improve parse()

app/src/gen3plus/infos_g3p.py

@@ -96,7 +96,8 @@ class InfosG3P(Infos):
             mtype = (idx >> 24) & 0xff
             if ftype != rcv_ftype or mtype != msg_type:
                 continue
-            if isinstance(row, dict):
+            if not isinstance(row, dict):
+                continue
             info_id = row['reg']
             fmt = row['fmt']
             res = struct.unpack_from(fmt, buf, addr)