How to generate a Simulink S-Function programmatically?
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Hello, i have different Simulink models with lots of Subsystems in there. Some of these Subsystems must be generated as s-function. I was thinking about writing a script to generate the s-functions, but i don't found a function building s-functions programmatically. Is there any way?
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Saurabh Gupta
2017-7-19
You should be able to use a combination of instructions in the following two documentation sections to write a script that generates S-functions for you.
The high level idea is to
- set the System Target as 'rtwsfcn.tlc',
- make sure "Create new model" is selected, and
- use the subsystem handle to call the 'rtwbuild' function like
>> new_block = rtwbuild(subsystem_handle)
The 'rtwbuild' function will return the handle to the newly created S-function block, which you should be able to use to perform the intended operations on the new block (like replacing the sub-system with it or saving the block in a new model).
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Gordon
2017-8-24
If the subsystem is connected to a bus-signal, this method won't work:
"The input to the Bus Selector block must be a virtual or nonvirtual bus signal.A possible cause of this error is the use of a bus-capable block"
When manually clicking "Build selected Subsystem" Simulink automatically creates two subsystems left and right to the s-function. Is there any way to programmatically (via script) trigger this process?
Thanks very much in advance!
Moritz Burghardt
2021-9-23
You need to deselect the option "Generate Code only". You can do it programatically:
set_param(cs,'GenCodeOnly',0); % Deselect "Generate code only"
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