3diy
/
klipper
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

tmc5160: Add set_current()/get_current() helpers to TMC5160CurrentHelper 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2021-02-20 13:31:38 -05:00
parent 9c9f78037b
commit 8312843bbe
1 changed files with 25 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
klippy/extras/tmc5160.py
View File

@ -272,31 +272,35 @@ class TMC5160CurrentHelper:
if not globalscaler: if not globalscaler:
globalscaler = 256 globalscaler = 256
bits = self.fields.get_field(field_name) bits = self.fields.get_field(field_name)
current = (globalscaler * (bits + 1) * VREF return (globalscaler * (bits + 1) * VREF
/ (256. * 32. * math.sqrt(2.) * self.sense_resistor)) / (256. * 32. * math.sqrt(2.) * self.sense_resistor))
return round(current, 2) def get_current(self):
cmd_SET_TMC_CURRENT_help = "Set the current of a TMC driver" run_current = self._calc_current_from_field("IRUN")
def cmd_SET_TMC_CURRENT(self, gcmd): hold_current = self._calc_current_from_field("IHOLD")
run_current = gcmd.get_float('CURRENT', None, return run_current, hold_current, MAX_CURRENT
minval=0., maxval=MAX_CURRENT) def set_current(self, run_current, hold_current, print_time):
hold_current = gcmd.get_float('HOLDCURRENT', None,
above=0., maxval=MAX_CURRENT)
if run_current is None and hold_current is None:
# Query only
run_current = self._calc_current_from_field("IRUN")
hold_current = self._calc_current_from_field("IHOLD")
gcmd.respond_info("Run Current: %0.2fA Hold Current: %0.2fA"
% (run_current, hold_current))
return
if run_current is None:
run_current = self._calc_current_from_field("IRUN")
if hold_current is None:
hold_current = self._calc_current_from_field("IHOLD")
print_time = self.printer.lookup_object('toolhead').get_last_move_time()
irun, ihold = self._calc_current(run_current, hold_current) irun, ihold = self._calc_current(run_current, hold_current)
self.fields.set_field("IHOLD", ihold) self.fields.set_field("IHOLD", ihold)
val = self.fields.set_field("IRUN", irun) val = self.fields.set_field("IRUN", irun)
self.mcu_tmc.set_register("IHOLD_IRUN", val, print_time) self.mcu_tmc.set_register("IHOLD_IRUN", val, print_time)
cmd_SET_TMC_CURRENT_help = "Set the current of a TMC driver"
def cmd_SET_TMC_CURRENT(self, gcmd):
prev_run_current, prev_hold_current, max_current = self.get_current()
run_current = gcmd.get_float('CURRENT', None,
minval=0., maxval=max_current)
hold_current = gcmd.get_float('HOLDCURRENT', None,
above=0., maxval=max_current)
if run_current is None and hold_current is None:
# Query only
gcmd.respond_info("Run Current: %0.2fA Hold Current: %0.2fA"
% (prev_run_current, prev_hold_current))
return
if run_current is None:
run_current = prev_run_current
if hold_current is None:
hold_current = prev_hold_current
print_time = self.printer.lookup_object('toolhead').get_last_move_time()
self.set_current(run_current, hold_current, print_time)
###################################################################### ######################################################################