TMS570LS3137: Question for periord setting value to PWM interface.

Hi IBLEE,

INBUM LEE said:

Will it work well on tms570 if I set Halcogen's pwm0 period to 1.7718us?

Yes, you can generate the PWM with period of 1.7718us.

For the reference purpose you can refer below example:

(+) [FAQ] TMS570LC4357: Examples and Demos available for Hercules Controllers (E.g. TMS570x, RM57x and RM46x etc) - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

In this example i am generating PWM of period 6.25uS using ePWM peripheral of TMS570LC4357 controller.

Similarly, you can configure here with 1.7718uS as well.

--

Thanks & regards,
Jagadish.

INBUM LEE said:

The Halcogen of TMS570LS3137 does not have an ETPWM driver. Can I use the Het1 driver?

Yes, you are right TMS570LS31347 doesn't have EPWM peripheral.

Yes, you can use HET peripheral to generate the PWM.

You can refer below example:

In this example i am generating PWM's on HET[28] and HET[30] with period of 10ms and 2ms respectively. You can change these parameters and can configure with required parameters.

--
Thanks & regards,
Jagadish.