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標題: DS3231時鐘芯片驅(qū)動資料 [打印本頁]

作者: wangbo0727 時間: 2017-12-29 16:46
標題: DS3231時鐘芯片驅(qū)動資料
#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 //系統(tǒng)頻率
#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 //器件寫地址
#define DS3231_ReadAddress 0xD1 //器件讀地址
#define DS3231_SECOND 0x00 //秒
#define DS3231_MINUTE 0x01 //分
#define DS3231_HOUR 0x02 //時
#define DS3231_WEEK 0x03 //星期
#define DS3231_DAY 0x04 //日
#define DS3231_MONTH 0x05 //月
#define DS3231_YEAR 0x06 //年
//鬧鈴1
#define DS3231_SALARM1ECOND 0x07 //秒
#define DS3231_ALARM1MINUTE 0x08 //分
#define DS3231_ALARM1HOUR 0x09 //時
#define DS3231_ALARM1WEEK 0x0A //星期/日
//鬧鈴2
#define DS3231_ALARM2MINUTE 0x0b //分
#define DS3231_ALARM2HOUR 0x0c //時
#define DS3231_ALARM2WEEK 0x0d //星期/日
#define DS3231_CONTROL 0x0e //控制寄存器
#define DS3231_STATUS 0x0f //狀態(tài)寄存器
#define BSY 2 //忙
#define OSF 7 //振蕩器停止標志
#define DS3231_XTAL 0x10 //晶體老化寄存器
#define DS3231_TEMPERATUREH 0x11 //溫度寄存器高字節(jié)(8位)
#define DS3231_TEMPERATUREL 0x12 //溫度寄存器低字節(jié)(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電源控制位
#define ADC_FLAG 0x10 //ADC完成標志
#define ADC_START 0x08 //ADC起始控制位
#define ADC_SPEEDLL 0x00 //540個時鐘
#define ADC_SPEEDL 0x20 //360個時鐘
#define ADC_SPEEDH 0x40 //180個時鐘
#define ADC_SPEEDHH 0x60 //90個時鐘
#define ADC_P10 0x01 //IO引腳 Px.0
#define ADC_P11 0x02 //IO引腳 Px.1
#define ADC_P12 0x04 //IO引腳 Px.2
#define ADC_P13 0x08 //IO引腳 Px.3
#define ADC_P14 0x10 //IO引腳 Px.4
#define ADC_P15 0x20 //IO引腳 Px.5
#define ADC_P16 0x40 //IO引腳 Px.6
#define ADC_P17 0x80 //IO引腳 Px.7
#define ADC_P1_All 0xFF //IO所有引腳
//-----------------------------------------------
void InitADC();
BYTE GetADCResult(BYTE ch);
void Delay(WORD n);
BYTE GetADCResult(BYTE ch)
{
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ch | ADC_START; //ADC電源，轉(zhuǎn)換時間，通道，ADC打開
_nop_(); //等待4個NOP
_nop_();
_nop_();
_nop_();
while (!(ADC_CONTR & ADC_FLAG));//等待ADC轉(zhuǎn)換完成
ADC_CONTR &= ~ADC_FLAG; //Close ADC
return ADC_RES; //返回ADC結(jié)果
}
void InitADC()
{
P1ASF =0x03; //設(shè)置P1口為AD口 設(shè)置P1.0和P1.1位AD口
ADC_RES = 0; //清除結(jié)果寄存器
ADC_CONTR = ADC_POWER | ADC_SPEEDLL;
Delay(2); //ADC上電并延時 //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) //顯示時間
{
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) //顯示年月日
{
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) //溫度數(shù)據(jù)
{
uchar Ttemp1,Ttemp_L,Ttemp3,Ttemp_H;

Ttemp1=read_random(DS3231_TEMPERATUREH); //溫度高位
Ttemp_H=Ttemp1;

Ttemp3=read_random(DS3231_TEMPERATUREL); //溫度地位
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() //串口以及定時器初始化程序
{
SCON = 0x50; //8位可變波特率
T2L = (65536 - (FOSC/4/BAUD)); //設(shè)置波特率重裝值
T2H = (65536 - (FOSC/4/BAUD))>>8;
AUXR = 0x14; //T2為1T模式, 并啟動定時器2
// AUXR |= 0x01; //選擇定時器2為串口1的波特率發(fā)生器
AUXR |= 0x81; //定時器0為1T模式
// AUXR &= 0x7f; //定時器0為12T模式
TMOD = 0x00; //設(shè)置定時器為模式0(16位自動重裝載)
TL0 = T1MS; //初始化計時值
TH0 = T1MS >> 8;
TR0 = 1; //定時器0開始計時
ET0 = 1; //使能定時器0中斷
ES = 1; //使能串口1中斷剛開機的時候關(guān)閉串口中斷防止串口有數(shù)據(jù)喚醒單片機
EA = 1;
}
void tm0_isr() interrupt 1 using 1 //1MS中斷程序
{
c++;
if(c==10)
{
flag=1;
c=0;
}
}
void dat_bat() //溫濕度以及PM2.5程序處理程序
{
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); //溫度參數(shù)
 showhanzi16(16,130,21);
 LCD_ShowString(32,130,":") ;

LCD_ShowString(16,96,":") ; //時間參數(shù)
 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更新一次數(shù)據(jù)
{
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;
 }

}

做了一個DC電源，加上這個時鐘芯片驅(qū)動

12V3ADC-DC DS3231.rar

159.99 KB, 下載次數(shù): 23, 下載積分: 黑幣 -5

LCD加上時鐘芯片驅(qū)動

作者: 1113634577 時間: 2018-12-26 07:08
名稱該是采集顯示時間溫度程序PM2,5時間溫度采用DS3231

歡迎光臨 (http://www.zg4o1577.cn/bbs/)

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