main.c
//如果在自动模式下按s6出现乱码，是因为eeprom数据变了，把数据重新写进去就可以了；
#include "main.h"
uchar h,m,s;
uchar shidu;
bit s7;
bit s6;
bit relay_flag;
uchar shidu_val;//湿度阈值
bit time_flag;
bit shidu_flag;
void Timer0Init(void) //2毫秒@11.0592MHz
{
AUXR |= 0x80; //定时器时钟1T模式
TMOD &= 0xF0; //设置定时器模式
TL0 = 0x9A; //设置定时初值
TH0 = 0xA9; //设置定时初值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
EA = 1;
ET0 = 1;
}
void key()//按键
{
if(P30 == 0)
{
Delay5ms();
if(P30 == 0)
{
s6 = 0;
relay_flag = 0;
s7 = ~s7;
}
while(!P30);
}
else if(P31 == 0)
{
Delay5ms();
if(P31 == 0)
{ s6 = ~s6;}
while(!P31);
}
else if(P32 == 0)
{
Delay5ms();
if(P32 == 0)
{
if(s6 == 1)
{
shidu_val++;
if(shidu_flag == 100)
shidu_flag = 0;
}
relay_flag = 1;
}
while(!P32);
}
else if(P33 == 0)
{
Delay5ms();
if(P33 == 0)
{
if(s6 == 1)
{
shidu_val--;
if(shidu_flag == 0)
shidu_flag = 99;
}
relay_flag = 0;
}
while(!P33);
}
}
void ds1302_read()
{
h = Read_Ds1302_Byte(0x85);
m = Read_Ds1302_Byte(0x83);
s = Read_Ds1302_Byte(0x81);
}
void main()
{
Y4; P0 = 0xff;
Y5; P0 = 0x00;
ds1302_wirte();
//at24c02_wirte(50);上电初始值；出现乱码使用的
shidu_val = at24c02_read(1);
Delay5ms();
Timer0Init();
while(1)
{
key();
if(time_flag == 1){ ds1302_read();time_flag = 0;}
if(shidu_flag == 1){ shidu = AD_read(0x03);shidu_flag = 0;}
if(s7 == 0)
{
if(s6 == 0)
{
smg_display(h/10,h%10,11,m/10,m%10,11,shidu%100/10,shidu%10);
if(shidu_flag == 0)
{ at24c02_wirte(shidu_val);}//eeprom和ad共用iic总线，所以，轮流使用；
}
else if(s6 == 1)
{
smg_display(11,11,10,10,10,10,shidu_val/10,shidu_val%10);
}
}
}
}
void Timer0() interrupt 1
{
uchar ms;
smg();
ms++;
if(ms%10 == 0){ time_flag = 1;ms = 0;}
if(ms%5 == 0){ shidu_flag = 1;}
if(s7 == 0)//自动工作状态
{
if(shidu<shidu_val){ Y5; P0 = 0x10;}
else { Y5; P0 = 0x00;}
}
else if(s7 == 1)//手动工作状态
{
if(s6 == 0)
{
if(relay_flag == 0)
{
if(shidu<shidu_val){ Y5; P0 = 0x40;}
else { Y5; P0 = 0x00;}
}
else if(relay_flag == 1)
{
if(shidu<shidu_val){ Y5; P0 = 0x50;}
else { Y5; P0 = 0x10;}
}
}
if(s6 == 1)
{
if(relay_flag == 1)
{
Y5; P0 = 0x10;
}
else if(relay_flag == 0)
{
Y5; P0 = 0x00;
}
}
}
}
main.h
#ifndef _MAIN_H
#define _MAIN_H
#include "common.h"
#include "smg.h"
#include "ds1302.h"
#include "iic.h"
#endif
common.c//公用的一些延时
#include "common.h"
void Delay5ms() //@11.0592MHz
{
unsigned char i, j;
i = 54;
j = 199;
do
{
while (--j);
} while (--i);
}
common.h
#ifndef _COMMON_H
#define _COMMON_H
#include "stc15f2k60s2.h"
#include "intrins.h"
#define uchar unsigned char
#define uint unsigned int
#define Y4 P2 = (P2&0x1f)|0x9f
#define Y5 P2 = (P2&0x1f)|0xaf
#define Y6 P2 = (P2&0x1f)|0xcf
#define Y7 P2 = (P2&0x1f)|0xef
#define Y0 P2 = (P2&0x1f)|0x1f
void Delay5ms();
#endif```
# ds1302.c
```c
#include <ds1302.h>
sbit SCK=P1^7;
sbit SDA=P2^3;
sbit RST = P1^3; // DS1302复位
void Write_Ds1302(unsigned char temp)
{
unsigned char i;
for (i=0;i<8;i++)
{
SCK=0;
SDA=temp&0x01;
temp>>=1;
SCK=1;
}
}
void Write_Ds1302_Byte( unsigned char address,unsigned char dat )
{
RST=0; _nop_();
SCK=0; _nop_();
RST=1; _nop_();
Write_Ds1302(address);
Write_Ds1302(((dat/10)<<4)|(dat%10));
RST=0;
}
unsigned char Read_Ds1302_Byte ( unsigned char address )
{
unsigned char i,temp=0x00;
RST=0; _nop_();
SCK=0; _nop_();
RST=1; _nop_();
Write_Ds1302(address);
for (i=0;i<8;i++)
{
SCK=0;
temp>>=1;
if(SDA)
temp|=0x80;
SCK=1;
}
RST=0; _nop_();
