lcd1602,4-bit data bus LCD clock, stc12c5a60s2 10-bit ADC function program

/* Program name:   lcd1602,4-bit data bus LCD clock, stc12c5a60s2 10-bit ADC function program writing time: October 4, 2015 hardware support: LCD1602 LCD screen    Stc12c5a60s2 external 12MHZ crystal oscillator   Wiring definition:   db7 --> p1^7              DB6 --> P1^6              DB5 --> P1^5              DB4 --> P1^5              RS  --> P3^2;              RW  --> P3^3;              E   --> P3^4;              ADC --> P1^0;  potentiometer voltage for 0--5v */#include  < Stc12c5a60s2. h> //Single chip head text#include <intrins.h> //51 basic operations (including _NOP_ empty functions) typedef unsigned char       uint8;          //  unsigned 8-bit integer variable  //# define lcm2402_db0_db7 p1  //  defines the LCM2402 data bus sbit lcm2402_rs   =  P3 ^ 2;   //  define LCM2402 's RS control line sbit lcm2402_rw   =  p3 ^ 3;   //  defines the RW control line for LCM2402 SBIT&NBSP;LCM2402_E&NBSP;&NBSP;&NBSP;&NBSP;=&NBSP;P3  ^ 4;   //  define LCM2402 's e control line sbit lcm2402_busy = p1 ^ 7;    //  define LCM2402 (associated with LCM2402_DB0_DB7) Data unsigned char time_dd,time_mo, time_yy,time_ww,time_hh,time_mm,time_ss;//set day, month, year, week, hours, minutes, seconds, and temperature storage area data bit day_bit = 0;// Number of days increase flag bit (for start of date carry) data unsigned char dis_bit = 0; //switch display of various information data unsigned  char cou  = 0;     //  Soft counter, add to 1s //  definition LCM2402 instruction set for 10ms time Base signal  //   (see Technical Manual for details) #define   CMD_clear 0x01             //  Clear Screen #define  cmd_back 0x02              // ddram back to 0-bit #define  cmd_dec1 0x04              //  ac (hands) minus 1 after reading, write left #define  cmd_add1  0x06             //  after reading AC (hands) plus 1, Write to the right #define  cmd_dis_gb1 0x0f          //   OPEN Cursor _ open cursor blinking #define  cmd_dis_gb2 0x0e           //  on display _ Open cursor _ off cursor blink #define  cmd_dis_gb3 0x0c           //&nbspOpen Display _ off cursor-off cursor blink #define  cmd_off_dis 0x08           //  off Show _ off cursor-off cursor blink #define  cmd_set82 0x38             // 8 bit bus _2 line display #define  cmd_set81 0x30             // 8 bit bus _1 line display (top row) #define   cmd_set42 0x28             // 4 bit bus _2 line display #define   Cmd_set41 0x20            // 4 Bit Bus _ 1 line display (top row) #define   lin_1  0x80                // 4-bit bus _1 line display (top row) #define   lin_2  0xc0                // 4-bit bus _1 line display (top row) #define    ct   2                     //  Write command, write data to  e   continuous milliseconds void delay_ms  (unsigned int a) {  Unsigned int i; while ( --a != 0) { for (i = 0; i <  600; i++)  }}// lcm2402, if the LCM2402 is busy, the function waits until the non-busy state  //void lcm2402_testbusy ( void) {    lcm2402_db0_db7 = 0xff; //device read State     lcm2402_rs  = 0;    LCM2402_RW = 1;    LCM2402_E =  1;    while (lcm2402_busy);  //wait for LCM not busy     LCM2402_E = 0;   //}//  Write command program  ////  write commands to LCM2402   This function requires 1 instruction set entry parameters  //void lcm2402_writecmd (Uint8 lcm2402_command)  {    lcm2402_testbusy ();    lcm2402_rs  = 0;  &nbsP lcm2402_rw = 0;   lcm2402_db0_db7 =  (LCM2402_COMMAND/16) <<4;//0x45  0x40     lcm2402_e = 1;    delay_ms (CT);     LCM2402_E = 0;   LCM2402_DB0_DB7 =  (LCM2402_COMMAND%16) <<4;//0x45 0x50   lcm2402_e = 1;    delay_ms (CT);     lcm2402_e = 0;}   Write data to LCM2402  //void lcm2402_writedata (uint8 lcm2402_data) {      Lcm2402_testbusy ();   lcm2402_rs = 1;   lcm2402_rw = 0;    LCM2402_DB0_DB7 =  (LCM2402_DATA/16) <<4;   lcm2402_e =  1;    delay_ms (CT);    lcm2402_e = 0;    LCM2402_DB0_DB7 =  (lcm2402_data%16) <<4;   lcm2402_e = 1;    delay_ms (CT);     lcm2402_e = 0;}  //  sends a string to the LCM with a length of 48 characters within  void print (UINT8&NBSP;A,UINT8&NBSP;*STR) { lcm2402_writecmd (a  | 0x80)  while (*str !