From: "Matthew Heaney" <matthewjheaney@earthlink.net>
Subject: Re: float with 24-bit resolution
Date: Sat, 16 Aug 2003 15:29:39 GMT
Date: 2003-08-16T15:29:39+00:00 [thread overview]
Message-ID: <D5s%a.5303$7z1.5026@newsread3.news.pas.earthlink.net> (raw)
In-Reply-To: qB6%a.119963$Oz4.25059@rwcrnsc54
"Jeffrey Creem" <jeff@thecreems.com> wrote in message
news:qB6%a.119963$Oz4.25059@rwcrnsc54...
>
> "Adrian Hoe" <mailbox@nospam.adrianhoe.com.my> wrote in message
> news:3f3cd84f$1_2@news.tm.net.my...
> >
>
> 1) Byte Order - The little endian/big endian thing. 24 bit types on little
> endian machines talking to big edian H/W (or vice versa)..
> 2) Getting the 24 bit type in the first place. How do you get the data
from
> the HW into memory to work with to start with. It is not
> uncommon to have to do 32 bit or 16 bit transfers so you need a method for
> getting the data to start with.
It doesn't matter: just specify the same T'Small but set T'Size = 32.
(In general you should always specify T'Small for fixed point types.)
> 3) As another poster mentioned, there is the issue of what you do with the
> data once you get it. These fixed point types might be good
> as a starting point to get the data into a format that you can begin to
work
> with but once you start doing calculations on them you will
> almost certainly need additional higher resolution fixed point types or
> floating point of some precision to do you caculations.
Fine: just convert it from the fixed point type to whatever type you desire.
next prev parent reply other threads:[~2003-08-16 15:29 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-08-15 11:59 float with 24-bit resolution mailbox
2003-08-15 12:24 ` Jeffrey Creem
2003-08-15 12:52 ` Adrian Hoe
2003-08-15 12:54 ` Adrian Hoe
2003-08-15 15:01 ` Jeffrey Creem
2003-08-16 15:29 ` Matthew Heaney [this message]
2003-08-15 13:39 ` Mark Johnson
2003-08-15 16:56 ` Robert I. Eachus
2003-08-15 18:08 ` Mark Johnson
2003-08-16 3:30 ` Robert I. Eachus
2003-08-18 13:39 ` Mark Johnson
2003-08-20 21:12 ` Robert I. Eachus
2003-08-21 13:38 ` Mark Johnson
2003-08-16 15:32 ` Matthew Heaney
2003-08-16 15:26 ` Matthew Heaney
2003-08-15 19:56 ` Simon Wright
2003-08-16 4:21 ` Adrian Hoe
2003-08-16 12:59 ` Jeffrey Creem
2003-08-16 15:35 ` Matthew Heaney
2003-08-17 11:40 ` Simon Wright
2003-08-17 13:46 ` Matthew Heaney
2003-08-18 5:05 ` Adrian Hoe
2003-08-18 13:14 ` Matthew Heaney
2003-08-19 3:09 ` Adrian Hoe
2003-08-19 13:00 ` Matthew Heaney
2003-08-30 5:02 ` Randy Brukardt
2003-09-02 16:05 ` Adrian Hoe
2003-09-03 3:31 ` Matthew Heaney
2003-09-03 20:46 ` Simon Wright
2003-09-04 1:43 ` Randy Brukardt
2003-09-04 9:53 ` Jean-Pierre Rosen
2003-09-05 3:46 ` Randy Brukardt
2003-09-05 17:16 ` Warren W. Gay VE3WWG
2003-09-05 19:37 ` Randy Brukardt
2003-09-06 20:48 ` Warren W. Gay VE3WWG
2003-09-08 7:53 ` Dmitry A. Kazakov
2003-09-04 1:45 ` Randy Brukardt
2003-08-16 3:42 ` Robert I. Eachus
2003-08-16 15:38 ` Matthew Heaney
2003-08-16 16:36 ` Robert I. Eachus
2003-08-16 15:22 ` Matthew Heaney
2003-08-17 11:46 ` Simon Wright
2003-08-18 10:04 ` Martin Dowie
2003-08-20 19:53 ` Robert I. Eachus
2003-08-20 23:36 ` Ludovic Brenta
2003-08-21 13:54 ` Mark Johnson
2003-08-21 14:35 ` Ludovic Brenta
2003-08-22 14:07 ` Mark Johnson
2003-08-22 15:12 ` Jean-Pierre Rosen
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