BugID:17706753: gatewayapp readme switches to normative format.
-# uData sample
+## profile/gatewayapp
-It is a sample for uData to manage sensors.
+### Content
+- gatewayapp
+ - [Content](#content)
+ - [Overview](#overview)
+ - [Requirements](#requirements)
+ - [Build](#build)
+ - [Run](#run)
+### Overview
+
+* Industry protocol gateway based on stm32f429zi-nucleo evaluation board.
+
+### Requirements
+
+Depends on device profile:
+* UART scanner device
+* Modbus sensors
+* CAN bus sensors
+
+### Build
+
+```sh
+aos make gatewayapp@stm32f429zi-nucleo dtc=1 GW_LINKEDGE_WS=1 SAL=1 PT_SCANNER=1
+```
+* compile vars
+** Network module
+*** default: Ethernet
+*** sal=1: AT WIFI
+*** sal=1 module=gprs.sim800: AT GPRS
+
+** Device model
+*** PT_SCANNER=1: Scanner
+*** PT_SENSOR=1: MODBUS/CAN sensors
+
+** Cloud link method
+*** dtc=1: directly cloud link
+*** dtc=1 GW_LINKEDGE_WS=1: link via linkedge server
+
+### Run
+
+Poweron then watch the logs and watch events/properties in the IoT platform.
