main.c

LPC2103的捕获程序

/****************************************Copyright (c)**************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File name:			main.c
** Last modified Date:  2004-09-16
** Last Version:		1.0
** Descriptions:		The main() function example template
**
**------------------------------------------------------------------------------------------------------
** Created by:			Chenmingji
** Created date:		2004-09-16
** Version:				1.0
** Descriptions:		The original version
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************/
#include "config.h"
# define led (1<<17)


	void delay(unsigned int dly)

		{	unsigned int i;
			for(;dly>0;dly--)
			{
			for(i=0;i<100;i++);
			}
		}
	
        int main (void)
{	volatile unsigned int j;
	PINSEL1=(1<<5);//p18连接到捕获CAP1.3
	IO0DIR=led;
	
	T1PR=999;
	T1CCR=1<<10;//设置下降沿捕获
	T1TC=0;
	T1TCR=0x01;
	
	while(1)
	{	j=T1CR3;
		IO0CLR=led;
		delay(j);
		IO0SET=led;
		delay(j);
	} 
    return 0;
}
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/