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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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" X* T& j/ r+ E0 a* s7 G' h#include<reg52.h>
8 a: g4 q: U4 ]6 Z+ {#define uchar unsigned char 2 ?0 c; @- |5 q) J5 h, T
#define uint unsigned int
h ?$ F8 M& L: n! Nsbit dula=P2^6;
* I: X. {7 ^' ?) f: k2 h6 csbit wela=P2^7;: i8 h- j/ l) s& L: q. {
sbit rs=P3^5;
* _2 y7 \2 S0 Z. Esbit lcden=P3^4;& E% _+ i& Z, H9 r/ Y
sbit s1=P3^0;
! V, F+ x2 x, K6 esbit s2=P3^1;) o' x" }3 Z. N
sbit s3=P3^2;+ H1 Y5 S! E3 [6 p5 R' @
sbit rd=P3^7;$ E5 y, U4 P' p% M& e; U d- `
uchar count,s1num;& P" m/ ~4 H, v5 a2 S" { W3 R7 ^
char miao,shi,fen;' y( k1 p9 e! X [$ f2 ^# G3 T1 h
uchar code table[]=" 2007-7-30 MON";" P! l9 `+ A6 L x* A3 F0 I6 e. d
uchar code table1[]=" 00:00:00";
1 Q) \% _) u0 @7 F0 q- _" \* Zvoid delay(uint z)
' n) g0 q3 z: d{
' @ e- u& |* P. v- ? uint x,y;
# [' P* _1 D& E) I4 a: X; b Y for(x=z;x>0;x--)
% R5 ~- M7 d5 U4 N" P for(y=110;y>0;y--);2 p. d4 Q; b' r; W, R/ ^" Z" Z
}
5 g0 O- _( U/ C3 m9 O3 U/ w5 Y7 p; b' V! k _% v' I
void write_com(uchar com)9 n! L1 i( x/ m7 e. N& d
{
+ t8 [8 |( j8 u$ a- k. G* ]1 p3 u rs=0; d, ?9 ~7 k. y3 J) c
lcden=0;
' ^+ z/ M( l1 d P0=com;
" {. E/ a. P V D delay(5);
5 S# W! T- e# a* G: |* r- L7 u) ~' f lcden=1;; K& B# T: H( k2 x5 c- `
delay(5);* I1 m& P* o' u2 T+ F
lcden=0;
; \5 \ G5 k0 M* Z! v2 V$ D}
% _' Y, ~0 p1 z* I b7 q3 E# L7 h! X" e2 F$ P. [; F3 e& G6 S" L2 h
void write_date(uchar date). X5 s6 G+ z, K
{
- K7 I, q' R3 b/ ]: p5 c } rs=1;# F5 X0 o. V9 g) x: G+ f
lcden=0;
3 c. e9 R/ ?/ f& F P0=date;
; z: m, a" ^! U delay(5);
2 q9 U- `+ }& R8 x& _ S lcden=1;
' R( Q5 r1 D7 W9 h! M5 F2 S delay(5);
* n1 u2 {4 `* n, U5 n lcden=0;
* W4 S3 D/ H4 M}6 D0 Q. N" z2 P1 m Z7 c
' N1 S0 s* w% O' v+ |+ c/ Gvoid init()
$ m0 C3 U7 }) y# D% P! X{+ Y7 O, H: w: v& M
uchar num;
' j% b) L; y/ [2 b3 S) o' U# ]' Y dula=0;
+ @4 N1 K* A/ c wela=0;6 d3 S0 s8 z: E! h4 n9 P, I
lcden=0;
0 I+ i! m, N l# Z% s2 a# u' d// fen=59;
: W5 O: p2 {6 `6 l3 u5 K// miao=53;
+ i0 G* E/ f" L+ i! G// shi=23;
