
n i s
t
h
e numbe
r
o
f ac
t
i
ve
p
o
r
t
s , s
o t
ha
t one
pack
et
f
o
r
e
ach
DS I p o r t m ay be ca rri e d to t h e DS I i n e ach E t h e r net pack et t ha t i s t r a n s m i tte d .
17.5. 6 . A n Adva nce d A P I E xa mple
Th
e
f
ollo
w i
n
g p r
o
gr a
m u
s
e
s
t
w
o t
h r
e
ads
.
O
ne t
h r
e
ad s
t
r
e
a
m
s
t
h
e
c
ontent
s
o
f a f i
le to
p
o
r
t
1
o
f a
DS
I
un i t.
Th
e
s
e
c
on
d
t
h
r e
ad
r e
c
e i ve
s
S
pac
e
W
ir e t r
aff
i
c f
r om t
h
e DS
I
un i t ,
a
n
d s
to r e
s
t
h
e b
y
te
s
r e
c
e i ve
d
f r
om
a
n
y
o
f
t
h
e DS
I p
o
r
t
s
to
a f i
le (
i
n
a
n
i
nte
r
le
a
ve
d fash i
on
, i f
ne
c
e
ssa r y
).
Wh en t h i s p r o gr a m i s r un on a DS I un i t , a loo p- b ack c onne c t i on m ay be u s e d on p o r t 1 ; a lte r n a t i vel y a
S
pac
e
W ir
e
ca
ble m
ay
be u
s
e
d
to jo
i
n
p
o
r
t
1
to
a
n
y
ot
h
e
r a
v
a i
l
a
ble
p
o
r
t.
Th e t i me s sh o w n a r e c olle c te d i n t h e r e c e i v i n g t h r e ad . S pac e W ir e t i me -c o d e 2 i s s ent b y t h e
t
r a
n
s
m
i
tt
i
n
g
t
h r
e
ad
to
i
n
i
t
i a
l
i s
e t
h
e t
i
me
r, a
n
d
t
i
me
-c
o
d
e
3 i s s
ent to
s
to
p
t
h
e t
i
me
r a
n
d r
e
p
o
r
t t
h
e
r e s ult s . T i me -c o d e 4 i s u s e d to s to p t h e p r o gr a m. Th e s e t i me -c o d e f e a tu r e s r e q u ir e t h e p r e s en c e o f t h e
DS
I ’ s E rr
o
r I
nje
c
t
i
on (
EI
) o
p
t
i
on.
/**************************************************************************/
/* (c) June 2013,
R M A Peel, 4Links Limited */
/* */
/* Transmits the file specified on the command line onto port 1 and
*/
/* simultaneously saves the traffic from ports 1 and 2 into a file. */
/* Use only port 1 or port 2. Overwrites file ’file0’. */
/* */
/* Requires a loopback connector on port 1 or a SpaceWire cable from
*/
/* port 1 to port 2. */
/* */
/* Run as
*/
/* c-api-example2-dsi <IP address of DSI> <input filename> */
/* */
/* Compile on Linux:
*/
/* gcc -O2 -o c-api-example2-dsi c-api-example2-dsi.c EtherSpaceLink.c */
/* -lm -lpthread */
/* */
/* Compile on Windows:
*/
/* cl /MT /D "_X86_" c-api-example2-dsi.c EtherSpaceLink.c wsock32.lib */
/* */
/**************************************************************************/
#include <stdio.h>
#include <sys/timeb.h>
#include "EtherSpaceLink.h"
EtherSpaceLink DSI_unit;
char filename[256];
int total_received = 0;
int total_sent = 0;
int running = 1;
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