Hi Dan,
Likewise, we have one of these for MWA and assorted peripheral systems:
https://www.thinksrs.com/products/fs725.html
In our case, it is disciplined by the observatory maser, but could be
disciplined by a GPS clock also.
Cheers,
Randall
A/Prof Randall Wayth
ICRAR | Curtin Institute of
Hi Xavier,
On Thu, 7 Mar 2019 at 15:56, Xavier Bosch
wrote:
> Hi everyone,
>
> I have a SNAP + Rpi3 board with a 410T FPGA instead of a 160T
>
> TL;DR: When I do fpga.listdev() I get the correct list of registers but
> when I try to read or write the registers I always get an error, no matter
>
Hi everyone,
I have a SNAP + Rpi3 board with a 410T FPGA instead of a 160T
TL;DR: When I do fpga.listdev() I get the correct list of registers but
when I try to read or write the registers I always get an error, no matter
what I do. I suspect that the RPi parses the BOF and gets the right memory
Hi Dan,
We use a PRS10 Rubidium clock from Stanford Research Systems (
https://www.thinksrs.com/products/prs10.html). This takes a 1 pps from a
GPS clock, and produces a highly accurate (and stable) 10 MHz signal, which
we use to lock all of our time and frequency sources. You can read about
in a somewhat related question.
can anybody give us advice about GPS disciplined oscillators time/freq
standards that are very accurate wrt UTC?
we don't want to buy a hydrogen maser (too pricy).
we have been looking at a company called endrun technologies that sell
time/freq standards accurate
Hi Alex and SKARAB casperites,
1) Firstly, I see some references to the old wiki in these threads. I
suggest go to https://casper.berkeley.edu and then click on "Hardware" (
https://casper.berkeley.edu/index.php/hardware/). Once you do that click on
Hi Franco.
We have normally time-stamped the data using a hardware 1 Pulse per Second
digital input as a sync source, which gives us << 1 microsecond timing
precision. PTP requires hardware support in the LAN hardware, and I don't
recall for sure but I don't think it's in the PHY/MAC on the PPC,
Hi Alex, I have CCed the mailing list so that this information will be out
in the wild.
Firstly, here is a link to the SKARAB page on the wiki. It has all the
resources that one would need for the SKARABs.
https://casper.ssl.berkeley.edu/wiki/SKARAB
To use the CASPER tools, the BSP would need to
Hi Franco
Simon Lewis in the RRSG at UCT has White Rabbit hardware and expertise (PhD
incubating). Snag is that it runs on 1GE Fibre. We also have a GPS version.
The former gives sub ns precision, the latter about 4 ns rms. Send me a
message off line and I can link you. We also have a scheme of
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