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基于51单片机的74HC164驱动六位数码管动态显示程序
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#include<reg52.h>
- b4 G! z" c2 M- C3 l$ z# Y/ D#include<intrins.h>6 g9 y. o6 ]$ r, w- D
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#define uchar unsigned char
6 r7 d3 ^% `4 G& A: ~, b/ _#define uint unsigned int- x) g3 Z1 B! V( Y7 Q: D$ a
//74HC164
3 o& J. K' R; j5 ^ p- xsbit CLK=P1^0; // μíμçÆ½μ½¸ßμçƽ±ßÑØ′￥·￠5 b0 D7 O: ?2 z( L+ p
sbit MOSI=P1^1; // êy¾Yêäèë2 y' E- b1 M* x, |( n6 J
- @8 l0 b) H9 D$ b. H1 _unsigned char code Tab[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,5 |6 I! Y4 [$ y( y( h
0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71}; //12òõêyÂë1ü
; Y$ r% U* J: ]3 Hunsigned char DS_data[6];8 B U; |$ @/ c. w% e; c
/*****************************************************8 B. G7 A6 ~3 U3 c8 M, Y9 N' {
oˉêy1|Äü:êyÂë1üé¨ÃèÑóê±×óoˉêy4 i0 ?9 X8 F* ^5 z; I3 d
oˉêy1|Äü:Ñóê±1ms
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***************************************************/8 ?$ j2 k2 O4 A. ]
void delay1ms(): n" E* z7 j8 W- i
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unsigned char i,j;
3 @) D4 H W+ @/ ] for(i=0;i<10;i++)" f/ Q- ~$ t' J( d# l) e! v
for(j=0;j<33;j++)# O5 K% h0 K" i$ F; ^& o
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}
5 ~2 {6 A) G$ P7 b6 ^+ rvoid separatEDAta(unsigned long dat) // datÎa6λêy
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" y8 e2 |( b/ _) R, w( } DS_data[0]=dat%10;) O) T1 t: k7 @3 S! P; u! _$ |0 _
DS_data[1]=dat/10%10;
& d, j+ {. A9 G1 P' p DS_data[2]=dat/100%10;
. u, O0 c7 a6 h; y DS_data[3]=dat/1000%10;
7 V& U3 y+ M" M1 [- x5 ?- y DS_data[4]=dat/10000%10;
3 y* z0 L+ X$ d3 G U3 ^ DS_data[5]=dat/100000%10;3 ~2 f4 g1 y8 m, H+ n y: {
}
9 k- H4 e) v9 r0 jvoid write_164(unsigned char dat), S6 \4 X5 d* k
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unsigned char i;
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{
( u& {* }& t% _ CLK=0; . g. F6 V# w1 I: A2 d/ ^8 G# W
if(dat&0x80) MOSI=1;1 k( h0 |6 R" F8 g( g- n
else MOSI=0;
8 r7 w5 q& L" c( b ?5 N9 J9 @: E CLK=1;
' {; U* m5 D! S8 g dat<<=1; 3 \% }% c$ S3 j1 [: s5 Z# f+ @
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}
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" q! O0 Q# |0 E- Z- ?$ P! nvoid display()
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unsigned char i;; [4 D8 p: E, W1 t6 N
for(i=0;i<6;i++)
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7 k+ a+ A9 n* V O( | write_164(Tab[DS_data]);
: q* B* e9 |% r0 e; m P2=0x3f&(~(0x01<<i)); //êyÂë1üλ 12òõμíμçƽѡÖDseg1¶Ôó|P2.5 seg6¶Ôó|P2.05 q! P' ?5 Q" b U, W1 k2 A; g
delay1ms();
& ?7 }) }! c; O O% W3 B P2=0xff; //êyÂë1üÃe
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main()
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7 t s0 i6 f. ^ separateData(654321);
T: e1 _% p& \: [' a0 K while(1) + e8 |5 B, M- W8 W k; ]( J8 x
{
) {- w0 i+ u, v0 J6 A display();
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}
