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You are here: Home / Replies / TRY THISMY WORKING

TRY THISMY WORKING

|

Microcontroller › 8051 › Help with serial communication › TRY THISMY WORKING

November 25, 2011 at 12:46 am #6877
Dexter
Participant

TRY THIS

MY WORKING CODE

 

 

#include………

…………..

…………

 

//  SERIAL COMMUNICATION
void serial_init        (void);                        //initialise serial communication
unsigned char recv_byte    (void);                        //recieves th ASCII value
void send_byte            (unsigned char);            //sends ASCII value to PC or microcontroller
void sendString            (unsigned char *str);
void enter(void);

 

 

void main()
{

unsigned char A;

serial_init();
sendString(“WELCOME TO RS232 COM1”);
enter();
sendString(“DEXTER8051”);
enter();

 

A=recv_byte()

…………………

………………

………………

}

 

 

/*SENDING THE ENTER CAMMAND*/
void enter()
{
    send_byte(0x0d);       //  <CR>
    send_byte(0x0a);        // <LF>
}

/*SERIAL ROUTINES*/
void serial_init()
{
    SCON=0x50;                        //mode 1 serial communication
    TMOD=0x20;                        //timer 1 auto reload mode
    TH1=0xfd;                        //9600 baudrate at 11.0592 MHz
    TR1=1;
    EA=1;
    EX0=1;
    IT0=1;
    IP=0x10;
}
/* RECIVING BIT FROM PC*/
unsigned char recv_byte()
{
    unsigned char c;
    while(!RI);                        //waits till a byte is recieved
    RI = 0;
    c = SBUF;
    return(c);
}
  /* SENDING BIT TO PC*/
void send_byte(unsigned char ch)
{
    TI = 0;
    SBUF = ch;
    while(!TI);
    del_1ms();
}
/* SENDING STRING BIT TO PC*/
void sendString(unsigned char *str)
{
    while(*str != ‘’)
    send_byte(*str++);
}

 

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