Hi all
Just confirming that on a ROACH-1 we cannot use the aux_clk SMAs as
GPIO/CLK outs?
Best regards,
Ross
--
Ross Williamson
Research Scientist - Sub-mm Group
California Institute of Technology
626-395-2647 (office)
312-504-3051 (Cell)
Jack,
Thanks for block. I've (finally) been able to build our old spectrometer
for ROACH2 using your updated yellow block. I've yet to test it on the
ROACH2 hardware yet but will let you know how that goes.
Thanks again!
Richard
On Sat, Feb 1, 2014 at 4:58 PM, Jack Hickish
Hi all,
We've been trying to get the serial link between the ROACH-2 and a PC, and
we haven't had any success at all.
These are the cable configurations we've tried:
1. USB-A Male (ROACH)/USB-A Male (PC)
2. USB-A Male (ROACH)/USB-Serial Adapter/DB9 Female (PC)
3. RS232 Pin Headers on-board/DB9
Hi Richard,
There are two USB connectors on the board -- the USB B one is the one
which will show up to a PC as a serial device. The USB A one for
adding slave devices to the power pc (eg booting a file system from
usb) -- are you connecting to the right one?
Cheers,
Jack
On 12 February 2014
Hi all,
We've been trying to get the serial link between the ROACH-2 and a PC, and
we haven't had any success at all.
These are the cable configurations we've tried:
1. USB-A Male (ROACH)/USB-A Male (PC)
2. USB-A Male (ROACH)/USB-Serial Adapter/DB9 Female (PC)
3. RS232 Pin Headers
Jack and all,
Well, using the *right* connector on the ROACH-2 board (USB-B), I'm able to
get the USB-OK LED to light up. However, I still see nothing in the
minicom terminal (using RHEL 6.5). I earlier read on the mailing list that
there were some rule issues with serial communications with
Be sure you try to press enter a few times... the ROACH won't say anything
in general except during bootup since it will be sitting there with a login
prompt
also I think I remember the default port being the second or third one of
the 4 that show up when you plug in the usb cable...
On Wed,
The FTDI chip will show up as four serial devices -- the third is the
one you want. (eg. on my system it's ttyUSB2). The serial settings are
summarised here (https://casper.berkeley.edu/wiki/ROACH_NFS_guide)--
basically 115200 bps, 8N1, no hardware flow control.
On 12 February 2014 20:58, Richard
All,
Alright. I finally get it. Sorry for being the slow kid on the block. I can
finally see activity on ttyUSB2. I didn't understand that 4 USB ports meant
4 virtual ports across a single physical port (thanks to Jack and Matt for
clearing that up).
Again, thank you all very much for all the
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