anks
> Yan
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> -- Original Message --
> From: "Michael D'Cruze" <michael.dcr...@postgrad.manchester.ac.uk>
> To: "casper@lists.berkeley.edu" <casper@lists.berkeley.edu>
> Sent: 2017-05-12 02:10:26
> Subject: [casper]
From: "Zhu, Yan" <zhu...@nao.cas.cn>
To: Michael D'Cruze <michael.dcr...@postgrad.manchester.ac.uk>,
"casper@lists.berkeley.edu" <casper@lists.berkeley.edu>
Subject: Re: [casper] ROACH2 sync_out
Hi Michael and all,
I'm also intended to use sync_out or other
connect them?
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> Thanks
> Yan
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> -- Original Message --
> From: "Michael D'Cruze" <michael.dcr...@postgrad.manchester.ac.uk>
> To: "casper@lists.berkeley.edu" <casper@lists.berkeley.edu>
> Sent: 2017-05-12 02:1
chester.ac.uk>
To: "casper@lists.berkeley.edu" <casper@lists.berkeley.edu>
Sent: 2017-05-12 02:10:26
Subject: [casper] ROACH2 sync_out
Dear all,
I’m planning to use a 0.5Hz square wave, generated from the FPGA and
output via sync_out, to eventually fire our cal diode (via much
cabli
Hi Michael
I too have used a ROACH 1 gpio to drive a phase switch at KHz rates. Our
system used an optical isolated driver circuit between the GPIO and noise
diode. I'm sure suitable parts could be purchased from an arduino reseller
for next to nothing.
The importance of matching the driver
Hi Michael
In the HIPSR system (https://arxiv.org/abs/1702.00443) we use the GPIO on a
ROACH1 to control the noise diode on the Parkes 64m, so definitely not a
bad venture! 0.5 Hz should not pose any difficulties.
I would expect to measure closer to 5V (50 ohm terminated), but haven't
used the
Dear all,
I'm planning to use a 0.5Hz square wave, generated from the FPGA and output via
sync_out, to eventually fire our cal diode (via much cabling). A quick hardware
test today shows the sync_out port driving at circa 7V (!). This is a bit
higher than I was expecting. Does this venture as
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