/********************************************************************** * $Id$ 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 use Capture Timer function. Process: Timer 0 is used to take a snapshot of the timer value when an input signal on CAP0.0 (pin P1.26) transitions on J2 pin 17. Timer configuration: - Prescaler in microsecond value - prescaler value = 1000000us = 1s - Use channel, CAPn.0 - Enable capture both on rising and falling edge - Generate capture interrupt Whenever capture interrupt occurs, TIMER interrupt service routine will be invoke to get captured time and display it into serial display Changing connect P1.26 with GND and VCC whenever want to capture time. @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) timer_capture.c: Main program @How to run: Hardware configuration: Serial display configuration: (e.g: TeraTerm, Hyperterminal, Flash Magic...) – 115200bps – 8 data bit – No parity – 1 stop bit – No flow control Running mode: This example can run on RAM/ROM mode. (Please reference "LPC1000 Software Development Toolchain" - chapter 4 "Creating and working with LPC1000CMSIS project" for more information) Step to run: - Step 1: Build example. - Step 2: Burn hex file into board (if run on ROM mode) - Step 3: Connect COM1 on the Lincoln board to COM port on your computer - Step 4: Configure hardware and serial display as above instruction - Step 5: Run example and observe timer capture value on serial display Changing J2 pin 17 (P1.26) between GND and VCC to capture the time (Pls see "LPC17xx Example Description" document - chapter "Examples > TIMER > Capture" for more details) @Tip: - Open \EWARM\*.eww project file to run example on IAR - Open \RVMDK\*.uvproj project file to run example on Keil