EPICS Home EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

Format page
for printing


Search Tech-talk
1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>
Subject: Re: Porting EPICS to a new OS
From: Eric Norum <[email protected]>
To: Emmanuel Mayssat <[email protected]>
Cc: EPICS mailing list <[email protected]>
Date: Fri, 6 Jun 2014 09:15:53 -0700
At a quick estimate, and assuming that POSIX-compiiant really means what you and the EPICS developers think it means, I’d expect that porting EPICS base might just be a ‘1’ on the scale you’ve shown.  Are you planning on native or cross development?
Of course I wouldn’t be surprised if Mr. Murphy’s Law requires a little of ‘3’, too.

The real work comes when you want to provide driver support — especially if you want to get at local hardware I/O space and even more so if you need the ability to deal with hardware interrupts.  If all you want is ASYN-style serial and network ports things should be pretty simple.

On Jun 6, 2014, at 9:01 AM, Emmanuel Mayssat <[email protected]> wrote:


Hello,

I am interested in porting EPICS to a new OS, namely QNX.
QNX is a real-time OS with a microkernel.
It is POSIX compliant.

How much work will that take?
or rather what needs to be done?

0/ Because QNX is POSIX compliant, epics-base compiles out of the box
1/ It compiles provided that I create/change files in the $(TOP)/configure directory
2/ It compile but I have to change the master Makefile of epics-base
3/ I have to change the epics-base code itself
4/ It compiles, but requires a combination of all the above
5/ ... something even more time consuming ...
6/ It is impossible.

So on the scale of 0 to 6, how big of a job is that?

Regards,
--
Emmanuel

-- 
Eric Norum
[email protected]

Replies:
Re: Porting EPICS to a new OS Stephen Beckwith
References:
Porting EPICS to a new OS Emmanuel Mayssat
Navigate by Date:
Prev: Re: EPICS database Feature request Pete Jemian
Next: RE: EPICS database Feature request Emmanuel Mayssat
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Porting EPICS to a new OS Emmanuel Mayssat
Next: Re: Porting EPICS to a new OS Stephen Beckwith
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  <2014>  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 17 Dec 2015 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·