| DSP Blockset | |
Recommended Settings for Discrete-Time Simulations. The recommended Solver options settings for DSP simulations are
You can automatically set the above solver options for all new models by running the dspstartup M-file. See Configuring Simulink for DSP Systems for more information.
In Fixed-step SingleTasking mode, discrete-time signals differ from the prototype described in Discrete-Time Signals by remaining defined between sample times. For example, the representation of the discrete-time triangle wave looks like this.
The above signal's value at t=3.112 seconds is the same as the signal's value at t=3 seconds. In Fixed-step SingleTasking mode, a signal's sample times are the instants where the signal is allowed to change values, rather than where the signal is defined. Between the sample times, the signal takes on the value at the previous sample time.
As a result, in Fixed-step SingleTasking mode, Simulink permits cross-rate operations such as the addition of two signals of different rates. This is explained further in Cross-Rate Operations in Variable-Step and Fixed-Step SingleTasking Modes.
| | Discrete-Time Signals in Simulink | Additional Settings for Discrete-Time Simulations | |