) m3 F$ T' m O( B! X; L write_com(0x38);" i: C7 E( f5 I7 S/ {) J6 w
write_com(0x0c);
( z, c w1 p; j5 \$ N, s9 u. q write_com(0x06);0 }6 ^2 w# ~: X2 k5 t6 q
write_com(0x01);
" s/ I2 j1 N7 o& c& y write_com(0x80);* `; e% `) A, |7 S% i
for(num=0;num<15;num++)
& i q; Q: K3 \) i% r( x4 U, v, s! f3 N- d; r {
+ \% V( G& Z9 C. Z write_date(table[num]);
! I4 \9 F6 Y$ z5 g% C delay(5);; }$ b) j; }3 g; z$ P, w
}4 F, X( L3 h- @) b4 H& W# h
write_com(0x80+0x40);
! f! X6 `! ?- A5 O- A2 ~7 `( l for(num=0;num<12;num++)) q# u) f0 l# U, X1 H* g
{4 X1 K2 |: F( t
write_date(table1[num]);
- r4 `- [$ |9 e. I4 l' s' R delay(5);
1 U. G! s. h! I+ |! q& _ }
# ]4 ?$ d% S' Z1 Y5 r7 W TMOD=0x01;4 r8 u% Y+ a4 S) X- o% t5 N& _6 L' G
TH0=(65536-50000)/256;
! s9 E% t2 |+ |5 I' ] TL0=(65536-50000)%256;) C3 b1 S1 j, R- T4 ~! w
EA=1;3 J3 i9 M$ f$ E9 ]! l# I% y( c
ET0=1;
/ A- b2 ~+ O" x( F* ^ TR0=1;" k6 z3 b* T' @' q
}
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! ]1 d G6 Q+ y/ c# z- u/ Y. Z4 Cvoid write_sfm(uchar add,uchar date)) r- e- H+ [ d/ O
{
( ~+ ^: x; { G8 m z- f uchar shi,ge;
6 `1 y4 A; b5 n- m$ x+ c1 V- N) W shi=date/10;0 d, T% F, G7 ?7 i- Z8 l# z
ge=date%10;
) o, F, _* P2 \$ X write_com(0x80+0x40+add);! c+ ~2 S& ~2 r/ `) ?3 n2 L
write_date(0x30+shi);% x$ F7 r6 l3 q! G0 W
write_date(0x30+ge);
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3 C+ s5 G1 F# k7 I7 l+ t* V
void keyscan()7 {1 ?) w! `' q0 [( C
{
3 f5 f6 U! [ O& ~, ?1 h rd=0;/ C8 a w, d4 d
if(s1==0) ) x, C- ~" P& T
{
6 W2 f; C% |" _3 T1 \ delay(5);2 |9 M0 O9 ^% i' l0 V
if(s1==0)1 }9 j1 v2 P& W2 `% r' |. {
{ s1num++;" q9 r$ t2 O4 T1 @
while(!s1);
* e9 x, O" Q2 E$ y if(s1num==1)
7 K% O$ @- C$ u- J+ k8 l' A {
% b3 _; ^9 U* ^# s5 ` TR0=0;
* [4 H* C" A, X* K6 S7 r8 S write_com(0x80+0x40+10);
& b" d: O. W; _( { write_com(0x0f);
" r2 `6 o+ ?- z0 U8 Y4 B }
$ F" F7 K5 y9 j ^ X7 J }) ]1 C' l/ |) o, v( S2 e
if(s1num==2)
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write_com(0x80+0x40+7);- l, T) m, k* T( F+ v
}
; V3 m3 D! Z8 k9 H2 ]3 u2 D/ R if(s1num==3), V& b- }9 t. H9 L2 C" c% G" t6 n
{# E* U1 l2 R7 M1 f( p6 c" ]
