fxptdlg

Simulation min/max

Propose fraction or word lengths based on design and simulation minimum and maximum values.

Settings

Default: On

On

Proposes fraction lengths based on simulation minimum and maximum values, but only for blocks that do not specify design minimum or maximum values using, for example, Output minimum and Output maximum parameters.

If Derived min/max is also selected, the Fixed-Point Tool bases its proposal on both the derived and simulation min/max values and the proposed data types cover the union of the derived range and the simulation range.

Off

Ignores simulation minimum and maximum values when proposing fraction lengths.

Command-Line Alternative

No command line alternative available.

Dependency

This parameter appears only if you click the Configure link on the

Automatic data typing for selected system Settings pane.

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fxptdlg

Safety margin for design and derived min/max (%)

Specify safety factor for design and derived minimum and maximum values.

Settings

Default: 0

The design and derived minimum and maximum values are adjusted by the percentage designated by this parameter. For example, a value of 55 specifies that a range at least 55 percent larger is desired. A value of -15 specifies that a range up to 15 percent smaller is acceptable.

Dependency

Before performing autoscaling, you must specify design minimum and maximum values, or run a simulation to collect simulation minimum and maximum data, or collect derived minimum and maximum data.

Command-Line Alternative

No command line alternative available.

Dependency

This parameter appears only if you click the Configure link on the

Automatic data typing for selected system Settings pane.

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fxptdlg

Safety margin for simulation min/max (%)

Specify safety factor for simulation minimum and maximum values.

Settings

Default: 0

The simulation minimum and maximum values are adjusted by the percentage designated by this parameter, allowing you to specify a range different from that obtained from the simulation run. For example, a value of 55 specifies that a range at least 55 percent larger is desired. A value of -15 specifies that a range up to 15 percent smaller is acceptable.

Dependencies

Before performing automatic data typing, you must specify design minimum and maximum values or run a simulation to collect simulation minimum and maximum data, or collect derived minimum and maximum values.

Command-Line Alternative

No command line alternative available.

Dependency

This parameter appears only if you click the Configure link on the

Automatic data typing for selected system Settings pane.

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fxptdlg

Apply accepted fraction lengths

Apply scaling proposals

Action

Use this button to perform the second phase of the automatic data typing procedure, in which the Fixed-Point Tool applies the scaling proposals to the objects whose Accept check box in the Contents pane is selected.

Dependency

This button appears when Propose fraction lengths for specified word lengths is selected.

Command-Line Alternative

No command line alternative available.

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fxptdlg

Apply accepted word lengths

Apply data type proposals

Action

Use this button to perform the second phase of the automatic data typing procedure, in which the Fixed-Point Tool applies the data type proposals to the objects whose Accept check box in the Contents pane is selected.

Dependency

This button appears when Propose word lengths for specified fraction lengths is selected.

Command-Line Alternative

No command line alternative available.

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