/********************************************************************** * $Id$ 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 configure System Tick timer to generate interrupt each 10ms Process: In this example, System Tick timer is clocked internal by the CPU clock In this case, CPU clock = cclk = 100MHz System Tick timer configure: - time interval = 10ms - Enable System Tick interrupt After each 10ms, System Tick will generate interrupt, interrupt service routine 'SysTick_Handler( )' will be invoke and toggle P0.4 pin. Use oscilloscope to observe signal on P0.4 and measure time between falling and rising edge, it would be: 10ms. @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) 10ms_base.c: Main program Step to run: - Step 1: Build example. - Step 2: Burn hex file into board (if run on ROM mode) - Step 3: Run example, observe System Tick operation via J2 pin 3 (P0.4) signal (Pls see "LPC17xx Example Description" document - chapter "Examples > SysTick > 10ms_base" for more details) @Tip: - Open \EWARM\*.eww project file to run example on IAR - Open \RVMDK\*.uvproj project file to run example on Keil