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<== Date ==> <== Thread ==>

Subject: Passing a raw byte value from st.cmd to a StreamDevice proto file
From: Michael Ritzert <[email protected]>
To: EPICS Tech-Talk <[email protected]>
Date: Wed, 29 Jul 2015 14:52:03 +0200
Hi all,

I'm looking for a way to pass a raw byte parameter from st.cmd through the
database to the format string in a StreamDevice proto file. I investigated both
passing a binary value through dbLoadRecords, but the obvious options \x24 or
\044 (e.g. dbLoadRecords("gf100.db","PORT=L0,ADDR=0,MAC=\x24")) do not work as
I had hoped (the \ is swallowed, the rest is taken verbose). I also tried to
have the string interpreted as a number in the proto file by putting it into a
formatting statement as if \$1 was another record name. All this got me was
error messages.

Does anybody have a suggestion?

Thanks,
Michael

PS: For now I'm good since for the test device I need to pass 0x24 which
happens to be easily represented as "$", but I will not always be so lucky.
-- 
Dr. Michael Ritzert                   Tel: +49 621 181 2883
Schaltungstechnik und Simulation      Fax: +49 621 181 2734
Technische Informatik, Uni Heidelberg [email protected]
68131 Mannheim, Germany               http://sus.ziti.uni-heidelberg.de

Replies:
Re: Passing a raw byte value from st.cmd to a StreamDevice proto file Andrew Johnson

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