At first I wanted to use interrupts, but in the end I ended up using code.
#include
#define uchar unsigned char
#define uint unsigned int
uchar code tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};// Digital table
uchar num1; //Display tens digit
uchar num0; //Display units digit
//---------------------------------
void delay(uint k) //Delay
{
while(k--);
}
//-----------------------------
void main()
{
uchar j;
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
TR1=1;
SCON=0x50;
while(1)
{
while(RI==1) //Input the first number
{
j=SBUF;
num1=j-'0';
RI=0;
while(RI==0); // Enter the second number
j=SBUF;
num0=j-'0';
RI=0;
}
P0=tab[num1];
P2=0xfd;
delay(100);
P0=tab[num0];
P2=0xfe;
delay(100);
}
}
Reference address：Use the serial port to input integer simple code
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