TMS320F280049: Link Digital Compare Event ( DCAEVT2) To PWM Peripheral..

Newman

Part Number: TMS320F280049

Hi Team C2000,

My customer has the following question..

I am working with matlab to evaluate the F280049CPMS. I am on a problem, I cannot solve by my own. So hugely need TI help.

I would like to drive a full bridge peak current mode control. I need to use Digital Compare event ( DCAEVT2). I need to link Comparator sub system to pwm bloc.

To do this, I need to set up register to configure the epwm X-bar.

In particular, I have to link :

CMPSS5-CTRIPOUTH ---> e-PWM1 outputA (pin52) using Pwm Xbar GPTrip4

CMPSS3-CTRIPOUTH ---> e-PWM2 outputA (pin50) using Pwm Xbar GPTrip5

My question is: How to describe it in C.

I place the picture of the DSP architecture to illustrate my question:

Thanks, Merril

over 5 years ago

0 Nima Eskandari over 5 years ago

TI__Guru 52040 points

I have example to set up the trip zone module.

Overall the steps are,

1. Configuring the EPWM XBAR to select the sources you want.

2. Configure EPWM Trip Zone module to use EPWM XBAR inputs

3. Configure EPWMxA and xB outputs to take actions on TZ module events

Nima

0 Newman over 5 years ago in reply to Nima Eskandari

TI__Expert 6005 points

Hi Nima,

Thanks. Do you have some sample code or a sample project to do this?

Thanks, Merril

0 Nima Eskandari over 5 years ago in reply to Newman

TI__Guru 52040 points

	XBAR_setEPWMMuxConfig(XBAR_TRIP4, XBAR_EPWM_MUX04_CMPSS3_CTRIPH);
	XBAR_enableEPWMMux(XBAR_TRIP4, XBAR_MUX04);

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280049: Link Digital Compare Event ( DCAEVT2) To PWM Peripheral..