89c51 interfacing with rs232 as well as 16×2 LCD

[ronakpatel]

i w’d like to show my hyperterminal data in MY 16*2 LCD via  89c51.i.e what i m wrting in hyper terminal or inside 89c51 that wyd like to dispay on lcd it is possible??

i have done  interface lcd ans max 232 with 89c51 on the hardware basis.but when i write my code for interfacing that was not working.

 

[AJISH ALFRED]

Please postyour code, we will try to figure out the mistake.

[ronakpatel]

 

#include “reg51.h”

 

 

void inici_serie (void)

{

 

 

 

PCON |= 0x80; // SMOD = 1; => transmition rate x2

 

SCON = 0x50; // Serial port in mode 1

 

 

TMOD |= 0x20; // Timer 1, in mode 2

// i. e., timer of 8 bits with autoreload

 

//TH1 = 256 – (((smod + 1) * f_xtal) / (384 * baud)); TH1 = 0xFA; // for baud = 9600

TL1 = TH0;

 

// Activa timer0

TR1 = 1;

}

 

char receive_char (void)

{

RI = 0;

 

return SBUF;

}

 

void send_char (char chr)

{

TI = 0; 

SBUF = chr 

while(!TI) 

TI = 0;

}

 

void send_msg (char *msg)

{

TI = 0;

 

while(*msg)

{

SBUF = *(msg++);

while (!TI); TI = 0;

}

}

 

 

void main (void)

{

char chr;

 

inici_serie();

 

send_msg (“Hello!n”);

 

while (1)

{

if (RI) // do echo of the character received

{

character = receive_char ();

send_char (chr);

}

}

}

 

[RUBEN KURIAKOSE]

Code show here has some error. You will get correct code from various sites

[arisan]

how to validate a number for gsm based notice board?

 

[raj]

hii u need to have proper baud rate,

 

[Author]

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