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Multiple PWM input capture on one timer

Question asked by foley.bob on Feb 12, 2013
Latest reply on Jan 13, 2016 by Clive One

I am able to accurately capture one PWM input on each 16- and 32-bit timers on the STM32F4x and STM32F3x Discovery boards (using IC1 and IC2). But, I have not had any luck capturing two PWM singnals on a single timer. From the diagrams, it appears to be possible using IC3 and IC4.

Any ideas?

EDIT: Actually, I don't need the duty cycles - only the pulse widths. I would think that it would be possible to set up a timer to latch the pulse width counter only and sample 4 PWMs simultaneously, one on each channel. This would be ideal.

Thank you.

-Bob F.