51单片机用LCD1602液晶显示年月日，及时间时钟设计代码

relchhiclty · 发表于 2019-1-18 13:48

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51单片机用LCD1602液晶显示年月日，及时间时钟设计代码
  _# D, a$ E  @+ G2 v

#include<reg52.h>
2 r, F) X- c; f#define uchar unsigned char
. [8 N7 n. ]* Q4 d" R#define uint unsigned int# M) x, E5 x: w
sbit dula=P2^6;
$ E7 B1 K# j4 Tsbit wela=P2^7;
6 B. t0 ~; ?* osbit rs=P3^5;
6 R3 k5 G1 X: T  [8 j8 o$ c" Q* Fsbit lcden=P3^4;
9 b* N  S: x3 U" a  C' u# c; Rsbit s1=P3^0;7 ]. G9 Y- F+ Y8 ^& f0 ?$ P
sbit s2=P3^1;
sbit s3=P3^2;% n7 v  R% O' h, t- B8 @
sbit rd=P3^7;
' ^3 t) b# k7 fuchar count,s1num;5 s( a- j: `  Q& w7 i* v' W! [
char miao,shi,fen;
# j9 h% d# l' _6 [9 Buchar code table[]="  2007-7-30 MON";
6 {; ~2 \: y9 Y2 \uchar code table1[]=" 00:00:00";+ U3 h# E* T8 @9 R  g0 r
void delay(uint z)3 g. S% H) \1 V; v
{" H" P" i( d9 {$ Q# h* p5 g
      uint x,y;
) X) O0 F% `; b. J) \8 c       for(x=z;x>0;x--)
- \) A* E4 c1 W% t$ m1 J0 b             for(y=110;y>0;y--);
9 h" f- k/ T2 v2 X}( l# m) y$ F2 t& u% s2 j
$ Q: m/ ]+ l  w0 ~; q
void write_com(uchar com)
5 u/ l6 H. i% m0 s{8 \) Z% T) N7 \! j' e! D. M
      rs=0;& R  I1 q6 r3 y$ f9 X0 ~8 l
      lcden=0;/ K( C1 B' [2 D$ R4 G
      P0=com;
8 L3 N3 i# C, ]( W+ p% N) A       delay(5);
, v: ?8 g* A* H: H+ d7 \0 }) T       lcden=1;" e, M. r1 S7 J0 T
      delay(5);
6 [. A4 X" ]# _2 o       lcden=0;
! Z+ N2 Z; Y4 K' o* [' g* ?6 z}+ q2 h& R" z" X- r

