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 << 18

#define SoftInt  28 
uint8 *addr;
#define VECTOR_RAM		((unsigned char *)0x40000008)
	
void delay(uint32 dly)
{
	uint32 i ;
 	for(; dly > 0 ; dly --)
		for( i = 0 ; i < 50000 ; i++);
} 

void __irq IRQ_Eint0()
{
	if((IO1SET & BEEP) == 0) 
		IO1SET = BEEP ;
	else
		IO1CLR = BEEP ;
//	while((EXTINT & 0x01) != 0)
	{
		EXTINT = 0x01 ;
	}
	VICSoftIntClear = 1 << SoftInt ;
	VICVectAddr = 0;
}

int main (void)
{// add user source code 
	uint32  i;
	addr   = VECTOR_RAM;
	PINSEL0 = 0x00000000;
	PINSEL2 = PINSEL2 &(~0x08);
	IO1DIR = BEEP;
	IO1SET = BEEP ;
	IRQEnable();
	VICIntSelect = 0x00000000;
	VICVectCntl0 = 0x20 | SoftInt ;
    VICVectAddr0 = (uint32)IRQ_Eint0;
    EXTINT = 0x01;
    VICIntEnable = 1 << SoftInt;

	
	/*for (i=0; i<50; i++)
	{	
		*addr = 0x55;
		addr++;
	}*/
	
    for(i = 0 ; i < 20 ; i++)
    {
    	VICSoftInt = 1 << SoftInt ;
    	delay(100);
    	delay(100);
    }
    while(1);
    return 0;
}
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/