sysini.c

实时时钟芯片PCF8563 控制C51源程序

#include <REG52.H>
#include <const.h>
#include <function.h>
#include <extern.h>

void MCU_Init(void)
{
	TMOD = 0x21;			//  T1:Mode 2(8-bit),  T0:Mode 1(16Bit)
	TH0  = TIMER_1ms_H;
	TL0  = TIMER_1ms_L;
	TR0  = 1;


	//Configure CPU UART for RS232 port
	//---------------------------------------
	PCON=PCON|0x80;				//SMOD=1
    SCON=0x50;					//#01010000B;     SIO Mode 3
    TCON=0x55;      			//start T0 and T1,INT1 and INT0 down-trigger
	SetBaudRat(BAUD9600);			//UART BaudRate 9600 is default)
	//------------------------
	
	IE = 0x82;
}

void Val_Init(void)
{
	sys_ms_count = 0;
}



void SetBaudRat(unsigned char BaudR)
{
	TR1 = 0;
	TL1 = BaudR ;
    TH1 = BaudR ;
	TR1 = 1;
}