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#include
#include
#include
#include
#define uchar unsigned char
#define uint unsigned int
sbit Key1 = P2^3;
sbit Key2 = P2^2;
sbit Key3 = P2^1;
sbit Key4 = P2^0;
sbit BELL = P3^6;
sbit CONNECT = P3^7;
unsigned int Key1_flag = 0;
unsigned int Key2_flag = 0;
unsigned int Key3_flag = 0;
unsigned int Key4_flag = 0;
unsigned char b;
unsigned char code Num[21]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,
0x90,0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00, 0x10,0x89};
unsigned char code Disdigit[4] = {0x7F,0xBF,0xDF,0xEF};
unsigned char Disbuf[4];
void delayms(uint t)
{
uint i;
while(t--)
{
/* 对于11.0592M时钟，约延时1ms */
for (i=0;i<125;i++)
{}
}
}
//-----------------------------------------------------
void SendData(uchar Dat)
{
uchar i=0;
SBUF = Dat;
while (1)
{
if(TI)
{
TI=0;
break;
}
}
}
void ScanKey()
{
if(Key1 == 0)
{
delayms(100); if(Key1 == 0)
{
Key1_flag = 1; Key2_flag = 0; Key3_flag = 0;
Key4_flag = 0;
Key1 = 1;
}
else;
}
if(Key2 == 0)
{
delayms(100);
if(Key2 == 0)
{
Key2_flag = 1; Key1_flag = 0; Key3_flag = 0;
Key4_flag = 0;
Key2 = 1;
}
else;
}
if(Key3 == 0)
{
delayms(50);
if(Key3 == 0)
{
Key3_flag = 1; Key1_flag = 0; Key2_flag = 0;
Key4_flag = 0;
Key3 = 1;
}
else;
}
if(Key4 == 0)
{
delayms(50);
if(Key4 == 0)
{
Key4_flag = 1;
Key1_flag = 0;
Key2_flag = 0;
Key3_flag = 0;
Key4 = 1;
}
else;
}
else;
}
void KeyProc()
{
if(Key1_flag)
{
TR1 = 1;
SendData(0x55);
Key1_flag = 0; }
else if(Key2_flag)
{
TR1 = 1;
SendData(0x11); Key2_flag = 0;
}
else if(Key3_flag) {
P1=0xff;
BELL = 0;
CONNECT = 1;
Key3_flag = 0;
}
else if(Key4_flag)
{
CONNECT = 0;
BELL = 1;
Key4_flag = 0;
}
else;
}
void Initdisplay(void)
{
Disbuf[0] = 1;
Disbuf[1] = 2;
Disbuf[2] = 3;
Disbuf[3] = 4;
}
void Display() //显示
{
unsigned int i = 0;
unsigned int temp,count;
temp = Disdigit[count]; P2 =temp;
temp = Disbuf[count];
temp = Num[temp];
P0 =temp;
count++;
if (count==4)
count=0;
}
void time0() interrupt 1 using 2 {
Display();
TH0 = (65535 - 2000)/256;
TL0 = (65535 - 2000)%256;
}
void main()
{
Initdisplay();
TMOD = 0x21;
TH0 = (65535 - 2000)/256;
TL0 = (65535 - 2000)%256;
TR0 = 1;
ET0 = 1;
TH1 = 0xFD; //11.0592M
TL1 = 0xFD;
PCON&=0x80;
TR1 = 1;
ET1 = 1;
SCON = 0x40; //串口方式
REN = 1;
PT1 = 0;
