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tmc: Implement coolstep_threshold for drivers that support it

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Signed-off-by: Alex Voinea <voinea.dragos.alexandru@gmail.com>
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Alex Voinea 2024-05-14 22:21:58 +02:00 • committed by KevinOConnor
parent 0f3f29101c
commit 5249d955bb
6 changed files with 50 additions and 0 deletions
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16
klippy/extras/tmc.py
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@ -616,3 +616,19 @@ def TMCStealthchopHelper(config, mcu_tmc):
else:
# TMC2208 uses en_spreadCycle
fields.set_field("en_spreadcycle", not en_pwm_mode)
# Helper to configure StallGuard and CoolStep minimum velocity
def TMCVcoolthrsHelper(config, mcu_tmc):
fields = mcu_tmc.get_fields()
velocity = config.getfloat('coolstep_threshold', None, minval=0.)
tcoolthrs = 0
if velocity is not None:
stepper_name = " ".join(config.get_name().split()[1:])
sconfig = config.getsection(stepper_name)
rotation_dist, steps_per_rotation = stepper.parse_step_distance(sconfig)
step_dist = rotation_dist / steps_per_rotation
mres = fields.get_field("mres")
tcoolthrs = TMCtstepHelper(step_dist, mres,
mcu_tmc.get_tmc_frequency(), velocity)
fields.set_field("tcoolthrs", tcoolthrs)