% b! [6 O& ~  Q6 o) ]( Q4 Lvoid write_date(uchar date)) V# u* `! U" p  P" G8 E- A% d
{
+ G' \- @5 L* x# C  m0 ]& A) d       rs=1;
4 T; x7 J0 M3 b: y) W       lcden=0;; F" M9 {. k: X- f1 S  @" ?7 g; K
      P0=date;, v; w1 }2 o4 e& f9 Q$ i
      delay(5);& }2 I" ?/ j- Z1 O9 ?; z9 L- R
      lcden=1;
6 S/ C5 E/ O+ g* U2 E+ e% a# Q' L       delay(5);
- p- N3 b( G5 ]! z/ J5 ?9 e6 Y% Q       lcden=0;       ! u" M3 b& J" D
}
. s# h5 f) |; \! C2 p' F/ [3 O' x. B/ W# z% g7 ^
void init()
4 `$ o0 E) ]: X) ]{" j, l- {; ~$ X# r# R2 ~8 l
      uchar num;8 f) j3 o" {+ r" a! Z/ c
      dula=0;8 h, `5 e0 q, n: |
      wela=0;
. C! c: U" d9 ]( X  P: n# C       lcden=0;
* x; `- [  ~, i" ]( ~6 ^5 _//       fen=59;% q  p6 N3 W% p' F# E
//       miao=53;' R/ K& U  }- T+ Z2 }! B8 e
//       shi=23;
3 `3 {7 L: f9 D3 l& ^$ l* B+ M% _       write_com(0x38);5 n7 H* j. w% g+ X. [3 R- F7 r
      write_com(0x0c);
. T3 f/ f* O3 |8 T1 s       write_com(0x06);# V( s( J% |+ I" L  [
      write_com(0x01);
" w' \; Q2 p+ z       write_com(0x80);
4 n8 W: Z; W- e" Q  h9 O       for(num=0;num<15;num++): z  ^  W' \- }! J
            {
, D' K5 B* k7 e8 W: E$ S                      write_date(table[num]);+ J1 X; m2 p3 I# Z! S
                     delay(5);) o# X, W* T+ h6 T' f& Y2 n
            }: ~  \6 c9 d+ A/ g- X  a
      write_com(0x80+0x40);
% Z6 K; u. [( R" L1 F3 A7 P" N       for(num=0;num<12;num++)* q& f5 A  @) @. a* M
            {' s% g$ _4 c. v0 x. B
                     write_date(table1[num]);" R' C- G1 U6 v' U* d  {
                     delay(5);
/ Q& G  o' k+ Q) i& r             }# G* A$ W# ?# M9 w% p& @5 z
      TMOD=0x01;5 J0 o. A4 }5 D! F- ^# h, |" S+ y
      TH0=(65536-50000)/256;, W$ \+ v' I5 b2 g5 Y: Y- r
      TL0=(65536-50000)%256;
! J+ a2 t( {% \" _4 Y4 z% t       EA=1;
7 i( E& T! I# T9 u1 E( \' s3 C       ET0=1;* g  E8 T4 W: v5 K! X2 L7 T0 L
      TR0=1;6 y  c* \  p6 K" P# K
}
" [) k% g. X+ O/ s, |  L. W5 ^5 _8 u
void write_sfm(uchar add,uchar date)' b; W% C% y" [. O1 k
{  i7 |9 s+ _$ N3 b: B
      uchar shi,ge;& H% k) N6 f7 ?/ J! _
      shi=date/10;
3 Y( K4 j- ?- }5 l       ge=date%10;5 `# m- R4 N- j: c6 R* e
      write_com(0x80+0x40+add);
: L# t* n6 l/ E( s' k' n  ^, ^       write_date(0x30+shi);
) t' W8 g& y3 \  j! x+ h# z       write_date(0x30+ge);
* c( ?; G/ K$ i, J}
2 a! e5 I8 F+ `5 `0 H, {4 k
& t8 m* E5 L+ t0 l+ wvoid keyscan(): `4 S+ |4 C+ v$ ?
{+ ~( ~* e4 W" T" h+ M, ?
      rd=0;! h  t0 n0 w* v6 y2 O. E
      if(s1==0)       0 k5 p' u! g. c
      {
  G' h' F5 [6 o, F. c1 E9 W+ p# a             delay(5);
