Hi Jason:
Are there stable model files for packetized correlator on ROACH ? I saw
there are 2 model files in the /roach subdirectory, but with comments of
lots of stuff here for debug .
cheers
homin jiang
Today's Topics:
1. roach reference designs (Jason Manley)
I have just checked-in the latest versions. F engine is at revision
306 (stable) for ibobs and X engine is up to rev 322g (debug compile)
for roach.
There are two major outstanding issues before the system is deployable:
1) Loss of packets from F engines. There is a loss of data (about 1
Hi. Does anyone know what the status of this is? Does borph on the bee2
work under 10.1?
John
Hello,
When I've had odd behavior like this before it turned out to be a corrupt
bof file. I would try recopying the design to the BEE2, but admittedly
it's
a bit of a long shot.
Glenn
On
Hi Tom
We use hardware time tagging in some of the spectrometers we've built,
accurate to a few nS, described below:
We've implemented time tagging in spectrometers and correlators (we can
send you some spectrometer
designs if you want), by running the ADC sample clock from a
synthesizer
I haven't tried it on the ROACH, but we've had great results (i.e.
much better than 1 ms) with the IEEE Precision Time Protocol (using
ptpd, from ptpd.sourceforge.net). You might want to give that a try
before you resort to fancier solutions.
--Andy
On Tue, Dec 22, 2009 at 8:40 PM, Tom Downes
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