Why does Sine block in Simulink require Fixed Point Designer? error when using block

Question

Jorge 2022-10-19

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1831118-why-does-sine-block-in-simulink-require-fixed-point-designer-error-when-using-block

回答： Piyush Dubey 2023-9-5

I get the following error:

when I try to use the sine block in Simulink. Why do I need Fixed-point designer to have this block output a value given a phase? Is there another way I can do this in my simulation?

Thanks,

Jorge

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Answer 1

Piyush Dubey 2023-9-5

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1831118-why-does-sine-block-in-simulink-require-fixed-point-designer-error-when-using-block#answer_1301356

Hi Jorge,

I understand that you are having trouble while running your simulation that comprises of a sine block and you are looking for a possible workaround to run your simulation.

In the scenario stated by you, there exists an issue with the licensing of “Fixed-Point Designer”. In MATLAB versions prior to ‘R2012b’, there were two distinct products for handling fixed-point operations. ‘The Fixed-Point Toolbox’ was responsible for fixed-point operations within MATLAB, while the ‘Simulink Fixed Point toolbox’ focused on fixed-point operations within Simulink. It seems the license to access the “Simulink Fixed-Point Designer” is not present.

Please refer to the following MATLAB Answer’s threads for more information on similar cases:

https://www.mathworks.com/matlabcentral/answers/83258-fixed-point-license-problem

https://www.mathworks.com/matlabcentral/answers/640020-fixed-point-designer-toolbox-doesn-t-exist

Implementation of sine wave that does not use the fixed-point lookup table can be a possible workaround. There exists ‘Sine wave’ Simulink block that can serve the purpose. It generates sine wave using simulation time as time source.

Please refer to the following MathWorks documentation link for more information on “Sine wave”:

https://www.mathworks.com/help/simulink/slref/sinewave.html

Hope this helps.