请大虾帮我看看这个键盘程序

只看该作者 · 2010-3-12 13:32

P3_4连蜂鸣器，高通.  请各位走过路过帮忙看看，调试的时候就是出不来，在线等待

void  keyscan(uchar key)    // 键盘扫描
{
P0=0xff;
  P2_3=0;P2_4=0;P2_5=0;P2_6=0;P2_7=0;
while(P0!=0xff)
{
  delay(1);
  while(P0!=0xff)
  {
                  P2_3=0;P2_4=1;P2_5=1;P2_6=1;P2_7=1;
switch(P0)
{
   case 0xfe:key=0x01;break; //  键符 TIME
   case 0xfd:key=0x02;break; //  键符 LAST
   case 0xfb:key=0x03;break; //  键符 AUX
   case 0xf7:key=0x04;break; //  键符 1
   case 0xef:key=0x05;break; //  键符 2
   case 0xdf:key=0x06;break; //  键符  3
   case 0xbf:key=0x07;break; //  键符 4
   case 0x7f:key=0x08;break; //  键符 5
   default:break;
   while(key!=0)
                  { P3_4=1;}
                  P3_4=0;
}
               P2_3=1;P2_4=0;P2_5=1;P2_6=1;P2_7=1;
switch(P0)
{
   case 0xfe:key=0x09;break;  //  键符 WIDE
   case 0xfd:key=0x0a;break;  //  键符 TELE
   case 0xfb:key=0x0b;break;  //  键符 NEAR
   case 0xf7:key=0x0c;break;  //  键符 FAR
   case 0xef:key=0x0d;break;  //  键符 CLOSE
   case 0xdf:key=0x0e;break;  //  键符 OPEN
   case 0xbf:key=0x0f;break;  //  键符 PATRN
   case 0x7f:key=0x10;break; // 键符 SHOT
   default:break;
   while(key!=0)
                  { P3_4=1;}
                  P3_4=0;
}

                     P2_3=1;P2_4=1;P2_5=0;P2_6=1;P2_7=1;                                                                                  switch(P0)
{
   case 0xfe:key=0x11;break; // 键符 MENU
   case 0xfd:key=0x12;break; // 键符 SITE
   case 0xfb:key=0x13;break; // 键符 SHIFT
   case 0xf7:key=0x14;break; // 键符 ALARM
   case 0xef:key=0x15;break; // 键符 LOCK
   case 0xdf:key=0x16;break; // 键符 ACK
   case 0xbf:key=0x17;break; // 键符 USER
   case 0x7f:key=0x18;break; // 键符 AUTO
   default:break;
   while(key!=0)
                  { P3_4=1;}
                  P3_4=0;
   }
                        P2_3=1;P2_4=1;P2_5=1;P2_6=0;P2_7=1;
                        switch(P0)
{
   case 0xfe:key=0x19;break; //  键符 ON
   case 0xfd:key=0x1a;break; //  键符 NEXT
   case 0xf7:key=0x1b;break; //  键符 OFF
   case 0xef:key=0x1c;break; //  键符 MON
   case 0xdf:key=0x1d;break; //  键符 C
   case 0x7f:key=0x1e;break; //  键符 CAM
   default:break;
   while(key!=0)
                  { P3_4=1;}
                  P3_4=0;
}
                     P2_3=1;P2_4=1;P2_5=1;P2_6=1;P2_7=0;
switch(P0)
{
   case 0xfe:key=0x1f;break; //  键符 SALVO
   case 0xfd:key=0x20;break; //  键符 HOLD
   case 0xfb:key=0x21;break; //  键符 RUN
   case 0xf7:key=0x22;break; // 键符 6
   case 0xef:key=0x23;break; // 键符 7
   case 0xdf:key=0x24;break; // 键符 8
   case 0xbf:key=0x25;break; // 键符 9
   case 0x7f:key=0x26;break;    //键符 0
   default:break;
   while(key!=0)
                  { P3_4=1;}
                  P3_4=0;
}
               }
}
}

