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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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* I) z2 Z/ b/ d& f( }# k+ A#include<reg52.h>
: r! k$ ]% J" ~: N/ p$ J7 o0 o# h5 g#define uchar unsigned char 5 a3 d3 A% G0 r5 s0 F
#define uint unsigned int9 s8 I6 x) |: @/ \" S
sbit dula=P2^6;# w3 {, Q- `% P" {( P2 [$ `
sbit wela=P2^7;
5 P0 ^# T9 A( o+ c: o% vsbit rs=P3^5;, z: M3 o# i3 e- V
sbit lcden=P3^4;
( D4 H9 u' G( g$ R# d! S9 {sbit s1=P3^0;' b: _( ^9 g) m- Q$ u N
sbit s2=P3^1;( v% p$ _- ^' W/ w0 ^2 x! ?
sbit s3=P3^2;: ]( M$ D% Y: B0 p6 [# P, s
sbit rd=P3^7;
+ c2 D5 }) E1 g0 m l/ yuchar count,s1num;. A3 _+ M: a$ M8 G0 e& v
char miao,shi,fen;) |: K0 x, K5 ^/ Z
uchar code table[]=" 2007-7-30 MON";! F; l: ` ]; n- l
uchar code table1[]=" 00:00:00";
' q n$ H* B! R6 i- ]7 ^! n4 nvoid delay(uint z)
+ ~5 a8 w1 d0 d7 L3 E/ N+ o{% p% P0 Q% @7 u3 T
uint x,y;
9 z- R3 L& d! @/ w for(x=z;x>0;x--)
8 |( j9 E% |; u7 b8 v# t. Y for(y=110;y>0;y--);
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void write_com(uchar com)/ \5 J1 s% c, H; G. S
{
! C8 L7 ~0 I; S: n# p- U7 s2 q rs=0;
5 h. T, h1 ~$ \7 w0 f# k% [ lcden=0;, w- o. ~; k% {# G( t3 F
P0=com;) Z$ b! e+ P8 L( k7 U& i
delay(5);. m0 @' ~1 c' j# Z
lcden=1;
, K5 b7 q* @8 u* ~ delay(5);
( @$ n+ Q. a' | lcden=0;
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- b3 z- v0 M+ E$ m1 Nvoid write_date(uchar date): Q5 r" U% I/ y& I
{
' E3 @1 C8 Q" o4 ~6 c rs=1;
0 C3 W/ p, l& e/ G/ n- N lcden=0;8 ?2 P7 @! ]" a7 q/ Q9 I9 o5 N# \
P0=date;8 n5 A( Y* j' j3 A; y
delay(5);7 ^0 ]( Z" T- a9 y! H
lcden=1;
" q# n2 c2 D; V4 p delay(5);. L) l) x& M& _' }
lcden=0;
+ E1 I& V9 U# n! T* x3 f}5 P: R8 n: T& h7 m& f
7 [3 N% G2 I% Bvoid init()
5 q+ x8 Q3 j. \) ]7 u{
9 [$ x4 N: p7 D uchar num;" L: G0 o- ]" H$ x4 `: Q+ l
dula=0;! ~6 ~" q* @, o- A2 }
wela=0;7 u7 B+ h% } k; e, P% H
lcden=0;
! y' _% G3 T: v// fen=59;
: B1 T3 b) i. w6 Q// miao=53;
2 l7 o7 L' j" x. X// shi=23;! v) L9 e+ s* a! o' J
write_com(0x38);6 ]' l8 v% H% m- I; I! V9 ^$ w/ X
write_com(0x0c); _! |- u, z. Z& I3 J- L5 \
write_com(0x06);
6 L7 k1 [, s c: g write_com(0x01);- d! D8 f6 _: C; F b' X, Q
write_com(0x80);+ ?/ |/ s% A. L, U% T( x- W
for(num=0;num<15;num++)/ B+ e+ ]9 j. B( R* G6 C' n! J
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write_date(table[num]); K7 _, D# v7 P, v$ E
delay(5);( c: A7 B4 X5 |% b; t: E
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write_com(0x80+0x40);
; G: ]. I5 c9 o$ Y- y- [6 E for(num=0;num<12;num++)9 F# E" K! o- u" C6 J0 O
{
8 g) |0 L, }" O& l& A/ B. s$ Z8 u write_date(table1[num]);
. J* {, W$ i6 I( O2 Y delay(5);
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TMOD=0x01;: H& M8 K% R* j9 }
TH0=(65536-50000)/256;% B8 _4 o6 \8 ^) ?$ }
TL0=(65536-50000)%256;1 G! c. B3 m3 {3 D, k1 c
EA=1;
