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#include <reg51.h>
#include <intrins.h>
#include <sys\sys.h>
#include <lcd\lcd.h>
#include <font\font.h>
typedef unsigned char BYTE;
typedef unsigned char uchar;
typedef unsigned int WORD;
#define FOSC 24000000L //系统频率
#define BAUD 9600 //串口波特率
#define T1MS (65536-FOSC/1000) //1T模式
WORD c=0,valv=0,vali=0;
bit flag=0, ack,flag1=0 ;
int HL,TL,dat_v,HLi,TLi,dat_i=1000;
sbit led=P5^4;
sbit SDA=P3^5;
sbit SCL=P3^7;
sbit key=P3^2;
#define DS3231_WriteAddress 0xD0 //器件写地址
#define DS3231_ReadAddress 0xD1 //器件读地址
#define DS3231_SECOND 0x00 //秒
#define DS3231_MINUTE 0x01 //分
#define DS3231_HOUR 0x02 //时
#define DS3231_WEEK 0x03 //星期
#define DS3231_DAY 0x04 //日
#define DS3231_MONTH 0x05 //月
#define DS3231_YEAR 0x06 //年
//闹铃1
#define DS3231_SALARM1ECOND 0x07 //秒
#define DS3231_ALARM1MINUTE 0x08 //分
#define DS3231_ALARM1HOUR 0x09 //时
#define DS3231_ALARM1WEEK 0x0A //星期/日
//闹铃2
#define DS3231_ALARM2MINUTE 0x0b //分
#define DS3231_ALARM2HOUR 0x0c //时
#define DS3231_ALARM2WEEK 0x0d //星期/日
#define DS3231_CONTROL 0x0e //控制寄存器
#define DS3231_STATUS 0x0f //状态寄存器
#define BSY 2 //忙
#define OSF 7 //振荡器停止标志
#define DS3231_XTAL 0x10 //晶体老化寄存器
#define DS3231_TEMPERATUREH 0x11 //温度寄存器高字节(8位)
#define DS3231_TEMPERATUREL 0x12 //温度寄存器低字节(高2位)
uchar data dis_buf[8];
uchar data dis_index;
uchar data dis_digit;
/*Define ADC operation const for ADC_CONTR*/
#define ADC_POWER 0x80 //ADC电源控制位
#define ADC_FLAG 0x10 //ADC完成标志
#define ADC_START 0x08 //ADC起始控制位
#define ADC_SPEEDLL 0x00 //540个时钟
#define ADC_SPEEDL 0x20 //360个时钟
#define ADC_SPEEDH 0x40 //180个时钟
#define ADC_SPEEDHH 0x60 //90个时钟
#define ADC_P10 0x01 //IO引脚 Px.0
#define ADC_P11 0x02 //IO引脚 Px.1
#define ADC_P12 0x04 //IO引脚 Px.2
#define ADC_P13 0x08 //IO引脚 Px.3
#define ADC_P14 0x10 //IO引脚 Px.4
#define ADC_P15 0x20 //IO引脚 Px.5
#define ADC_P16 0x40 //IO引脚 Px.6
#define ADC_P17 0x80 //IO引脚 Px.7
#define ADC_P1_All 0xFF //IO所有引脚
//-----------------------------------------------
void InitADC();
BYTE GetADCResult(BYTE ch);
void Delay(WORD n);
BYTE GetADCResult(BYTE ch)
{
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ch | ADC_START; //ADC电源，转换时间，通道，ADC打开
_nop_(); //等待4个NOP
_nop_();
_nop_();
_nop_();
while (!(ADC_CONTR & ADC_FLAG));//等待ADC转换完成
ADC_CONTR &= ~ADC_FLAG; //Close ADC
return ADC_RES; //返回ADC结果
}
void InitADC()
{
P1ASF =0x03; //设置P1口为AD口 设置P1.0和P1.1位AD口
ADC_RES = 0; //清除结果寄存器
ADC_CONTR = ADC_POWER | ADC_SPEEDLL;
Delay(2); //ADC上电并延时 //ADC power-on and delay
}
void Delay(WORD n)
{
WORD x;
while (n--)
{
x = 5000;
while (x--);
}
}
uchar BCD2HEX(uchar val) //BCD???Byte
{
uchar temp;
temp=val&0x0f;
val>>=4;
val&=0x0f;
val*=10;
temp+=val;
return temp;
}
uchar HEX2BCD(uchar val) //B????BCD?
