5-LED模擬交通燈單片機(jī)C語(yǔ)言程序設(shè)計(jì)實(shí)訓(xùn)100例

2369353531

#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
* ?! S2 w7 f- n/ ]sbit RED_A=P0^0; //東西向燈
sbit YELLOW_A=P0^1;
  {0 r- G9 x+ c" h0 w* S0 gsbit GREEN_A=P0^2;
3 }& ?7 y4 A# n! Z. j  r2 u% x+ Vsbit RED_B=P0^3; //南北向燈
sbit YELLOW_B=P0^4;
sbit GREEN_B=P0^5;
uchar Flash_Count=0,Operation_Type=1; //閃爍次數(shù)，操作類型變量  
) Y  o: V" i2 g! n' M: M# J
; X9 C+ A( p5 f6 A- H//延時(shí)
void DelayMS(uint x)
{
uchar i;
# u8 s6 I' q4 P5 w; }4 P2 awhile(x--) for(i=0;i<120;i++);
}
3 }; t; ]' [& D: q//交通燈切換
) Z. U! U0 s3 D6 t) E' a6 b) ]void Traffic_Light()
{
. A' H" [! p- F& [switch(Operation_Type)
{
case 1: //東西向綠燈與南北向紅燈亮
8 K( m, u0 ^) F  W: a: e  P4 VRED_A=1;YELLOW_A=1;GREEN_A=0;
RED_B=0;YELLOW_B=1;GREEN_B=1;
, p5 U! T2 D+ S% y- ^: IDelayMS(2000);
; ~$ }$ h1 k* E2 J* H; WOperation_Type=2;
break;
! F& o$ Q8 ^- g9 hcase 2: //東西向黃燈閃爍，綠燈關(guān)閉
DelayMS(300);
, J3 l7 G% c% O& o7 ]+ cYELLOW_A=~YELLOW_A;GREEN_A=1;
if(++Flash_Count!=10) return; //閃爍 5 次
' w; E$ V  }: D- |7 i1 t2 ^6 eFlash_Count=0;
Operation_Type=3;
break;
8 `% E6 A6 n: ^0 Ycase 3: //東西向紅燈，南北向綠燈亮
RED_A=0;YELLOW_A=1;GREEN_A=1;
RED_B=1;YELLOW_B=1;GREEN_B=0;
3 t" l+ m) f. v( ]. JDelayMS(2000);
8 F/ q0 Y5 M' g; ]" i( Y2 qOperation_Type=4;
break;
+ g+ v- s0 Z% a* T  Acase 4: //南北向黃燈閃爍 5 次
DelayMS(300);
6 `; f/ G" e% z( CYELLOW_B=~YELLOW_B;GREEN_B=1;
0 @1 L# F4 m" f, ~' s7 cif(++Flash_Count!=10) return;
Flash_Count=0;
Operation_Type=1;
9 H; \* T8 t2 v( E}
}
//主程序
+ E: X/ k4 D% Wvoid main()
{
while(1) Traffic_Light();
: }8 _1 @$ w3 G/ b1 W2 ]1 w}  



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