Microcontroller Projects

serial-data-transmission.c

#include<reg51.h>

void main()
{

char A[]="www.microcontroller-project.com";
unsigned int i=0;
P3=0x03;   //Initializing 8051 UART
TMOD=0x20; // Timer1 Mode2 8 bit auto reload
TH1=0xFD;  // 9600 bps
SCON=0x50; // 8 Data bit, 1 start bit, bit 1 stop  

TR1=1;     // Timer1 ON

while(1)
{

while(A[i]!='\0'){
SBUF=A[i];  // Placing character one by one in the serial buffer register

while(TI==0); // It automatically poles up to 1 when character is transmitted
TI=0;
i++;
}
i=0;
}
}