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DSP Blockset 3.0: Documentation Updates
This section includes additional information about the DSP Blockset, including information about compatibility issues, that is not included in the Release 11 New Features document.Configuring Simulink for DSP
DSP Blockset 3.0 includes a startup script calleddspstartup.m that configures the Simulink environment for DSP systems. It automates a number of typical tasks that you probably now do manually, such as setting the solver type to Fixed step and the Stop time to inf.
You can run this script from the MATLAB command line at any time by typing
dspstartupTo automatically configure the Simulink environment at startup, add a call to
dspstartup.m from your startup.m file. For more information, see the reference for dspstartup in the DSP Blockset User's Guide.
Matrix From Workspace Block
The Sample time parameter of the Matrix From Workspace block (in the Sources library) now requires a single scalar value to define the block's sample period. In previous releases, the Sample time parameter accepted a length-N vector containing the actual sample times corresponding to each of the N consecutive matrix outputs. Matrix From Workspace blocks from earlier versions of the DSP Blockset will continue to function in Simulink 3.0 models. However, if you replace them with the 3.0 version of the block, you should remember to change the Sample time parameter to the appropriate scalar value.Multirate Filter Blocks
The delays introduced by the blocks in the Multirate Filters library may have changed. Consult the DSP Blockset User's Guide.Sine Wave Block
The Release 11 New Features document incorrectly refers to the Sine Wave block as the Vectorized Sine Wave block.Compatibility with Real-Time Workshop Embedded-C Target
Certain blocks in the DSP Blockset, listed in Table 6-1 below, cannot currently generate code in the Real-Time Workshop Embedded-C Target format. However, these blocks can generate code in all other Real-Time Workshop formats.| Block Library |
Block Name |
| DSP Sources | From Wave Device |
| From Wave File |
|
| N-Sample Enable |
|
| Sine Wave |
|
| DSP Sinks | Matrix To Workspace |
| To Wave Device |
|
| To Wave File |
|
| Matrix Functions |
Matrix To Workspace |
| Linear Algebra | Backward Substitution |
| Cholesky Factorization |
|
| Forward Substitution |
|
| LDL Factorization |
|
| Levinson Solver |
|
| LU Factorization |
|
| QR Factorization |
|
| QR Solver |
|
| Reciprocal Condition |
|
| Transforms | DCT |
| FFT |
|
| IDCT |
|
| IFFT |
|
| Buffers | Queue |
| Stack |
|
| Switches and Counters | Multiphase Clock |
| N-Sample Enable |
|
| Parametric Estimation |
Burg AR Estimator |