Test Revision as of 13:40, 14 July 2014 by Sandeep (Talk | contribs) (diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

#include<reg51.h>  
#define Motors P2
#define Switches P1
#define Forward 0x05
#define Backward 0x0a
#define Left 0x06
#define Right 0x09
#define stop 0x00void
main()
{  
unsigned char SwitchInput;   
Switches = 0x0f; //Configure Switches  as Input    
Motors = 0X00;  //Configure both Motors as Output.  
while(1)   
 {	  
 SwitchInput = (0x0f & Switches)//read switch status and mask lower byte.     
 switch(SwitchInput)	
	{	  
        case 1: Motors = Forward; break;	 
        case 2: Motors = Backward; break;	  
        case 4: Motors = Left; break;	  
        case 8: Motors = Right; break;	  
        default: Motors =stop;	 
        }   
 }
}