From: Keith Packard <keithp@keithp.com>
Date: Sun, 10 Jan 2016 23:56:21 +0000 (-0800)
Subject: altos: Switch PWM constants to end up exposing µsec
X-Git-Tag: 1.6.2^2~9
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=a66e57e0e92cdbd3c6a10b835c50f55647c07351;hp=a66e57e0e92cdbd3c6a10b835c50f55647c07351

altos: Switch PWM constants to end up exposing µsec

This changes the constants so the clock runs at 1MHz, making the step
1µsec each. Then make the period 20000 steps, or 20ms for a 50Hz
frequency as before.

Signed-off-by: Keith Packard <keithp@keithp.com>
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