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

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.

Answer 1

[Walter Roberson]

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.

Answer 2

[Kiran Kintali]

Can you share your design.m, testbench.m files and the project file with necessary settings? Thanks