unwanted behavior of PWM config_percent() on Minnow Max

[cosscat]

Hello,

Noticed an unwanted behavior of PWM on Minnow Max: 'v0.7.5-55-g5c7bab1'
Try the following:

>>> p=m.Pwm(22)
>>> p.enable(True)
0
>>> p.config_percent(10, 0.5)
0
>>> p.config_percent(10, 0.8)
0
>>> p.config_percent(10, 0.2)
0
>>> p.config_percent(10, 0.8)
0
>>> p.config_percent(10, 0.9)
0
>>> p.config_percent(10, 0.8)
0
>>> p.config_percent(10, 0.9)
0
>>> p.config_percent(10, 0.8)
0
>>> p.config_percent(10, 0.9)
0
>>> p.config_percent(10, 0.7)
0
>>> p.config_percent(10, 0.5)
0
>>> p.config_percent(10, 0.9)

where the first parameter is the period in ms and the second the percentage of "on" state.
You will notice (for an LED) that when doing the p.config_percent(10, 0.9) it will light less than on
p.config_percent(10, 0.5)

[cosscat]

same happens for:

p.enable(True)
0
p.period(0.1)
p.pulsewidth(0.05)
0
p.pulsewidth(0.09)

The same behavior is valid for the second PWM pin: 24
It is something related to 90% duty cycle, no matter how one sets it.

[alext-mkrs]

Unfortunately I don't have a MinnowBoard check this out, @cosscat are you able to reproduce this on either generation of Galileos or an Edison (all of which I have)?

[cosscat]

Sorry for the late reply,

Things are fine with Galileos ... will update shortly for Edison

[cosscat]

Edison is fine too