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Function-Call generator does not accept Simulink Parameter

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Vamsinag Gunti
Vamsinag Gunti 2019-2-6
关闭： MATLAB Answer Bot 2021-8-20
Hi Community,
I am using the Value of a Simulink Parameter as the sample time in the function-call generator. However, I am getting the following error:
Error evaluating parameter 'sample time' in 'MyModel/Function-Call Generator'
Caused by:
  • Struct contents reference from a non-struct array object.
For the sample time I use the value of a simulink parameter:
mySimulinkParameter =
Parameter with properties:
Value: 0.0020
CoderInfo: [1×1 Simulink.CoderInfo]
Description: ''
DataType: 'single'
Min: 0.0010
Max: 1
Unit: ''
Complexity: 'real'
Dimensions: [1 1]
I.e, I enter
mySimulinkParameter.Value
as the sample time. However I get the error that I mentioned above. Could someone please explain this error to me?
Thanks in advance.
Best Regards,
Vamsi

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回答（1 个）

Fangjun Jiang
Fangjun Jiang 2019-2-6
It's a parameter so spescify the sample time as mySimulinkParameter.
  2 个评论
Vamsinag Gunti
Vamsinag Gunti 2019-2-6
编辑：Vamsinag Gunti 2019-2-6
That was the first thing I tried. The block didn't accept the Simulink Parameter. This is the error I get:
Error reported by S-function 'fnccallgen' in 'MyModel/Function-Call Generator': Invalid sample time. Sample time must be a real scalar value or an array of two real values.
Fangjun Jiang
Fangjun Jiang 2019-2-6
编辑：Fangjun Jiang 2019-2-6
It looks like changing the data type from 'single' to be 'auto' or 'double' will eliminate the error. Worth to repor this to the Mathworks. The error does not make sense.

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