main.c

周立功的EASYARM2131的测试程序

/****************************************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  BEEP  1 << 7

void delay(uint32 dly)
{
	uint32 i ;
 	for(; dly > 0 ; dly --)
		for( i = 0 ; i < 50000 ; i++);
} 

void __irq IRQ_Eint0()
{
	uint32 i;
	i = IO0SET ;
	if((i & BEEP) == 0)
		IO0SET = BEEP;
	else
		IO0CLR = BEEP ;
	EXTINT = 0x01 ;
	VICVectAddr = 0;
}

int main (void)
{// add user source code 
    PINSEL0 = 0x00000000;
    PINSEL1 = 0x00000001;
    IO0DIR = BEEP;
    IO0SET = BEEP;
    IRQEnable();
    VICDefVectAddr = (uint32)IRQ_Eint0;
    EXTINT = 0x01 ;
    VICIntEnable = 1 << 0x0e ;
    while(1) ;
    return 0;
}
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/