| 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 <2016> 2017 2018 2019 2020 2021 2022 2023 2024 2025 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 <2016> 2017 2018 2019 2020 2021 2022 2023 2024 2025 |
| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Re: stream protocol question: ASCII hex to 32-bit float |
| From: | Kevin Peterson <[email protected]> |
| To: | Eric Norum <[email protected]> |
| Cc: | EPICS tech talk <[email protected]> |
| Date: | Fri, 11 Mar 2016 15:05:55 -0600 |
Thanks. This calc works and will be good enough for the initial testing
of the sensor.
Kevin
On 3/10/16 11:03 AM, Eric Norum wrote:
> If you don’t need to worry about NaNs or Infinities I think that this
> calc record will do what you need:
>
> record(calc, "floatMap") {
> field(A, "0x3F800000")
> field(CALC,
> "B:=A?((A&0x7FFFFF)+0x800000)*2**(((A>>23)&255)-150):0;A&0x80000000?-B:B")
> }
>
>