SCK=0; _nop_();
SCK=1; _nop_();
SDA=0; _nop_();
SDA=1; _nop_();
temp = (temp/16)*10 + temp%16;
return (temp);
}
void ds1302_wirte()
{
Write_Ds1302_Byte(0x84,8);
Write_Ds1302_Byte(0x82,30);
Write_Ds1302_Byte(0x80,0);
}
ds1302.h
#ifndef __DS1302_H
#define __DS1302_H
#include "common.h"
void ds1302_wirte();
unsigned char Read_Ds1302_Byte ( unsigned char address );
#endif
iic.c
#include "iic.h"
#define DELAY_TIME 5
#define SlaveAddrW 0xA0
#define SlaveAddrR 0xA1
//总线引脚定义
sbit SDA = P2^1;
sbit SCL = P2^0;
void IIC_Delay(unsigned char i)
{
do{ _nop_();}
while(i--);
}
//总线启动条件
void IIC_Start(void)
{
SDA = 1;
SCL = 1;
IIC_Delay(DELAY_TIME);
SDA = 0;
IIC_Delay(DELAY_TIME);
SCL = 0;
}
//总线停止条件
void IIC_Stop(void)
{
SDA = 0;
SCL = 1;
IIC_Delay(DELAY_TIME);
SDA = 1;
IIC_Delay(DELAY_TIME);
}
//发送应答
//void IIC_SendAck(bit ackbit)
//{
// SCL = 0;
// SDA = ackbit; // 0：应答，1：非应答
// IIC_Delay(DELAY_TIME);
// SCL = 1;
// IIC_Delay(DELAY_TIME);
// SCL = 0;
// SDA = 1;
// IIC_Delay(DELAY_TIME);
//}
//等待应答
bit IIC_WaitAck(void)
{
bit ackbit;
SCL = 1;
IIC_Delay(DELAY_TIME);
ackbit = SDA;
SCL = 0;
IIC_Delay(DELAY_TIME);
return ackbit;
}
//通过I2C总线发送数据
void IIC_SendByte(unsigned char byt)
{
unsigned char i;
for(i=0; i<8; i++)
{
SCL = 0;
IIC_Delay(DELAY_TIME);
if(byt & 0x80) SDA = 1;
else SDA = 0;
IIC_Delay(DELAY_TIME);
SCL = 1;
byt <<= 1;
IIC_Delay(DELAY_TIME);
}
SCL = 0;
}
//从I2C总线上接收数据
unsigned char IIC_RecByte(void)
{
unsigned char i, da;
for(i=0; i<8; i++)
{
SCL = 1;
IIC_Delay(DELAY_TIME);
da <<= 1;
if(SDA) da |= 1;
SCL = 0;
IIC_Delay(DELAY_TIME);
}
return da;
}
uint AD_read(uchar add)
{
uchar dat;
IIC_Start();
IIC_SendByte(0x90);
IIC_WaitAck();
IIC_SendByte(add);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0x91);
IIC_WaitAck();
dat = IIC_RecByte();
IIC_WaitAck();
IIC_Stop();
dat = dat/2.56;
return dat;
}
void at24c02_wirte(uchar dat)
{
IIC_Start();
IIC_SendByte(0xa0);
IIC_WaitAck();
IIC_SendByte(1);
IIC_WaitAck();
IIC_SendByte(dat);
IIC_WaitAck();
IIC_Stop();
}
uchar at24c02_read(uchar add)
{
uchar dat;
EA = 0;
IIC_Start();
IIC_SendByte(0xa0);
IIC_WaitAck();
IIC_SendByte(add);
IIC_WaitAck();
IIC_Stop();
IIC_Start();
IIC_SendByte(0xa1);
IIC_WaitAck();
dat = IIC_RecByte();
IIC_WaitAck();
IIC_Stop();
EA = 1;
return dat;
}
iic.h
#ifndef _IIC_H
#define _IIC_H
#include "common.h"
uint AD_read(uchar add);
void at24c02_wirte(uchar dat);
uchar at24c02_read(uchar add);
#endif```
# smg.c
```c
#include "smg.h"
uchar code smg_dula[] = { 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xbf};
uchar code smg_wela[] = { 0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
uchar smg_display_buff[] = { 1,2,3,4,5,6,7,8};
void smg_display(uchar d0,d1,d2,d3,d4,d5,d6,d7)
{
smg_display_buff[0] = d0;
smg_display_buff[1] = d1;
smg_display_buff[2] = d2;
smg_display_buff[3] = d3;
smg_display_buff[4] = d4;
smg_display_buff[5] = d5;
smg_display_buff[6] = d6;
smg_display_buff[7] = d7;
}
void smg()
{
uchar num;
Y6; P0 = smg_wela[num];
Y7; P0 = smg_dula[smg_display_buff[num]];
Y0; P0 = 0xff;
num++;
if(num == 8)
{
num = 0;
}
}
smg.h
#ifndef _SMG_H
#define _SMG_H
#include "common.h"
void smg();
void smg_display(uchar d0,d1,d2,d3,d4,d5,d6,d7);
#endif
小结
欢迎各位参加蓝桥杯单片机的小伙伴，能够指出我写的不好的地方，同时也感谢小破站逐日追影和小蜜蜂老师，我是从他们的视频开始学习的，我不推荐购买淘宝的课程。也希望各位同学可以一起交流，我的qq：2509834026
