FixPt Conversion Inherited (Fixed-Point Blockset)

Convert from one Fixed-Point Blockset data type to another, and inherit the data type and scaling

Description

The FixPt Conversion Inherited block is a masked S-function that forces dissimilar data types to be the same. The first (top) input is used as the reference signal and the second (bottom) input is converted to the reference type by inheriting the data type and scaling information. Either input will be scalar expanded such that the output has the same width as the widest input.

If you want to specify the data type and scaling when converting from one Fixed-Point Blockset data type to another, you should use the FixPt Conversion block.

For a detailed description of all block parameters, refer to Block Parameters. For more information about converting from one Fixed-Point Blockset data type to another, refer to Signal Conversions.

Remarks

Inheriting the data type and scaling provides these advantages:

It makes reusing existing models easier.

It allows you to create new fixed-point models with less effort since you can avoid the detail of specifying the associated parameters.

Parameters and Dialog Box

Round toward: Rounding mode for the fixed-point output.
Saturate to max or min when overflows occur: If checked, fixed-point overflows saturate. Otherwise, they wrap.
Override data type(s) with doubles: If checked, the inherited data type is overridden with doubles.
Log minimums and maximums: If checked, minimum and maximum simulation values are logged to the workspace.

Characteristics

Input Ports
Any data type supported by the blockset

Output Port
Any data type supported by the blockset

Direct Feedthrough
Yes

Sample Time
Inherited

Scalar Expansion
Yes

States
0

Input Ports	Any data type supported by the blockset
Output Port	Any data type supported by the blockset
Direct Feedthrough	Yes
Sample Time	Inherited
Scalar Expansion	Yes
States	0

FixPt Conversion FixPt Data Type Propagation