=  ') { lcm2402_writedata (*str++); } *str  = 0;}   Print single character program  // void print2 (uint8 a,uint8 t) { lcm2402_writecmd (a |  0x80);  lcm2402_writedata (t);}   Define small Kanji    write 16 literal characters, which can be extracted directly from the Cgram code after writing. uint8 code xword[]={    0x18,0x18,0x07,0x08,0x08,0x08,0x07,0x00,         //℃, Code  0x00    0x00,0x00,0x00,0x00,0xff,0x00,0x00 , 0x00,        //, Code  0x01    0x00,0x00,0x00, 0x0e,0x00,0xff,0x00,0x00,        //Two, Code  0x02     0x00,0x00,0xff,0x00,0x0e,0x00,0xff,0x00,        //III, Code &NBSP;0X03&NBSP;&NBSP;&NBSP;&NBSP;0X00,0X00,0XFF,0XF5 , 0xfb,0xf1,0xff,0x00,        //four, code  0x04     0x00,0xfe,0x08,0xfe,0x0a,0x0a,0xff,0x00,        //Five, Code  0x05     0x00,0x04,0x00,0xff,0x00,0x0a,0x11,0x00,        //Six, Code  0x06    0x00,0x1f,0x11,0x1f,0x11,0x11,0x1f,0x00,         //Day, Code  0x07};void cgramwrite (void)  { //  loading cgram //     uint8 i;    lcm2402_writecmd (0x06);   // cgram address Auto plus 1     lcm2402_writecmd (0x40);   // cgram address is set at 00     for (i=0;i< 64;i++)  {     lcm2402_writedata (xword[i]);//  write data by array      }}// lcm2402 Initialize  //(user customizable, add  *  program line must be retained but modifiable) void lcm2402_init (void) {   lcm2402_ Writecmd (CMD_SET42); //*  display mode setting: Displays 2 rows, each character is 5*7 pixels    lcm2402_writecmd (cmd_set42);  *  display Mode settings: Display 2 rows, each character is 5*7 pixels    lcm2402_writecmd (cmd_clear); //   display clear screen     lcm2402_writecmd (cmd_back); //*  data pointer points to 1th line 1th character position    lcm2402_writecmd (CMD_ ADD1); //   display cursor movement settings: text does not move, the cursor moves right    lcm2402_writecmd (CMD_DIS_GB3);   //    display on and cursor settings: Display on, cursor on, flashing open  cgramwrite ();   //   write custom characters to Cgram}bit  Isleapyear (void) {    //calculates if year is year   unsigned int a; a =  2000+time_yy;//Plus 2000 represents the full year  if ((a%4==0 && a%100!=0) | | (a%400==0)) { //Formula   return 1;//is the annual return 1  }else{    return 0;// Not the run-year return 0  }} void month_day (void) {   unsigned char mon_day[]={31,28,31,30,31,30,31,31,30,31,30,31}; time_dd++;// Day plus 1 time_ww++;//week value plus 1 if (time_ww > 7) { time_ww = 1;//period value limit  }  if (Time_dd > mon_day[time_mo-1]) {//Check whether the day is greater than the maximum value of the current month  if (Isleapyear () &&time_mo==2) {  Calculate whether this month is run year of February    time_dd = 29;//if is run year is February, then days for 29 }else{  time_dd  = 1; //otherwise equals 1  time_mo++;//month plus 1  if (time_mo > 12) {  TIME_ mo = 1; //if month is greater than 12 month equals 1  time_yy++;//year plus 1  (unlimited add)          }      }    }} void init  ( void) { //power-on initialization  TMOD = 0x11;         //  Timer/Counter 0, 1 working in mode 1       th0 = 0x3c;           //  presets Generate 50ms time-based signals        TL0 = 0xb0;        EA = 1;               //  Total Interruption        ET0 = 1;              //  Timer/Counter 0 allow interrupts         TR0 = 1;              //  Open/Close Timer/Counter 0       time_dd = 4; //time in the first use value, The value of the day is automatically recorded in the EEPROM     time_mo = 10; //initial time: May 18, 2009 Monday, 20:13 40 seconds      TIME_YY = 15;    TIME_WW = 1;     time_hh = 0;    time_mm = 35;    time_ss  = 0;} Show items   Time section   inFirst row full line display time Void realtime_display (void) {     print (0x80, "" ");      print2 (0x82,time_yy/10+0x30);      print2 (0x83,time_yy%10+0x30);      print (0x84, "/");             //  Show Year      print2 (0x85,time_mo/10+0x30);      Print2 (0x86,time_mo%10+0x30);      print (0x87, "/");             //  Display month       print2 (0x88,time_dd/ 10+0X30);      print2 (0x89,time_dd%10+0x30);      print (0x8b, " [");            //  display [      print2 (0X8C,TIME_WW%10);  //Week      print (0x8d, "]");             //  show]     print2 (0x40,time_hh/10+0x30);//hour       print2 (0x41,time_hh%10+0x30);      print (0x42, ":");             //  display Cgram First font ":"     print2 ( 0X43,TIME_MM/10+0X30);//min      print2 (0x44,time_mm%10+0x30);      print (0x45, ".");             //  display Cgram First font "."       