write_com(0x80+0x40+4);
/ X8 @ R; w) ^' N h }
" z9 o8 w \4 f) n) V: h! ~2 p if(s1num==4)7 p" L" G, C4 ^" F6 k
{4 F3 z; F& |1 i# v( X$ {/ `
s1num=0;; [6 i; R1 W% S
write_com(0x0c);
L. v$ z- b9 Q0 J TR0=1;
|( `: n V. x }
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{4 F- t( j; d }- m! N' q* ?$ Q7 C" X4 k3 I
if(s1num!=0)
1 `7 `) I) O+ p$ E: Q {; x a5 |" `( _6 S4 }
if(s2==0)
7 h8 E3 V. o3 J4 D- _9 ] {
: \! w# t/ k' n# j" |% W l delay(5);! @1 s( o7 ^0 O# R1 g# `" E0 g
if(s2==0)
% x p6 t a0 l {
0 n7 P; S R5 \3 W while(!s2);
* V1 P; d2 ?$ i& z A if(s1num==1)
% c7 W9 U1 Q K9 o# [ {0 @( x! A1 z! k, I- t7 U
miao++;
1 B$ r; y, r9 [! S1 W if(miao==60)% r/ j: k" i& W c
miao=0;2 j0 W) V* x4 M1 ]
write_sfm(10,miao);
: I. V3 E' C5 c. |1 S write_com(0x80+0x40+10);; q# |0 {& D- I* `$ p, x5 Z
4 p) S& @0 w0 I" H1 p / L! G V+ T1 a8 q4 D8 \
}
5 p! P/ R7 y' i: ?6 |( F) R( q if(s1num==2)# r0 {+ Z: Q3 @8 ~+ Z
{
* a- c0 M! V' I fen++;- l7 u! K9 F7 |5 `
if(fen==60)
* N3 S4 p! d* e% d8 b2 X4 t! H1 [" S! b fen=0;9 w5 [3 A) s4 S5 F o" O
write_sfm(7,fen);/ U/ d( ~3 n- h. _7 ]$ v
write_com(0x80+0x40+7);
4 c% i7 Z( j& }8 j# ?) B }6 a! b M* N% b7 D1 c& a# ?1 c
if(s1num==3)
. c7 k! R. O7 C( {, k( I {1 g) C0 B ]2 i8 m2 T; k
shi++;
( U- q# z. x2 I( B7 v' b if(shi==24)
# Z( D- ^3 y( \; H! K shi=0;4 G y& c2 v# S7 s4 B' X; X
write_sfm(4,shi);
1 t: s: t7 n2 ? write_com(0x80+0x40+4);
7 [' c/ P, V6 G( O }
; Q* O* M: ^: z, M9 D0 V2 I }
* S/ }+ E1 A7 U# v# e4 V; @ }
( n+ F- K( ], j' ~; O4 H0 }7 F" j if(s3==0)
' A, p& {5 y4 f2 H( W4 K( l {( [/ }! H6 n" @: |& \) n- v
delay(5);$ H$ A1 M+ }" H3 i
if(s3==0)
/ N/ I" S) |# M: `0 z4 S0 } {
$ U$ B! O* i4 D1 Z* [6 Q while(!s3);
# f" y( J. s( l% h5 N if(s1num==1)
# n3 u# D3 w+ Y0 X7 J {
% F6 ]/ g8 r. [2 a0 s /* if(miao==0)
% J7 u1 N& G/ _% Q, U {
, f0 r! C: X9 Z; d# ` miao=59;, C+ M( n6 H8 H% k
write_sfm(10,miao);! ?: M3 U" c8 \) t; M
write_com(0x80+0x40+10);* d) \9 i) w& _1 @2 W# n
}*/
6 o. A. S9 H1 p+ g" K8 b8 A miao--;
+ R* }; b. v) P) e if(miao==-1)
' e3 _2 B" Q+ L" h% R$ r miao=59;
$ I% H# X9 V, Z/ L: \ write_sfm(10,miao);% ]2 n$ j$ ~! W
