X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fgraycode%2Fpd.py;h=ef5d51352fe25356da1e9c47faf9c0487a5c3f4c;hb=5dd2a4c0c2872be7dda3be9ea0ce087826754a82;hp=f500c8393bc77013ddc141e2d825be741b5fdfbf;hpb=c413347e757ede98757d0f5d629a73fb0736ed26;p=libsigrokdecode.git

diff --git a/decoders/graycode/pd.py b/decoders/graycode/pd.py
index f500c83..ef5d513 100644
--- a/decoders/graycode/pd.py
+++ b/decoders/graycode/pd.py
@@ -101,6 +101,9 @@ class Decoder(srd.Decoder):
     annotation_rows = tuple((u, v, (i,)) for i, (u, v) in enumerate(annotations))
 
     def __init__(self):
+        self.reset()
+
+    def reset(self):
         self.num_channels = 0
         self.samplerate = None
         self.last_n = deque()
@@ -172,7 +175,7 @@ class Decoder(srd.Decoder):
             if self.options['edges']:
                 self.turns.set(self.samplenum, self.count.get() // self.options['edges'])
 
-            if self.samplerate is not None:
+            if self.samplerate:
                 period = (curtime - prevtime) / self.samplerate
                 freq = abs(phasedelta_raw) / period