EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: Re: Stream Raw converter and un/signed integrer
From: Dirk Zimoch <[email protected]>
To: Emmanuel Mayssat <[email protected]>
Cc: [email protected]
Date: Wed, 31 Oct 2007 11:26:06 +0100
Hi Emmanuel,

It should be sufficient to pass the value through a calc record that does "A&65535".

I will probably add a flag to do unsigned conversion.

Dirk

Emmanuel Mayssat wrote:
Hello all,

I am using stream and a 16 bit word to convert to an unsigned integer (0
to 64xxx). The unsigned integer is coded on 2 characters.
So I use the raw converter and particularly %2.2r
But with that converter then the integer is signed (as mentioned in the
doc). So I can read values between 0 to 32767 and -32768 to -1.

Is there a way to use unsigned integer with the raw converter or do I
have to write my own converter?

Looking at the RawConverter.cc code, I am afraid that I will have to
write my own...


--
Emmanuel




-- Dr. Dirk Zimoch Paul Scherrer Institut, WBGB/006 5232 Villigen PSI, Switzerland Phone +41 56 310 5182

Replies:
Re: Stream Raw converter and un/signed integrer Emmanuel Mayssat
References:
Stream Raw converter and un/signed integrer Emmanuel Mayssat

Navigate by Date:
Prev: Re: Stream Raw converter and un/signed integrer Emmanuel Mayssat
Next: Re: Stream Raw converter and un/signed integrer Dirk Zimoch
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: Re: Stream Raw converter and un/signed integrer Dirk Zimoch
Next: Re: Stream Raw converter and un/signed integrer Emmanuel Mayssat
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  <20072008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 10 Nov 2011 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·