Commit 70c0d227 authored by Benoit Rat's avatar Benoit Rat

doc: improve calibration and other small corrections

- correct error in fiber delay
- correct reference to wrpc
- correct ref to fmc-bus
parent dbe913c8
...@@ -64,7 +64,7 @@ conditions ...@@ -64,7 +64,7 @@ conditions
1.1 26/07/2013 Benoit Rat\ Correct errors in submodule init 1.1 26/07/2013 Benoit Rat\ Correct errors in submodule init
[Seven Solutions] [Seven Solutions]
2.0 26/07/2013 Benoit Rat\ Updating for v2.0 release 2.0 15/05/2014 Benoit Rat\ Updating for v2.0 release
[Seven Solutions] [Seven Solutions]
------------------------------------------------------------------------ ------------------------------------------------------------------------
...@@ -623,7 +623,6 @@ you should now obtain something like this on `dmesg`: ...@@ -623,7 +623,6 @@ you should now obtain something like this on `dmesg`:
Setting Master & Slave using White Rabbit Core Setting Master & Slave using White Rabbit Core
============================================= =============================================
...@@ -1128,10 +1127,10 @@ tools/stamp-frame: Using interface wr1, with all timestamp options active ...@@ -1128,10 +1127,10 @@ tools/stamp-frame: Using interface wr1, with all timestamp options active
timestamp T1: 1891.948736656 timestamp T1: 1891.948736656
timestamp T2: 1892.038390176 timestamp T2: 1892.038390176
timestamp T3: 1892.048625152 timestamp T3: 1892.048625152
timestamp T4: 1891.958972320 timestamp T4: 1891.959080320
round trip time: 0.000000688 round trip time: 0.000108688
forward time: 0.089653520 forward time: 0.089653520
backward time: -1.910347168 backward time: -0.089544832
~~~~~~~~~~~~ ~~~~~~~~~~~~
This is done four times: departure and arrival of the forward frame, followed This is done four times: departure and arrival of the forward frame, followed
...@@ -1408,7 +1407,7 @@ The result of this experiment is illustrated by the next figure where ...@@ -1408,7 +1407,7 @@ The result of this experiment is illustrated by the next figure where
you can see the 3 PPS signals: yellow for [WRS], blue and violet for you can see the 3 PPS signals: yellow for [WRS], blue and violet for
[SPEC+FMCDIO]. [SPEC+FMCDIO].
![WRS PPS vs Starting Kit PPS](img/ssk_wrspps.jpg) ![WRS PPS (yellow) vs Starting Kit PPS (blue & violet)](img/ssk_wrspps.jpg)
The distance between each PPS might be reduced by the improving the The distance between each PPS might be reduced by the improving the
calibration which is the subject of the next section. calibration which is the subject of the next section.
...@@ -1436,9 +1435,15 @@ captured by the oscilloscope. ...@@ -1436,9 +1435,15 @@ captured by the oscilloscope.
> **Notes**: Please check that you are using the values that correspond > **Notes**: Please check that you are using the values that correspond
to your gateware release. When this document was generated we refer as to your gateware release. When this document was generated we refer as
wr-nic-v2.0 (starting kit). wr-nic-v2.0 (starting kit). You can also check using the `ver` command
if the corresponding embedded LM32 corresponds to your gateware version
(i.e, wrpc-v2.1-for-wrnic lm32 is embedded in wr-nic-v2.0).
~~~~~{.sh} ~~~~~{.sh}
wrc# ver
WR Core build: wrpc-v2.1-for-wrnic
...
## List your actual sfp database ## List your actual sfp database
wrc# sfp show wrc# sfp show
...@@ -1446,8 +1451,8 @@ wrc# sfp show ...@@ -1446,8 +1451,8 @@ wrc# sfp show
wrc# sfp erase wrc# sfp erase
## Add the parameters for the SFP provided in the starting kit ## Add the parameters for the SFP provided in the starting kit
wrc# sfp add AXGE-1254-0531 46407 167843 73622176 wrc# sfp add AXGE-1254-0531 121751 95827 64481496
wrc# sfp add AXGE-3454-0531 46407 167843 -73622176 wrc# sfp add AXGE-3454-0531 121751 95827 -66584558
~~~~~~~~~~~ ~~~~~~~~~~~
Do not forget to also add the proper calibration values to your other Do not forget to also add the proper calibration values to your other
...@@ -1456,6 +1461,11 @@ WR equipments (i.e, [WRS]) as explained in the wiki page. ...@@ -1456,6 +1461,11 @@ WR equipments (i.e, [WRS]) as explained in the wiki page.
You might also check the [wrpc.pdf] for extended explanations on how to run You might also check the [wrpc.pdf] for extended explanations on how to run
yourself the calibration procedure. yourself the calibration procedure.
> **Notes**: Please check that the master board has a valid t42p written
in its EEPROM. This value must be obtained by first connecting this
board in slave mode to a working WR master. For more information read the
[wrpc-v2.1.pdf] page 7.
SPEC+DIO as grandmaster SPEC+DIO as grandmaster
------------------------ ------------------------
...@@ -2027,8 +2037,10 @@ References ...@@ -2027,8 +2037,10 @@ References
[spec-golden]: http://www.ohwr.org/projects/spec/repository/show/trunk/hdl/golden [spec-golden]: http://www.ohwr.org/projects/spec/repository/show/trunk/hdl/golden
[spec-2-spec]: http://www.ohwr.org/projects/wr-cores/wiki/spec-to-spec [spec-2-spec]: http://www.ohwr.org/projects/wr-cores/wiki/spec-to-spec
[spec-getting-started.pdf]:http://www.ohwr.org/projects/spec-getting-started/wiki [spec-getting-started.pdf]:http://www.ohwr.org/projects/spec-getting-started/wiki
[wrpc.pdf]: http://www.sevensols.com/dl/wrpc/latest_stable.pdf
[wr-nic.pdf]: http://www.sevensols.com/dl/wr-nic/latest_stable.pdf [wr-nic.pdf]: http://www.sevensols.com/dl/wr-nic/latest_stable.pdf
[fmc-bus.pdf]: http://www.ohwr.org/attachments/download/2685/fmc-bus-2014-02-release.pdf
[spec-sw.pdf]:http://www.sevensols.com/dl/spec-sw/latest_stable.pdf [spec-sw.pdf]:http://www.sevensols.com/dl/spec-sw/latest_stable.pdf
[wr_external_reference.pdf]: http://www.ohwr.org/attachments/1647/wr_external_reference.pdf [wr_external_reference.pdf]: http://www.ohwr.org/attachments/1647/wr_external_reference.pdf
[wrpc.pdf]: http://www.ohwr.org/attachments/2559/wrpc-v2.1.pdf
[wrpc-v2.1.pdf]: http://www.ohwr.org/attachments/2559/wrpc-v2.1.pdf
[Seven Solutions]: http://www.sevensols.com [Seven Solutions]: http://www.sevensols.com
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