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-rw-r--r--klippy/mcu.py11
1 files changed, 4 insertions, 7 deletions
diff --git a/klippy/mcu.py b/klippy/mcu.py
index 077d6ff8..1fc40302 100644
--- a/klippy/mcu.py
+++ b/klippy/mcu.py
@@ -108,14 +108,11 @@ class MCU_stepper:
if ret:
raise error("Internal error in stepcompress")
def step(self, mcu_time, sdir):
- clock = mcu_time * self._mcu_freq
- ret = self._ffi_lib.stepcompress_push(self._stepqueue, clock, sdir)
- if ret:
+ count = self._ffi_lib.stepcompress_push(
+ self._stepqueue, mcu_time * self._mcu_freq, sdir)
+ if count == STEPCOMPRESS_ERROR_RET:
raise error("Internal error in stepcompress")
- if sdir:
- self._commanded_pos += 1
- else:
- self._commanded_pos -= 1
+ self._commanded_pos += count
def step_const(self, mcu_time, start_pos, dist, start_v, accel):
inv_step_dist = self._inv_step_dist
step_offset = self._commanded_pos - start_pos * inv_step_dist