Hi, new here and probably being a bit dim but I've Googled and done all the obvious stuff and I cannot figure out how to program the PWM to get a 40kHz signal to drive an ultrasonic sender for a distance measurement device. I've got the example below running an giving me 8kHz but how do I scale thi…

Generating 40kHz square wave

system December 30, 2012, 8:31pm 3

You need a pwm mode that allows you to set the top.

Was the any more to your post, dhenry?