剛接觸單片機(jī)新手想請(qǐng)教大神們?nèi)绾涡薷倪@個(gè)交通燈程序

ID:864486 · 發(fā)表于 2020-12-21 20:38

之前都是自己看書(shū)學(xué)的單片機(jī)，今天我第一次接觸真正的實(shí)體，不是很熟悉板子，就是下面那個(gè)自己找了一個(gè)覺(jué)得還不錯(cuò)的交通燈程序研究，發(fā)現(xiàn)有幾個(gè)地方還是不太清楚，下面是程序源碼

想問(wèn)一下如何在以下條件下修改一下源碼
以前見(jiàn)過(guò)其他型號(hào)的試驗(yàn)臺(tái)，上面那個(gè)確實(shí)不太熟悉，最好也能分享一下連接思路，謝謝各位大神了，如有冒犯，還請(qǐng)諒解。

單片機(jī)源程序如下:

#include
#define uint unsigned int
#define uchar unsigned char
#define OFF 0 //定義燈泡開(kāi)關(guān)
#define ON 1
sbit ew_zx_red = P1^0; //東西直行紅黃綠
sbit ew_zx_yellow = P1^1;
sbit ew_zx_green = P1^2;
sbit ew_zz_red = P1^3; //東西左轉(zhuǎn)紅黃綠
sbit ew_zz_yellow = P1^4;
sbit ew_zz_green = P1^5;
sbit sn_zx_red = P2^0; //南北直行紅黃綠
sbit sn_zx_yellow = P2^1;
sbit sn_zx_green = P2^2;
sbit sn_zz_red = P2^3; //南北左轉(zhuǎn)紅黃綠
sbit sn_zz_yellow = P2^4;
sbit sn_zz_green = P2^5;
sbit seg_1 = P1^6; //東西數(shù)碼管位選開(kāi)關(guān)
sbit seg_2 = P1^7;
sbit seg_3 = P2^6; //南北數(shù)碼管位選開(kāi)關(guān)
sbit seg_4 = P2^7;
int time = 0; //計(jì)時(shí)器
int count = 0;
unsigned char SEG_CA[10] = {0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x90};
unsigned char SEG_CC[10] = {0x3f, 0x06, 0x5b, 0x1f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f};
void delay()
{
int i;
for(i = 0; i < 10; i++);
}
void display_ew(unsigned int num) //東西數(shù)字顯示
{
P0 = SEG_CA[num/10]; //點(diǎn)亮數(shù)字高位
seg_1 = ON;
delay();
seg_1 = OFF;
P0 = SEG_CA[num%10]; //點(diǎn)亮數(shù)字低位
seg_2 = ON;
delay();
seg_2 = OFF;
}
void display_sn(unsigned int num) //南北數(shù)字顯示
{
P0 = SEG_CA[num/10]; //點(diǎn)亮數(shù)字高位
seg_3 = ON;
delay();
seg_3 = OFF;
P0 = SEG_CA[num%10]; //點(diǎn)亮數(shù)字低位
seg_4 = ON;
delay();
seg_4 = OFF;
}
void display_ew_shan(unsigned int num) //東西3s 倒計(jì)時(shí)閃爍顯示
{
if(count < 2000)
display_ew(num);
else
{
seg_1 = OFF;
seg_2 = OFF;
}
}
void display_sn_shan(unsigned int num) //南北3s倒計(jì)時(shí)閃爍顯示
{
if(count < 2000)
display_sn(num);
else
{
seg_3 = OFF;
seg_4 = OFF;
}
}
void init()
{
P0 = 0x00;
P1 = 0x00;
P2 = 0x00;
EA = 0; //關(guān)總中斷
ET0 = 1; //開(kāi)定時(shí)器0中斷
TMOD = 0x02; //定時(shí)器0工作方式2
TL0 = 6; //定時(shí)250us
TH0 = 6;
EA = 1; //開(kāi)總中斷
TR0 = 1; //開(kāi)始定時(shí)
}
void main()
{
init();
while(1)
{
/*************************************************************
開(kāi)始東西直行綠燈亮，東西左轉(zhuǎn)紅燈亮27s，顯示綠燈倒計(jì)時(shí)30s
南北直行、左轉(zhuǎn)紅燈亮50s，顯示紅燈倒計(jì)時(shí)50s
*************************************************************/
while(time%100 < 27)
{
ew_zx_green = ON; //東西直行綠燈亮，顯示27s
ew_zx_yellow = OFF;
ew_zx_red = OFF;
display_ew(30 - time);
ew_zz_red = ON; //東西左轉(zhuǎn)紅燈亮
ew_zz_green = OFF;
ew_zz_yellow = OFF;
sn_zx_red = ON; //南北直行紅燈亮，顯示時(shí)間50s
sn_zx_yellow = OFF;
sn_zx_green = OFF;
display_sn(50 - time);
sn_zz_red = ON; //南北左轉(zhuǎn)紅燈亮，顯示時(shí)間50s
sn_zz_yellow = OFF;
sn_zx_green = OFF;
}
/*************************************************************
東西直行黃燈亮3s，倒計(jì)時(shí)開(kāi)始閃爍
東西左轉(zhuǎn)，南北方向不變
*************************************************************/
while(time%100 >= 27 && time%100 < 30)
{
ew_zx_yellow = ON; //東西直行黃燈亮 ,顯示時(shí)間3s
ew_zx_red = OFF;
ew_zx_green = OFF;
display_ew_shan(30 - time);
display_sn(50 - time);
}
/*************************************************************
東西左轉(zhuǎn)綠燈亮17s，直行紅燈亮，顯示綠燈倒計(jì)時(shí)20s
南北方向不變
*************************************************************/
while(time%100 >= 30 && time%100 < 47)
{
ew_zz_green = ON; //東西左轉(zhuǎn)綠燈亮，顯示時(shí)間17s
ew_zz_red = OFF;
ew_zz_yellow = OFF;
display_ew(50-time);
ew_zx_red = ON; //東西直行紅燈亮
ew_zx_yellow =OFF;
ew_zx_green = OFF;
display_sn(50-time); //南北繼續(xù)顯示倒計(jì)時(shí)
}
/*************************************************************
東西左轉(zhuǎn)黃燈亮3s，倒計(jì)時(shí)開(kāi)始閃爍 3s
東西直行，南北方向不變
*************************************************************/
while(time%100 >= 47 && time%100 < 50)
{
ew_zz_yellow = ON; //東西左轉(zhuǎn)黃燈亮，顯示時(shí)間3s
ew_zz_red = OFF;
ew_zz_green = OFF;
display_ew_shan(50-time);
display_sn(50-time); //南北繼續(xù)顯示倒計(jì)時(shí)
}
/*************************************************************
東西左轉(zhuǎn)紅燈亮50s，直行不變，顯示倒計(jì)時(shí)50s
南北直行綠燈亮27，左轉(zhuǎn)不變，顯示綠燈倒計(jì)時(shí)30s
*************************************************************/
while(time%100 >=50 && time%100 < 77)
{
sn_zx_green = ON; //南北直行綠燈亮，顯示時(shí)間27s
sn_zx_yellow = OFF;
sn_zx_red = OFF;
display_sn(80 - time);
ew_zz_red = ON; //東西左轉(zhuǎn)紅燈亮，顯示時(shí)間50s
ew_zz_yellow = OFF;
ew_zz_green = OFF;
display_ew(100 - time);
}
/*************************************************************
南北直行黃燈亮3s，左轉(zhuǎn)不變，顯示黃燈閃爍倒計(jì)時(shí)3s
東西不變
*************************************************************/
while(time%100 >= 77 && time%100 < 80)
{
sn_zx_yellow = ON; //南北直行黃燈亮，顯示時(shí)間3s
sn_zx_red = OFF;
sn_zx_green = OFF;
display_sn_shan(80 - time);
display_ew(100 - time);
}
/*************************************************************
南北左轉(zhuǎn)綠燈亮17s，直行不變，顯示綠燈倒計(jì)時(shí)20s
東西不變
*************************************************************/
while(time%100 >=80 && time%100 <97)
{
sn_zz_green = ON; //南北左轉(zhuǎn)綠燈亮，顯示17s
sn_zz_red = OFF;
sn_zz_yellow = OFF;
display_sn(100-time);
sn_zx_red = ON; //南北直行紅燈亮
sn_zx_yellow = OFF;
sn_zx_green = OFF;
display_ew(100 - time); //東西繼續(xù)倒計(jì)時(shí)
}
/*************************************************************
南北左轉(zhuǎn)黃燈亮17s，直行不變，顯示黃燈閃爍倒計(jì)時(shí)3s
東西不變
*************************************************************/
while(time%100 >= 97 && time<=100)
{
sn_zz_yellow = ON; //南北左轉(zhuǎn)黃燈亮，顯示時(shí)間3s
sn_zz_red = OFF;
sn_zz_green = OFF;
display_sn_shan(100 - time);
display_ew(100 - time); //東西繼續(xù)倒計(jì)時(shí)
}
}
}
void timer0() interrupt 1
{
count++;
if(count == 4000)
{
time++;
count = 0;
}
if(time > 100)
time = 0;
}

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