)
def __init__(self):
+ self.reset()
+
+ def reset(self):
self.samplerate = None
self.oldsym = 'J' # The "idle" state is J.
self.ss_block = None
raise SamplerateError('Cannot decode without samplerate.')
# Seed internal state from the very first sample.
- pins = self.wait({'skip': 1})
+ pins = self.wait()
sym = symbols[self.options['signalling']][pins]
self.handle_idle(sym)
elif self.state == 'GET EOP':
self.get_eop(sym)
elif self.state == 'WAIT IDLE':
- pins = self.wait({'skip': 1})
- if pins == (0, 0):
- continue
+ # Skip "all-low" input. Wait for high level on either DP or DM.
+ pins = self.wait()
+ while not pins[0] and not pins[1]:
+ pins = self.wait([{0: 'h'}, {1: 'h'}])
if self.samplenum - self.samplenum_lastedge > 1:
sym = symbols[self.options['signalling']][pins]
self.handle_idle(sym)