ds3231可以用ds3232代替吗
Posted
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了ds3231可以用ds3232代替吗相关的知识，希望对你有一定的参考价值。
参考技术A 可以替换，如果反过来，用3232替换3231，则需要看有没有使用SRAM。如果使用了SRAM，就不能代替，如果没有使用，可以代替 参考技术B 可以单片机+ds1302+仿真程序 用三个按键调时间
51单片机对DS1302的仿真 用三个按键调时间
-
ds1302芯片
-
1602液晶
-
AT89C51主控
-
仿真效果
-
程序代码
#include <REGX52.H>
#define uchar unsigned char
#define uint unsigned int
#define data8 P0
sbit rst=P1^0;
sbit sck=P1^1;
sbit sda=P1^2;
sbit rs=P1^3;
sbit rw=P1^4;
sbit e=P1^5;
sbit key1=P2^0;
sbit key2=P2^1;
sbit key3=P2^2;
sbit start= P2^3;
sbit ale=P1^6;
sbit eoc=P1^7;
sbit oe=P2^4;
uchar table1[]="TIME:";
uchar table2[]="DATE:";
uchar table[]="0123456789:-";
uchar code chuzhi[]={0x80,0x34,0x18,0x15,0x04,0x04,0x21,0x00};
uchar code dizhi[]={0x80,0x82,0x84,0x86,0x88,0x8a,0x8c,0x80};
uchar code chushi1602[]={0x38,0x0c,0x01};
uchar chuncu[7]={0};
uchar song,temp1,adc;
void delayms(uint xms)
{
uchar i;uint j;
for(j=xms;j>0;j--)
for(i=110;i>0;i--);
}
void ad();
void t0()
{
TMOD = 0x01;
TH0 = 0x0FE;
TL0 = 0x0C;
EA = 1;
ET0 = 1;
TR0 = 1;
}
void zl1602(uchar zlduan)
{
rs=0;
rw=0;
data8=zlduan;
delayms(1);
e=1;
delayms(5);
e=0;
}
void sj1602(uchar sjduan)
{
rs=1;
rw=0;
data8=table[sjduan];
delayms(1);
e=1;
delayms(5);
e=0;
}
void sc1602(uchar sjduan)
{
rs=1;
rw=0;
data8=sjduan;
delayms(1);
e=1;
delayms(5);
e=0;
}
void cs1602()
{
uchar i;
for(i=0;i<3;i++)
{
zl1602(chushi1602[i]);
}
}
void cs1302()
{
rst=0;
sck=0;
rst=1;
}
void xie1302(uchar temp) //1000 0000
{
uchar i;
for(i=8;i>0;i--)
{
sda=temp&0x01; //0
sck=0;
sck=1;
temp>>=1; //0100 0000
}
}
uchar song1302()
{
uchar i;
for(i=0;i<8;i++)
{
if(sda)
{
song|=0x80;
}
sck=1;
sck=0;
song>>=1;
}
return(song);
}
void r1302(uchar radd,uchar rdata)
{
cs1302();
delayms(1);
rst=1;
xie1302(radd);
xie1302(rdata);
rst=0;
}
void w1302(uchar add)
{
cs1302();
delayms(1);
rst=1;
xie1302(add);
temp1=song1302();
rst=0;
sck=0;
}
void chushi()
{
uchar i;
for(i=0;i<8;i++)
{
r1302(dizhi[i],chuzhi[i]);
}
}
uchar zhuanhuan()
{
uchar i,dat=0x81;
for(i=0;i<7;i++)
{
w1302(dat);
chuncu[i]=song;
dat+=2;
}
return(chuncu);
}
void xianshi()
{
uchar i;
for(i=0;i<5;i++)
{
zl1602(0x80+i);
sc1602(table1[i]);
delayms(2);
zl1602(0x80+i+0X40);
sc1602(table2[i]);
delayms(2);
}
zl1602(0x8C);
sj1602(chuncu[0]&0x0f);
delayms(2);
zl1602(0x8B);
sj1602(chuncu[0]>>4);
delayms(2);
zl1602(0x89);
sj1602(chuncu[1]&0x0f);
delayms(2);
zl1602(0x88);
sj1602(chuncu[1]>>4);
delayms(2);
zl1602(0x86);
sj1602(chuncu[2]&0x0f);
delayms(2);
zl1602(0x85);
sj1602(chuncu[2]>>4);
