MATLAB: How to write at specific memory location of C2000 using Matlab Function in Siumulink Embedded Coder

c2000Embedded Coderembedded matlab functionmemory

Currently I am using "Memory Copy" block of Embeded Coder Support Package for Texas Instrumnets C2000 Processors to write at or to read from peripheral registers of F2837xD devices. Is it possible to do the same with 'MATLAB function block'? If yes, then what is the code to do the same?

Best Answer

Hi Sumit,

One apporach is to define the register access in a 'c' function in a 'c' source file.

You can then call this function from Matlab Function block using ceval Matlab routine.

https://www.mathworks.com/help/simulink/slref/coder.ceval.html

Make sure to add this 'c' source file in the custom code section. - Look for 'Specify Source Code and Dependencies' at link below:

https://www.mathworks.com/help/simulink/ug/integrate-ccode-ccaller.html

HTH,

Regards,

Venkatesh C

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Hi,

Attached is one approach using MATLAB function block to invoke the FFT routine as shipped from TI from within the MATLAB/Simulink.

We define FFT structure containing pointers (as needed by TI API's) and pass the same after populating the pointers with appropriate references.

We implement a wrapper function which will do this assignment to pointers.

Please refer the attached files for the same.

Note: Update the MATLAB function code for header and source file path as appropriate.