write_com(0x80+0x40+10);2 V7 g2 j2 @8 {5 h* |
}! ~* M0 p. Y" ? |5 B
if(s1num==2)- s6 z) Z* C; f' E+ c3 F* }
{; H0 ?" l( D6 }
fen--;
+ g2 A; l7 |0 ^4 F" c if(fen==-1)5 _* l( [% K4 \) V% v/ q
fen=59;
6 `+ E8 Y" u/ W9 C( C2 M$ Z+ B write_sfm(7,fen);5 X- z8 n* S5 g" o$ q1 n6 f3 o. H
write_com(0x80+0x40+7);
" k& n% K/ `' k4 Y3 o' x1 X }
+ a) U( {" S" y E; M' q; R3 u if(s1num==3)
7 u' |+ s- K% t) d! x+ l {" m" k! D* i5 c, f" p4 ~
shi--;4 ~" E" p4 J' S2 l; {5 x
if(shi==-1): O* A/ W8 N% L2 o
shi=23;* r: P5 `3 \ g3 E. V9 T( X
write_sfm(4,shi);. i& a/ h3 ~5 Q- `2 `
write_com(0x80+0x40+4);2 p: p2 g X8 r }
}
+ |$ Y- P4 S% x( c6 j# } }
7 b( _ w0 d3 H1 g }0 _) p7 o7 d" h: ~
}0 w+ t, J/ q" @ U/ O& K
}
- [; U) z" ~: s, u6 U$ U2 ?/ ?void main()8 t9 { K. {9 M. y5 S" O' m$ W
{( t5 x: \; n% p! z0 O! Z% |
init();2 R4 _( \9 X6 _- `/ J
while(1)9 P; ]1 V3 a6 ~6 k
{1 Z% |) b. X, W W; S' k4 t& C9 N
keyscan();
- Q5 A2 J5 ^2 G0 d( o y Z- H5 {, `: q
! u$ o- L$ s) A2 P) Z' `; F }& X6 `) Y; `6 g: B0 i) R5 `
// while(1);
" b" @7 s0 Z6 O. }& }}
r3 O7 f# I- J2 a
/ @( z( J$ w- T; Tvoid timer0() interrupt 1. `: i$ j) Y2 m, o' w N
{
, D& ~7 q+ m9 v6 w( O TH0=(65536-50000)/256;" T! ?3 `0 Q) S& r
TL0=(65536-50000)%256;
- D6 K' w8 j1 A/ Q- W count++;& r# N2 b# k) Q5 Q9 z
if(count==18)
9 Y- w5 M$ F2 c# a/ l {
$ t7 E1 x0 H6 A7 ? count=0;
2 B8 O. ^7 T9 ^7 t6 B; [6 c. c miao++;- u. k [: n: e% e2 f2 M: J
if(miao==60)/ ~! I8 w2 i* y! w, x2 A
{8 F, C4 z. S2 ^" L' C3 j
miao=0;
+ i0 f, q: Q# A" q( ^- J8 a" D, k fen++;* y0 f) T/ U: N
if(fen==60)' X! B$ A$ d B5 l5 y7 ]
{: ]* [) ^6 ]3 S5 u# d0 T( h% \. X
fen=0;0 Z% A g# L S! T: z
shi++;
- _+ a& ?9 u, M( G if(shi==24)
) X/ z" X' j# h/ J0 Y {
! D# X: A5 e' n# M" | shi=0;, t6 N# Y4 g+ D( U
}
# C2 c1 | Z/ k2 @ write_sfm(4,shi);
/ P: ~9 D3 F1 a% J5 m) ^/ r }
+ X) j0 a4 e2 p2 s# j( w write_sfm(7,fen);' F: k. ]) B3 s5 m4 C, n
}0 K0 O' N- I9 U
write_sfm(10,miao);
; V2 `$ v1 C, U( A' R8 d 7 e6 |/ ~1 q0 s' {$ w" ~$ y" s
} 6 z$ K8 c# U* o+ Z" {- r p( |
}
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发表于 2019-1-18 13:48
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