import sigrokdecode as srd
+(PIN_DATA, PIN_RESET) = range(2)
+(ROW_EDGE, ROW_WORD, ROW_RESET) = range(3)
+
class Decoder(srd.Decoder):
api_version = 3
id = 'counter'
('word_reset', 'Word reset'),
)
annotation_rows = (
- ('edge_counts', 'Edges', (0,)),
- ('word_counts', 'Words', (1,)),
- ('word_resets', 'Word resets', (2,)),
+ ('edge_counts', 'Edges', (ROW_EDGE,)),
+ ('word_counts', 'Words', (ROW_WORD,)),
+ ('word_resets', 'Word resets', (ROW_RESET,)),
)
options = (
{'id': 'data_edge', 'desc': 'Edges to count (data)', 'default': 'any',
self.reset()
def reset(self):
- self.edge_count = 0
- self.word_count = 0
- self.have_reset = None
+ pass
def metadata(self, key, value):
if key == srd.SRD_CONF_SAMPLERATE:
def start(self):
self.out_ann = self.register(srd.OUTPUT_ANN)
- self.edge = self.options['data_edge']
- self.divider = self.options['divider']
- if self.divider < 0:
- self.divider = 0
- def putc(self, cls, annlist):
- self.put(self.samplenum, self.samplenum, self.out_ann, [cls, annlist])
+ def putc(self, cls, ss, annlist):
+ self.put(ss, self.samplenum, self.out_ann, [cls, annlist])
def decode(self):
opt_edge_map = {'rising': 'r', 'falling': 'f', 'any': 'e'}
- condition = [{0: opt_edge_map[self.edge]}]
+ data_edge = self.options['data_edge']
+ divider = self.options['divider']
+ if divider < 0:
+ divider = 0
+ reset_edge = self.options['reset_edge']
- if self.has_channel(1):
- self.have_reset = True
- condition.append({1: opt_edge_map[self.options['reset_edge']]})
+ condition = [{PIN_DATA: opt_edge_map[data_edge]}]
+ have_reset = self.has_channel(PIN_RESET)
+ if have_reset:
+ cond_reset = len(condition)
+ condition.append({PIN_RESET: opt_edge_map[reset_edge]})
+ edge_count = 0
+ word_count = 0
while True:
self.wait(condition)
- if self.have_reset and self.matched[1]:
- self.edge_count = 0
- self.word_count = 0
- self.putc(2, ['Word reset', 'Reset', 'Rst', 'R'])
+ now = self.samplenum
+
+ if have_reset and self.matched[cond_reset]:
+ edge_count = 0
+ word_count = 0
+ self.putc(ROW_RESET, now, ['Word reset', 'Reset', 'Rst', 'R'])
continue
- self.edge_count += 1
+ edge_count += 1
+ self.putc(ROW_EDGE, now, ["{:d}".format(edge_count)])
- self.putc(0, [str(self.edge_count)])
- if self.divider > 0 and (self.edge_count % self.divider) == 0:
- self.word_count += 1
- self.putc(1, [str(self.word_count)])
+ if divider and (edge_count % divider) == 0:
+ word_count += 1
+ self.putc(ROW_WORD, now, ["{:d}".format(word_count)])