key.h

来自「采用非接触式红外线测量人体体温」· C头文件 代码 · 共 59 行

	sbit key1 = P3^2;
	sbit key2= P3^3;
   	sbit key3 = P3^4;
	sbit key4 = P3^5;
 	  	uchar ucKeyTemp;
	
 	#define keyPort P3
 
delaykey()
{
 while(30);
}
 
unsigned char GetKey(void)
{

	
//ucKeyTemp=0xff;	 
 if(key1==0)
 {
 //delaykey();
 if(key1==0)
   {
   ucKeyTemp=1;
   while(key1==0);   
   }
 }
  if(key2==0)
 {
// delaykey();
 if(key2==0)
   {
   ucKeyTemp=2;
   while(key2==0);   
   }
 }
  if(key3==0)
 {
 //delaykey();
 if(key3==0)
   {
   ucKeyTemp=3;
   while(key3==0);   
   }
 }
  if(key4==0)
 {
// delaykey();
 if(key4==0)
   {
   ucKeyTemp=4;
   while(key4==0);   
   }
 }

return(ucKeyTemp);
 

}