print2 (0x46,time_ss/10+0x30);//Sec      print2 (0x47, TIME_SS%10+0X30);} /*** function Name: 10-bit A/D conversion initialization function    with:read_init  (?); Ginseng    Number: Input port (0000 0xxx  where xxx is the set input port number, available in decimal 0~7, 0 means p1.0,7 represents P1.7) return value: No knot    Result: Turn on the ADC function and set the input port for ADC    Note: The corresponding IO interface needs to be set to a high impedance input mode (e.g.:p1m1 = 0x01;) when using the ADC function ***/void read_ init  (Unsigned char cha) { unsigned char ad_fin=0; //Storage A/D conversion flag     CHA &= 0x07;             //Select one of the 8 interfaces of the ADC (0000 0111  0 High 5-bit)     &NBSP;ADC_CONTR&NBSP;=&NBSP;0X40;&NBSP;//ADC conversion speed (0xx0 0000  which xx control speed, please set according to data sheet)      _nop_ ();     adc_contr |= cha;       // Select a/d current channel     _nop_ ();    adc_contr |= 0x80;       //start A/D power     delay_ms (1);             //to stabilize the input voltage (1ms)}/*** function name: 10 bit A/D conversion function    using:?  = adc_read ()    number: No return value: 10-bit ADC data high (from 0 to 1023 (decimal)) Knots    fruit: read out A/D conversion value for the specified ADC interface and return the numeric preparation    Note: Suitable for STC12C5A60S2 Series microcontroller (must use STC12C5A60S2.h header file) ***/unsigned int adc_read  (void) { // int  2 bytes, 16-bit  unsigned char&nbsp ad_fin=0; //Storage A/D conversion flag     ADC_CONTR |= 0x08;       //start A/D conversion (0000 1000  order adcs = 1)     _nop_ ();     _nop_ ();     _nop_ ();     _nop_ ();     while   (ad_fin ==0) {     //wait for A/D conversion to end          AD_FIN =  (adc_contr & 0x10);  //0001 0000 test A/D conversion end no      }    adc_contr &= 0xe7;      //1111  0111  clear Adc_flag bit,  turn off A/D conversion, return  (ADC_RES*4+ADC_RESL);//Returns a/D conversion result (10-bit ADC data high 8 bits in ADC_ Res, low 2 bits in ADC_RESL)//Internal register Adc_res returns the value, when reversed to int, left two bits, empty two bits out to low two bits adc_resl}void main  (void) {unsigned  Int m;  // m must be a 16-bit data type!  init ();//Initialize &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBsp;               lcm2402_init (); /lcm2402 initialization  P1M1 = 0x01;//   High impedance will be sensed, which one will be used to open which                               Read_init  (0);  //  Select p1^0 pin  while (1) {  realtime_ Display (); m = adc_read  ();//m must be a 16-bit data type! Print2 (0x4a,m/1000+0x30);p Rint2 (0x4B, (m%1000)/100+0x30);p Rint2 (0x4C, (m%100)/10+0x30);p Rint2 (0x4d,m%10+0x30);        if (day_bit == 1) { //Check if the days are updated, the Gregorian calendar is calculated   month_ Day ();//Calculate Gregorian date    day_bit = 0;//date change flag position 0 } }}void tiem0 (void) after calculation is completed &NBSP;INTERRUPT&NBSP;1{&NBSP;&NBSP;&NBSP;//&NBSP;T/C0 Interrupt Service Program (generates 50MS time base signal)         cou++;                      //  Soft counter plus 1        if (cou > 19) {                  //  count value up to (1s)             cou = 0;                //  Soft counter Clear 0            TIME_SS++;                  //  seconds counter plus 1 (Carry 10ms*100=1s)            if (TIME_SS > 59) {          //  Second count to 60                            time_ss = 0;           //  sec counter Clear 0                 TIME_MM++;              //  counter plus 1 (carry 60s=1m)                if (time_mm > 59) {       //  Count to 60                    TIME_MM = 0;       //  Sub-counter Clear 0                     TIME_HH++;         //  counter plus 1 (carry 60m=1h)                     if (time_hh > 23) {  //  Time Count to 23                        TIME_HH = 0;   //  Time counter Zeroing    day_bit = 1; //Day add-on sign    }               }            }       }       TH0 =  0x3c;                //  Reset timing constant        tl0 = 0xb0;   }

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lcd1602,4-bit data bus LCD clock, stc12c5a60s2 10-bit ADC function program