key.c

实现了uc/os下面的串口、nRF2401的控制

#include "config.h"


#define BEEP   

#define KEY1   1<<16
#define KEY2   1<<17
#define KEY3   1<<18
#define KEY4   1<<19
#define KEY5   1<<20
#define KEY6   1<<21
#define KEYS   (0x03f)<<16


#define LED1   1<<18
#define LED2   1<<19
#define LED3   1<<20
#define LED4   1<<21
#define LED5   1<<22
#define LED6   1<<23
#define LED7   1<<24
#define LED8   1<<25



#define PasswordLength 3

uint32 PasswordNum[PasswordLength];

uint32 InputPassword[PasswordLength];



void InitGetPassword(void)
{
     PINSEL1 = PINSEL1 &(~(0x0fff));
     IO0DIR  = IO0DIR & (~KEYS);
     PINSEL2 = PINSEL2 & (~(0x08));
     IO1DIR  = IO1DIR | (LEDS);
     IO1SET  = LEDS;
}


void SetPassword( uint32* key)
{
    uint8 i;
    for(i= 0; i<PasswordLength;i++)
        PasswordNum[i] = *(key+i);
}




void InputRemind(void)
{
    IO1CLR = LED8;
    OSTimeDlyHMSM(0,0,0,250);
    IO1SET = LED8;
    OSTimeDlyHMSM(0,0,0,250);
}


void WrongRemind(void)
{
    IO1CLR = LED7;
    OSTimeDlyHMSM(0,0,0,100);
    IO1SET = LED7;
    OSTimeDlyHMSM(0,0,0,100);
}



uint8 GetPasswordNum(void)
{
    uint8 i;
   
    uint32 temp;
    
    while((IO0PIN | KEYS) == IO0PIN)
        InputRemind();
    
    for(i = 0; i<PasswordLength;i++)
    {
      
       while((IO0PIN | KEYS) == IO0PIN);
     
//       if((IO0PIN | KEYS) == IO0PIN)
//           return NULL;
       
       OSTimeDlyHMSM(0,0,0,50);

       
       if((IO0PIN | KEYS) == IO0PIN)
           return NULL;
       
       IO1CLR = LED8;
       
       temp = IO0PIN & KEYS;
       
       temp = temp >> 16;
      
 //备注：#define的常量作为右值赋给变量时不能进行取反等操作，否则编译器将自动优化掉。      
       switch(temp)
       {  
          case 0x3e: IO1CLR = LED1;break;
          case 0x3d: IO1CLR = LED2;break;
          case 0x3b: IO1CLR = LED3;break;
          case 0x37: IO1CLR = LED4;break;
          case 0x2f: IO1CLR = LED5;break;
          case 0x1f: IO1CLR = LED6;break;
          default : break;
       }
       
     
        
       while((IO0PIN | KEYS) != IO0PIN)
          OSTimeDlyHMSM(0,0,0,50);
   
       InputPassword[i] = temp;
       
       IO1SET = LEDS;
        
       IO1CLR = LED8;
       
    }
      
     
     IO1SET = LED8;
     
     return TRUE;
}


uint8 CheckPassword(void)
{
    uint8 i;
    for(i=0;i<PasswordLength;i++)
    {
        if((*(InputPassword+i))!=(* (PasswordNum+i)))
            return FALSE;
    }
    
    return TRUE;
}

 
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