iic主程序.txt

这是单片机的IIC通信的程序

#include "REG52.h"
#include "intrins.h"
#include "8563.h"
/*————————————————————
2 〖说明〗I2C总线驱动程序(用两个普通IO模拟I2C总线)
3 包括100Khz(T=10us)的标准模式(慢速模式)选择，
4 和400Khz(T=2.5us)的快速模式选择，
5 默认11.0592Mhz的晶振。
*/

#define x1    0x80
#define x2    0x88
#define y     0x80
#define comm  0
#define dat   1

sbit rs = P1^2;   //H=data; L=command;
sbit rw = P1^5;   //H=read; L=write;
sbit  e = P1^7;   //input enable;
//sbit psb= P0^3;   //H=并口; L,=串口;
//sbit rst= P0^4;   //Reset Signal 低电平有效

sbit busy=P0^7;   //lcd busy bit
unsigned char  tab1[]={
"----时----间----"
" 06 H 06 M  06 S"
"----日----期----"
" 06 Y 06 M  06 D"
};
 void wr_lcd (unsigned char dat_comm,unsigned char content);
 void chk_busy (void);
 void delay (unsigned int us);
 void init_lcd (void)
{
  //rst=1;
  //psb=1;
  wr_lcd (comm,0x30);  /*30---基本指令动作*/   
  wr_lcd (comm,0x01);  /*清屏，地址指针指向00H*/
  wr_lcd (comm,0x06);  /*光标的移动方向*/
  wr_lcd (comm,0x0c);  /*开显示，关游标*/
}
/*---------------显示汉字或字符----------------*/
void chn_disp (unsigned char  *chn)
{
  unsigned char i,j;
  wr_lcd (comm,0x30);
  wr_lcd (comm,0x80);
  for (j=0;j<4;j++)
  {
    for (i=0;i<16;i++)
    wr_lcd (dat,chn[j*16+i]);
   
  }
}

/*--------------清DDRAM------------------*/
void clrram (void)
{
  wr_lcd (comm,0x30);
  wr_lcd (comm,0x01);
}
/*---------------------------------------*/
void wr_lcd (unsigned char dat_comm,unsigned char content)
{
  chk_busy ();
  if(dat_comm)
   {
    rs=1;   //data
    rw=0;   //write
   }
  else 
   {
    rs=0;   //command
    rw=0;   //write
   }
  P0=content;   //output data or comm
  e=1;
  ;
  e=0;
}

void chk_busy (void)
{
  P0=0xff;
  rs=0;
  rw=1;
  e =1;
  while(busy==1);
  e =0;
}

void delay (unsigned int us)   //delay time
{
  while(us--);
}
void delay1 (unsigned int ms)
{
  unsigned int i,j;
  for(i=0;i<ms;i++)
  for(j=0;j<15;j++)
  delay(1);
}

void main(void)
{  
	init_lcd ();

	tab1[18]=g8563_Store[2]%0x10+0x30;
	tab1[17]=g8563_Store[2]/0x10+0x30;
	tab1[23]=g8563_Store[1]%0x10+0x30;
	tab1[22]=g8563_Store[1]/0x10+0x30;
	tab1[29]=g8563_Store[0]%0x10+0x30;
	tab1[28]=g8563_Store[0]/0x10+0x30;
	chn_disp(tab1);
	delay1(5000);

	P8563_init();

	while(1)
   {P8563_gettime();	
	
	tab1[50]=g8563_Store[6]%0x10+0x30;
	tab1[49]=g8563_Store[6]/0x10+0x30;
	tab1[55]=g8563_Store[5]%0x10+0x30;
	tab1[54]=g8563_Store[5]/0x10+0x30;
	tab1[61]=g8563_Store[3]%0x10+0x30;
	tab1[60]=g8563_Store[3]/0x10+0x30;
	tab1[18]=g8563_Store[2]%0x10+0x30;
	tab1[17]=g8563_Store[2]/0x10+0x30;
	tab1[23]=g8563_Store[1]%0x10+0x30;
	tab1[22]=g8563_Store[1]/0x10+0x30;
	tab1[29]=g8563_Store[0]%0x10+0x30;
	tab1[28]=g8563_Store[0]/0x10+0x30;
	
	chn_disp(tab1);
	}
}