Function-Call generator does not accept Simulink Parameter

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

Answer 1

[Fangjun Jiang]

It's a parameter so spescify the sample time as mySimulinkParameter.

[Vamsinag Gunti]

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]

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.