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From: James Tursa on 27 May 2010 18:25
Walter Roberson <roberson(a)hushmail.com> wrote in message <htmqqd$6vm$1(a)canopus.cc.umanitoba.ca>...
>
> Hmmm, looking further, it appears that Matlab is now only offered for "big
> endian" systems

Huh? PC's are Little Endian.

James Tursa
From: Walter Roberson on 27 May 2010 18:39
James Tursa wrote:
> Walter Roberson <roberson(a)hushmail.com> wrote in message
> <htmqqd$6vm$1(a)canopus.cc.umanitoba.ca>...
>>
>> Hmmm, looking further, it appears that Matlab is now only offered for
>> "big endian" systems
>
> Huh? PC's are Little Endian.

I knew something looked wrong as I was typing it, sigh.
From: Thanushka on 27 May 2010 18:43
"James Tursa" <aclassyguy_with_a_k_not_a_c(a)hotmail.com> wrote in message <htmrg2$fuo$1(a)fred.mathworks.com>...
> Walter Roberson <roberson(a)hushmail.com> wrote in message <htmqqd$6vm$1(a)canopus.cc.umanitoba.ca>...
> >
> > Hmmm, looking further, it appears that Matlab is now only offered for "big
> > endian" systems
>
> Huh? PC's are Little Endian.
>
> James Tursa


I'm running Matlab R2009a and this solution seems to be working fine. The data is stored in a matrix which seems to default to double data type. Thanks a lot to both replies. Much appreciated.
From: Thanushka on 27 May 2010 18:49
Walter Roberson <roberson(a)hushmail.com> wrote in message <htmqqd$6vm$1(a)canopus.cc.umanitoba.ca>...
> Thanushka wrote:
> > Walter Roberson <roberson(a)hushmail.com> wrote in message
> > <htmp2a$48f$1(a)canopus.cc.umanitoba.ca>...
> >> Thanushka wrote:
> >>
> >> > I am currently doing a project and am a novice to Matlab. I have a >
> >> problem where i receive serial 'dataframes', each consisting of two >
> >> 8-bit values (the high byte and the low byte), which have to be >
> >> constructed to get a 16-bit value. This assembled value is already in
> >> > two's complement and I need to get the original value.
>
> >> typecast([uint8(HighByte), uint8(LowByte)], 'int16')
> >>
> >> On some systems you may need to reverse the high and low bytes.
>
> > Thanks but by the original value i meant the value before taking the
> > two's complement. My original post may not have been clear. Sorry. eg:
> > LowByte = 0xFE HighByte = 0xFF Answer should equal -2
>
> As I said, you may need to reverse the bytes on some systems.
>
> >> typecast(uint8([hex2dec('FE'),hex2dec('FF')]),'int16')
> ans =
> -2
>
>
> Hmmm, looking further, it appears that Matlab is now only offered for "big
> endian" systems, so reversing the bytes is possibly needed on all current
> Matlab systems. Still, there are plenty of people around running older Matlab
> releases, possibly on systems that are little-endian .

I'm running Matlab R2009a and this solution seems to be working fine. The data is stored in a matrix which seems to default to double data type. Thanks a lot to both replies. Much appreciated.
From: Thanushka on 28 May 2010 06:00
"Thanushka " <galazz442(a)gmail.com> wrote in message <htmshq$lmk$1(a)fred.mathworks.com>...
> "James Tursa" <aclassyguy_with_a_k_not_a_c(a)hotmail.com> wrote in message <htmrg2$fuo$1(a)fred.mathworks.com>...
> > Walter Roberson <roberson(a)hushmail.com> wrote in message <htmqqd$6vm$1(a)canopus.cc.umanitoba.ca>...
> > >
> > > Hmmm, looking further, it appears that Matlab is now only offered for "big
> > > endian" systems
> >
> > Huh? PC's are Little Endian.
> >
> > James Tursa
>
>
> I'm running Matlab R2009a and this solution seems to be working fine. The data is stored in a matrix which seems to default to double data type. Thanks a lot to both replies. Much appreciated.

Maybe unrelated but any idea how to implement this in C#?
Thanks in advance....
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