#include <ioCC2530.h>
#define uint  unsigned int
#define uchar unsigned char

#define LED1   P1_0	 
#define LED2   P1_1	  
#define LED3   P1_4	  
#define KEY_S1   P0_1     

void Delay(uint);		
void InitIO(void);		
void InitKey(void);            
uchar KeyScan(void);           

uchar Keyvalue = 0 ;          
uint  KeyTouchtimes = 0 ;           
/****************************

*****************************/
void Delay(uint n)
{
	uint i;
	for(i = 0;i<n;i++);
        for(i = 0;i<n;i++);
        for(i = 0;i<n;i++);
        for(i = 0;i<n;i++);
        for(i = 0;i<n;i++);
}
/****************************

*****************************/
void InitKey(void)
{
  P0SEL &= ~0X02;  
  P0DIR &= ~0X02;  
  P0INP |= 0x02;  
  
}
/****************************

*****************************/
void InitIO(void)
{
    P1DIR |= 0x13; 
    LED1 = 1;
    LED2 = 1;
    LED3 = 1;	    
}
/*****************************************

*****************************************/
uchar KeyScan(void)
{
   if(KEY_S1 == 0)   
  {
    Delay(100);   
    if(KEY_S1 == 0)  
    {
      while(KEY_S1==0);  
      return(1);
    }
  }
  return(0);
}
/***************************

***************************/
void main(void)
{
  InitIO();		
  InitKey();           
  while(1)
  {
    Keyvalue = KeyScan();      
    
    if(Keyvalue == 1)         
    {           
      LED3 = !LED3;           
      Delay(20000); 
      LED2 = !LED2;                
      Delay(20000);           
      LED1 = !LED1;           
      Delay(20000);       
    }  
  }
}