Problem with ePWM 11 in F28075 Experiment kit

Other Parts Discussed in Thread: CONTROLSUITE

Hi Guys,

CCS v 6.2(compiler version = TI v15.12.3.LTS)

TMX320F28075 Control Card

control Suite v 3.4.1

Example program used: ..\controlSUITE\device_support\F2807x\v200\F2807x_examples_Cpu1\epwm_up_aq

I modified the EPWM3 configuration to EPWM11 (replaced Epwm3Regs with Epwm11Regs).

I have enabled the clock for epwm11. I have initialized the epwm11 GPIO as:

void InitEPwm11Gpio(void)
{
    EALLOW;
    //
    // Disable internal pull-up for the selected output pins
    // for reduced power consumption
    // Pull-ups can be enabled or disabled by the user.
    // This will enable the pullups for the specified pins.
    // Comment out other unwanted lines.
    //
    GpioCtrlRegs.GPAPUD.bit.GPIO20 = 1;    // Disable pull-up on GPIO20 (EPWM11A)
    GpioCtrlRegs.GPAPUD.bit.GPIO21 = 1;    // Disable pull-up on GPIO21 (EPWM11B)

    //
    // Configure EPWM-11 pins using GPIO regs
    // This specifies which of the possible GPIO pins will be EPWM11 functional
    // pins.
    // Comment out other unwanted lines.
    //
    GpioCtrlRegs.GPAMUX2.bit.GPIO20 = 5;   // Configure GPIO20 as EPWM11A
    GpioCtrlRegs.GPAMUX2.bit.GPIO21 = 5;   // Configure GPIO21 as EPWM11B

    EDIS;
}

And the Counter and CMP values are working, as you can see below:

Now I do not get outputs at Pin 68 (GPIO20) and Pin 70 (GPIO21) in the experiment kit. But the other epwm 1 nad 2 gives pwm outputs as expected. Please let me know what am I doing wrong?