• State Resolved
  • Locked Locked
  • Replies 4 replies
  • Subscribers 29 subscribers
  • Views 594 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Symmetrical / Center-aligned PWMs using HalCoGen

Suyog Mahajan
Intellectual 520 points
Other Parts Discussed in Thread: HALCOGEN

Hello,

 I wanted to generate Symmetrical / Center-aligned 3 PWMs using HalCoGen. I tried it with HET IDE but I am much familiar with HalCoGen. I want to extend it further for respected  variable duty cycle and inverted PWMs.  

Regards,  

Suyog

  • 0
    TI__Guru 65480 points
    Hi Suyog,

    You won't be able to get this with HalCoGen's HET program. That doesn't support symmetric, center aligned PWMs.

    Did you already look at the 3Phase PWM program we have posted here on the forum before?
  • 0 in reply to Anthony F. Seely
    Intellectual 520 points

    Hello, 

             Thank you for speedy reply. Earlier, I have gone through all postings related  to this topic. I am getting problem for implementation level. How  / Through what should I call for update ( duty cycle) cycle? I am new to micro-controller programming. 

            Can you help me out for some basic / sample  programs to update duty cycle ?

    Regards,

    Suyog

  • 0 in reply to Suyog Mahajan
    TI__Guru 65480 points
    Suyog,

    So for the 3 Phase program we posted on the forum you have to write some host side API code that writes the duty cycle to specific addresses in the HET RAM, corresponding to the HET program.

    It's best to do it this way:
    a) run the program in the HET IDE to understand how it works.
    'simulate' what the CPU host side driver would do by writing the period and duty cycle to memory
    through the GUI.

    b) then write code to do the same as you saw working in the simulator.

    Depending on which variant of the 3ph PWM code you are working with the address to write to is different. So let me know what code you are working with and I can point you in the right direction.
  • 0 in reply to Anthony F. Seely
    Intellectual 520 points
    Hello Anthony,
    Thank you for your guidance. Give me some time to get familiar. As I am completely new to that system.

    Regards,
    Suyog