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<== Date ==> <== Thread ==>
Subject: Base 7.0.7 + latest
From: Tim Speight via Tech-talk <tech-talk at aps.anl.gov>
To: tech-talk at aps.anl.gov
Date: Tue, 27 Sep 2022 22:20:14 +0100
Hi,

I am developing an EPICS asyn stream device for a Hirst Magnetics GM08 handheld unit and probe.

I think I have tied down my development and my MVP is going to be just reading a stream that is polling every second, without me sending an RS232 command down the line.  It is a fairly simple device communicating at 9600,N,8,1 and I can use screen /dev/ttyS0 9600 in Ubuntu 20.00 to have the device send back terminated data.

Looks a bit like this where the left float is a milliTesla and the 300 is stated units.
00.020 300CrLf
00.002 300CrLf
-0.001 300CrLf

When I try to hook this up to stream and asyn using the latest devices against drvSerial and with the debug loaded.  I’m having a hard time getting the INP to read the data

I have turned on asynTraceMask and get no chatter, plus used the stream debug to see it connect on /dev/ttyS0 at the permissionable addressed Linux COM1 on my motherboard. I get something with not being able to instantiate the PV when I do a dbtr HIRST1:current_value.

Has anyone developed EPICS against this?  Or would a kind person take a glance at my IOC development?

Kind Regards

Tim Speight
Replies:
RE: Base 7.0.7 + latest Mark Rivers via Tech-talk
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