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MSP430f2272單片機中斷控制4X4鍵盤程序

作者:未知   來源:山澗一溪流   點擊數(shù):  更新時間:2014年06月22日   【字體:
#include "msp430f2272.h"
int yu[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
          0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
int i,j,k,temp,dat,ms;
void delay(int ms)
{
  while(ms--)
   for(i=0;i<2;i++);
}
int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  P1DIR |=0x0f;    
  P2DIR  =0xff;  
   P1IE  |=0xf0;   
  P1IES |=0xf0;   
  P2OUT=yu[0];     
  P1IFG =0x00;
  _EINT(); 
  temp=0xfe;
  while(1)
  {
    temp=0xfe;
    P1OUT=temp;
    delay(5);
    temp=0xfd;
    P1OUT=temp;
    delay(5);
    temp=0xfb;
    P1OUT=temp;
    delay(5);
    temp=0xf7;
    P1OUT=temp;
    delay(5);
  }
}
 #pragma   vector=PORT1_VECTOR
 __interrupt void Port_ISR(void)
 {   
   switch(temp)
       {
           case 0xfe:
             {
               if(P1IFG==BIT4)dat=0;
               if(P1IFG==BIT5)dat=1;
               if(P1IFG==BIT6)dat=2;
               if(P1IFG==BIT7)dat=3;
               P2OUT =~yu[dat];
               P1IFG=0x00;
               break;
             }
           case 0xfd:
             {
               if(P1IFG==BIT4)dat=4;
               if(P1IFG==BIT5)dat=5;
               if(P1IFG==BIT6)dat=6;
               if(P1IFG==BIT7)dat=7;
               P2OUT =~yu[dat];
               P1IFG=0x00;
               break;
             }
           case 0xfb:
             {
               if(P1IFG==BIT4)dat=8;
               if(P1IFG==BIT5)dat=9;
               if(P1IFG==BIT6)dat=10;
               if(P1IFG==BIT7)dat=11;
                P2OUT =~yu[dat];
                P1IFG=0x00;
                break;
              }
           case 0xf7:
             {
               if(P1IFG==BIT4)dat=12;
               if(P1IFG==BIT5)dat=13;
               if(P1IFG==BIT6)dat=14;
               if(P1IFG==BIT7)dat=15;
                P2OUT =~yu[dat];
                P1IFG=0x00;
                break;
             }
           default:break;
       } 
 }
/*********************************************************/
#include "msp430f2272.h"
int yu[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
          0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
int i,j,k,temp,dat,ms;
void delay(int ms)
{
  while(ms--)
   for(i=0;i<2;i++);
}
int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  P1DIR |=0x0f;    
  P2DIR  =0xff;   
  P1REN |=0xf0;
  P1IE  |=0xf0;   
  P1IES |=0xf0;  
  P2OUT=~yu[6];     
  P1IFG =0x00;
  _EINT();
  temp=0xfe;
  while(1)
  {
    temp=0xfe;
    P1OUT=temp;
    delay(5);
    temp=0xfd;
    P1OUT=temp;
    delay(5);
    temp=0xfb;
    P1OUT=temp;
    delay(5);
    temp=0xf7;
    P1OUT=temp;
    delay(5);
  }
}
 #pragma   vector=PORT1_VECTOR
 __interrupt void Port_ISR(void)
 {   
   switch(temp)
       {
           case 0xfe:
             {
               if((P1IFG|0xef)==0xff)dat=0;
               if((P1IFG|0xdf)==0xff)dat=1;
               if((P1IFG|0xbf)==0xff)dat=2;
               if((P1IFG|0x7f)==0xff)dat=3;
               P2OUT =~yu[dat];
               P1IFG=0x00;
               break;
             }
           case 0xfd:
             {
               if((P1IFG|0xef)==0xff)dat=4;
               if((P1IFG|0xdf)==0xff)dat=5;
               if((P1IFG|0xbf)==0xff)dat=6;
               if((P1IFG|0x7f)==0xff)dat=7;
               P2OUT =~yu[dat];
               P1IFG=0x00;
               break;
             }
           case 0xfb:
             {
                if((P1IFG|0xef)==0xff)dat=8;
                if((P1IFG|0xdf)==0xff)dat=9;
                if((P1IFG|0xbf)==0xff)dat=10;
                if((P1IFG|0x7f)==0xff)dat=11;
                P2OUT =~yu[dat];
                P1IFG=0x00;
                break;
              }
           case 0xf7:
             {
                if((P1IFG|0xef)==0xff)dat=12;
                if((P1IFG|0xdf)==0xff)dat=13;
                if((P1IFG|0xbf)==0xff)dat=14;
                if((P1IFG|0x7f)==0xff)dat=15;
                P2OUT =~yu[dat];
                P1IFG=0x00;
                break;
             }
           default:break;
       } 
 }

 #include "msp430f2272.h"
int yu[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,
          0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
int i,j,k,temp,dat,ms;
void delay(int ms)
{
  while(ms--)
   for(i=0;i<2;i++);
}
int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  P1DIR |=0x0f;    
  P2DIR  =0xff;    
  P1REN |=0xf0;
  P1IE  |=0xf0;    
  P1IES |=0xf0;  
  P2OUT=~yu[6];     
  P1IFG =0x00;
  _EINT();
  temp=0xfe;
  while(1)
  {
    temp=0xfe;
    P1OUT=temp;
    delay(5);
    temp=0xfd;
    P1OUT=temp;
    delay(5);
    temp=0xfb;
    P1OUT=temp;
    delay(5);
    temp=0xf7;
    P1OUT=temp;
    delay(5);
  }
}
 #pragma   vector=PORT1_VECTOR
 __interrupt void Port_ISR(void)
 {   
   if(temp==0xfe)
   {
            if((P1IFG|0xef)==0xff)dat=0;
            if((P1IFG|0xdf)==0xff)dat=1;
            if((P1IFG|0xbf)==0xff)dat=2;
            if((P1IFG|0x7f)==0xff)dat=3;
            P2OUT =~yu[dat];
            P1IFG=0x00;
   }
      if(temp==0xfd)
   {
            if((P1IFG|0xef)==0xff)dat=4;
            if((P1IFG|0xdf)==0xff)dat=5;
            if((P1IFG|0xbf)==0xff)dat=6;
            if((P1IFG|0x7f)==0xff)dat=7;
            P2OUT =~yu[dat];
            P1IFG=0x00;
   }
         if(temp==0xfb)
   {
            if((P1IFG|0xef)==0xff)dat=8;
            if((P1IFG|0xdf)==0xff)dat=9;
            if((P1IFG|0xbf)==0xff)dat=10;
            if((P1IFG|0x7f)==0xff)dat=11;
            P2OUT =~yu[dat];
            P1IFG=0x00;
   }
         if(temp==0xf7)
   {
            if((P1IFG|0xef)==0xff)dat=12;
            if((P1IFG|0xdf)==0xff)dat=13;
            if((P1IFG|0xbf)==0xff)dat=14;
            if((P1IFG|0x7f)==0xff)dat=15;
            P2OUT =~yu[dat];
            P1IFG=0x00;
   } 
 }
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