I'm trying to control a servo using timer2 and interrupts. The servo's
docs say:

"... require 3-5V peak to peak square wave pulse. Pulse duration is from
.9mS to 2.1mS with 1.5mS as center. The pulse refreshes at 50Hz (20mS)"

First, what do they mean by "the pulse refreshes at 50Hz"?

Second, I am assuming I want a 50% duty cycle?

Third, When I eventually want to change the wave, do I simply adjust PR2
or do I have to change CCPR1L:CCP1CON<5:4>, as well?

I apologize if this is too mundane, but I'm very new at this.

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