真心求助,自己正在做的一個(gè)單片機(jī)交通燈實(shí)驗(yàn)

ID:1043225 · 發(fā)表于 2022-10-4 01:04

題主剛剛休學(xué)兩年回來讀大三，有點(diǎn)笨基礎(chǔ)也薄弱，學(xué)校布置了一個(gè)帶救護(hù)車的交通燈實(shí)驗(yàn)，自己又剛剛學(xué)習(xí)了數(shù)組和計(jì)時(shí)器，想先至少把無中斷的信號(hào)燈制作出來，學(xué)校為了學(xué)生方便計(jì)算規(guī)定的晶振是6MHz，這里是我自己設(shè)想的交通燈代碼，采用的是C語(yǔ)言，想法是通過計(jì)時(shí)器（比較偷懶的）控制燈的切換，延時(shí)就直接用數(shù)組里后續(xù)時(shí)刻相同的亮燈代替了，但是程序做出來之后，導(dǎo)入進(jìn)proteus做仿真，燈居然是全亮的，令我想不明白。我認(rèn)為應(yīng)當(dāng)是我自學(xué)的時(shí)候遺漏了關(guān)鍵的51電路知識(shí)，但又不知從何找起，還請(qǐng)各路大神幫我看看到底是我編程問題還是我畫的電路出了大毛病，謝過各位大神了！

單片機(jī)源程序如下:
#include<reg52.h>
unsigned char code Ledchar[]={
0x81,0x81,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,
0x01,0x01,0x41,0x41,0x01,0x01,0x41,0x41,0x01,0x01,0x41,0x41,0x01,0x01,0x41,0x41,
0x01,0x01,0x41,0x41,0x81,0x81,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,
0x80,0x80,0x82,0x82,0x80,0x80,0x82,0x82,0x80,0x80,0x82,0x82,0x80,0x80,0x82,0x82,
0x80,0x80,0x82,0x82};
void mian()
{
            unsigned char cnt = 0;
            unsigned char sec = 0;
            TMOD = 0x01;
            TH0 = 0x3C;
            TL0 = 0xB0;
            TR0 = 1;
            ET0 = 1;
            EA = 1;
            while(1)
            {
                              if(TF0 == 1)
                              {
                                             TF0 = 0;
                                             TH0 = 0x3C;
                                             TL0 = 0xB0;
                                             cnt++;P0 = Ledchar[sec];
                                             if(cnt>=10)
                                             {
                                                            cnt = 0;

                                                            sec++;
                                                            if(sec>=64)
                                                            {
                                                                              sec = 0;
                                                            }
                                             }
                              }
            }
} P@Y[[7S3LCW39BW%[0[{PPG.png

簡(jiǎn)化后單獨(dú)的交通燈

ID:1043225 · 發(fā)表于 2022-10-4 01:07

本帖最后由 ValkyrUmbra 于 2022-10-4 08:28 編輯

程序截圖也發(fā)給大家方便瀏覽orz，早上起來再試了一下別的電路，發(fā)現(xiàn)P0口都是全灰色低電平的，懷疑是程序有問題
K]`37C@)[MC@`JOI}5E~1$T.png

ID:213173 · 發(fā)表于 2022-10-4 09:24

樓主代碼主函數(shù)名錯(cuò)誤，燈排列要與數(shù)組相對(duì)應(yīng)。

無標(biāo)題.jpg

#include<reg52.h>
unsigned char code Ledchar[]={
0x81,0x81,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x21,0x01,0x01,0x41,0x41,
0x01,0x01,0x41,0x41,0x01,0x01,0x41,0x41,0x01,0x01,0x41,0x41,0x01,0x01,0x41,0x41,
0x81,0x81,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x84,0x80,0x80,0x82,0x82,
0x80,0x80,0x82,0x82,0x80,0x80,0x82,0x82,0x80,0x80,0x82,0x82,0x80,0x80,0x82,0x82};
//void mian()
void main()
{
unsigned char cnt = 0;
unsigned char sec = 0;
TMOD = 0x01;
TH0 = 0x3C;
TL0 = 0xB0;
TR0 = 1;
TF0 = 0;
// ET0 = 1;
// EA = 1;
P0 = 0x42;
while(1)
{
if(TF0 == 1)
{
TF0 = 0;
TH0 = 0x3C;
TL0 = 0xB0;
P0 = Ledchar[sec];
cnt++;
if(cnt>=10)
{
cnt = 0;
sec++;
if(sec>=64)
{
sec = 0;
}
}
}
}
}

復(fù)制代碼

ID:1043225 · 發(fā)表于 2022-10-4 18:08

wulin 發(fā)表于 2022-10-4 09:24
樓主代碼主函數(shù)名錯(cuò)誤，燈排列要與數(shù)組相對(duì)應(yīng)。

原來是這個(gè)問題噗（）感謝您！幫大忙了！

ID:1086350 · 發(fā)表于 2023-7-1 10:47

請(qǐng)問這個(gè)要分時(shí)控制嗎

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