diff options
| -rw-r--r-- | decoders/stepper_motor/pd.py | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/decoders/stepper_motor/pd.py b/decoders/stepper_motor/pd.py index 9ddc645..0546395 100644 --- a/decoders/stepper_motor/pd.py +++ b/decoders/stepper_motor/pd.py @@ -19,9 +19,6 @@ import sigrokdecode as srd -class SamplerateError(Exception): - pass - class Decoder(srd.Decoder): api_version = 3 id = 'stepper_motor' @@ -53,6 +50,7 @@ class Decoder(srd.Decoder): self.reset() def reset(self): + self.samplerate = None self.oldstep = None self.ss_prev_step = None self.pos = 0 @@ -73,13 +71,14 @@ class Decoder(srd.Decoder): def step(self, ss, direction): 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 + if self.samplerate: + delta = ss - self.ss_prev_step + speed = self.samplerate / delta / self.scale + speed_txt = self.format % speed + self.put(self.ss_prev_step, ss, self.out_ann, + [0, [speed_txt + ' ' + self.unit + '/s', speed_txt]]) pos_txt = self.format % (self.pos / self.scale) self.put(self.ss_prev_step, ss, self.out_ann, - [0, [speed_txt + ' ' + self.unit + '/s', speed_txt]]) - self.put(self.ss_prev_step, ss, self.out_ann, [1, [pos_txt + ' ' + self.unit, pos_txt]]) self.pos += (1 if direction else -1) @@ -90,8 +89,6 @@ class Decoder(srd.Decoder): self.samplerate = value def decode(self): - if not self.samplerate: - raise SamplerateError('Cannot decode without samplerate.') while True: step, direction = self.wait({0: 'r'}) self.step(self.samplenum, direction) |