# X; C* O* D5 F- M( N( u ET0=1;
- x# [4 j0 M$ ]+ n TR0=1;( h8 J0 \4 B9 d! r. o2 D {0 ]
}
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5 J" d. j" O: ]$ w8 p5 T0 ]void write_sfm(uchar add,uchar date)4 w' r; {" h0 _0 C4 J0 ^* F7 S
{5 w4 H2 u, }5 |& t
uchar shi,ge;
1 P# d0 P. [6 X% R% o" L9 R7 \ shi=date/10;
+ P; A/ h( g- Y ge=date%10;
" r6 m# i# x3 s$ m write_com(0x80+0x40+add);+ }( k- Z0 X; p
write_date(0x30+shi);. W9 v0 ^1 r; O M j% D
write_date(0x30+ge);
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void keyscan()+ b+ s# M+ J" w- j8 Y2 |' I
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rd=0;( O6 |3 ]" V' b6 H' \2 \
if(s1==0) & |3 \* k2 G; D5 t3 l) X, S' O
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delay(5);: N4 f* v+ J! v* ?- |, F8 M
if(s1==0)6 S4 ?$ o. F: d4 X- P( q
{ s1num++;
! [4 M6 p# m$ `3 o while(!s1);
0 P% E1 E5 q$ X7 ]6 Y if(s1num==1)
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9 F" j* M1 w" j" w1 X' C/ _ TR0=0;
$ N4 g) M( M) }' j write_com(0x80+0x40+10);
, A4 O8 N2 {" r* ~6 S# q) [ write_com(0x0f);
1 y, y& \4 D8 ]2 y, _$ T) m }
1 f2 j4 q6 }6 G; o0 b7 W }
1 @8 J( C: a0 h' t' u E if(s1num==2)
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9 |% B. M! Q$ _ write_com(0x80+0x40+7);
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if(s1num==3) @5 [6 ^; t1 T) I" }
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write_com(0x80+0x40+4);
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/ X% Y, m0 w! q& J if(s1num==4)$ B2 K( b" Q8 P& q9 \% x
{; |+ [% @" \7 ?- V: U; i
s1num=0;
0 `' E7 i3 ~1 |5 D5 A) d. g2 w write_com(0x0c);$ Q2 l! q3 K! n- L* G
TR0=1;) P& L- U. J' [9 {4 e, n7 X! a, F
}
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. |! w3 j( ^. | if(s1num!=0)2 I9 z& o: T7 r
{
2 _7 m2 C# G0 C& F if(s2==0)
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delay(5);0 o; ~0 k+ l/ w3 p" }8 g: M
if(s2==0)
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( q$ e+ T, I8 C7 e while(!s2);
8 Q8 _1 e+ q# n7 b" R- l% q if(s1num==1)* ^& k# j6 }( m) Q6 R
{
& u6 s! |6 t* M9 v+ y% B/ ? miao++;; q1 y' g9 p) |5 r1 w: o
if(miao==60)+ U; i. \ ]' Y5 S5 _
miao=0;
% f% u8 g; v5 n/ S1 A/ c8 W% q write_sfm(10,miao);
% C0 G3 ?2 S7 O; `+ ~) q write_com(0x80+0x40+10);0 I2 q) n3 D: k
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}
3 c& _- [* ^$ p: o, j) q2 f5 J if(s1num==2)1 p( ?) q. k5 J# Y
{
. p3 j8 F. x7 K5 K fen++;
|* @% o, H9 }6 w' Y8 M6 |2 x if(fen==60)
% p$ t& L: Z$ X+ J4 { d fen=0;7 C/ W) \2 l% K& |2 V L9 x O$ o% m
write_sfm(7,fen);
+ i* C* L }9 b! w8 o write_com(0x80+0x40+7);1 ?5 ` ~; L. _" Y' y! i% a
}
0 O$ } M" n7 S& ] if(s1num==3)
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, ~2 F9 p' l- o shi++;
: A0 x+ d- o& ]& w8 r if(shi==24)8 C; |( ^4 L* a, L
shi=0;, m; `) ~/ ^* u# \2 d& u8 h
write_sfm(4,shi);: a" I4 m2 p7 Z4 {' c
write_com(0x80+0x40+4);
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}
