X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fi2c%2Fpd.py;h=f452bcb00e53cc312f360a02fefc8af4be09ae89;hb=4c180223a8ae12feb7bc3601e07e848fb9cdb493;hp=b633397f563f6ae5b34327d1738b5c15fe65a026;hpb=96434ac79e467615e6145e8a39de7007c0923934;p=libsigrokdecode.git

diff --git a/decoders/i2c/pd.py b/decoders/i2c/pd.py
index b633397..f452bcb 100644
--- a/decoders/i2c/pd.py
+++ b/decoders/i2c/pd.py
@@ -61,9 +61,6 @@ proto = {
     'DATA WRITE':      [9, 'Data write',    'DW'],
 }
 
-class SamplerateError(Exception):
-    pass
-
 class Decoder(srd.Decoder):
     api_version = 3
     id = 'i2c'
@@ -73,6 +70,7 @@ class Decoder(srd.Decoder):
     license = 'gplv2+'
     inputs = ['logic']
     outputs = ['i2c']
+    tags = ['Logic', 'Bus']
     channels = (
         {'id': 'scl', 'name': 'SCL', 'desc': 'Serial clock line'},
         {'id': 'sda', 'name': 'SDA', 'desc': 'Serial data line'},
@@ -238,9 +236,10 @@ class Decoder(srd.Decoder):
 
     def handle_stop(self, pins):
         # Meta bitrate
-        elapsed = 1 / float(self.samplerate) * (self.samplenum - self.pdu_start + 1)
-        bitrate = int(1 / elapsed * self.pdu_bits)
-        self.put(self.ss_byte, self.samplenum, self.out_bitrate, bitrate)
+        if self.samplerate:
+            elapsed = 1 / float(self.samplerate) * (self.samplenum - self.pdu_start + 1)
+            bitrate = int(1 / elapsed * self.pdu_bits)
+            self.put(self.ss_byte, self.samplenum, self.out_bitrate, bitrate)
 
         cmd = 'STOP'
         self.ss, self.es = self.samplenum, self.samplenum
@@ -252,9 +251,6 @@ class Decoder(srd.Decoder):
         self.bits = []
 
     def decode(self):
-        if not self.samplerate:
-            raise SamplerateError('Cannot decode without samplerate.')
-
         while True:
             # State machine.
             if self.state == 'FIND START':