fan: Default to using software PWM

Not all hardware has PWM support and there is no compelling reason to
use hardware PWM for fans.  Change the default to use software PWM.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 5 insertions, 5 deletions

diff --git a/klippy/mcu.py b/klippy/mcu.py
index 129024ba..38e34270 100644
--- a/klippy/mcu.py
+++ b/klippy/mcu.py
@@ -251,7 +251,7 @@ class MCU_digital_out:
 
 class MCU_pwm:
     PWM_MAX = 255.
-    def __init__(self, mcu, pin, cycle_ticks, max_duration, hard_pwm=True):
+    def __init__(self, mcu, pin, cycle_ticks, max_duration, hard_pwm=False):
         self._mcu = mcu
         self._oid = mcu.create_oid()
         self._last_clock = 0
@@ -510,14 +510,14 @@ class MCU:
     def create_digital_out(self, pin, max_duration=2.):
         max_duration = int(max_duration * self._mcu_freq)
         return MCU_digital_out(self, pin, max_duration)
-    def create_pwm(self, pin, hard_cycle_ticks, max_duration=2.):
+    def create_pwm(self, pin, cycle_time, hard_cycle_ticks=0, max_duration=2.):
         max_duration = int(max_duration * self._mcu_freq)
         if hard_cycle_ticks:
-            return MCU_pwm(self, pin, hard_cycle_ticks, max_duration)
+            return MCU_pwm(self, pin, hard_cycle_ticks, max_duration, True)
         if hard_cycle_ticks < 0:
             return MCU_digital_out(self, pin, max_duration)
-        cycle_ticks = int(self._mcu_freq / 10.)
-        return MCU_pwm(self, pin, cycle_ticks, max_duration, hard_pwm=False)
+        cycle_ticks = int(cycle_time * self._mcu_freq)
+        return MCU_pwm(self, pin, cycle_ticks, max_duration, False)
     def create_adc(self, pin):
         return MCU_adc(self, pin)
     # Clock syncing