Error while generating HDL code from Matlab: Invalid data type. H must be double.

Question

Yichuan Wang 2022-2-2

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1641335-error-while-generating-hdl-code-from-matlab-invalid-data-type-h-must-be-double

回答： Kiran Kintali 2022-2-2

采纳的回答： Walter Roberson

While trying to generate Verilog file using HDL Coder, I got the following error in the Fixed-Point Conversion step.

And the Error Report is shown as below:

The source code is an MPC controller, which have been uploaded in the attachment. Kindly help me resolve the issue.

Thanks.

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Answer 1

Walter Roberson 2022-2-2

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https://ww2.mathworks.cn/matlabcentral/answers/1641335-error-while-generating-hdl-code-from-matlab-invalid-data-type-h-must-be-double#answer_887120

There is no specialized version of quadprog() for the Fixed-Point toolbox. quadprog() is only implemented for cases where the first parameter is type double(). This is specifically documented.

https://www.mathworks.com/help/optim/ug/quadprog.html#mw_aabb0615-1665-45e4-b0fc-559bf0e20c32

The target hardware must support standard double-precision floating-point computations. You cannot generate code for single-precision or fixed-point computations.