只看该作者 · 2010-3-12 15:48

修改后通过了调试，可是烧到板子上还是不行。 1# zyming
void  keyscan()    // 键盘扫描
{
  P0=0xff;
  P2_3=0;P2_4=0;P2_5=0;P2_6=0;P2_7=0;
while(P0!=0xff)
{
  delay(1);
  while(P0!=0xff)
  {
      P2_3=0;P2_4=1;P2_5=1;P2_6=1;P2_7=1;
switch(P0)
{
   case 0xfe:key=0x01;break; //  键符 TIME
   case 0xfd:key=0x02;break; //  键符 LAST
   case 0xfb:key=0x03;break; //  键符 AUX
   case 0xf7:key=0x04;break; //  键符 1
   case 0xef:key=0x05;break; //  键符 2
   case 0xdf:key=0x06;break; //  键符  3
   case 0xbf:key=0x07;break; //  键符 4
   case 0x7f:key=0x08;break; //  键符 5
   default:break;
}
while(P0!=0xff)
                  { P3_4=1;}
            P3_4=0;
      P2_3=1;P2_4=0;P2_5=1;P2_6=1;P2_7=1;
switch(P0)
{
   case 0xfe:key=0x09;break;  //  键符 WIDE
   case 0xfd:key=0x0a;break;  //  键符 TELE
   case 0xfb:key=0x0b;break;  //  键符 NEAR
   case 0xf7:key=0x0c;break;  //  键符 FAR
   case 0xef:key=0x0d;break;  //  键符 CLOSE
   case 0xdf:key=0x0e;break;  //  键符 OPEN
   case 0xbf:key=0x0f;break;  //  键符 PATRN
   case 0x7f:key=0x10;break; // 键符 SHOT
   default:break;
}
while(P0!=0xff)
                  { P3_4=1;}
            P3_4=0;

            P2_3=1;P2_4=1;P2_5=0;P2_6=1;P2_7=1;
   switch(P0)
{
   case 0xfe:key=0x11;break; // 键符 MENU
   case 0xfd:key=0x12;break; // 键符 SITE
   case 0xfb:key=0x13;break; // 键符 SHIFT
   case 0xf7:key=0x14;break; // 键符 ALARM
   case 0xef:key=0x15;break; // 键符 LOCK
   case 0xdf:key=0x16;break; // 键符 ACK
   case 0xbf:key=0x17;break; // 键符 USER
   case 0x7f:key=0x18;break; // 键符 AUTO
   default:break;
   }
while(P0!=0xff)
                  { P3_4=1;}
            P3_4=0;
            P2_3=1;P2_4=1;P2_5=1;P2_6=0;P2_7=1;
            switch(P0)
{
   case 0xfe:key=0x19;break; //  键符 ON
   case 0xfd:key=0x1a;break; //  键符 NEXT
   case 0xf7:key=0x1b;break; //  键符 OFF
   case 0xef:key=0x1c;break; //  键符 MON
   case 0xdf:key=0x1d;break; //  键符 C
   case 0x7f:key=0x1e;break; //  键符 CAM
   default:break;
}
while(P0!=0xff)
                  { P3_4=1;}
            P3_4=0;
            P2_3=1;P2_4=1;P2_5=1;P2_6=1;P2_7=0;
switch(P0)
{
   case 0xfe:key=0x1f;break; //  键符 SALVO
   case 0xfd:key=0x20;break; //  键符 HOLD
   case 0xfb:key=0x21;break; //  键符 RUN
   case 0xf7:key=0x22;break; // 键符 6
   case 0xef:key=0x23;break; // 键符 7
   case 0xdf:key=0x24;break; // 键符 8
   case 0xbf:key=0x25;break; // 键符 9
   case 0x7f:key=0x26;break;    //键符 0
   default:break;
}
   while(P0!=0xff)
                  { P3_4=1;}
                  P3_4=0;
               }
}
}