Question

基于AT89C51的单片机设计

大佬们给个思路吧，要怎么写啊
大牛们，我需要汇编编的，还有电路图可以给一下

Answer 1

#include<reg51.h>
#define uchar unsigned char
uchar led[8]={0xfa,0xf5,0xaf,0x5f,0xaa,0x55,0x00,0xff};
uchar cnt,num;
void t0isr() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
cnt++;
if(cnt>=20)
    {
    cnt=0;
    num++;
    num%=8;
    P1=led[num];
    }
}
main()
{
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TR0=1;
ET0=1;
EA=1;
num=0;
P1=led[num];
while(1);
}