diff options
Diffstat (limited to 'decoders/pwm')
| -rw-r--r-- | decoders/pwm/pd.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/decoders/pwm/pd.py b/decoders/pwm/pd.py index 2301523..9770445 100644 --- a/decoders/pwm/pd.py +++ b/decoders/pwm/pd.py @@ -20,6 +20,9 @@ import sigrokdecode as srd +class SamplerateError(Exception): + pass + class Decoder(srd.Decoder): api_version = 3 id = 'pwm' @@ -52,6 +55,7 @@ class Decoder(srd.Decoder): self.reset() def reset(self): + self.samplerate = None self.ss_block = self.es_block = None def metadata(self, key, value): @@ -89,6 +93,9 @@ class Decoder(srd.Decoder): self.put(self.ss_block, self.es_block, self.out_binary, data) def decode(self): + if not self.samplerate: + raise SamplerateError('Cannot decode without samplerate.') + num_cycles = 0 average = 0 |