Re: Examples of synApps scaler record using asyn port driver

[David Kline <dkline@aps.anl.gov>]

hello angus,

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

Mark Rivers wrote:
> 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: tech-talk-bounces@aps.anl.gov 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                    dkline@aps.anl.gov
Argonne National Laboratory
Argonne IL, 60439                       630.252.8639

Advanced Photon Source, X-ray Science Division
Optics and Detectors Group
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                 Detectors-R-Us
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