{
uchar i,j,k;
i=val/10;
j=val%10;
k=j+(i<<4);
return k;
}
void delayus(WORD us)
{
_nop_();
_nop_();
while (us--);
}
void Start_I2C()
{
SDA=1; //???????????
delayus(3);
SCL=1;
delayus(27); //??????????4.7us,??
SDA=0; //??????
delayus(27); // ??????????4祍
SCL=0; //??I2C??,?????????
delayus(9);
}
void Stop_I2C()
{
SDA=0; //???????????
delayus(3); //???????????
SCL=1; //??????????4us
delayus(27);
SDA=1; //??I2C??????
delayus(21);
}
void SendByte(uchar c)
{
uchar BitCnt;
for(BitCnt=0;BitCnt<8;BitCnt++) //?????????8?
{
if((c<<BitCnt)&0x80)
SDA=1; //?????
else
SDA=0;
delayus(3);
SCL=1; //??????,????????????
delayus(27); //???????????4祍
SCL=0;
}
delayus(9);
SDA=1; //8??????????,???????
delayus(9);
SCL=1;
delayus(15);
if(SDA==1)
ack=0;
else
ack=1; //???????????
SCL=0;
delayus(9);
}
uchar RcvByte()
{
uchar retc;
uchar BitCnt;
retc=0;
SDA=1; //?????????
for(BitCnt=0;BitCnt<8;BitCnt++)
{
delayus(3);
SCL=0; //??????,???????
delayus(27); //?????????4.7祍
SCL=1; //???????????????
delayus(15);
retc=retc<<1;
if(SDA==1)
retc=retc+1; //????,????????retc?
delayus(9);
}
SCL=0;
delayus(9);
return(retc);
}
void Ack_I2C(bit a)
{
if(a==0)
SDA=0; //????????????
else
SDA=1;
delayus(15);
SCL=1;
delayus(27); //?????????4祍
SCL=0; //????,??I2C????????
delayus(9);
}
uchar write_byte(uchar addr, uchar write_data)
{
Start_I2C();
SendByte(DS3231_WriteAddress);
if (ack == 0)
return 0;
SendByte(addr);
if (ack == 0)
return 0;
SendByte(write_data);
if (ack == 0)
return 0;
Stop_I2C();
delayus(57);
return 1;
}
uchar read_current()
{
uchar read_data;
Start_I2C();
SendByte(DS3231_ReadAddress);
if(ack==0)
return(0);
read_data = RcvByte();
Ack_I2C(1);
Stop_I2C();
return read_data;
}
uchar read_random(uchar random_addr)
{
Start_I2C();
SendByte(DS3231_WriteAddress);
if(ack==0)
return(0);
SendByte(random_addr);
if(ack==0)
return(0);
return(read_current());
}
void ModifyTime(uchar yea,uchar mon,uchar da,uchar hou,uchar min,uchar sec)
{
uchar temp=0;
temp=HEX2BCD(yea);
write_byte(DS3231_YEAR,temp); //???
temp=HEX2BCD(mon);
write_byte(DS3231_MONTH,temp); //???
temp=HEX2BCD(da);
write_byte(DS3231_DAY,temp); //???
temp=HEX2BCD(hou);
write_byte(DS3231_HOUR,temp); //???
temp=HEX2BCD(min);
write_byte(DS3231_MINUTE,temp); //???
temp=HEX2BCD(sec);
write_byte(DS3231_SECOND,temp); //???
}
void get_show_time(void) //显示时间
{
uchar Htemp1,Htemp2,Mtemp1,Mtemp2,Stemp1,Stemp2;
Htemp1=read_random(DS3231_HOUR); //? 24???
Htemp1&=0x3f;
Htemp2=BCD2HEX(Htemp1);
Mtemp1=read_random(DS3231_MINUTE); //?
Mtemp2=BCD2HEX(Mtemp1);
Stemp1=read_random(DS3231_SECOND); //?
Stemp2=BCD2HEX(Stemp1);
LCD_Show2Num(0,96,Htemp2,2);
LCD_Show2Num(32,96,Mtemp2,2);
LCD_Show2Num(64,96,Stemp2,2);
}
void get_show_date(void) //显示年月日
{
uchar Ytemp1,Ytemp2,Mtemp1,Mtemp2,Dtemp1,Dtemp2;
Ytemp1=read_random(DS3231_YEAR); //?
