Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  <19951996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  Index 1994  <19951996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
<== Date ==> <== Thread ==>

Subject: Re: capfast onpage / same page connector
From: mcn@aps.anl.gov (Matthew Needes (LANL))
To: tech-talk@phoebus
Date: Wed, 19 Jul 1995 15:55:28 -0500

Kevin -

> (Regarding seg-faults and on-page connectors)

I have heard about this problem from another source.  I suspect the
problem is occuring when the EDIF file is being read into memory just
before the actual conversion process.

This is definately a problem with the EDIF reader, and has been existence
since the the orignal edif2sr.

>
>Is the same page connector not to be used in this manner?  If so how should
>it be used.  Or is there something I'm doing wrong?
>

You are not doing anything wrong.

Work arounds:

1. The obvious work around is not to use onpage connectors with versions
2.1.1 and earlier of e2sr (e2sr 2.1.1 comes with EPICS R3.12.1).

2. Wires with identical names are in fact connected.  You can "fake" an 
on-page connection by naming two wires the same, then leaving the wires
disconnected on the schematic.

If you think this looks ugly, create fake symbols with appropriate port
directions.  This means that nets with output link(s) should connect to
fake on-page connectors with output ports, and nets with input link(s)
should connect to fake on-page connectors with input ports.  e2sr will
complain if the direction is wrong.

I will of course correct this problem.

Thanks,
        Matt


Navigate by Date:
Prev: capfast onpage / same page connector Kevin Tsubota
Next: joining the action Sarah Quady
Index: 1994  <19951996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
Navigate by Thread:
Prev: capfast onpage / same page connector Kevin Tsubota
Next: joining the action Sarah Quady
Index: 1994  <19951996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020 
ANJ, 10 Aug 2010 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·