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doxygen/started_host_demo.md

@@ -4,10 +4,44 @@
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
 **Table of Contents**
 
-- [LPCXpresso](#lpcxpresso)
-- [Keil](#keil)
-- [IAR](#iar)
-- [Configure demo](#configure-demo)
+- [Human Interface Device (HID)](#human-interface-device-hid)
+	- [Keyboard](#keyboard)
+	- [Mouse](#mouse)
+- [Mass Storage Class Device (MSC)](#mass-storage-class-device-msc)
+- [Communication Class Device (CDC)](#communication-class-device-cdc)
+	- [Serial](#serial)
 
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+device application code is store at *demos/device/src* containing
+
+File  | Description
+----- | -------------
+main.c | Initialization (board, stack) and a RTOS task scheduler call or just simple a indefinite loop for non OS to invoke class-specific tasks.
+tusb_config.h | tinyusb stack configuration.
+app_os_prio.h | RTOS task priority definitions
+Class-specific | Application files for supported classes.
+
+The demo will start with the greeting of enabled classes and chosen RTOS then start to blink an LED at 1 Hz.
+
+## Prerequisites ##
+
+In order to run application demo, you would need
+
+- A [supported development board](../../boards/readme.md) with at least a button for mouse, keyboard demo.
+- A supported toolchain: LPCXpresso, Keil, IAR.
+- A [ANSI escape](http://en.wikipedia.org/wiki/ANSI_escape_code) supported terminal such as [Tera Term](http://en.sourceforge.jp/projects/ttssh2/) to demonstrate properly.
+
+## Human Interface Device (HID)
+
+### Keyboard
+
+
+
+### Mouse
+
+## Mass Storage Class Device (MSC)
+
+## Communication Class Device (CDC)
+
+### Serial