return (ones % 2) == 1
elif parity_type == 'even':
return (ones % 2) == 0
- else:
- raise Exception('Invalid parity type: %d' % parity_type)
+
+class SamplerateError(Exception):
+ pass
class Decoder(srd.Decoder):
api_version = 2
self.databyte[rxtx] >>= 1
self.databyte[rxtx] |= \
(signal << (self.options['num_data_bits'] - 1))
- elif self.options['bit_order'] == 'msb-first':
+ else:
self.databyte[rxtx] <<= 1
self.databyte[rxtx] |= (signal << 0)
- else:
- raise Exception('Invalid bit order value: %s',
- self.options['bit_order'])
self.putg([rxtx + 12, ['%d' % signal]])
self.putx(rxtx, [rxtx, [oct(b)[2:].zfill(3)]])
elif f == 'bin':
self.putx(rxtx, [rxtx, [bin(b)[2:].zfill(8)]])
- else:
- raise Exception('Invalid data format option: %s' % f)
self.putbin(rxtx, (rxtx, bytes([b])))
self.putbin(rxtx, (2, bytes([b])))
self.putg([rxtx + 4, ['Stop bit', 'Stop', 'T']])
def decode(self, ss, es, data):
- if self.samplerate is None:
- raise Exception("Cannot decode without samplerate.")
+ if not self.samplerate:
+ raise SamplerateError('Cannot decode without samplerate.')
for (self.samplenum, pins) in data:
# Note: Ignoring identical samples here for performance reasons
self.get_parity_bit(rxtx, signal)
elif self.state[rxtx] == 'GET STOP BITS':
self.get_stop_bits(rxtx, signal)
- else:
- raise Exception('Invalid state: %s' % self.state[rxtx])
# Save current RX/TX values for the next round.
self.oldbit[rxtx] = signal