diff --git a/tool/plugin/i2c_m7.sh b/tool/plugin/i2c_m7.sh
index a0b269e..e12abbd 100644
--- a/tool/plugin/i2c_m7.sh
+++ b/tool/plugin/i2c_m7.sh
@@ -6,4 +6,8 @@ slave=$3
 data=$4
 rc=$5
 
-i2ctransfer - y $i2c_bus w$wc@$slave $data r$5
\ No newline at end of file
+if [ $rc -eq 0 ];then
+    i2ctransfer - y $i2c_bus w$wc@$slave $data
+else
+    i2ctransfer - y $i2c_bus w$wc@$slave $data r$5
+fi
\ No newline at end of file
diff --git a/tool/plugin/nicsensor.sh b/tool/plugin/nicsensor.sh
index 4a66b1a..995a1e0 100644
--- a/tool/plugin/nicsensor.sh
+++ b/tool/plugin/nicsensor.sh
@@ -10,10 +10,11 @@ chip_slave=$3
 nic_type=""
 slot_id=""
 
-server_script="platform_${server_type}.sh"
-sensor_script="plugin_${sensor_type}.sh"
-i2c_script="i2c_${server_platform}.sh"
-fmt_print="format_print.sh"
+path=`pwd`
+server_script="${path}/platform_${server_type}.sh"
+sensor_script="${path}/plugin_${sensor_type}.sh"
+i2c_script="${path}/i2c_${server_platform}.sh"
+fmt_print="${path}/format_print.sh"
 
 conf_pre_check(){
 
@@ -45,20 +46,20 @@ conf_pre_check(){
 
 parse_slot_name(){
     # Get nic type and slot id from slot name
-    case "{$slot_name}" in
+    case "${slot_name}" in
         ocp*)
             nic_type="ocp"
             slot_id=`echo $slot_name | cut -c 4`
-        ;;
+            ;;
         pcie*)
             nic_type="pcie"
             slot_id=`echo $slot_name | cut -c 5-`
-        ;;
+            ;;
         *)
             $fmt_print "log" "Warning" "Undetermined nic type, default set to pcie"
             nic_type="pcie"
             slot_id=$slot_name
-        ;;
+            ;;
     esac
 }
 
@@ -72,7 +73,7 @@ connect_i2c(){
 }
 
 start_sensor_reading(){
-
+    $fmt_print "log" "Info" "start sensor reading"
 }
 # ---------------------------------------------------------
 #  Start Execute Script
diff --git a/tool/plugin/platform_5280m7.sh b/tool/plugin/platform_5280m7.sh
index 40507f7..0119c90 100644
--- a/tool/plugin/platform_5280m7.sh
+++ b/tool/plugin/platform_5280m7.sh
@@ -4,20 +4,25 @@ action=$1
 nic_type=$2
 slot_id=$3
 
-i2c_script="i2c_m7.sh"
-fmt_print="format_print.sh"
+path=`pwd`
+i2c_script="${path}/i2c_m7.sh"
+fmt_print="${path}/format_print.sh"
 
 pca9548_slave=""
 pca9641_slave=""
 i2c_bus=""
 pca9548_channel=""
 
+is_have_pca9641=0
+
 set_i2c_config(){
     # set pca9641 address && I2C BUS
-    if [ $nic_type == "ocp" ];then
+    if [ "${nic_type}" = "ocp" ];then
+        is_have_pca9641=0
         pca9548_slave="0x70"
         i2c_bus=3
     else
+        is_have_pca9641=1
         if [ $slot_id -le 2 ];then
             pca9641_slave="0x41"
             pca9548_slave="0x72"
@@ -30,7 +35,7 @@ set_i2c_config(){
     fi
 
     # set pca9548 switch channel
-    if [ $nic_type == "ocp" ];then
+    if [ "${nic_type}" = "ocp" ];then
         if [ $slot_id -eq 0 ];then
             pca9548_channel="0x01"
         elif [ $slot_id -eq 1 ];then
@@ -59,9 +64,37 @@ set_i2c_config(){
     fi
 }
 
+record_i2c_status(){
+    $fmt_print "log" "Info" "[platform_5280m7] Start record i2c configuration"
+    $fmt_print "log" "Info" "Nic Type: $nic_type"
+    $fmt_print "log" "Info" "Nic slot: $slot_id"
+    $fmt_print "log" "Info" "i2c bus: $i2c_bus"
+    $fmt_print "log" "Info" "is have pca9641: $is_have_pca9641"
+    $fmt_print "log" "Info" "pca9641 slave: $is_have_pca9641"
+    $fmt_print "log" "Info" "pca9548 slave: $pca9548_slave"
+    $fmt_print "log" "Info" "pca9548 channel: $pca9548_channel"
+}
+
+get_pca9641_control(){
+    $fmt_print "log" "Info" "[platform_5280m7] Start Get pca9641 control"
+}
+
+select_pca9548_channel(){
+    $fmt_print "log" "Info" "[platform_5280m7] Start Switch PCA9548"
+    # $i2c_script "$i2c_bus" 1 "$pca9548_slave" "$pca9548_channel" 0
+}
+
 build_i2c_connect(){
     $fmt_print "log" "Info" "[platform_5280m7] Start build i2c connect"
-    
+    set_i2c_config
+    record_i2c_status
+
+    if [ $is_have_pca9641 -eq 1 ];then
+        get_pca9641_control
+    fi
+
+    select_pca9548_channel
+    echo "$i2c_bus"
 }
 
 detect_on_server(){