Unfortunately you cannot setup the deafult round and overflows modes to be
something else.
You could however create a fimath object with your required round and
overflow modes & use this fimath in (all ) of the fis that you  create:

F = fimath(.<your inputs>);
a = fi(0,1,16,15); a.fimath = F;


"porterboy" <porterboy76@yahoo.com> wrote in message
news:c4b57fd0.0409150612.4d568841@posting.google.com...
> Another Question...
>
> The default settings in the fixed point toolbox are
> 'RoundMode' = 'Round'
> 'OverflowMode' = 'Saturate'
>
> Is there anyway to set the defaults at startup such that
> 'RoundMode' = 'Floor'
> 'OverflowMode' = 'Wrap'

Another Question...

The default settings in the fixed point toolbox are
'RoundMode' = 'Round'
'OverflowMode' = 'Saturate'

Is there anyway to set the defaults at startup such that
'RoundMode' = 'Floor'
'OverflowMode' = 'Wrap'