diff options
Diffstat (limited to 'decoders/tlc5620')
| -rw-r--r-- | decoders/tlc5620/pd.py | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/decoders/tlc5620/pd.py b/decoders/tlc5620/pd.py index 886d5c9..0a7b228 100644 --- a/decoders/tlc5620/pd.py +++ b/decoders/tlc5620/pd.py @@ -73,6 +73,16 @@ class Decoder(srd.Decoder): self.out_ann = self.register(srd.OUTPUT_ANN) def handle_11bits(self): + # Only look at the last 11 bits, the rest is ignored by the TLC5620. + if len(self.bits) > 11: + self.bits = self.bits[-11:] + + self.ss_dac = self.bits[0][1] + self.es_dac = self.ss_gain = self.bits[2][1] + self.es_gain = self.ss_value = self.bits[3][1] + self.clock_width = self.es_gain - self.ss_gain + self.es_value = self.bits[10][1] + self.clock_width # Guessed. + s = ''.join(str(i[0]) for i in self.bits[:2]) self.dac_select = s = dacs[int(s, 2)] self.put(self.ss_dac, self.es_dac, self.out_ann, @@ -96,7 +106,10 @@ class Decoder(srd.Decoder): self.put(self.bits[10][1], self.bits[10][1] + self.clock_width, self.out_ann, [5, [str(self.bits[10][0])]]) + self.bits = [] + def handle_falling_edge_load(self): + self.handle_11bits() s, v, g = self.dac_select, self.dac_value, self.gain self.put(self.samplenum, self.samplenum, self.out_ann, [3, ['Falling edge on LOAD', 'LOAD fall', 'F']]) @@ -111,20 +124,6 @@ class Decoder(srd.Decoder): def handle_new_dac_bit(self): self.bits.append([self.datapin, self.samplenum]) - # Wait until we have read 11 bits, then parse them. - l, s = len(self.bits), self.samplenum - if l == 1: - self.ss_dac = s - elif l == 3: - self.es_dac = self.ss_gain = s - elif l == 4: - self.es_gain = self.ss_value = s - self.clock_width = self.es_gain - self.ss_gain - elif l == 11: - self.es_value = s + self.clock_width # Guessed. - self.handle_11bits() - self.bits = [] - def decode(self, ss, es, data): for (self.samplenum, pins) in data: |