3D-printing/klipper
1
0
Fork 0
mirror of https://github.com/Klipper3d/klipper.git synced 2025-07-23 22:54:10 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

heater: Support max_power setting for heaters

Browse source 
Change the mcu PWM value from an integer (0-255) to a float (0. - 1.).
Add support for limiting the maximum power (as measured over a
sufficiently long duration) to a particular heater.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2016-08-25 11:24:18 -04:00
parent 54002c4391
commit f53897758d
4 changed files with 40 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

4
klippy/mcu.py
View file

@ -245,11 +245,12 @@ class MCU_digital_out:
return self._last_value
def set_pwm(self, mcu_time, value):
dval = 0
if value > 127:
if value >= 0.5:
dval = 1
self.set_digital(mcu_time, dval)
class MCU_pwm:
PWM_MAX = 255.
def __init__(self, mcu, pin, cycle_ticks, max_duration, hard_pwm=True):
self._mcu = mcu
self._oid = mcu.create_oid()
@ -272,6 +273,7 @@ class MCU_pwm:
self.print_to_mcu_time = mcu.print_to_mcu_time
def set_pwm(self, mcu_time, value):
clock = int(mcu_time * self._mcu_freq)
value = int(value * self.PWM_MAX + 0.5)
msg = self._set_cmd.encode(self._oid, clock, value)
self._mcu.send(msg, minclock=self._last_clock, reqclock=clock
, cq=self._cmd_queue)