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DBREDHR not working in 28377D

Amtech
Genius 4545 points

Hi all,

I am using 28377D controller. I have configured dead band in half clocking mode. I got fine frequency but when i trying to use HR dead band on rising edge it is not working properly. Means that there is no effect on dead band. what should i do?

So, because of dead band i can not maintain same duty on ePWM1A and ePWM2A. I need to control a H-bridge of MOSFET.

  • 0
    TI__Genius 10820 points

    Hi,

    Please make sure that register HRCNFG2 and HRCNFG (EALLOW protected registers) are correctly configured for HRPWM and HRDB operation. You can check the register values in the expressions/register window inside CCS debug view.

    If the values seem correct, please share them here.

    Thank you,

    Hrishi

  • 0 in reply to Hrishi Nene
    Genius 4545 points
    Thanks for reply.

    i will check as per your suggestion. And let you know about that.

    Another issue is that i can not put breakpoint in my software even i had not used 2 h/w breakpoint.
    i can watch value of all register on watch window & also pause and resume debugging session.