简单加法计算器常见错误

{
{0xFF,0xFF,0xFF,0xFF},
{0xFF,0xFF,0xFF,0xFF},
{0xBaidu NhomakorabeaF,0xFF,0xFF,0xFF},
{0xFF,0xFF,0xFF,0xFF}
};
keybuf[keyout][0]=(keybuf[keyout][0]<<1) | KEY_IN_1;
keybuf[keyout][1]=(keybuf[keyout][1]<<1) | KEY_IN_2;
0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E,
};
unsigned char LedBuff[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
};
unsigned char code KeyCodeMap[4][4]={
{0x31,0x32,0x33,0x26},
#include<reg52.h>
sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
sbit ENLED = P1^4;
sbit KEY_IN_1 = P2^4;
sbit KEY_IN_2 = P2^5;
sbit KEY_IN_3 = P2^6;
case 5: ADDR2=1;ADDR1=0;ADDR0=1;i=0;P0=LedBuff[5];break;
default: break;
}
}
void KeyScan()
{
staticunsigned char keyout=0;
unsigned char i;
static unsigned char keybuf[4][4]=
{
signedchar i;
unsigned char buf[6];
for(i=0;i<6;i++)
{
buf[i] = num%10;
num = num/10;
}
for(i=5;i>=1;i--)
{
if(buf[i]==0)
{
LedBuff[i]=0xFF;
}
else break;
}
for(;i>=0;i--)
{0x34,0x35,0x36,0x25} ,
{0x37,0x38,0x39,0x28} ,
{0x30,0x1B,0x0D,0x27}
};
unsigned char KeySta[4][4]={
{1,1,1,1},
{1,1,1,1},
{1,1,1,1},
{1,1,1,1}
};
void KeyDriver();
{
LedBuff[i]=LedChar[buf[i]];
}
}
void KeyAction(unsigned char keycode)
{
staticunsignedlongresult = 0;
staticunsignedlongaddend = 0;
if((keycode>=0x30)&&(keycode<=0x39))
{
{1,1,1,1},
{1,1,1,1},
{1,1,1,1},
{1,1,1,1}
};
unsigned char i,j;
for(i=0;i<4;i++)
{
for(j=0;j<4;j++)
{
if(backup[i][j] != KeySta[i][j])
{
if(backup[i][j] != 0)
{
KeyAction(KeyCodeMap[i][j]);
keybuf[keyout][2]=(keybuf[keyout][2]<<1) | KEY_IN_3;
keybuf[keyout][3]=(keybuf[keyout][3]<<1) | KEY_IN_4;
for(i=0;i<4;i++)
{
if((keybuf[keyout][i] & 0x0F)==0x00)
sbit KEY_IN_4 = P2^7;
sbit KEY_OUT_1 = P2^3;
sbit KEY_OUT_2 = P2^2;
sbit KEY_OUT_3 = P2^1;
sbit KEY_OUT_4 = P2^0;
unsigned char code LedChar[]={
0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,
void main()
{
EA = 1;
ENLED = 0;
ADDR3 = 1;
TMOD = 0x01;
TH0 = 0xFC;
TL0 = 0x67;
ET0 = 1;
TR0 = 1;
LedBuff[0]=LedChar[0];
while(1)
{
KeyDriver();
}
}
void ShowNumber(unsigned long num)
{
result += addend;
addend=0;
ShowNumber(result);
}
else if (keycode == 0x1B)
{
addend = 0;
result = 0;
ShowNumber(addend);
}
}
void KeyDriver()
{
static unsigned char backup[4][4]=
case 1: KEY_OUT_1 =1;KEY_OUT_2=0;break;
case 2: KEY_OUT_2 =1;KEY_OUT_3=0;break;
case 3: KEY_OUT_3 =1;KEY_OUT_4=0;break;
default: break;
}
}
void InterruptTimer0() interrupt 1
{
addend = (addend*10)+(keycode - 0x30);
ShowNumber(addend);
}
else if(keycode==0x26)
{
result += addend;
addend=0;
ShowNumber(result);
}
else if (keycode == 0x0D)
{
TH0 = 0xFC;
TL0 = 0x67;
LedScan();
KeyScan();
}
case 2: ADDR2=0;ADDR1=1;ADDR0=0;i++;P0=LedBuff[2];break;
case 3: ADDR2=0;ADDR1=1;ADDR0=1;i++;P0=LedBuff[3];break;
case 4: ADDR2=1;ADDR1=0;ADDR0=0;i++;P0=LedBuff[4];break;
{
KeySta[keyout][i]=0;
}
else if((keybuf[keyout][i] & 0x0F)== 0x0F)
{
KeySta[keyout][i]=1;
}
}
keyout++;
keyout=keyout & 0x03;
switch(keyout)
{
case 0: KEY_OUT_4 =1;KEY_OUT_1=0;break;
}
}
backup[i][j]=KeySta[i][j];
}
}
}
void LedScan()
{
unsigned char i=0;
P0=0xFF;
switch(i)
{
case 0: ADDR2=0;ADDR1=0;ADDR0=0;i++;P0=LedBuff[0];break;
case 1: ADDR2=0;ADDR1=0;ADDR0=1;i++;P0=LedBuff[1];break;