diff --git a/klippy/chipmisc.py b/klippy/chipmisc.py
index 26931076..2bdf3b58 100644
--- a/klippy/chipmisc.py
+++ b/klippy/chipmisc.py
@@ -208,7 +208,6 @@ class ReplicapeDACEnable:
         self.mcu = replicape.host_mcu
         self.value = replicape.stepper_dacs[channel]
         self.pwm = pca9685_pwm(replicape, channel, pin_params)
-        self.last = 0
     def get_mcu(self):
         return self.mcu
     def setup_max_duration(self, max_duration):
@@ -218,9 +217,6 @@ class ReplicapeDACEnable:
             self.pwm.set_pwm(print_time, self.value)
         else:
             self.pwm.set_pwm(print_time, 0.)
-        self.last = value
-    def get_last_setting(self):
-        return self.last
 
 ReplicapeStepConfig = {
     'disable': None,
diff --git a/klippy/mcu.py b/klippy/mcu.py
index 6a080429..db330759 100644
--- a/klippy/mcu.py
+++ b/klippy/mcu.py
@@ -233,7 +233,6 @@ class MCU_digital_out:
         self._invert = self._shutdown_value = pin_params['invert']
         self._max_duration = 2.
         self._last_clock = 0
-        self._last_value = None
         self._cmd_queue = mcu.alloc_command_queue()
         self._set_cmd = None
     def get_mcu(self):
@@ -264,9 +263,6 @@ class MCU_digital_out:
         self._mcu.send(msg, minclock=self._last_clock, reqclock=clock
                       , cq=self._cmd_queue)
         self._last_clock = clock
-        self._last_value = value
-    def get_last_setting(self):
-        return self._last_value
     def set_pwm(self, print_time, value):
         self.set_digital(print_time, value >= 0.5)
 
diff --git a/klippy/stepper.py b/klippy/stepper.py
index c532d21a..28fdb226 100644
--- a/klippy/stepper.py
+++ b/klippy/stepper.py
@@ -45,7 +45,7 @@ class PrinterStepper:
         self.mcu_stepper.set_position(pos)
     def motor_enable(self, print_time, enable=0):
         if (self.mcu_enable is not None
-            and self.mcu_enable.get_last_setting() != enable):
+            and self.need_motor_enable != (not enable)):
             self.mcu_enable.set_digital(print_time, enable)
         self.need_motor_enable = not enable