update doc

doxygen/getting_started.md

@@ -5,13 +5,11 @@
 **Table of Contents**
 
 - [Download](#download)
-- [Import and Build](#import-and-build)
-	- [Prerequisites](#prerequisites)
-- [Configure demo](#configure-demo)
+- [Add tinyusb to your project](#add-tinyusb-to-your-project)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
-## Download ##
+## Download
 
 tinyusb uses github as online repository https://github.com/hathach/tinyusb since it is the best place for open source project. 
 
@@ -21,22 +19,28 @@ After downloading/cloning, the code base is composed of
 
 Folder  | Description
 -----   | -------------
-*boards*  | Source files of supported boards
-*demos*   | Source & project files for demonstration application
-*mcu*     | Low level mcu core & peripheral drivers (e.g CMSIS )
-*tests*   | Unit tests for the stack
-*tinyusb* | All sources files for tinyusb stack itself.
-*vendor*  | Source files from 3rd party such as freeRTOS, fatfs etc ...
+boards  | Source files of supported boards
+demos   | Source & project files for demonstration application
+mcu     | Low level mcu core & peripheral drivers (e.g CMSIS )
+tests   | Unit tests for the stack
+tinyusb | All sources files for tinyusb stack itself.
+vendor  | Source files from 3rd party such as freeRTOS, fatfs etc ...
 
 *repo/demos* is the folder where all the application & project files are located. There are demos for both device and hosts. For each, there are different projects for each of supported RTOS. 
 
-## Prerequisites ##
+## Add tinyusb to your project
+
+It is relatively simple to incorporate tinyusb to your (existing) project
+
+1. Copy core folder /**tinyusb** to your project. Let's say it is *your_project/tinyusb*
+2. Add all the .c in the core folder to your project settings (uvproj, ewp, makefile)
+3. Add *your_project/tinysb* to your include path. Also make sure your current include path also contains the configuration file tusb_config.h. Or you could simply put the tusb_config.h into the tinyusb folder as well.
+4. Make sure all required macros such as TUSB_CFG_MCU are all defined properly in tusb_config.h.
 
-In order to build and run application demo, you would need
 
-- A [supported development board](../../boards/readme.md)
-- A supported toolchain: LPCXpresso, Keil, IAR.
 
 \subpage md_boards_readme
+
 \subpage md_doxygen_started_build_demo
+
 \subpage md_doxygen_started_run_demo