Experimental Physics and
Industrial Control System

Bill Brown <[email protected]> · Wed, 19 Aug 1998 09:36:00 -0700

I looked at the vxWorks drivers for this several years ago (in the lbl
pre-epics era) and WRS did not include a way to diddle parity (and a
couple of other things, IIRC) in the ioctls.  I think I decided that
I would have to write a seperate function to "fix" the uart control
register.  Then "The Word" came down that the Bevelac was doomed and
the interest in getting the project which required this feature going
vanished.

I seem to recall that I couldn't find a "clean" way to do this, as we
didn't have the source to the applicable code.  At one time we could
easily get any source we needed, but WRS had grown beyond that point.

One wonders what the author was thinking when he/she ignored these
options; it's not like all serial devices speak the same dialect!
Must have been written on a Monday or a Friday.  Like a lot of my
stuff seems to be....

At 10:26 AM 8/19/98 -0400, Arne Freyberger wrote:
>
>This may be more of a Vxworks question than an Epics question
>but I figured the expertise would be found in this group.
>
>I have two serial devices to control.  These devices are configured:
>
>Baud: 9600
>Bits per character: 1 start, 7 data, 1 parity, 1 stop
>parity type: odd
>
>I am presently using a IP Octal Serial card from greenspring
>to accomodate the serial devices.  However the serial lines on
>this card default to 9600 baud, 8 data bits no parity....
>
>I've looked in to the Vxworks tyLib package and can only find 
>function calls to change the baud rate, and another OPT_7_BIT which
>I think will place the port in 7 data bit mode. 
>
>What I cannot find is a way to put the port in parity=odd and
>to look for 1 stop bit.  
>
>Has anyone ever configured a IP octal serial line?? 
>And if so could they send me a copy/example of their code?
>
>Thanks,
>
>Arne
>
>-- 
>Arne Freyberger         
>JLAB (Mail Stop 12H)    Phone: (757) 269-6268  
>12000 Jefferson Avenue  Pager: (757) 249-6268  [email protected]
>Newport News, VA 23606   Phax: (757) 269-5800  http://claspc1.cebaf.gov  
>
>
>

Disclaimer:  Any opinions are my own and have	  | -bill
  nothing to do with the official policy or the   |  [email protected]
  management of L.B.N.L, who probably couldn't    |  Berkeley, CA
  care less about employees who play with trains. |  aka [email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System