diff --git a/Decoder.py b/Decoder.py
index d63f6c8..4f05875 100644
--- a/Decoder.py
+++ b/Decoder.py
@@ -76,7 +76,7 @@ class Decoder_main(threading.Thread):
         :return:
         '''
         self.decoder_class = decoder_class
-        if decoder_class == 'ssvep' or decoder_class == 'pvs':
+        if self.decoder_class == 'ssvep' or self.decoder_class == 'pvs':
             self.n_chan = 8
             # self.thread_data_server.interval_inited = False
             DW_cost_method, self.DW_cost_tv = ast.literal_eval(IniRead('system', 'SSVEP_ThresholdValue'))
diff --git a/README.md b/README.md
index 4e80830..b2ccc05 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,8 @@ source activate 3in1Py310
 python runDecoder.py
 python datamock.py
 python ZeroMQClient_mock.py
-python system_test.py
+python filter_test.py
+
 
 
 # 遗留问题
diff --git a/Zmq/dataBuffer.py b/Zmq/dataBuffer.py
index 233b72f..4d017f6 100644
--- a/Zmq/dataBuffer.py
+++ b/Zmq/dataBuffer.py
@@ -21,7 +21,7 @@ class ParadigmRingBuffer:
     def appendBuffer(self, data):
         if self.nUpdate == self.n_points:
         #     raise Exception("Buffer is full")
-            algo_log("Buffer is full", record_once=True)
+            algo_log("ParadigmRingBuffer is full", record_once=True)
 
         n = data.shape[1]