Hi Niki,
I did run this by the utseriald engineer. He doesn't believe there
should be any limitation using the on board Sun Ray serial port. I'd
open a support case.
Niki W. Waibel wrote:
actually it seems that the sunray works okay with 110baud. 75baud seems a
problem, and 50baud i could not test.
can anyone tell what the lowest possible speed of the 2fs serial port?
it is a hardware (uart) or a software (ray firmware / utseriald) limit?
the solaris os seems to know about 50/75baud (/usr/include/sys/termios.h).
niki
-------- Original-Nachricht --------
Datum: Wed, 30 Sep 2009 10:26:46 +0200
Von: "Niki W. Waibel" <[email protected]>
An: SunRay-Users mailing list <[email protected]>
Betreff: Re: [SunRay-Users] 2fs serial port: baudrate?
www.gudeads.de has actually several devices. complex ones that provide ntp
and sntp via an ip/enternet network, and very simple devices which
internally consist of an antenna, some analog/digital logic and a uart.
i am talking about the latter ones. you can connect such a device to a
serial port -- set to 50 baud -- and the ntp sw can grab the dcf77 time
information (and provide ntp/sntp via an an ip/enternet network, but that is not
what i my question is about).
problem i see: ntp (and its test program test_dcf) running on the
solaris/sparc sunray server can't grab the serial data from that device.
the question is why, and is it possible to fix this.
reason may be that either
* the sunray hw (2fs) does not support 50bps
* the sunray fw (4.2_49) is not able to set the ports hw to 50bps
* the sunray server/utseriald does not tell the sunray to set the port to
50bps
* or there is some bug in the ntp sw (inproper callings of ioctl)
niki
-------- Original-Nachricht --------
Datum: Tue, 29 Sep 2009 09:59:46 -0500
Von: "Quayle, Bill" <[email protected]>
An: SunRay-Users mailing list <[email protected]>
Betreff: Re: [SunRay-Users] 2fs serial port: baudrate?
I took a look at what this device does. From the manual, it appears to
support sntp via Ethernet. I wonder why you wouldn't just point to the
time
source using ntp over the network? (Though I also didn't see anything
in
the manual that mentioned the baud rate of the serial port...)
...just curious.
-Bill
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Craig Bender
Sent: Tuesday, September 29, 2009 9:51 AM
To: SunRay-Users mailing list
Subject: Re: [SunRay-Users] 2fs serial port: baudrate?
You're using Sun Rays with a Solaris desktop? Odd. Just kidding.
I've asked some questions to our utseriald engineer. I'll see what he
responds with.
Niki W. Waibel wrote:
below ...
-------- Original-Nachricht --------
Datum: Tue, 29 Sep 2009 06:39:22 -0700
Von: Craig Bender <[email protected]>
An: SunRay-Users mailing list <[email protected]>
Betreff: Re: [SunRay-Users] 2fs serial port: baudrate?
Hi Niki,
Tim is wrong there, it's not true that only 9600 is possible. What
you
are seeing though is the safe mode of utseriald which is 9600, 8, N,
1.
okay.
However in order to use a different setting the program controlling
the
serial device much properly set the port speed. What program is
controlling the device? I'm guessing it's a windows program?
it is ntpd (4.2.4p7) and its companion test program:
ntp-4.2.4p7/parseutil/testdcf.c (on solaris, the ray server).
testdcf.c works okay with a real physical serial port on a pc with
linux, but fails ie on the same hw/os with a prolific usb/serial
converter
(which supports only 75baud and up).
50baud setup is necessary. this is what testdcf.c does:
===
int baudrate = B50;
cfsetispeed(&term, baudrate);
cfsetospeed(&term, baudrate);
===
return codes of the cfsetXspeed() functions are okay, but i've doupts
that 50 baud setting works on the ray.
Typically in the windows world, developers rely on the end user to
set
the port speeds via control panel vs properly setting the IOCTL's in
the
code (noted exceptions are things like Palm software that you choose
the
baud, parity, etc through the program). This is a problem for remote
serial connections as there really isn't mechanism for specifying the
speeds and feeds over RDP.
... it is not about windows or RDP -- the device is directly attached
to
the ray, which displays a CDE solaris/sparc desktop.
The work-around in this case is to set the device to the known safe
speed of utserial.
the device works with 50baud only. it is impossible to change that.
There's one other workaround which I haven't tried but was suggested
by
one of our developers. Basically you hold the port open with stty.
stty 50 < $DTDEVROOT/unit/dev/term/a
this stops the output of the test program:
===
nwai...@m5000-1:/tmp/ntp-4.2.4p7/parseutil $ ./testdcf
/tmp/SUNWut/units/IEEE802.00144f3ba896/dev/term/a
setting RTS/DTR for GudeADS Expert mouseCLOCK ...
DCF77 monitor 4.11 - Copyright (C) 1993-2006, Frank Kardel
PTB private....RADMLSMin....PHour..PMDay..DayMonthYear....P
---------------RADMLS1248124P124812P1248121241248112481248P
| -#################################......................... ***
INCOMPLETE
/ ####################.......................................
===
there should be something else then # ...
A couple of things to remember:
When you hotdesk, the port is automatically reset to 9600, 8, N, 1
When you hotdesk, the ownership of the port changes
When you hotdesk, windows expects the speed, stop bits, parity, to be
the same as when the session was opened. You're probably going to
have
to mess around with utaction to do a pkill on stty on session
disconnect
and then another stty command upon session connection to get the port
right again.
sure. read that.
Give it a shot and let me know how it goes.
done.
niki
Niki W. Waibel wrote:
hi,
i am trying to run a DCF77 serial clock device (www.gudeads.de) on a
sunray 2fs (without success so far). it seems that device needs a
baudrate
setting of 50.
http://ebberstwork.blogspot.com/2008/08/sun-ray-and-peripherals-page-2.html
states that only 9600 is possible.
can someone confirm / give more info?
thanks in advance,
niki
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