h3n3/klipper
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

endstop: Support oversampling of the endstop

Browse Source 
Some printers can show occasional noise on the endstop pin.  Support
sampling the endstop pin multiple times to attempt to filter out this
noise.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2017-10-01 16:31:05 -04:00
parent 776d8f9f79
commit ece1f71c64
3 changed files with 59 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
klippy/stepper.py
View File

@@ -6,6 +6,9 @@
import math, logging
import homing, pins
ENDSTOP_OVERSAMPLE_COUNT = 4
ENDSTOP_OVERSAMPLE_TIME = .000015
class PrinterStepper:
def __init__(self, printer, config, name):
self.name = name
@@ -52,6 +55,8 @@ class PrinterHomingStepper(PrinterStepper):
self.mcu_endstop = pins.setup_pin(
printer, 'endstop', config.get('endstop_pin'))
self.mcu_endstop.setup_oversample(
ENDSTOP_OVERSAMPLE_COUNT, ENDSTOP_OVERSAMPLE_TIME)
self.mcu_endstop.add_stepper(self.mcu_stepper)
self.position_min = config.getfloat('position_min', 0.)
self.position_max = config.getfloat(