ds12rc887時鐘數(shù)碼管

1、#include52單片機頭文件#defineuintunsignedint宏定義#defineuunsigned宏定義ushiwwanqianbaishiges1num設置幾個關于顯示的變量unsignedcodetable[]=0x3f0x060x5b0x4f0x660x6d0x7d0x070x7f0x6f0段選代碼ushigefenmiao時間變量時分秒bitflag標志位DS12CR887的四個位聲明sbitdscs=P1^0片

2、選信號sbitdsas=P1^1地址選通輸入sbitdsrw=P1^2讀寫輸入sbitdsds=P1^3數(shù)據(jù)選通或讀輸入sbits1=P3^4功能鍵sbits2=P3^5加sbits3=P3^6減sbitdula=P1^4sbitwela=P1^5函數(shù)1，延時函數(shù)voiddelay(uintz)延時子函數(shù)1MSuintxyf(x=zx0x)f(y=114y0y)函數(shù)2從DS12DS12RC887中讀取數(shù)據(jù)uread_ds(uadd)數(shù)據(jù)

3、讀取udatedsas=1dsds=1dsrw=1dscs=0P0=adddsas=0dsds=0P0=0xff讀取P0口先給P0口全賦個一date=P0wela=0關位選P2=0xff消隱delay(2)dula=1開段選P2=table[qian]送分的十位dula=0關段選P2=0xff消隱wela=1開位選P2=0xfb選通分的十位wela=0關位選P2=0xff消隱delay(2)dula=1開段選P2=table[bai]送

4、分的個位dula=0關段選P2=0xff消隱wela=1開位選P2=0xf7選通分的個位wela=0關位選P2=0xff消隱delay(2)dula=1開段選P2=table[shi]送秒的十位dula=0關段選P2=0xff消隱wela=1開位選P2=0xef選通秒的十位wela=0關位選P2=0xff消隱delay(2)dula=1開段選P2=table[ge]送秒的個位dula=0關段選P2=0xff消隱wela=1開位選P2=0