Experimental Physics and
Industrial Control System

there's a few very simple examples in the ebrick distribution as well. they
were written for the ebrick (linux) and for the uc5282 (coldfire)/FPGA
combination (rtems). i've written an mcs version as well, but it's not
part of the ebrick.

regards,
/david

Hi Angus,
The synApps distribution does contain an example.
As you found, std/stdApp/src/devScalerAsyn.c is the device-independent device support for the scaler record.
mca/mcaApp/SISSrc/drvMcaSIS/drvMcaSIS3820Asyn.c is an example asyn driver that supports the scaler record. It is a relatively complex driver, because it supports not only the scaler record interface, but also the mca record interface. The driver allows the SIS3820 to be used as a simple preset scaler (like the Joerger VSC16). It also allows it to be used as a multi-channel scaler (MCS), with each input counting into an array as a function of time or external channel advance. The time per point can be as small as 1 microsecond or so.
If you only are interested in the preset scaler mode, then most of the code in this driver is not necessary because it is supporting the MCS mode.
mca/iocBoot/iocVxWorks/SIS3820_32.cmd is an example vxWorks startup script which loads a scaler record. The scaler record itself is loaded from std/stdApp/Db/scaler32.db.
Let me know if you have more questions.
Mark


________________________________

From: [email protected] on behalf of Angus Gratton
Sent: Tue 9/7/2010 7:21 PM
To: tech-talk
Subject: Examples of synApps scaler record using asyn port driver

Hi,

I was wondering if anyone could show me an example of a scaler record
implemented using an asyn port driver.

I've read over devScalerAsyn.c and I think I can see how it all fits
together on the port driver side. However, if anyone had an example
(with both database records and a port driver) that they could show me,
just so I can see how it all fits together, then I would be incredibly
grateful.

I couldn't see any examples of this kind in the synApps distribution,
although it's possible I'm looking in the wrong place!

Thanks very much in advance.

- Angus

+--------------------------------------------------+
David M. Kline                    [email protected]
Argonne National Laboratory
Argonne IL, 60439                       630.252.8639

References:

Examples of synApps scaler record using asyn port driver Angus Gratton

RE: Examples of synApps scaler record using asyn port driver Mark Rivers

Navigate by Date:

Prev: [no subject] Ahn, Si Won

Next: sscan 2-6-6 does not build with cygwin DLL release version 1.7.7-1 Jud Gaudenz

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: RE: Examples of synApps scaler record using asyn port driver Angus Gratton

Next: EPICS Meeting - please register soon if you may attend Dalesio, Leo

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