FixPt Gateway Out (Fixed-Point Blockset)

The FixPt Gateway Out block is a masked S-function that converts any data type supported by the Fixed-Point Blockset to a Simulink data type.

The Treat output as parameter controls how the output is specified. In terms of the general encoding scheme described in "Scaling" in the manual, Real World Value specifies the output as V = SQ + B where S is the slope and B is the bias, while Stored Integer specifies the output as an integer, Q. Outputting numbers as Stored Integer may be useful in these circumstances:

If generating code for a fixed-point processor, the resulting code is purely integer code and does not use floating-point operations.
If you want to partition your model based on hardware characteristics. For example, part of your model may involve simulating hardware that produces integers as output.

The Output data type parameter specifies the Simulink data type. auto indicates the Fixed-Point Blockset data type is converted to whatever data type Simulink back-propagates. Simulink's complex data type is not supported.

If the block output is treated as a real-world value, then a "V" appears in the lower right corner of the icon. If the block output is treated as an integer, then an "I" appears in the lower right corner of the icon.

Dialog Box

Treat output as: Store the output as a real world value or as an integer.
Output data type: Any data type supported by Simulink except the complex data type.

Characteristics


Input Ports	Any data type supported by the blockset
Output Port	Any built-in Simulink data type except complex
Direct Feedthrough	Yes
Sample Time	Inherited
Scalar Expansion	N/A
States	0
Vectorized	Yes

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