- bitcount = 0
-
- if self.sym == 'SE0':
- if bitcount == 1:
- # End-Of-Packet (EOP)
- # self.putx([0, [packet_decode(self.packet), self.packet]])
- if self.packet != '': # FIXME?
- self.putx([0, ['PACKET: %s' % self.packet]])
- self.putp(['PACKET', self.packet])
+ self.consecutive_ones = 0
+
+ def get_eop(self, sym):
+ # EOP: SE0 for >= 1 bittime (usually 2 bittimes), then J.
+ self.putpb(['SYM', sym])
+ self.putb(sym_annotation[sym])
+ self.set_new_target_samplenum()
+ self.oldsym = sym
+ if sym == 'SE0':
+ pass
+ elif sym == 'J':
+ # Got an EOP.
+ self.putpm(['EOP', None])
+ self.putm([5, ['EOP', 'E']])
+ self.state = 'IDLE'
+ self.bitwidth = float(self.samplerate) / float(self.bitrate)
+ else:
+ self.putpm(['ERR', None])
+ self.putm([8, ['EOP Error', 'EErr', 'E']])
+ self.state = 'IDLE'
+
+ def get_bit(self, sym):
+ if sym == 'SE0':
+ # Start of an EOP. Change state, save edge
+ self.state = 'GET EOP'
+ self.ss_block = self.samplenum
+ else:
+ b = '0' if self.oldsym != sym else '1'
+ self.handle_bit(b)
+ self.putpb(['SYM', sym])
+ self.putb(sym_annotation[sym])
+ if self.oldsym != sym:
+ edgesym = symbols[self.options['signalling']][tuple(self.edgepins)]
+ if edgesym not in ('SE0', 'SE1'):
+ if edgesym == sym:
+ self.bitwidth = self.bitwidth - (0.001 * self.bitwidth)
+ self.samplepos = self.samplepos - (0.01 * self.bitwidth)