Ytemp2=BCD2HEX(Ytemp1);
Mtemp1=read_random(DS3231_MONTH); //?
Mtemp2=BCD2HEX(Mtemp1);
Dtemp1=read_random(DS3231_DAY); //?
Dtemp2=BCD2HEX(Dtemp1);
LCD_Show2Num(16,114,Ytemp2,2);
LCD_Show2Num(48,114,Mtemp2,2);
LCD_Show2Num(80,114,Dtemp2,2);
}
void get_show_Temperature(void) //温度数据
{
uchar Ttemp1,Ttemp_L,Ttemp3,Ttemp_H;
Ttemp1=read_random(DS3231_TEMPERATUREH); //温度高位
Ttemp_H=Ttemp1;
Ttemp3=read_random(DS3231_TEMPERATUREL); //温度地位
Ttemp_L=(Ttemp3>>6)*25;
if(Ttemp_H&0x80)
{
flag1=1;
Ttemp_H=Ttemp_H||0x7f;
}
else
flag1=0;
if(flag1==1)
LCD_ShowString(40,130,"-") ;
else
LCD_ShowString(40,130," ") ;
LCD_Show2Num(48,130,Ttemp_H,2);
LCD_ShowString(64,130,".") ;
LCD_Show2Num(72,130,Ttemp_L,2);
}
void init() //串口以及定时器初始化程序
{
SCON = 0x50; //8位可变波特率
T2L = (65536 - (FOSC/4/BAUD)); //设置波特率重装值
T2H = (65536 - (FOSC/4/BAUD))>>8;
AUXR = 0x14; //T2为1T模式, 并启动定时器2
// AUXR |= 0x01; //选择定时器2为串口1的波特率发生器
AUXR |= 0x81; //定时器0为1T模式
// AUXR &= 0x7f; //定时器0为12T模式
TMOD = 0x00; //设置定时器为模式0(16位自动重装载)
TL0 = T1MS; //初始化计时值
TH0 = T1MS >> 8;
TR0 = 1; //定时器0开始计时
ET0 = 1; //使能定时器0中断
ES = 1; //使能串口1中断 刚开机的时候关闭串口中断防止串口有数据唤醒单片机
EA = 1;
}
void tm0_isr() interrupt 1 using 1 //1MS中断程序
{
c++;
if(c==10)
{
flag=1;
c=0;
}
}
void dat_bat() //温湿度以及PM2.5程序处理程序
{
HL=GetADCResult(0);
TL=ADC_LOW2;
HL<<=2;
dat_v=HL|TL;
HLi=GetADCResult(1);
TLi=ADC_LOW2;
HLi<<=2;
dat_i=HLi|TLi;
vali=dat_i*5*4.65/1.024;
valv=dat_v*5*0.755/1.024;
}
void lcd_aux_init()
{
showhanzi16(0,16,0); //
showhanzi16(16,16,1); //
LCD_ShowString(32,16,":") ;
/////////////////////////
LCD_ShowString(96,16,"mV") ;
showhanzi16(0,32,0); //
showhanzi16(16,32,10); //
LCD_ShowString(32,32,":") ;
//////////////////////////
LCD_ShowString(80,32,"mA") ;
LCD_ShowString(0,64,"DC SOURCE ") ;
LCD_ShowString(0,80,"1-12V 0-3A") ;
LCD_Show2Num(0,114,20,2);// 年月日
showhanzi16(32,114,24);
showhanzi16(64,114,25);
showhanzi16(96,114,26);
showhanzi16(0,130,20); //温度参数
showhanzi16(16,130,21);
LCD_ShowString(32,130,":") ;
LCD_ShowString(16,96,":") ; //时间参数
LCD_ShowString(48,96,":") ;
}
void show_time()
{
LCD_Show2Num(48,16,vali,5);
LCD_Show2Num(48,32,valv,4);
}
main()
{
char ii=3;
Lcd_Init(); //tft初始化
init();
LCD_Clear(WHITE); //清屏
InitADC();
BACK_COLOR=WHITE ;
POINT_COLOR=BLACK ;
lcd_aux_init();
while(1)
{
if(flag==1) //50ms更新一次数据
{
dat_bat();
flag=0;
get_show_date(); //????
get_show_Temperature(); //????
get_show_time();
}
show_time();
if(key==0)
ModifyTime(17,3,23,14,05,00);
while(!key);
led=~led;
}
}
做了一个DC电源，加上这个时钟芯片驱动
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