spiflash: Handle CS# transitions, allow variable-length transfers

[libsigrokdecode.git] / decoders / stepper_motor / pd.py

diff --git a/decoders/stepper_motor/pd.py b/decoders/stepper_motor/pd.py
index b3bb5bc73cabf14f1a12c9b7e22d71fa9b36a700..7664fc4290bc1836343ff633dc924af070acc37d 100644 (file)
--- a/decoders/stepper_motor/pd.py
+++ b/decoders/stepper_motor/pd.py
@@ -28,7 +28,7 @@ class Decoder(srd.Decoder):
     id = 'stepper_motor'
     name = 'Stepper motor'
     longname = 'Stepper motor position / speed'
-    desc = 'Calculate absolute position and movement speed from step/dir signals.'
+    desc = 'Absolute position and movement speed from step/dir.'
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['stepper_motor']
@@ -50,9 +50,9 @@ class Decoder(srd.Decoder):
         ('position', 'Position', (1,)),
     )
 
-    def __init__(self, **kwargs):
+    def __init__(self):
         self.oldstep = None
-        self.prev_step_ss = None
+        self.ss_prev_step = None
         self.pos = 0
         self.prev_speed = None
         self.prev_pos = None
@@ -70,18 +70,18 @@ class Decoder(srd.Decoder):
             self.unit = 'mm'
 
     def step(self, ss, direction):
-        if self.prev_step_ss is not None:
-            delta = ss - self.prev_step_ss
+        if self.ss_prev_step is not None:
+            delta = ss - self.ss_prev_step
             speed = self.samplerate / delta / self.scale
             speed_txt = self.format % speed
             pos_txt = self.format % (self.pos / self.scale)
-            self.put(self.prev_step_ss, ss, self.out_ann,
+            self.put(self.ss_prev_step, ss, self.out_ann,
                 [0, [speed_txt + ' ' + self.unit + '/s', speed_txt]])
-            self.put(self.prev_step_ss, ss, self.out_ann,
+            self.put(self.ss_prev_step, ss, self.out_ann,
                 [1, [pos_txt + ' ' + self.unit, pos_txt]])
 
         self.pos += (1 if direction else -1)
-        self.prev_step_ss = ss
+        self.ss_prev_step = ss
 
     def metadata(self, key, value):
         if key == srd.SRD_CONF_SAMPLERATE: