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Temperature measurement and display of 51 single chip microcomputer [simulation]
2022-07-02 23:10:00 【The universe is hidden in the book】
#include <REG52.H>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
sbit DS1302_CLK = P1^7; // Real time clock clock line pin
sbit DS1302_IO = P1^6; // Real time clock data line pin
sbit DS1302_RST = P1^5; // Real time clock reset line pin
sbit wireless_1 = P3^0;
sbit wireless_2 = P3^1;
sbit wireless_3 = P3^2;
sbit wireless_4 = P3^3;
sbit ACC0 = ACC^0 // Accumulator definition
sbit ACC7 = ACC^7;
char hide_sec,hide_min,hide_hour,hide_day,hide_week,hide_month,hide_year; // second , branch , Time to day , month , The number of year blinks
sbit Set = P2^0; // Mode switch key
sbit Up = P2^1; // Add button
sbit Down = P2^2; // Subtraction button
sbit out = P2^3; // Immediately jump out of the adjustment mode button
sbit DQ = P1^0; // Temperature transmits data IO mouth
char done,count,temp,flag,up_flag,down_flag;
uchar temp_value; // Temperature value
uchar TempBuffer[5],week_value[2];
void show_time(); // LCD program
/***********1602 LCD part subroutine ****************/
//Port Definitions**********************************************************
sbit LcdRs = P2^5;
sbit LcdRw = P2^6;
sbit LcdEn = P2^7;
sfr DBPort = 0x80; //P0=0x80,P1=0x90,P2=0xA0,P3=0xB0. Data port
// Internal wait function **************************************************************************
unsigned char LCD_Wait(void)
{
LcdRs=0;
LcdRw=1; _nop_();
LcdEn=1; _nop_();
LcdEn=0;
return DBPort;
}
// towards LCD Write command or data ************************************************************
#define LCD_COMMAND 0 // Command
#define LCD_DATA 1 // Data
#define LCD_CLEAR_SCREEN 0x01 // Clear the screen 0000 0001
#define LCD_HOMING 0x02 // The cursor returns to the origin 0000 0010
void LCD_Write(bit style, unsigned char input)
{
LcdEn=0;
LcdRs=style;
LcdRw=0; _nop_();
DBPort=input; _nop_();// Order of attention
LcdEn=1; _nop_();// Order of attention
LcdEn=0; _nop_();
LCD_Wait();
}
// Set the display mode ************************************************************
#define LCD_SHOW 0x04 // Show on 0000 0100
#define LCD_HIDE 0x00 // Show off 0000 0000
#define LCD_CURSOR 0x02 // Show cursor 0000 0010
#define LCD_NO_CURSOR 0x00 // No cursor 0000 0000
#define LCD_FLASH 0x01 // The cursor flashes 0000 0001
#define LCD_NO_FLASH 0x00 // The cursor doesn't flash
void LCD_SetDisplay(unsigned char DisplayMode)
{
LCD_Write(LCD_COMMAND, 0x08|DisplayMode);
}
// Set input mode ************************************************************
#define LCD_AC_UP 0x02
#define LCD_AC_DOWN 0x00 // default
#define LCD_MOVE 0x01 // The picture is translatable
#define LCD_NO_MOVE 0x00 //default
void LCD_SetInput(unsigned char InputMode)
{
LCD_Write(LCD_COMMAND, 0x04|InputMode);//00000100 And inputMode To perform bitwise operations
}
// initialization LCD************************************************************
void LCD_Initial()
{
LcdEn=0;
LCD_Write(LCD_COMMAND,0x38); //8 Bit data port ,2 Row display ,5*7 Lattice
LCD_Write(LCD_COMMAND,0x38);
LCD_SetDisplay(LCD_SHOW|LCD_NO_CURSOR); // Turn on the display , No cursor
LCD_Write(LCD_COMMAND,LCD_CLEAR_SCREEN); // Clear the screen
LCD_SetInput(LCD_AC_UP|LCD_NO_MOVE); //AC Increasing , The picture doesn't move
}
// LCD character input position ************************
void GotoXY(unsigned char x, unsigned char y)
{
if(y==0)
LCD_Write(LCD_COMMAND,0x80|x);
if(y==1)
LCD_Write(LCD_COMMAND,0x80|(x-0x40));
}
// Output the characters to the LCD
void Print(unsigned char *str)
{
while(*str!='\0')
{
LCD_Write(LCD_DATA,*str);
str++;
}
}
/***********DS1302 Clock part subroutine ******************/
typedef struct __SYSTEMTIME__
{
unsigned char Second;
unsigned char Minute;
unsigned char Hour;
unsigned char Week;
unsigned char Day;
unsigned char Month;
unsigned char Year;
unsigned char DateString[11];
unsigned char TimeString[9];
}SYSTEMTIME; // Defined time type
SYSTEMTIME CurrentTime;
#define AM(X) X
#define PM(X) (X+12) // Turn into 24 hourly
#define DS1302_SECOND 0x80 // The register position of the clock chip , Storage time
#define DS1302_MINUTE 0x82
#define DS1302_HOUR 0x84
#define DS1302_WEEK 0x8A
#define DS1302_DAY 0x86
#define DS1302_MONTH 0x88
#define DS1302_YEAR 0x8C
void DS1302InputByte(unsigned char d) // Real time clock writes a byte ( Internal function )
{
unsigned char i;
ACC = d;
for(i=8; i>0; i--)
{
DS1302_IO = ACC0; // It's equivalent to... In an assembly RRC
DS1302_CLK = 1;
DS1302_CLK = 0;
ACC = ACC >> 1;
}
}
unsigned char DS1302OutputByte(void) // Real time clock reads a byte ( Internal function )
{
unsigned char i;
for(i=8; i>0; i--)
{
ACC = ACC >>1; // It's equivalent to... In an assembly RRC
ACC7 = DS1302_IO;
DS1302_CLK = 1;
DS1302_CLK = 0;
}
return(ACC);
}
void Write1302(unsigned char ucAddr, unsigned char ucDa) //ucAddr: DS1302 Address , ucData: Data to write
{
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr); // Address , command
DS1302InputByte(ucDa); // Write 1Byte data
DS1302_CLK = 1;
DS1302_RST = 0;
}
unsigned char Read1302(unsigned char ucAddr) // Read DS1302 Data of an address
{
unsigned char ucData;
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr|0x01); // Address , command
ucData = DS1302OutputByte(); // read 1Byte data
DS1302_CLK = 1;
DS1302_RST = 0;
return(ucData);
}
void DS1302_GetTime(SYSTEMTIME *Time) // Get clock data of clock chip to custom structure array
{
unsigned char ReadValue;
ReadValue = Read1302(DS1302_SECOND);
Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_MINUTE);
Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_HOUR);
Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_DAY);
Time->Day = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_WEEK);
Time->Week = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_MONTH);
Time->Month = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_YEAR);
Time->Year = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
}
void DateToStr(SYSTEMTIME *Time) // It will take years , month , Japan , Week data is converted to LCD string , Put it in the array DateString[]
{
if(hide_year<2) // there if,else All statements are blinking judgment bits ,<2 Display the data ,>2 Do not show , The output string is 2007/07/22
{
Time->DateString[0] = '2';
Time->DateString[1] = '0';
Time->DateString[2] = Time->Year/10 + '0';
Time->DateString[3] = Time->Year%10 + '0';
}
else
{
Time->DateString[0] = ' ';
Time->DateString[1] = ' ';
Time->DateString[2] = ' ';
Time->DateString[3] = ' ';
}
Time->DateString[4] = '/';
if(hide_month<2)
{
Time->DateString[5] = Time->Month/10 + '0';
Time->DateString[6] = Time->Month%10 + '0';
}
else
{
Time->DateString[5] = ' ';
Time->DateString[6] = ' ';
}
Time->DateString[7] = '/';
if(hide_day<2)
{
Time->DateString[8] = Time->Day/10 + '0';
Time->DateString[9] = Time->Day%10 + '0';
}
else
{
Time->DateString[8] = ' ';
Time->DateString[9] = ' ';
}
if(hide_week<2)
{
week_value[0] = Time->Week%10 + '0'; // The data of the week is put in separately week_value[] In the array , The following year , month , Separate storage of the day , Because wait a minute and show at the end
}
else
{
week_value[0] = ' ';
}
week_value[1] = '\0';
Time->DateString[10] = '\0'; // Add... At the end of the string '\0' , Judge the ending character
}
void TimeToStr(SYSTEMTIME *Time) // When will be , branch , Second data is converted into LCD characters and put into array TimeString[];
{
if(hide_hour<2)
{
Time->TimeString[0] = Time->Hour/10 + '0';
Time->TimeString[1] = Time->Hour%10 + '0';
}
else
{
Time->TimeString[0] = ' ';
Time->TimeString[1] = ' ';
}
Time->TimeString[2] = ':';
if(hide_min<2)
{
Time->TimeString[3] = Time->Minute/10 + '0';
Time->TimeString[4] = Time->Minute%10 + '0';
}
else
{
Time->TimeString[3] = ' ';
Time->TimeString[4] = ' ';
}
Time->TimeString[5] = ':';
if(hide_sec<2)
{
Time->TimeString[6] = Time->Second/10 + '0';
Time->TimeString[7] = Time->Second%10 + '0';
}
else
{
Time->TimeString[6] = ' ';
Time->TimeString[7] = ' ';
}
Time->DateString[8] = '\0';
}
void Initial_DS1302(void) // Clock chip initialization
{
unsigned char Second=Read1302(DS1302_SECOND);
if(Second&0x80) // Determine whether the clock chip is off
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x8c,0x12); // The following write initialization time date :12/05/14. week : 1. Time : 23:59:55
Write1302(0x88,0x05);
Write1302(0x86,0x14);
Write1302(0x8a,0x01);
Write1302(0x84,0x23);
Write1302(0x82,0x59);
Write1302(0x80,0x55);
Write1302(0x8e,0x80); // Writing is prohibited
}
}
/***********ds18b20 Subroutines *************************/
/***********ds18b20 Delay subfunctions （ Crystal oscillator 12MHz ）*******/
void delay_18B20(unsigned int i)
{
while(i--);
}
/**********ds18b20 Initialization function **********************/
void Init_DS18B20(void)
{
unsigned char x=0;
DQ = 1; //DQ Reset
delay_18B20(8); // Delay a little
DQ = 0; // The MCU will DQ Pull it down
delay_18B20(80); // Precise delay Greater than 480us
DQ = 1; // Pull up the bus
delay_18B20(14);
x=DQ; // After a little delay If x=0 The initialization is successful x=1 Initialization fails
delay_18B20(20);
}
/***********ds18b20 Read a byte **************/
unsigned char ReadOneChar(void)
{
uchar i=0;
uchar dat = 0;
for (i=8;i>0;i--)
{
DQ = 0; // Give a pulse signal
dat>>=1;
DQ = 1; // Give a pulse signal
if(DQ)
dat|=0x80;
delay_18B20(4);
}
return(dat);
}
/*************ds18b20 Write a byte ****************/
void WriteOneChar(uchar dat)
{
unsigned char i=0;
for (i=8; i>0; i--)
{
DQ = 0;
DQ = dat&0x01;
delay_18B20(5);
DQ = 1;
dat>>=1;
}
}
/************** Read ds18b20 Current temperature ************/
void ReadTemp(void)
{
unsigned char a=0;
unsigned char b=0;
unsigned char t=0;
Init_DS18B20();
WriteOneChar(0xCC); // Skip reading the sequence number
WriteOneChar(0x44); // Start the temperature conversion
delay_18B20(100); // this message is wery important
Init_DS18B20();
WriteOneChar(0xCC); // Skip reading the sequence number
WriteOneChar(0xBE); // Read temperature register, etc （ Read together 9 A register ） The first two are temperature
delay_18B20(100);
a=ReadOneChar(); // Read the low temperature value
b=ReadOneChar(); // Read the high temperature value
temp_value=b<<4;
temp_value+=(a&0xf0)>>4;
}
void temp_to_str() // Temperature data is converted to LCD character display
{
TempBuffer[0]=temp_value/10+'0'; // ten
TempBuffer[1]=temp_value%10+'0'; // bits
TempBuffer[2]=0xdf; // Temperature symbol
TempBuffer[3]='C';
TempBuffer[4]='\0';
}
void Delay1ms(unsigned int count)
{
unsigned int i,j;
for(i=0;i<count;i++)
for(j=0;j<120;j++);
}
/* Delay subroutine */
void mdelay(uint delay)
{
uint i;
for(;delay>0;delay--)
{
for(i=0;i<62;i++) //1ms Time delay .
