serial.c

Code C Serial with AT89s52

//---------------------------------------
// Example read and write DS1820
// for AT89S52
// KEIL C51 v7.5
// www.GetMicro.com
//---------------------------------------
#include <AT89X52.H>
#include<stdio.h>
#include <string.h>

//---------------------------------------
// Initialize serial port
//---------------------------------------
void InitSerial(void)
{
 	SCON = 0x52;    // setup serial port control 
  	TMOD = 0x20;    // hardware (9600 BAUD @11.05592MHZ) 
  	TH1  = 0xFD;    // TH1
	TR1	 = 1;  		// Timer 1 on	*/	  

/*	SCON  = 0x50;
	RCLK=1;
	TCLK=1;
	RCAP2H=0xFF;
	RCAP2L=0xFD;       //115200
	TR2=1;
	TI=1;                //TI:   set TI to send first char of UART   */

}

void send_data(char uart_data)//gui du lieu qua cong COM
{
	TI=0;
	SBUF=uart_data;
	while(TI==0){}//cho trong khi dang gui du lieu
//	TI=0;
}

//***************Gu+?i mo^.t chuo^~i k