main.c

三星公司的S3c2410嵌入式开发的点灯程序

#include <stdlib.h>
#include <string.h>

#include "def.h"
#include "option.h"
#include "2410addr.h"
#include "2410lib.h"
#include "2410slib.h"

void Led_Display(int data);

//===================================================================
void Main(void)
{
    int i;

    
   
    ChangeClockDivider(1,1);          // 1:2:4    

    ChangeMPllValue(0xa1,0x3,0x1);    // FCLK=202.8MHz  



    Port_Init();							//Init The I/O Port

	while (1)
	{
	    Led_Display(0x05);					//LED  On
		for (i=0; i<0xfffff; i++);			//Delay
	    Led_Display(0x0a);    				//LED  Off
	   	for (i=0; i<0xfffff; i++);			//Delay
    }
    
 
}

//===================================================================
//Active is low.(LED On)
// GPF7  GPF6   GPF5   GPF4
//nLED_1 nLED2 nLED_4 nLED_3
void Led_Display(int data)
{

    rGPFDAT = (rGPFDAT & ~(0xf<<4)) | ((~data & 0xf)<<4);    
}