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#include<reg52.h> + _6 |' {9 y: x. c1 B, }( z
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sbit ADDRO=P1^0;, T, B7 u: Y; e x* t& ^
sbit ADDRl=P1^1;
4 C( R0 h; } u( n$ V! r# _" e# V% R$ Asbit ADDR3=P1^3;
1 P: y. R6 J9 a+ z) X$ ysbit ENLED=P1^4；
2 A4 h, Q6 ?' f+ S& _
1 v- @" J' J( U0 ~3 kunsigned char code LedChar[] = {& n1 n" B" W3 Y5 P
0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,
, s* x1 c# Q3 H2 L8 j 0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E1 A1 M+ t1 E f- W( t. m2 w
}; R) U$ O# X* o. m4 a; L
unsigned char LedBuff[6] =. `2 @8 ?8 m, j! E' r# l$ p! R" b
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
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void main()
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/ l1 ]* o/ ~/ N) D$ u unsigned char i = 0;! V& e3 Q1 W& B; v/ E" q
unsigned int cnt = 0;6 ~! u& L1 R" _3 R x
unsigned long sec =0;+ |' N, ]$ g: l9 M; o2 V
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; q* _2 n3 C* U- t; f ENLED = 0;; F+ z# Z9 _6 ~
ADDR3 = 1;
, |9 _7 k, U! L* t1 M4 r" \" h) h TMOD = 0x01;& m ?$ i8 Q/ I, U8 h
THO = 0xFC;' n, E% ]6 W4 D4 C- x S4 r6 G2 V
TL0 = 0x67;! v) Q0 k7 Q; B" `1 x. }9 @+ V
TR0 = 1;
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- {) y4 Z4 A/ f9 o" [5 r while(1)5 b Y" e* ^. J1 U6 R' V' ^
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if(TF0 == 1)
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0 ^7 E, s, q( T+ Y% v- | TF0 = 0;
Q! [. \6 O7 `2 @& n+ @* E TH0 = 0xFC;) \3 g7 k# D. e
TL0 = 0x67;
9 n$ D( u# ~/ q* ~ cnt++;
( A( i" I0 o5 j8 S if(cnt>= 1000); w: ^& f: N0 Y* q9 R
{
; {; A2 Q4 X+ @ cnt = 0;
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LedBuff[0] = LedChar[ sec % 10];
" r7 K3 H& j, ~& k4 K LedBuff[1] = LedChar[ sec/10 % 10];9 q& v/ K) Q2 m1 `8 R
LedBuff[2] = LedChar[ sec/100 % 10];
0 ^1 v0 n9 \/ p5 s, g+ | LedBuff[3] = LedChar[ sec/1000 % 10];/ ?: N2 L: b& q, U
LedBuff[4] = LedChar[ sec/10000 % 10];
. x: q! U+ L* \; {' f+ j) | LedBuff[5] = LedChar[ sec/100000 % 10];" v+ m: u2 K7 `. ~1 D7 H. @8 n
}
" }( ?7 ?$ e' p- c4 ~ switch(i)/ X0 p1 m/ v' b
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case 0: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedBuff[0]; break;6 `& u0 J8 o; w& X n ^
case 1: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedBuff[1]; break;3 k( s/ v# S; c+ K
case 2: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedBuff[2]; break;& @# W/ z0 \/ l9 r6 T0 ^! V
case 3: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedBuff[3]; break;0 a2 U! q3 |& t5 v
case 4: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedBuff[4]; break;3 E5 o" ~" e* z5 x6 {+ \$ f
case 5: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedBuff[5]; break;) g: z1 u, S7 Y) `2 c8 D
default: break;
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}
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}
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发表于 2018-11-27 09:12
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