Compiler/TMS320F28377S: Regarding CCS Code

Ajinkya,

I did not understand your question, and how it correlates with the code you have pasted?

I am working on the controller. In the above equation, e.g

1. Qs = (-1.5)*(2*Ws*Mfif1); and 

2. Mfif=Mfif0+(Ts/5050)*(15000-Qs1+Dq*(Vref-325)); 

to solve "Qs"  need "Mfif"  and to solve "Mfif" need Qs.  So, its loop.

Same with "Te" and 'Ws". These four equations depend on each other.

When I run it, did not get a result.

So, how I write the code to solve this loop?

If your code is specific to one of the areas in which we specialize in, one of our System Apps experts may be able to guide you.

What's the application of this real-time control loop? Is it something related to Motor control or Digital Power?

It's an inverter controller to control the output power. 

Hi,

Have you tried to run it on the simulation S/W like Matlab? As it is all about the initial condition and simultaneous equations, simulation is a better way to validate.

Best,

John

Yes  sir,

 I validate It in Matlab simulation.

Can you check the variable types (ex: float, int)? If the code was validated in Matlab, it should work in CCS as well.

sir, 

I simulate the controller in Matlab and validate it. But when I tried to validate it through code in Matlab function I did not get results.

In CCS code all the variables are float type.

For MathWorks approach, did you use this?

https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/484814

Or did you try generic code generation (ANSI, ISO C) without optimizations?

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If you are using either of the above methods, it is possible this question needs to go to MathWorks Tech Support, who you can contact here.

Cheers,

-Brian

Sir,

I am tried to develop a model using C2000 tool in Simulink. The model burns inTMS320F28377s but I did not get results. yet I can't found the mistake in model.

Hello,

This may be a MathWorks software issue, but MathWorks Tech Support does not monitor or provide help in these TI forums.

To get MathWorks Tech Support, you need to contact them directly via this link. They may wish to get a copy of your model for review.

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Were you able to run one of the shipping models examples? That would verify that your set-up is ok. If you cant run a simple example, then you likely have something incorrect (compiler setting, code generation settings, etc). MathWorks Tech Support may be able to help with this.

Cheers,

-Brian

Ajinkya,

1. Did you verified the function in Matlab and got the results?

2. Did you use the code generation method shown below?

I tried to verify the code through Matlab Function but I did not get results. 

 equations are: 

1. Te = (1.5*Mfif*15);  

2. d(Ws)/dt = (1/J)*(Tm-Te+40*(314-Ws)).

3. Qs = (-1.5)*(2*Ws*Mfif)

4. d(Mfif)/dt = (1/5050)*(15000-QS+Dq*(Vef-325.26)) 

5. E =Ws*Mfif

So I descretized these equation by backword descretize method, which is given in question. And use same in Matlab Function, but I did not get results. 

I also tried to generate the code by code generation technique given in Matlab using the C2000 tool. In that code in load in microcontroller successfully but don't get results. May be an issue with some setting in Matlab config that I don't know

The first step should be writing the correct equation and validate it on simulation S/W.

Providing the correction for the general algorithm or code is beyond the scope of e2e support.