( U8 W& e/ m: e* V             if(s1==0)6 R* W: i9 \+ X, N0 ^9 U$ B
            {       s1num++;$ h: m; C1 j2 ]$ N0 W! P  P8 r( P
                     while(!s1);
" {$ Y/ H0 e+ A2 \& A8 t% y/ _                      if(s1num==1)1 M( b  t" G1 X1 d; u
                     {% E, h: y3 O9 U# ~
                              TR0=0;
9 O) G' @+ n8 l  @9 l9 E8 _2 J                               write_com(0x80+0x40+10);
1 |2 ~: i/ M: w% C6 V                               write_com(0x0f);
7 O7 E3 {! _( Y# B+ f                      }; d( u- k! p& C/ t: j
      }
6 _9 y" S8 w1 Q9 ^% ?% p$ B                      if(s1num==2). x1 q" d7 D  j1 u3 `" S: a! H
                     {
7 b7 _: u+ t) L, A* e4 `8 @1 F                               write_com(0x80+0x40+7);: y$ V! n& Q0 A1 b9 H+ F8 t
                     }7 U- ?8 n# Q; s, O
                     if(s1num==3)9 P( r* H* r5 P8 j( @
                     {
1 I9 Y: O( E  K                               write_com(0x80+0x40+4);
- w. i, h7 {/ h" X: A- e; t. K8 x                      }. t. {7 }4 q* ?, {2 v3 y
                     if(s1num==4)
7 b! R* a5 l8 _) `) s                      {2 e5 s; O' e/ j  T6 e8 C
                              s1num=0;
. ]( L4 D3 Z1 L4 i                               write_com(0x0c);
2 X( B# J( f  y4 z! V                               TR0=1;0 y* V5 g3 N  t! {
                     }
, @2 v  U# ~( J, i& L* k" s: U% n# R( {% S  H  E/ A7 F
                              / Q' v+ f/ H4 l/ b% r1 D# C
            }8 b6 Z$ Z  c" u/ A5 L) W
            if(s1num!=0)
, s& y8 C+ H( Q! T" ]1 m             {
) o: g: }* b; [5 |9 E& o* q6 H                      if(s2==0), R/ ]* h' U6 _8 w
                     {
; c' C- Q" K( q( X                               delay(5);/ }5 @8 V( ^2 |6 Q
                              if(s2==0)
: h' [: v4 W5 {$ ^0 }2 h) _7 m                               {
! p! G! E1 B, m% Z" ^, z3 k                                     while(!s2);9 f, I, i* w- Y8 |9 }4 \2 [8 N4 x
                                    if(s1num==1)  e. @! v8 S6 M3 y9 S/ o0 k% O% W
                                    {7 s: s% z$ @6 @; q8 N; B' N2 W
                                             miao++;1 u. u+ y# b) d
                                             if(miao==60)! r! b# m6 W4 B% x& A
                                                      miao=0;* l6 ]0 ]% \2 s0 P3 t
                                             write_sfm(10,miao);
6 J9 Y. S/ R4 o2 w8 `                                              write_com(0x80+0x40+10);6 j/ s: G. E; ?; H$ @

% _1 q6 v. b2 f                                              8 X# ?4 Y- u' R3 G
                                    }$ v$ W% A; X. I) `( u% \8 @
                                    if(s1num==2)3 ?9 S* A2 q) c0 ]
                                    {& C, S( r4 L* W! H0 P. t! }
                                             fen++;
8 G: M7 `& D' d7 O  o                                              if(fen==60)
; u3 {! z, t* n& F; R, z# C, y                                                       fen=0;8 [2 N3 X, b( C- }" Q
                                             write_sfm(7,fen);
+ f: k* B& H/ u( s, U                                              write_com(0x80+0x40+7);
1 J4 I: f2 r& @9 @- k$ E                                     }" g% H5 U+ R' e1 s* V9 Q
                                    if(s1num==3)
9 @" Z: _% G" u                                     {6 @% A" q2 B, x% G9 y8 J7 F
                                             shi++;
8 l! e$ i+ D3 r, q                                              if(shi==24)
" v' M, R2 l$ N( G' U+ b0 ~' T                                                       shi=0;  G2 \* P; A. o1 d0 p7 `0 p/ A# b2 g
                                             write_sfm(4,shi);
5 g+ Q! Q6 {0 G* m1 T: ~& o* P- C                                              write_com(0x80+0x40+4);
( q7 S( a& l$ P, Y: _                                     }, A& |+ S1 Y+ u& D" G' i
                              }
9 d( q4 L' V% E5 {8 ?- B; J                      }
. Q9 y/ @( x; C! K$ u% b                      if(s3==0)
1 S$ \4 b; o+ d                      {
. Q! @2 L# O# h, M& S* Q5 }3 `7 [5 c                               delay(5);0 w* p; i# {& K% u8 ^( l% R( m
                              if(s3==0)
5 M& P8 R' a5 m$ W( k7 s. q" r* d                               {) g1 Y- k) g. \; I8 B
                                    while(!s3);
% U2 Q( c5 @9 R  t* X                                     if(s1num==1)1 i& c8 W9 x$ K4 H- A
                                    {: N; C9 `4 ]/ {$ b3 W$ {$ @
                                    /*       if(miao==0)
( v. h: F9 u+ P! Z) H* H- s& Z                                              {
; z2 m0 I9 M# w, O1 l+ O                                                       miao=59;
  U2 N, z1 v; c; {6 O( X+ p4 A                                                       write_sfm(10,miao);
! r- |* b/ `1 g1 n. M1 l                                                       write_com(0x80+0x40+10);1 w! }$ q& D9 Q3 k0 g+ Z* W, `
                                             }*/
; o, ]* C( s3 t+ a" {# d7 S                                              miao--;
: d6 h  N; s! l/ O% S& T                                              if(miao==-1)& N+ R+ G( _5 C2 o8 F% v
                                                      miao=59;: y+ q; w* W4 C( h! p* U% c- ^' q
                                             write_sfm(10,miao);
0 J6 }' s) @5 z2 s; ~1 i* `" B                                              write_com(0x80+0x40+10);
) X( T: M, g* w* u6 g% V                                     }( F6 s5 y* x  t! t6 J
                                    if(s1num==2)+ M: Z2 L& |/ @" B  k) B
                                    {
: o5 m) Y, Y0 I0 Y: w                                              fen--;
4 W' s  D4 x- n) H* i2 ?5 Z' l& P                                              if(fen==-1)- x2 f2 ^2 d/ ~' K- B
                                                      fen=59;! D8 _; w7 k1 a1 ^4 ^$ F" }
                                             write_sfm(7,fen);
5 G" m) j+ f) Q                                              write_com(0x80+0x40+7);3 X8 p) S. R; `' \
                                    }4 A( s  [  g% y4 O+ ?+ m
                                    if(s1num==3)
2 B. T  I, p! A1 q. T* ]. Q                                     {. c+ w* V3 q# T, F5 D# W' k
                                             shi--;& }4 s( C+ ^5 M7 P/ H! ?0 D
                                             if(shi==-1)) h' w$ I! E+ X  [# \2 ?
                                                      shi=23;- O% j- t" o# o, e. F9 c8 n3 s# j
                                             write_sfm(4,shi);
7 c5 z0 `$ s; q+ t- _# j' T( |                                              write_com(0x80+0x40+4);
5 a0 ?5 E7 M4 t5 L                                     }+ h( \/ e3 X5 C% T8 V
                              }& b2 S2 R" _/ J0 g0 v; a" h- \  n
                     }$ a* q8 t' Q0 J4 l, y& v
            }, O/ h2 u- F9 E+ `3 d
}
% G/ v6 W4 v2 W& o+ D% Uvoid main()
( p% J( d: g8 j0 M2 h{
2 }! y& W5 X9 P2 w" b1 ]$ h/ W       init();! A- Z% ~  i) a' b
      while(1)  N0 r! H' ?( ]: m5 E" v
      {: g6 \% n5 L. @6 L
            keyscan();
0 Q% c, Q3 O: j1 i0 ?) F6 ?             ) {6 a% K; W3 s/ o9 ]& O
      }
/ @- t6 J) h3 h//       while(1);; d- p, `) m+ Q9 J
}
8 m5 K4 z  E: C: R3 u; p3 U2 b9 e3 M
void timer0() interrupt 1. j; i# H9 C4 s0 m
{
% X% a( r1 Q% {+ w. ]6 ]4 S, A       TH0=(65536-50000)/256;, S: w! Z' L( a2 h- }
      TL0=(65536-50000)%256;7 b/ t: y/ x% H# b/ Y( c; H
      count++;
& C( M- b; L# ?* I+ @( W) Oif(count==18)
. Q/ f% ?4 g/ |/ S             {
- p6 Q" `& X5 N! m5 @, i3 ~$ _* P                      count=0;
$ h, s/ X& ]& M: Q( Z1 L% E                      miao++;
9 s  c* [8 Q/ J% x% z; ~                      if(miao==60)3 Y! i2 Y" t# n8 V* c- m0 a/ t! `  N
                     {/ e, h. e, Y# g. ^
                              miao=0;9 m. d& h4 X9 I2 [
                              fen++;
7 U/ A; M4 h/ A8 w                               if(fen==60)8 l4 k4 K: L) }$ s* L
                              {
8 e) _8 k7 ~2 d% ?. ~0 _                                     fen=0;* _% I1 ~9 o8 q  Z% [
                                    shi++;
% _0 A8 z0 k% |: Q4 w                                     if(shi==24)
/ L, j$ i" o( h7 Z$ f2 |5 W# r                                     {
. }/ A9 `) j7 A8 d2 F                                              shi=0;8 O+ L9 A3 J1 c8 u) y  a
                                    }* n' t# O/ l) u* K% B
                                    write_sfm(4,shi);
! a  d: }6 F% h. I% [+ [+ U! y                               }
3 s7 {# l. M0 ]. ?8 ^                               write_sfm(7,fen);( X! @7 z  D/ q* F. A
                     }
% R; _* I0 U2 l' p1 W' F( D                      write_sfm(10,miao);/ y- N8 f* V* n  z
                     9 [( d, G2 E* |3 I9 \
            }       / V: S7 M$ [' L
}

cat12620 · 发表于 2019-1-18 15:07

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51单片机用LCD1602液晶显示年月日，及时间时钟设计代码

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