System Objects Supported for Automated Fixed-Point Conversion
Use the fiaccel
function to automatically propose and apply data types for
commonly used system objects. The proposed data types are based on simulation data from the
System object™.
Automated conversion is available for these DSP System Toolbox™ System Objects:
dsp.FIRFilter
(Direct Form and Direct Form Transposed only)
You cannot propose data types for these System objects based on static range data.
You must configure the System object to use
'Custom'
fixed-point settings.The
fiaccel
function applies the proposed data types only if the input signal is floating point, not fixed-point.fiaccel
treats scaled doubles as fixed-point. The scaled doubles workflow for System objects is the same as that for regular variables.fiaccel
ignores the Default word length setting in the Settings menu, as well as specified rounding and overflow modes. Data-type proposals are based on the settings of the System object.