Daniel,
The imgsrv - image server on port 8081 has a mini-help page - just open
http://:8081 page. This server is for manipulation data in the
circular buffer, it also does not depend on the main lighttpd that can get
stuck when there are several instances of the PHP busy waiting for some
in-camera events (it is possible to increase number in lighttpd configuration,
but that increases used memory). BTW, if you get to that (with lighttpd web
server stuck waiting) you can just "killall lighttpd" from telnet - server will
be automatically restarted, together with 3 (default) PHP instances
Imgsrv has "/trig" command that issues a single trigger if the camera is set to
single trigger mode, but for testing of the corrupted images it may be simpler
to just use some definitely slow fps (like 1 FPS) by setting TRIG_PERIOD to
9000 (it is measured in pixel clock periods, and the default clock is 90
MHz). When you use a single trigger mode you may need several frames triggers
to propagate all the parameter changes through the image acquisition pipeline
(sensor+fpga)
300 cable mm should be OK to adjust the phase
Andrey
On Sat, 07 Sep 2013 07:59:42 -0700 drouan
wrote
Le 5 sept. 2013 à 23:44, support-list a
écrit :
> Daniel
>
> For FPS control I meant using TRIG=4 as described in
http://wiki.elphel.com/index.php?title=Trigger
> TRIG_CONDITION=0 means that the FPGA timer will generate trigger pulses,
not the external connector
OK, this is the basic situation at start. Now, you recommend to test in single
frame mode
"The frame rate can be reduced by going to the external (from the sensor point
of view) trigger mode and acquire single frames."
I did that by setting the TRIG_PERIOD to 1, but how do I retrieve the image ?
When I just change TRIG_PERIOD in
the parameter editor, Firefox is always waiting for a page that does not
arrive, and when I do it by
http://192.168.0.9:8081/trig/pointers
as mentioned in
http://wiki.elphel.com/index.php?title=Trigger#Single_frame_triggering_from_PC
There is a reply (with changing values at each try) but I do not know how to
check the image. I guess it is
in the circular buffer.
>
> Did you try to change height after reducing width (and getting bad
images)?
>
> Do both sensors work correctly with reduced WOI if only one is used, not
both?
I still have to do that but I'm not at work now.
A last point : the actual length of the new cable is 30 cm not 20 as I wrote. I
guess it's not helping …
Daniel
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