How many pwm channels can capture?

RE: How many pwm channels can capture?

ovrebekk — Thu, 19 Nov 2015 08:58:12 GMT

I am happy to help ;)

Feel free to accept the answer if you got all your questions answered.

RE: How many pwm channels can capture?

chenyu — Thu, 19 Nov 2015 00:46:55 GMT

I know, Thank you!

RE: How many pwm channels can capture?

ovrebekk — Wed, 18 Nov 2015 09:46:48 GMT

I believe the main limiting factor is the number of GPIOTE channels, because you need to use 2 GPIOTE channels for each PWM (one to detect the rising flank, and a separate one to detect the falling flank).

With 4 GPIOTE channels in total in the nRF51 series this limits you to 2 PWM inputs that you can detect.

In the nRF52 this would be double, as there are 8 GPIOTE channels available in total.

Best regards
Torbjørn

RE: How many pwm channels can capture?

chenyu — Tue, 17 Nov 2015 00:52:32 GMT

The different PWM pulses are all independent of each other.But,they are possible to be synchronized at times.In this condition,what's the most numbers of pwm channels duty parameters it can capture?

RE: How many pwm channels can capture?

ovrebekk — Fri, 13 Nov 2015 10:01:50 GMT

Are the different PWM pulses synchronized (ie, do they go high or low at the same time), or are they all independent of each other?