Measuring Pulse Width using PPI and GPIOTE

RE: Measuring Pulse Width using PPI and GPIOTE

John — Sun, 01 Mar 2020 19:28:03 GMT

Can you please post your code?

Thanks!

ovrebekk — Thu, 27 Sep 2018 10:56:11 GMT

That is good to hear.

Please share the code if you can. It is always interesting to see what caused the problem in the first place 🙂

Best regards
Torbjørn

BMagnan — Wed, 26 Sep 2018 13:52:21 GMT

I fixed the problem, I will post my code up at some point for others to see.

ovrebekk — Wed, 26 Sep 2018 13:46:05 GMT

The configuration of the SHORTS register seems a bit odd to me.

As it is now you will be clearing the timer every time CC[5] is reached, which corresponds to once every 16us. Is this intentional?

Best regards
Torbjørn

BMagnan — Tue, 25 Sep 2018 11:53:30 GMT

Yes, I enabled the channels at the end of the GPIOE configuration above.

ovrebekk — Tue, 25 Sep 2018 11:14:00 GMT

Did you remember to enable your PPI channels?

You do this through the CHENSET register:

NRF_PPI->CHENSET = (1 << 5) | (1 << 6);

Best regards
Torbjørn