第3次上机实验 PCF8563(new).doc

第3次实验/* main.c *#include#include#includevoid delay_1s(unsigned int ); /有关的函数声明void separate(unsigned char sec,min,hou); /有关的函数声明unsigned char j0,j1,j2=17,j3;j4,j5=17,j6,j7;main() unsigned LastSec; delay_1s(2); Init_pcf8563(); /初始化时间 write_time_8563(); /初始化时间 while(1) read_time_8563(); if(sec!=LastSec)/秒变化时，才进行显示 LastSec=sec;/保存现在的秒值，准备与下一个读出的秒比较 separate(sec,min,hou); display(j0,j1,j2,j3,j4,j5,j6,j7); delay_1s(10000);void separate(unsigned char sec,min,hou) j0=sec%10; j1=sec/10; j3=min%10; j4=min/10; j6=hou%10; j7=hou/10;void delay_1s(unsigned int x ) while(x-);Display.hvoid shift(unsigned char);void display(unsigned char j0,j1,j2,j3,j4,j5,j6,j7);sbit sda=P02;sbit scl=P03;code char led_code19= /display code0x11,0xd7,0x32,0x92,0xd4,/0,1,2,3,40x98,0x18,0xd3,0x10,0x90,/5,6,7,8,90x50,0x1c,0x39,0x16,0x38,/a,b,c,d,e0x78,0xfe,0xef,0xff / f- dot darkf; Display.c#include void display(unsigned char j0,j1,j2,j3,j4,j5,j6,j7) shift(j0);shift(j1); shift(j2);shift(j3);shift(j4);shift(j5);shift(j6);shift(j7);void shift(unsigned char n) unsigned char m,i; m=led_coden; scl=0; for(i=0;i8;i+) if (m & 0x80) sda=1; else sda=0; scl=1; scl=0; m0;i-) if(dat&0x80)sda_8563 = 1; else sda_8563 = 0; scl_8563 = 1; scl_8563 = 0; dat0;i-) scl_8563 = 1; dat=dat1; if(sda_8563)dat|=0x01; scl_8563 = 0; sda_8563 = 1;scl_8563 = 1;scl_8563 = 0;return(dat);void Init_pcf8563(void) /初始化pcf8563 unsigned char i,j;for(i=8;i8;i-) if(i=4)j=(timei)&0x07; else j=(timei/10)4 )&0xf0 )|(timei%10)&0x0f ); start(); writebyte_8563(0xa2); /选择写8563芯片 writebyte_8563(i+0x02); /写地址 writebyte_8563(j); /写数据 stop(); void read_time_8563(void) /读日期unsigned char i;for(i=0;i4&0x0f)*10+(sec&0x0f);min=(min&0xf0)4&0x0f)*10+(min&0x0f);hou=(hou&0xf0)4&0x0f)*10+(hou&0x0f);day=(day&0xf0)4&0x0f)*10+(day&0x0f);mon=(mon&0xf0)4&0x0f)*10+(mon&0x0f);year=(year&0xf0)4&0x0f)*10+(year&0x0f);/BCD码转换成10进制数void write_time_8563(void) /写日期start(); /写年份writebyte_8563(0xa2);writebyte_8563(0x08);writebyte_8563(year);stop();start(); /写月份writebyte_8563(0xa2);writebyte_8563(0x07);writebyte_8563(mon);stop();start(); /写日writebyte_8563(0xa2);writebyte_8563(0x05);writebyte_8563(day);stop();start(); /写时writebyte_8563(0xa2);writebyte_8563(0x04);writebyte_8563(hou);stop(); start();/写分writebyte_8563(0xa2);writebyte_8563(0x03);writebyte_8563(min);stop();start(); /写秒writebyte_8563(0xa2);writebyte_8563(0x02)