/**********************************************************************
* $Id$		abstract.txt 			
*//**
* @file		abstract.txt 
* @brief	Example description file
* @version	2.0
* @date		
* @author	NXP MCU SW Application Team/Micromint USA Support
*
* Copyright(C) 2010, NXP Semiconductor
* All rights reserved.
*
***********************************************************************
* Software that is described herein is for illustrative purposes only
* which provides customers with programming information regarding the
* products. This software is supplied "AS IS" without any warranties.
* NXP Semiconductors assumes no responsibility or liability for the
* use of the software, conveys no license or title under any patent,
* copyright, or mask work right to the product. NXP Semiconductors
* reserves the right to make changes in the software without
* notification. NXP Semiconductors also make no representation or
* warranty that such application will be suitable for the specified
* use without further testing or modification.
**********************************************************************/
  
@Example description:
Purpose:
	This example describes how to generate PWM signal on 3 Channels in both 
	edge mode and single mode.
Process:
	This program illustrates the PWM signal on 3 Channels in both edge mode
	and single mode.
	Peripheral clock for PWM: PWM_PCLK = CCLK / 4 = 100MHz/4 = 25MHz and 
        there is no prescale for PWM. The PWM timer/counter clock is at 25MHz. 
        The base rate is set to 10000.
	The base PWM frequency is at 25MHz/10000 = 2.5 KHz.
	Each PWM channel will be configured as following:
		- Channel 2: Double Edge (P3.25)
		- Channel 4: Double Edge (P2.3)
		- Channel 5: Single Edge (P2.4)
	The Match register values are as follows:
		- MR0 = 10000 (PWM rate)
		- MR1 = 10000, MR2 = 5000 (PWM2 output)
		- MR3 = 10000, MR4 = 3300 (PWM4 output)
		- MR5 = 7500 (PWM5 output)
	PWM Duty on each PWM channel:
		- Channel 2: Set by match 1, Reset by match 2 givung a 50% duty 
                             cycle.
		- Channel 4: Set by match 3, Reset by match 4 giving a 33% duty 
                             cycle.
		- Channel 5: Set by match 0, Reset by match 5 giving a 75% duty
                             cycle.
	Using Oscilloscope to observe the PWM signals	

@Directory contents:
	\EWARM: includes EWARM (IAR) project and configuration files
	\Keil:	includes RVMDK (Keil)project and configuration files
	 
	lpc17xx_libcfg.h: Library configuration file - include needed driver 
        library for this example 
	makefile: Example's makefile (to build with GNU toolchain)
	pwm_dual_edge.c: Main program

@How to run:
	- Step 1: Build example.
	- Step 2: Burn hex file into board (if run on ROM mode)
	- Step 3: Configure hardware as above instruction 
	- Step 4: Run example, Use oscilloscope to monitor the wave form
		

		
@Tip:
	- Open \EWARM\*.eww project file to run example on IAR
	- Open \RVMDK\*.uvproj project file to run example on Keil