delayms(2);
zl1602(0x8e+0x40);
sj1602(chuncu[3]&0x0f);
delayms(2);
zl1602(0x8d+0x40);
sj1602(chuncu[3]>>4);
delayms(2);
zl1602(0x8b+0X40);
sj1602(chuncu[4]&0x0f);
delayms(2);
zl1602(0x8a+0x40);
sj1602(chuncu[4]>>4);
delayms(2);
zl1602(0x8f);
sj1602(chuncu[5]);
delayms(2);
zl1602(0x88+0X40);
sj1602(chuncu[6]&0x0f);
delayms(2);
zl1602(0x87+0X40);
sj1602(chuncu[6]>>4);
delayms(2);
zl1602(0x86+0X40);
sj1602(0);
delayms(2);
zl1602(0x85+0X40);
sj1602(2);
delayms(2);
zl1602(0x87);
sj1602(10);
delayms(2);
zl1602(0x8a);
sj1602(10);
delayms(2);
zl1602(0x89+0X40);
sj1602(11);
delayms(2);
zl1602(0x8c+0X40);
sj1602(11);
delayms(2);
}
void anjian()
{
uchar temp,mun,mun1,mun2;
if(key1==0)
{
delayms(10);
if(key1==0)
{
temp++;
}
}
while(!key1);
if(temp<=7)
{
switch(temp)
{
case 1:
if(key2==0)
{
delayms(10);
if(key2==0)
{
mun=chuncu[1];
mun++;
mun1=chuncu[1]&0x0f;
if(mun1>=0x09)
{
mun=mun&0xf0;
mun=mun+0x10;
}
r1302(0x82,mun);
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
mun=chuncu[1];
mun--;
mun1=chuncu[1]&0x0f;
if(mun1<=0x00)
{
mun=mun&0xf0+9; //退位是15 直接清零+9
}
r1302(0x82,mun);
}
mun2=chuncu[1]&0xf0;
if(mun2>=0x59)
{
r1302(0x82,0x00);
}
} break;
case 2:
if(key2==0)
{
delayms(10);
if(key2==0)
{
mun=chuncu[2];
mun++;
mun1=chuncu[2]&0x0f;
if(mun1>=0x09)
{
mun=mun&0xf0;
mun=mun+0x10;
}
r1302(0x84,mun);
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
mun=chuncu[2];
mun--;
mun1=chuncu[1]&0x0f;
if(mun1<0x01)
{
mun=mun&0xf0+9; //退位是15 直接清零+9
}
r1302(0x84,mun);
}
} break;
case 3:
if(key2==0)
{
delayms(10);
if(key2==0)
{
mun=chuncu[5];
mun++;
r1302(0x8a,mun);
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
mun=chuncu[5];
mun--;
mun1=chuncu[1]&0x0f;
if(mun1<=0x00)
{
mun=mun&0xf0+9; //退位是15 直接清零+9
}
r1302(0x8a,mun);
}
} break;
case 4:
if(key2==0)
{
delayms(10);
if(key2==0)
{
mun=chuncu[3];
mun++;
mun1=chuncu[3]&0x0f;
if(mun1>=0x09)
{
mun=mun&0xf0;
mun=mun+0x10;
}
r1302(0x86,mun);
}
if(mun&0x0f==0x0a)
{
mun +=0x10;
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
mun=chuncu[3];
mun--;
mun1=chuncu[1]&0x0f;
if(mun1<=0x00)
{
mun=mun&0xf0+9; //退位是15 直接清零+9
}
r1302(0x86,mun);
}
} break;
case 5:
if(key2==0)
{
delayms(10);
if(key2==0)
{
mun=chuncu[4];
mun++;
mun1=chuncu[4]&0x0f;
if(mun1>=0x09)
{
mun=mun&0xf0;
mun=mun+0x10;
}
r1302(0x88,mun);
}
}
if(key3==0)
{
delayms(10);
if(key3==0)
{
mun=chuncu[4];
mun--;
mun1=chuncu[1]&0x0f;
if(mun1<=0x00)
{
mun=mun玩转 RTC时钟库 DS3231
求TM1637数显+STC89RC+DS3231组成的一款数码电子时钟.
DS12C887,DS1302,DS3231时钟芯片那个精度比较高？