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Problem programming eZdsp F28335 with MATLAB

Rubén Gálvez
Prodigy 40 points

Good Morning,

I have a scheduling problem using MATLAB 28335
I put a square wave to a LED (Digital Output)
There seems to be no problem in making the compilation, everything runs without errors, but the DSP does not show the square wave.

I have the following software
Matlab 2009a
Code Composer Studio 3.3.81.11
Code Generation tools 5.2.2
BIOS 5.33.06

I need urgent help
Thank you very much

  • 0
    Intellectual 680 points

    More Info would be Helpful. What is the frequency of your square Wave? Do you run into an illegal ISR ?Do you use Hardware Interrupts or Asynchronous Scheduling?  

  • 0 in reply to Stefan Fischer
    Prodigy 40 points

    The frequency of the square wave is 1 Hz to see it in a LED. I have not Hadware Interrupts and no Asynchronous Scheduling.

    Only a pulse generator:

    Amplitude:1

    Frequency 1Hz

    Duty Cycle 50%

    And a Digital Output in the GPIO 0 with the Target preferences of the eZdspF28335.

     

    The project in CCS is correctly generated, but the DSP seems to be in a loop in the file CodeStartBranch.asm

     

    Thank you about the answer