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#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
void Delay(uint x)
{
uchar i;
while(x--)
{
for(i=0;i<120;i++);
}
}
void putc_to_SerialPort(uchar c)
{
SBUF = c;
while(TI == 0);
TI = 0;
}
void puts_to_SerialPort(uchar *s)
{
while(*s != '\0')
{
putc_to_SerialPort(*s);
s++;
Delay(5);
}
}
void main()
{
uchar c = 0;
SCON = 0x40;
TMOD = 0x20;
PCON = 0x00;
TH1 = 0xfd;
TL1 = 0xfd;
TI = 0;
TR1 = 1;
Delay(200);
puts_to_SerialPort("Receiving From 8051...\r\n");
puts_to_SerialPort("------------------------------\r\n");
Delay(50);
while(1)
{
putc_to_SerialPort(c+'A');
Delay(100);
putc_to_SerialPort(' '); //這個地方‘’間只能有且必須有一個空格
Delay(100);
if(c==25)
{
puts_to_SerialPort("\r\n---------------------------\r\n");
Delay(100);
}
c = (c+1)%26;
if(c%10==0)
{
puts_to_SerialPort("\r\n");
Delay(100);
}
}
}
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