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![]()
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, l- ?3 ~; f6 K+ n% w0 z#include<reg52.h>4 R `) N3 X6 q; y% m4 a- A7 B
#include<intrins.h>% D# S6 ^$ r4 }
' w* Q& [" a+ B! J- |: d/ I#define uchar unsigned char
5 @' L7 G2 U# ?& c( U! Q. o Y#define uint unsigned int8 A- }) ?8 t9 b4 f6 B- s
//74HC164
( k6 |+ r! y- Jsbit CLK=P1^0; // 低电平到高电平边沿触发
+ I4 c1 L0 W* _/ J$ B' B- T. }+ U7 esbit MOSI=P1^1; // 数据输入
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unsigned char code Tab[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07, @9 e: S! V3 @ `. ^
0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71}; //共阴数码管
* J2 ^! S1 n! U+ Z+ hunsigned char DS_data[6];
3 m- J3 V6 U+ F# {; B% Y/ I- x# k8 Z/*****************************************************# m7 R; }) i j5 O3 d; ]# A4 @" n5 w
函数功能:数码管扫描延时子函数4 z3 W% ]3 c- \! [1 ` q
函数功能:延时1ms! n* F- \4 X |
& B* f; X+ F" m! p***************************************************/% w% v8 p, o% ^& a
void delay1ms()) [: V% U, c3 {. e
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unsigned char i,j;
1 k+ S! k: r9 h0 s+ C for(i=0;i<10;i++)
- Y+ @' o- v1 D2 s2 D# u for(j=0;j<33;j++)
" S( S: H: ~0 P; \9 | ;
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void separateData(unsigned long dat) // dat为6位数4 J2 O/ `- h6 @* ?. a& ]
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DS_data[0]=dat%10;0 C" M: h1 l M8 f) {) w* g
DS_data[1]=dat/10%10;% X( D$ o. R) f! V' s1 }
DS_data[2]=dat/100%10;
1 B9 U$ O5 T6 H( r% Q DS_data[3]=dat/1000%10;
3 F3 D- E/ F( G, n& S* e+ \. ?6 m4 E5 g DS_data[4]=dat/10000%10;
1 V6 Z& w& U8 e2 p5 D0 c& X- ?1 X DS_data[5]=dat/100000%10;# C. t' E$ K9 l0 \0 t
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void write_164(unsigned char dat)3 f% H9 U7 T' Y2 x
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unsigned char i;. A+ Z7 K4 K5 [" R6 v$ ^, P
for(i=0;i<8;i++)* E- Z$ U( G6 `+ [- W
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CLK=0; 4 s! J4 ?0 c7 L8 Z, s" |
if(dat&0x80) MOSI=1;$ ~. C" _7 _" ~( f6 ^3 Y
else MOSI=0;" H3 B! S2 I' b: B: k5 k4 P& r
CLK=1; / q3 ^, l" X5 Y
dat<<=1;
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void display()' ]- R4 H2 c' c+ f" H
{
4 K% e0 K% j# J7 O unsigned char i;# t1 @: B1 R' t. x: G
for(i=0;i<6;i++)
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# c# k7 F, S8 X- Z write_164(Tab[DS_data]);
- F! g# o% \ L$ J! h0 M P2=0x3f&(~(0x01<<i)); //数码管位 共阴低电平选中seg1对应P2.5 seg6对应P2.0
/ A5 I( T' J, k4 k* J6 m7 @$ m delay1ms();
% h6 y+ G; E) |$ z6 {. @ P2=0xff; //数码管灭
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}
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main()3 ~0 V1 N* B# Q( \5 F1 e
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separateData(654321);' A* x- ]) _8 d0 [ K$ i6 F
while(1) 6 A& r8 O' N# c. f" a. B
{
{+ m' B4 [% p) @ display();
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发表于 2019-1-31 13:58
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