Why am I unable to specify the word size or work with integer arithmetic in the Filter Design Toolbox?

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I am using the Filter Design and Fixed-Point Toolboxes in a simulation of IIR and FIR filters which are implemented with integer representation. I have not been able to assign variables desired word sizes and I have not been able to get integer results as desired.
I would like to see a prearranged configuration in which all the arithmetic is performed with integers and all the user has to specify is word sizes for inputs and results.

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 27 Jun 2009
This enhancement has been incorporated in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:
The ability to specify the word size or work with integer arithmetic is not available in the Filter Design Toolbox.
There are no workarounds.

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