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

#define  LED1  1 << 18 

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

void __irq PLL_INT()
{
	PINSEL1 = 0x00000000;
	IO0DIR = BEEP ;
	PLLCON = 3;
	PLLFEED = 0xAA;
	PLLFEED = 0x55;
	IO0CLR = BEEP;
	delay(100);
	IO0SET = BEEP;
	VICIntEnClr = 1 << 12;
	VICVectAddr = 0x00 ;
	
}

int main (void)
{// add user source code 
    uint32 i ;
    PINSEL1 = 0x00000001;
    PINSEL2 = PINSEL2 & (~0x08);
    IO1DIR = LED1 ;
    EXTWAKE = 0x01 ;
    EXTINT = 0x01 ;
    for(i=0;i<10;i++)
    {
    	IO1SET = LED1 ;
    	delay(20);
    	IO1CLR = LED1 ;
    	delay(20);
    }
    
    PCONP = 0x00;
    PCON = 0x02 ;
        
    PLLCON = 1;
    PLLCFG = 0x25;
    PLLFEED = 0xAA;
    PLLFEED = 0x55;
    while((PLLSTAT & (1 << 10)) == 0) ;
    PLLCON = 3;
	PLLFEED = 0xAA;
	PLLFEED = 0x55;
	
	for(i=0;i<10;i++)
    {
    	IO1SET = LED1 ;
    	delay(20);
    	IO1CLR = LED1 ;
    	delay(20);
    }
	
    while(1);
    return 0;
}
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/