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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