sysini.c

飞利浦10碟VCD控制程序

#include <REG52.H>
#include <constant.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;

        IT0=1;     //INT0下降沿中断
//        EX0=1;     //允许INT0中断


	//Configure CPU UART for RS232 port
	//---------------------------------------
	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)
	//------------------------

}

void Val_Init(void)
{
	sys_ms_count = 0;
	bFlagSioCmd = 0;
        MsDelaySelect=MSDELAY;
        usTimeOut=0;
}



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

void LoadParameters(void)
{
	ReadEEPROM(TVTYPE_ADDR,&TV_type,1);	//TV高频头型号
	ReadEEPROM(TVMODE_ADDR,&TV_mode,1);	//TV制式
	ReadEEPROM(TVCHANNELNUM_ADDR,&MaxChannelNum,1);//上次关机前的频道号
	if(MaxChannelNum>MAXCHANNELNUM)MaxChannelNum=0;
	ReadEEPROM(LASTSELECTTVCHANNEL,&CurrentTVChannel,1);//上次关机前的频道号

}