HRPWM with C2000 coder

Question

Hi,

I would like to use HRPWM functionality in my application on TMS320F280049C. TI C2000 Coder supports only EPWM. Is there a way to create a block for EPWM with HRPWM function for scratch or extend functionality of already available EPWM block? I must inluce tight phase shift modulation on my model of PSFB.

Also I noticed that there is a possible mistake with F28004x driver for pwm:

void PLX_PWM_configure(PLX_PWM_Handle_t aHandle, uint16_t aModulator, const PLX_PWM_Params_t *aParams){

PLX_PWM_Obj_t *obj = (PLX_PWM_Obj_t *)aHandle;

PLX_ASSERT(aModulator >= 1);

PLX_ASSERT(aModulator <= 6);
...
}

Second assert causes that program stucks when flashed on device with EPWM7 and EPWM8 configured

Answer 1

Thanks for bringing that driver issue to our attention!

The TI C2000 PWM blocks don't support the HRPWM operation.  The code generation tool chain is open and modifiable, but adding additional functionality is not trivial and will be difficult to keep in sync with future releases of the Target Support Package.

I'll reach out to you off the forum to discuss your application in more detail.