User`s guide

New Features
13-7
The data signal input and output ports (noncontrol input and output ports) of
the following blocks now support the single-precision (32-bit) floating-point
data type:
Blocks with Tunability Enhancements
The following blocks have enhanced tunability:
•Chirp —
Target time parameter is now tunable.
•Counter —
Maximum count parameter is now tunable.
•Mean —
Reset port parameter is now tunable.
•Pad —
Value parameter is now tunable.
Enhancements to Blocks Implemented with
S-Functions
Many of the DSP Blockset blocks are S-function blocks (implemented with
Simulink S-functions). The following sections summarize some of the major
DSP Blockset 4.1 enhancements that improve S-function block performance
and help you to write better S-functions.
Use of Simulink Run-Time Parameters
Many S-function blocks now generate better optimized Real-Time Workshop
C code by using Simulink run-time parameters (RTPs) for both mask dialog
and internal parameters. Blocks that use RTPs include those with filter
coefficient parameters and initial condition parameters.
•dB Gain
•Discrete Impulse
•FFT (in table lookup mode)
•IFFT (in table lookup mode)
•Matrix Multiply
•Matrix Sum
• Maximum
• Polynomial Stability Test
• Quantizer
• Uniform Decoder
• Uniform Encoder
• Window Function