/**********************************************************************
 * 文 件 名：key.c
 * 功    能：按鍵選擇程序
 * 日    期：2007.6.27
 **********************************************************************/
#include <hidef.h>      /* common defines and macros */
#include <mc9s12dg128.h>     /* derivative information */

 void Delay_ms(word xms); 
 void	WriteEEPROM(word data,word addr); 

 word temp0=0,temp1=0,temp2=0,temp3=0,temp4=0,temp5=0,temp6=0,temp7=0;

 //PTH_PTH0 ~ 7
 void key(void)  
 { 
       PORTB=0x00;
       for(;;)
            {
                  Delay_ms(10);
                  if(PTH_PTH0==0)
                  {
                        WriteEEPROM(temp0,1);
                        PORTB=~((byte)temp0);
                        temp0++;
                        while(PTH_PTH0==0);
                  }
                  
                  if(PTH_PTH1==0)
                  {
                        WriteEEPROM(temp1,2);
                        PORTB=~((byte)temp1);
                        temp1++;
                        while(PTH_PTH1==0);
                  }
                  
                   if(PTH_PTH2==0)
                  {
                        WriteEEPROM(temp2,3);
                        PORTB=~((byte)temp2);
                        temp2++;
                        while(PTH_PTH2==0);
                  }
                  
                   if(PTH_PTH3==0)
                  {
                        WriteEEPROM(temp3,4);
                        PORTB=~((byte)temp3);
                        temp3++;
                        while(PTH_PTH3==0);
                  }
                  
                   if(PTH_PTH4==0)
                  {
                        WriteEEPROM(temp4,5);
                        PORTB=~((byte)temp4);
                        temp4++;
                        while(PTH_PTH4==0);
                  }
                  
                   if(PTH_PTH5==0)
                  {
                        WriteEEPROM(temp5,6);
                        PORTB=~((byte)temp5);
                        temp5++;
                        while(PTH_PTH5==0);
                  }
                  
                   if(PTH_PTH6==0)
                  {
                        WriteEEPROM(temp6,7);
                        PORTB=~((byte)temp6);
                        temp6++;
                        while(PTH_PTH6==0);
                  }
                  
                   if(PTH_PTH7==0)
                   break;

            }
 }