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-rw-r--r--klippy/extras/tmc.py17
1 files changed, 17 insertions, 0 deletions
diff --git a/klippy/extras/tmc.py b/klippy/extras/tmc.py
index e7c0239f..366e00b1 100644
--- a/klippy/extras/tmc.py
+++ b/klippy/extras/tmc.py
@@ -632,3 +632,20 @@ def TMCVcoolthrsHelper(config, mcu_tmc):
tcoolthrs = TMCtstepHelper(step_dist, mres,
mcu_tmc.get_tmc_frequency(), velocity)
fields.set_field("tcoolthrs", tcoolthrs)
+
+# Helper to configure StallGuard and CoolStep maximum velocity and
+# SpreadCycle-FullStepping (High velocity) mode threshold.
+def TMCVhighHelper(config, mcu_tmc):
+ fields = mcu_tmc.get_fields()
+ velocity = config.getfloat('high_velocity_threshold', None, minval=0.)
+ thigh = 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")
+ thigh = TMCtstepHelper(step_dist, mres,
+ mcu_tmc.get_tmc_frequency(), velocity)
+ fields.set_field("thigh", thigh)