Can I use HDL Verifier cosimulation blocks in a Simulink model with continuous states?
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In the HDL co-simulation tutorial provided by Mathworks (page 4-63 of the HDL Verifier User's Guide, R2014A), I read the sentence: "Configure the Simulink solver options for a fixed-step, discrete simulation; this is required for cosimulation operation." For the simple model being described in the tutorial, using the fixed-step solver makes sense. But this sentence makes it sound like the fixed-step solver must be used for all models which include co-simulation blocks. This would mean that co-simulation cannot be applied in models which have blocks with continuous states outside the HDL block. Is this correct? Or is this just a poorly-worded sentence in the tutorial?
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Dan Massie
am 28 Jan. 2016
Did you ever get an answer to this question? Can you have continuous states outside of the HDL block? Thanks.
Antworten (1)
Sandip Kumar
am 9 Okt. 2014
During HDL co-simulation using HDL Verifier, the generated HDL code is being tested. The HDL code generation step requires Fixed-step and discrete (recommended) as options as listed here:
http://www.mathworks.com/help/releases/R2014b/hdlcoder/ug/hdl-workflow-advisor-tasks.html#bs8lmzh-39
And more information about them is covered in the 'hdlSetup' function documentation:
Also as mentioned :
- Solver: Discrete (no continuous states). Other fixed-step solvers could be selected, but this option is usually the best one for simulating discrete systems.
As it says, it is recommended, which means if needed you can always select another solver option under 'Fixed-Step'.
Thanks, Sandip, MathWorks
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