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#include<reg52.h>

#define Ch1Mode 0x00   // ͨµÀ1¹¤×÷ģʽ
#define Ch1Freq 0x01   //ͨµÀ1Êä³öƵÂÊÉ趨
#define Ch1Step 0x02   //ͨµÀ1²½½øÔöÁ¿
#define Ch2Mode 0x04   //ͨµÀ2¹¤×÷ģʽ
#define Ch2Freq 0x05   //ͨµÀ2Êä³öƵÂÊÉ趨
#define Ch2Step 0x06   //ͨµÀ2²½½øÔöÁ¿
#define Ch3Mode 0x08   //ͨµÀ3¹¤×÷ģʽ
#define Ch3Freq 0x09  //ͨµÀ3Êä³öƵÂÊÉ趨
#define Ch3Step 0x0A  //ͨµÀ3²½½øÔöÁ¿
#define SynMode 0x0c //ͬ²½Ä£Ê½

#define uchar unsigned char
#define uint unsigned int

sbit ji=PSW^0;

/*********msÑÓʱ³ÌÐò***********/
void delayms(uint x)
{
 uchar i,j;
 for(i=x;i>0;i--)
 for(j=0;j<110;j++);
}
/*********³õʼ»¯***************/
void Seril_init(void)
{
 delayms(1);   //ÑÓʱ´óÓÚ50us
 TMOD=0x20;
    TH1=0xfd;   //²¨ÌØÂÊ9600bps
    TL1=0xfd;
    TR1=1;     
    SCON=0xD0; //ÔÊÐí½ÓÊÕ
    TI=1;
 EA=0; 
}
/***********дÊý¾Ýº¯Êý*************/
void Write_data(uchar addr,uchar date)
{
 uchar Send_data;
 Send_data=0x50|addr;
 TB8=ji^0x01;
 SBUF=Send_data;
 while(TI==0);TI=0;
 delayms(5);
 Send_data=date;
 TB8=ji^0x01;
 SBUF=Send_data;
 while(TI==0);TI=0;
 delayms(5);
}
/*********¶ÁÊý¾Ýº¯Êý***********/
uchar Read_data(uchar addr)
{
 uchar Receive_data;
 uchar Send_data;
 Send_data=0xA0|addr;
 SBUF=Send_data;
 while(TI==0);TI=0;
 while(RI==0);RI=0;
 Receive_data=SBUF;
 return Receive_data;
}

void main()
{
 Seril_init();
 while(1)
 {
 Write_data(Ch1Mode,0x80);  //²½½øµç»úÕýÏò£¬×ÔÓÉÅÜ£¬È«²½
 Write_data(Ch1Freq,0xf0);  //Êä³öƵÂÊf=4k/(Ch1Freq+1)
 }

}