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if(s3==0)
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% @7 B& m: n- M% `2 n; E delay(5);
8 P G' z6 }# G5 ?* U# c% p! { d if(s3==0)
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while(!s3);1 Y, e8 _' D4 ^
if(s1num==1)1 z& ^) x$ d7 G: v3 t w
{
7 o8 o5 ] e( K, Q+ |# `+ F /* if(miao==0)8 n6 \2 G0 i; n/ }+ a7 Z) R
{
2 ?+ T5 d5 y4 p" ]1 {8 S# E4 l7 R miao=59;
% l( v1 X/ X4 F8 G% l) J write_sfm(10,miao);
/ a q2 c2 J7 h# O6 L/ T write_com(0x80+0x40+10);
# B2 Q9 a5 j' B, C: I v0 `: s0 Y/ G* R }*/
1 F" J: a: w/ {6 W& M$ r miao--;; k- ]* ?" Q- M
if(miao==-1)
, q; Q, H1 p4 v6 a& A miao=59;0 H- v. a8 C, x5 U# \
write_sfm(10,miao);
5 C4 V$ K8 L* [9 t# e write_com(0x80+0x40+10);' b1 m$ g' N6 c, p5 {
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if(s1num==2)
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fen--;1 U% ]1 h6 n; i( `6 t( S* ]
if(fen==-1)# i9 X' W6 `+ ]9 B! f5 I
fen=59;7 k) Q. a6 x( O
write_sfm(7,fen);
! s# i. X" m% I% g6 q write_com(0x80+0x40+7);3 M, @& @1 Q6 q- p( }" ?
}
5 K" f, e3 c- L' x- _1 Q if(s1num==3)
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shi--;' I E& d, [( e
if(shi==-1): V, K5 @& d# b$ C) m
shi=23;' N2 U t; \+ d" [& M" J; x; ~) M3 S
write_sfm(4,shi);2 u" C. A3 V& e- Y8 M3 i
write_com(0x80+0x40+4);% Q1 c, m+ Y& T6 ?; G. M
}
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void main()
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) d, Y( U: e* ^ f init();
/ ^) V ?3 P. D3 g8 w while(1)
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keyscan();" N7 g# A/ L% K: Z
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}& v2 n+ a& m( B& W$ N- ^
// while(1);2 Q, J v" ]/ C
}
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void timer0() interrupt 1
3 ^" X' o0 }# l' w{
9 q! V# Y- w6 R" q# N a7 F: { TH0=(65536-50000)/256;. W( D! n# F; t7 f: N: q& u% H! H
TL0=(65536-50000)%256;
6 T& k, f' J# j count++;* R; \- B6 x8 f! d/ F
if(count==18)) ?7 {2 j- D! G2 U7 c6 n- f
{
+ ]2 u% a5 u4 S: x! D4 o- w) Q count=0;% ^8 [+ Y) `* h* r
miao++;9 n4 P. t9 O5 w% w/ w$ n4 J# W
if(miao==60)
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! X/ R6 t6 w; P( Y8 S7 |7 f0 |& v miao=0;
! U- k/ F" l+ a: f# s9 v fen++;9 g2 \' N' D" L( Z! i: J9 Y" P
if(fen==60)! V, G/ A7 g$ T4 R# ~2 I+ Q
{; V+ o N& o2 A
fen=0;
! _: j, z ?6 i8 X5 Q) X! c shi++;- z8 M! j$ d8 h7 D2 y( e( j
if(shi==24)
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shi=0;
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write_sfm(4,shi);
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write_sfm(7,fen);$ ^ w% ~4 ], `+ L9 R) ~
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write_sfm(10,miao);5 y$ ~! J1 _! g3 V, c. e& b1 D
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}
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