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fan: Clarify hardware_pwm and allow cycle_time to be set on software pwm

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Specify hardware pwm cycle times using the same method as software pwm
(in seconds, not clock ticks).  Allow the fan code to be configured
with an explicit cycle time even when using software pwm.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-01-29 12:54:06 -05:00
parent b7b216af7f
commit 21df21b7af
9 changed files with 46 additions and 51 deletions
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12
klippy/extras/replicape.py
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@ -3,6 +3,7 @@
# Copyright (C) 2017,2018 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import logging
import pins, mcu
REPLICAPE_MAX_CURRENT = 3.84
@ -37,11 +38,12 @@ class pca9685_pwm:
return self._mcu
def setup_max_duration(self, max_duration):
self._max_duration = max_duration
def setup_cycle_time(self, cycle_time):
pass
def setup_hard_pwm(self, hard_cycle_ticks):
if hard_cycle_ticks:
raise pins.error("pca9685 does not support hard_pwm parameter")
def setup_cycle_time(self, cycle_time, hardware_pwm=False):
if hardware_pwm:
raise pins.error("pca9685 does not support hardware_pwm parameter")
if cycle_time != self._cycle_time:
logging.info("Ignoring pca9685 cycle time of %.6f (using %.6f)",
cycle_time, self._cycle_time)
def setup_start_value(self, start_value, shutdown_value, is_static=False):
if is_static and start_value != shutdown_value:
raise pins.error("Static pin can not have shutdown value")