diff options
| -rw-r--r-- | decoders/pwm/pd.py | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/decoders/pwm/pd.py b/decoders/pwm/pd.py index 0b7be45..5822f32 100644 --- a/decoders/pwm/pd.py +++ b/decoders/pwm/pd.py @@ -93,10 +93,8 @@ class Decoder(srd.Decoder): def decode(self): - # Get the first rising edge. - pin, = self.wait({0: 'e'}) - if pin != self.startedge: - pin, = self.wait({0: 'e'}) + # Wait for an "active" edge (depends on config). + self.wait({0: 'f' if self.startedge == 0 else 'r'}) self.first_samplenum = self.samplenum self.start_samplenum = self.samplenum @@ -105,7 +103,7 @@ class Decoder(srd.Decoder): pin, = self.wait({0: 'e'}) if pin == self.startedge: - # Rising edge + # Active edge # We are on a full cycle we can calculate # the period, the duty cycle and its ratio. period = self.samplenum - self.start_samplenum @@ -135,5 +133,5 @@ class Decoder(srd.Decoder): self.put(self.first_samplenum, self.es_block, self.out_average, float(self.average / self.num_cycles)) else: - # Falling edge + # Non-active edge self.end_samplenum = self.ss_block = self.samplenum |