usb_signalling: handle symbol errors in EOP state

Only SE0 and J are valid symbols during EOP

diff --git a/decoders/usb_signalling/pd.py b/decoders/usb_signalling/pd.py
index c00786a4316d4287c3b83d847187c5e268d4cddd..774ed494f839105c1ea6b8068849bc92a0578f86 100644 (file)
--- a/decoders/usb_signalling/pd.py
+++ b/decoders/usb_signalling/pd.py
@@ -209,6 +209,10 @@ class Decoder(srd.Decoder):
             self.putm([5, ['EOP', 'E']])
             self.state = 'IDLE'
             self.bitwidth = float(self.samplerate) / float(self.bitrate)
             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':
 
     def get_bit(self, sym):
         if sym == 'SE0':