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Software for White Rabbit PTP Core
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4ded48b2
Commit
4ded48b2
authored
Dec 20, 2013
by
Grzegorz Daniluk
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update doc for release 2.1
parent
4593e819
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doc/wrpc.in
View file @
4ded48b2
...
...
@@ -35,7 +35,7 @@
@setchapternewpage off
@set update-month
Octo
ber 2013
@set update-month
Decem
ber 2013
@set release
__
RELEASE
_
GIT
_
ID
__
@set tagname wrpc-v2.1
@c WARNING: in @example I Can't use @value
{
tagname
}
, so please look for this
...
...
@@ -490,11 +490,8 @@ and running on your @sc{spec}. Congratulations !
@node Writing EEPROM and calibration
@section Writing EEPROM and calibration
By default @sc
{
wrpc
}
starts in @sc
{
wr
}
Slave mode and uses the default calibration
values for Axcen AXGE
-
3454
-
0531
@sc
{
sfp
}
. This might be fine for running @sc
{
wrpc
}
for the first time and synchronizing it to another @sc
{
spec
}
running the same
firmware. It is however recommended to perform few additional steps through the
@sc
{
wrpc
}
shell.
You should perform few configuration steps through the @sc
{
wrpc
}
shell before
you start testing and using the firmware.
@b
{
Note:
}
the examples below describe only a subset of @sc
{
wrpc
}
Shell commands
required to make a basic configuration and calibration. A full description of
...
...
@@ -517,18 +514,21 @@ transceivers with deltaTx, deltaRx and alpha parameters associated with them.
@example
wrc# sfp erase
wrc# sfp add AXGE
-
1254
-
0531
180
456
148066
72169888
wrc# sfp add AXGE
-
3454
-
0531
180
456
148066
-
73685416
wrc# sfp add AXGE
-
1254
-
0531
180
707
148323
72169888
wrc# sfp add AXGE
-
3454
-
0531
180
707
148323
-
73685416
@end example
To check the content of the @sc
{
sfp
}
database you can execute the @i
{
sfp show
}
shell
command.
@b
{
Note:
}
The deltaTx and deltaRx parameters above are the default ones for
@i
{
wrpc
-
2
.
1
}
release bitstream available on @i
{
ohwr.org
}
and most probably will
be the cause of some constant offset when @sc
{
wrpc
}
is re
-
synthesized or
connected to the @sc
{
WR
}
Switch. To find the new values you should read the
@sc
{
wr
}
Calibration procedure
(
@i
{
http:
//
www.ohwr.org
/
documents
/
213
}
)
.
@i
{
wrpc
-
2
.
1
}
release bitstream available on @i
{
ohwr.org
}
running on @sc
{
spec
}
v
4
board
and calibrated to the port
1
of @sc
{
wr
}
Switch v
3
.
3
. Those values as well as the parameters for the
@sc
{
wr
}
Switch are available on the calibration wiki page
(
@i
{
http:
//
www.ohwr.org
/
projects
/
white
-
rabbit
/
wiki
/
Calibration
}
)
. However, if
you re
-
synthesize the firmware or want to have most accurate estimation of fixed
delays and alpha of your fiber you should read and perform the @sc
{
wr
}
Calibration procedure
(
@i
{
http:
//
www.ohwr.org
/
documents
/
213
}
)
.
@sp
1
The @sc
{
wr ptp
}
Core's mode of operation
(
GrandMaster
/
Master
/
Slave
)
can be set using the
...
...
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