diff options
Diffstat (limited to 'decoders/usb_signalling')
| -rw-r--r-- | decoders/usb_signalling/pd.py | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/decoders/usb_signalling/pd.py b/decoders/usb_signalling/pd.py index a21fe8d..59db0d4 100644 --- a/decoders/usb_signalling/pd.py +++ b/decoders/usb_signalling/pd.py @@ -73,6 +73,9 @@ sym_idx = { 'SE1': 3, } +class SamplerateError(Exception): + pass + class Decoder(srd.Decoder): api_version = 2 id = 'usb_signalling' @@ -217,8 +220,8 @@ class Decoder(srd.Decoder): self.oldsym = sym 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: # State machine. if self.state == 'IDLE': |