Cute-WR-DP-demo.md

 # Run the Cute-WR-DP Demo code
 
 This is to demonstrate the Cute-WR-DP that works in chain mode which
-contains a WRS and three Cute-WR-DPv2 modes.
+contains a WRS and three CUTE-WR-DPv2 modes.
 
 The WR switch acts as the Grandmaster(Layer 1) in this small network,
 and three CUTEWR-DPV2 boards are connected one by one. They are in Layer
@@ -12,14 +12,14 @@ Use the command below to change the parameters of each port.
 
   - The SFP\_PN is AXGE-1254-0531 or AXGE-3454-0531 if you use the SFPs
     produced by AXCEN. 
-  - The port is 0 or 1.
   - The units of dtx\_value and drx\_value are picosecond.
   - alpha value is depended on your fiber.
+  - The port is 0 or 1. If without port, default value will be 0.
 
 <!-- end list -->
 
     sfp erase
-    sfp add SFP_PN port dtx_value drx_value alpha_value
+    sfp add SFP_PN dtx_value drx_value alpha_value (port)
 
 Use the command below to set the IP of each port.
 
@@ -32,10 +32,10 @@ Use the command below to set the IP of each port.
 
 Use the command below to start or stop the PTP of each port.
 
-    ptp start (start both two ports)
-    ptp start 0/1 (start the selected port)
-    ptp stop (stop both two ports)
-    ptp stop 0/1 (stop the selected port)
+    ptp start or ptp start 0(start port 0)
+    ptp start 1 (start port 1)
+    ptp stop or ptp stop 0(stop port 0)
+    ptp stop 1 (stop port 1)
 
 Use the command "gui" to get the PTP status of each port.  
 The results are shown as