summaryrefslogtreecommitdiff
path: root/decoders/i2c
diff options
context:
space:
mode:
Diffstat (limited to 'decoders/i2c')
-rw-r--r--decoders/i2c/i2c.py8
1 files changed, 7 insertions, 1 deletions
diff --git a/decoders/i2c/i2c.py b/decoders/i2c/i2c.py
index 0e79497..53321eb 100644
--- a/decoders/i2c/i2c.py
+++ b/decoders/i2c/i2c.py
@@ -88,6 +88,7 @@ class Decoder(srd.Decoder):
self.state = 'FIND START'
self.oldscl = None
self.oldsda = None
+ self.oldpins = None
def start(self, metadata):
self.out_proto = self.add(srd.OUTPUT_PROTO, 'i2c')
@@ -198,7 +199,12 @@ class Decoder(srd.Decoder):
super(Decoder, self).put(self.startsample, self.samplenum, output_id, data)
def decode(self, ss, es, data):
- for (self.samplenum, (scl, sda)) in data:
+ for (self.samplenum, pins) in data:
+
+ # Ignore identical samples early on (for performance reasons).
+ if self.oldpins == pins:
+ continue
+ self.oldpins, (scl, sda) = pins, pins
# First sample: Save SCL/SDA value.
if self.oldscl == None: