虽然按文档,反馈数据应该上升沿采样,但是实际上发现下降沿采样更准确.

xy2-100-E/pd.py

@@ -288,8 +288,7 @@ class Decoder(srd.Decoder):
             clk, sync, data, data2, data3, data4, stat = self.wait({0: 'e'})
 
             if clk == 1:# rising edge                
-                bit_value3 = data3
+
-                bit_value4 = data4
                 stat_value = stat
                 bit_es = self.samplenum
                 if bit_ss is not None:
@@ -298,6 +297,8 @@ class Decoder(srd.Decoder):
             else:# falling edge
                 bit_value = data
                 bit_value2 = data2
+                bit_value3 = data3
+                bit_value4 = data4
                 sync_value = sync
 
                 bit2_es = self.samplenum