EK-TM4C1294XL: Trigger PWM

matteo lucarelli

Prodigy 100 points

Part Number: EK-TM4C1294XL

Tool/software:

Hi,

it's possble to trigger PWM with an external signal?

I'd like to have something like this:

Thank you

7 months ago

0 Keith Barkley 7 months ago

Guru 42095 points

Do you mean without CPU/interrupt intervention?

Because you can have your trigger cause in interrupt that you can use to start the PWM.

0 matteo lucarelli 7 months ago in reply to Keith Barkley

Prodigy 100 points

You mean the DI calling an interrupt handler and coding there the PWM start?
In this case how to stop the PWM?
Can I program it to produce a constant amount of pulses and then stop?

0 Keith Barkley 7 months ago in reply to matteo lucarelli

Guru 42095 points

No, but you can set up another timer that is started at the DI interrupt and stops the PWM when it expires.

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EK-TM4C1294XL: Trigger PWM