diff options
| -rw-r--r-- | decoders/uart/pd.py | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/decoders/uart/pd.py b/decoders/uart/pd.py index d42a5d4..db1065d 100644 --- a/decoders/uart/pd.py +++ b/decoders/uart/pd.py @@ -138,6 +138,7 @@ class Decoder(srd.Decoder): ('tx', 'TX dump'), ('rxtx', 'RX/TX dump'), ) + idle_state = ['WAIT FOR START BIT', 'WAIT FOR START BIT'] def putx(self, rxtx, data): s, halfbit = self.startsample[rxtx], self.bit_width / 2.0 @@ -171,7 +172,7 @@ class Decoder(srd.Decoder): self.startsample = [-1, -1] self.state = ['WAIT FOR START BIT', 'WAIT FOR START BIT'] self.oldbit = [1, 1] - self.oldpins = [1, 1] + self.oldpins = [-1, -1] self.databits = [[], []] def start(self): @@ -338,10 +339,12 @@ class Decoder(srd.Decoder): raise SamplerateError('Cannot decode without samplerate.') for (self.samplenum, pins) in data: - # Note: Ignoring identical samples here for performance reasons - # is not possible for this PD, at least not in the current state. - # if self.oldpins == pins: - # continue + # We want to skip identical samples for performance reasons but, + # for now, we can only do that when we are in the idle state + # (meaning both channels are waiting for the start bit). + if self.state == self.idle_state and self.oldpins == pins: + continue + self.oldpins, (rx, tx) = pins, pins if self.options['invert_rx'] == 'yes': |