Veristand phar lab custom C controller

[ThomJ]

Hello Kouki,

i am not clear on what you are trying to implement.
My issue was running the nl-opt toolbox on dedicated hardware (PXI)
I never succeeded in implementing matlab code to the PXI, due to toolbox dependencies.
Thus i resorted to do all my programming in C code, with the NL-opt toolbox.

For implementing NMPC within matlab i suggest to either code from scratch (build own optimizer and MPC algorithm), use the matlab optimization toolbox (thus only coding the MPC part) or look for a NMPC toolbox (i believe this exist).

But for implementing NMPC on dedicated PXI hardware, i suggest to avoid matlab and build your code in C.

best regards,
Tom

[RIHABKOUKI]

Dear ThomJ, 

Thanks for your answer. But for this state, my problem is haw used NLOP library to optimized the Nonlinear model predictive control problem in Simulink. I have used s-function for coding the MPC part AND NLOP library for optimisation. Please if you have any information tell me. Thank you.

Best regrate 

KOUKI

[ThomJ]

If i understand correctly you are trying to implement C code in simulink using the s-function block.

i have no experience in exporting the nlopt library to matlab, and i suggest you try the mathworks forums for more help.

or try to use matlab toolboxes for your optimization, i believe either matlab or the community will have already ported most if not all of the algoritmhs available in the NL Opt library

Best of luck.

[RIHABKOUKI]

Dear ThomJ, 

Thanks for the reply,

When you are used Nl-opt toolbox in C code for solving the optimisation problem of nonlinear predictive control, you have used "NLOPT_GN_ISRES"   NLOPT algorithm?

Best regrate 

KOUKI

[RIHABKOUKI]

Dear ThomJ, 

Thanks for the reply,

When you are used Nl-opt toolbox in C code for solving the optimisation problem of nonlinear predictive control, you have used "NLOPT_GN_ISRES"   NLOPT algorithm?

[RIHABKOUKI]

Thanks for the reply,

[ThomJ]

Hi Kouki,

I have applied BOBYQA.

Best regards,
Tom

[RIHABKOUKI]

Thanks for the reply Tom.

Best regards,

KOUKI

[thumble]

I compiled a quite simple model with the VeriStand 2020R4 toolchain (selecting the windows target) and add the following custom code to avoid resolution of __setusermatherr symbol at load time (it's just an empty stub).

The model seems to work on Windows (test done with a simple custom scheduler not VeriStand).

There are no more bad entries reported by DLL checker for LV2017, but I currently have no Pharlaps target to test it in real time.