{
;}
}
}
void outkey() // Jump out of adjustment mode , Return to the default display
{
uchar Second;
if(out==0||wireless_1==1)
{
mdelay(8);
count=0;
hide_sec=0,hide_min=0,hide_hour=0,hide_day=0,hide_week=0,hide_month=0,hide_year=0;
Second=Read1302(DS1302_SECOND);
Write1302(0x8e,0x00); // Write allows
Write1302(0x80,Second&0x7f);
Write1302(0x8E,0x80); // Writing is prohibited
done=0;
while(out==0);
while(wireless_1==1);
}
}
void Upkey()// Ascending key
{
Up=1;
if(Up==0||wireless_2==1)
{
mdelay(8);
switch(count)
{
case 1:
temp=Read1302(DS1302_SECOND); // Read seconds
temp=temp+1; // Seconds plus 1
up_flag=1; // Update flag after data adjustment
if((temp&0x7f)>0x59) // exceed 59 second , Zero clearing
temp=0;
break;
case 2:
temp=Read1302(DS1302_MINUTE); // Read scores
temp=temp+1; // Score plus 1
up_flag=1;
if(temp>0x59) // exceed 59 branch , Zero clearing
temp=0;
break;
case 3:
temp=Read1302(DS1302_HOUR); // Reading hours
temp=temp+1; // Hours plus 1
up_flag=1;
if(temp>0x23) // exceed 23 Hours , Zero clearing
temp=0;
break;
case 4:
temp=Read1302(DS1302_WEEK); // Read the number of weeks
temp=temp+1; // Weeks plus 1
up_flag=1;
if(temp>0x7)
temp=1;
break;
case 5:
temp=Read1302(DS1302_DAY); // Read days
temp=temp+1; // Days plus 1
up_flag=1;
if(temp>0x31)
temp=1;
break;
case 6:
temp=Read1302(DS1302_MONTH); // Read months
temp=temp+1; // Months plus 1
up_flag=1;
if(temp>0x12)
temp=1;
break;
case 7:
temp=Read1302(DS1302_YEAR); // Read years
temp=temp+1; // Years plus 1
up_flag=1;
if(temp>0x85)
temp=0;
break;
default:break;
}
while(Up==0);
while(wireless_2==1);
}
}
void Downkey()// Down key
{
Down=1;
if(Down==0||wireless_3==1)
{
mdelay(8);
switch(count)
{
case 1:
temp=Read1302(DS1302_SECOND); // Read seconds
temp=temp-1; // Seconds minus 1
down_flag=1; // Update flag after data adjustment
if(temp==0x7f) // Less than 0 second , return 59 second
temp=0x59;
break;
case 2:
temp=Read1302(DS1302_MINUTE); // Read scores
temp=temp-1; // Score minus 1
down_flag=1;
if(temp==-1)
temp=0x59; // Less than 0 second , return 59 second
break;
case 3:
temp=Read1302(DS1302_HOUR); // Reading hours
temp=temp-1; // Hours minus 1
down_flag=1;
if(temp==-1)
temp=0x23;
break;
case 4:
temp=Read1302(DS1302_WEEK); // Read the number of weeks
temp=temp-1; // Weeks minus 1
down_flag=1;
if(temp==0)
temp=0x7;;
break;
case 5:
temp=Read1302(DS1302_DAY); // Read days
temp=temp-1; // Days are reduced 1
down_flag=1;
if(temp==0)
temp=31;
break;
case 6:
temp=Read1302(DS1302_MONTH); // Read months
temp=temp-1; // Months minus 1
down_flag=1;
if(temp==0)
temp=12;
break;
case 7:
temp=Read1302(DS1302_YEAR); // Read years
temp=temp-1; // Years are reduced 1
down_flag=1;
if(temp==-1)
temp=0x85;
break;
default:break;
}
while(Down==0);
while(wireless_3==1);
}
}
void Setkey()// Mode selection button
{
Set=1;
if(Set==0||wireless_4==1)
{
mdelay(8);
count=count+1; //Setkey Press once ,count Just add 1
done=1; // Enter adjustment mode
while(Set==0);
while(wireless_4==1);
}
}
void keydone()// Key function execution
{
uchar Second;
if(flag==0) // Turn off the clock , Stop timing
{
Write1302(0x8e,0x00); // Write allows
temp=Read1302(0x80);
Write1302(0x80,temp|0x80);
Write1302(0x8e,0x80); // Writing is prohibited
flag=1;
}
Setkey(); // Switch key scan mode
switch(count)
{
case 1:do //count=1, Adjust the second
{
outkey(); // Scan out button
Upkey(); // Scan plus button
Downkey(); // Scan minus button
if(up_flag==1||down_flag==1) // Data update , Re write new data
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x80,temp|0x80); // Write a new number of seconds
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_sec++; // Bit flash count
if(hide_sec>3)
hide_sec=0;
show_time(); // LCD data
}while(count==2);break;
case 2:do //count=2, Adjust the score
{
hide_sec=0;
outkey();
Upkey();
Downkey();
if(temp>0x60)
temp=0;
if(up_flag==1||down_flag==1)
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x82,temp); // Write a new score
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_min++;
if(hide_min>3)
hide_min=0;
show_time();
}while(count==3);break;
case 3:do //count=3, Adjust the hours
{
hide_min=0;
outkey();
Upkey();
Downkey();
if(up_flag==1||down_flag==1)
