Experimental Physics and
Industrial Control System

Mark Rivers <[email protected]> · Wed, 9 May 2018 13:27:05 +0000

Hi Konrad,

What record type are you using?

devAsynUInt32Digital.c does support shifting for mbbo, mbbi, mbboDirect, and mbbiDirect records.

Mark

-----Original Message-----
From: Konrad, Martin [mailto:[email protected]] 
Sent: Wednesday, May 9, 2018 8:02 AM
To: Mark Rivers <[email protected]>
Cc: EPICS Tech Talk <[email protected]>
Subject: devAsynUInt32Digital: add parameter for shifting?

Hi Mark,
devAsynUInt32Digital currently supports the following parameters:

field(INP,"@asynMask(portName,addr,mask,timeout)drvParams")

We are reading out a bunch of 32 bit registers containing smaller numbers like 4x 8 bit. The mask allows us to pick a subset of bits but the generic device support doesn't seem to allow us to shift them. To make that happen we are currently using an additional calc record. I'm wondering if this use case is common enough to justify adding another parameter for shifting?

-Martin

--
Martin Konrad
High Performance Controls Team Leader
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824-1321, USA
Tel. 517-908-7253
Email: [email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System