Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Wed, 8 Oct 2008 18:12:19 -0500

Are the unsolicited messages the ONLY thing you are reading, or are you
also doing periodic polls, command/response, etc.

Mark

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Szalata, Zenon M.
Sent: Wednesday, October 08, 2008 5:47 PM
To: EPICS Techtalk
Subject: Streamdevice/asyn Question

I am writing a soft ioc for a gpib device using streamdevice with asyn.
The device in question can send an unsolicited text message, which I do
not know how to handle.  I tried defining a record with SCAN "I/O Intr"
but cannot make it work, mainly I think, because there are a number of
such messages possible and they are all different.  Basically, I want to
capture the message in a record and display it on an edm screen.
The streamdevice manual hints that a record with SCAN "I/O Intr"
approach might work.  In the manual there is also a mention of mismatch
exception handler.  There aren't enough details for me to know how to
implement something that works.

Thanks in advance,
Zen 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System