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x84,temp); // Write new hours
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_hour++;
if(hide_hour>3)
hide_hour=0;
show_time();
}while(count==4);break;
case 4:do //count=4, Adjust the week
{
hide_hour=0;
outkey();
Upkey();
Downkey();
if(up_flag==1||down_flag==1)
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x8a,temp); // Write the new week number
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_week++;
if(hide_week>3)
hide_week=0;
show_time();
}while(count==5);break;
case 5:do //count=5, Adjustment day
{
hide_week=0;
outkey();
Upkey();
Downkey();
if(up_flag==1||down_flag==1)
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x86,temp); // Write a new number of days
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_day++;
if(hide_day>3)
hide_day=0;
show_time();
}while(count==6);break;
case 6:do //count=6, Adjust the month
{
hide_day=0;
outkey();
Upkey();
Downkey();
if(up_flag==1||down_flag==1)
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x88,temp); // Write a new number of months
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_month++;
if(hide_month>3)
hide_month=0;
show_time();
}while(count==7);break;
case 7:do //count=7, Adjustment year
{
hide_month=0;
outkey();
Upkey();
Downkey();
if(up_flag==1||down_flag==1)
{
Write1302(0x8e,0x00); // Write allows
Write1302(0x8c,temp); // Write a new number of years
Write1302(0x8e,0x80); // Writing is prohibited
up_flag=0;
down_flag=0;
}
hide_year++;
if(hide_year>3)
hide_year=0;
show_time();
}while(count==8);break;
case 8: count=0;hide_year=0; //count8, Jump out of adjustment mode , Return to the default display state
Second=Read1302(DS1302_SECOND);
Write1302(0x8e,0x00); // Write allows
Write1302(0x80,Second&0x7f);
Write1302(0x8E,0x80); // Writing is prohibited
done=0;
break; //count=7, Open interrupt , Logo location 0 And exit
default:break;
}
}
void show_time() // LCD program
{
DS1302_GetTime(&CurrentTime); // Get the time data of the clock chip
TimeToStr(&CurrentTime); // Time data conversion LCD character
DateToStr(&CurrentTime); // Date data conversion LCD character
ReadTemp(); // Open the temperature acquisition program
temp_to_str(); // Temperature data is converted into liquid crystal characters
GotoXY(12,1); // LCD character display position
Print(TempBuffer); // Show the temperature
GotoXY(0,1);
Print(CurrentTime.TimeString); // Display time
GotoXY(0,0);
Print(CurrentTime.DateString); // Show date
GotoXY(15,0);
Print(week_value); // Show week
GotoXY(11,0);
Print("Week"); // On a liquid crystal Letter week
Delay1ms(400); // Scan delay
}
main()
{
flag=1; // Clock stop sign
LCD_Initial(); // LCD initialization
Init_DS18B20( ) ; //DS18B20 initialization
Initial_DS1302(); // Clock chip initialization
up_flag=0;
down_flag=0;
done=0; // Enter the default LCD display
wireless_1=0;
wireless_2=0;
wireless_3=0;
wireless_4=0;
while(1)
{
while(done==1)
keydone(); // Enter adjustment mode
while(done==0)
{
show_time(); // LCD data
flag=0;
Setkey(); // Scan the function keys
}
}
}
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密码技术---分组密码的模式
Motivation du Protocole de chiffrement avancé AES
PotPlayer设置最小化的快捷键
随机推荐
Odoo13 build a hospital HRP environment (detailed steps)
用matlab调用vs2015来编译vs工程
AES高级加密协议的动机阐述
Xshell configuration xforward forwarding Firefox browser
Explain promise usage in detail
2016. 增量元素之间的最大差值
P7072 [csp-j2020] live broadcast Award
How does Jerry test the wrong touch rate of keys [chapter]
[npuctf2020]ezlogin XPath injection
Ping domain name error unknown host, NSLOOKUP / system d-resolve can be resolved normally, how to Ping the public network address?
ping域名报错unknown host，nslookup/systemd-resolve可以正常解析，ping公网地址通怎么解决？
移动端 1px 像素兼容性问题，实现1px 边框
Jerry's prototype has no touch, and the reinstallation becomes normal after dismantling [chapter]
Tronapi wave field interface - source code without encryption - can be opened twice - interface document attached - packaging based on thinkphp5 - detailed guidance of the author - July 1, 2022 08:43:
景联文科技低价策略帮助AI企业降低模型训练成本
PMP project integration management
【喜欢的诗词】好了歌
损失函数~
To myself who is about to work
Redis expiration policy +conf record