Question

单片机proteus 仿真，怎么数码管显示不出来呢

#include<reg52.h>

#define uint unsigned int
#define uchar unsigned char

void display(uchar, uchar, uchar);
void delay(uint);

sbit dula = P2^6;
sbit wela = P2^7;
uchar bai = 0,shi = 0, ge = 0;
uchar code smg[]={0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};

void main()
{
uchar number = 223;
bai = number/100;
shi = number%100/10;
ge = number%10;
while(1)
{
display(bai, shi, ge);
}
}

void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}

void display(uchar bai, uchar shi, uchar ge)
{
dula = 1;
P0 = smg[ge];
dula = 0;

wela = 1;
P0 = 0xfb;
wela = 0;
delay(5);

dula = 1;
P0 = smg[shi];
dula = 0;

wela = 1;
P0 = 0xfd;
wela = 0;
delay(5);

dula = 1;
P0 = smg[bai];
dula = 0;

wela = 1;
P0 = 0xfe;
wela = 0;
delay(5);
}
好像加不进去啊

Answer 1

void display(uchar bai, uchar shi, uchar ge)

{

dula = 1;

P0 = smg[ge];

dula = 0;

 

wela = 1;

P0 = 0xfb;

wela = 0;

delay(5);

P0=0x00;    //消隐

dula = 1;

P0 = smg[shi];

dula = 0;

 

wela = 1;

P0 = 0xfd;

wela = 0;

delay(5);

P0=0x00; //消隐

dula = 1;

P0 = smg[bai];

dula = 0;

  

wela = 1;

P0 = 0xfe;

wela = 0;

delay(5);

P0=0x00; //消隐

}

Answer 2

程序似乎没错，看看硬件吧。数码管共阴共阳是否接错！

追问

没接错啊，数码管就只有三段亮，一个数一段，但是如果把延迟调长一点 会显示出来但是会闪，那样没有同时显示的“错觉”。

Answer 3

不知，你这个线路是怎么接的呢？有图纸吗，也许你的电路有问题的

追问

好像加不进图片啊