51单片机开发练习（keil代码)

问题遇到的现象和发生背景

目前歌曲的keil代码没有问题，问题集中在如何将数码管和歌曲在开发板上同时显示。

问题相关代码，请勿粘贴截图

运行结果及报错内容

开发板播放歌曲的同时，数码管显示不出数字

我的解答思路和尝试过的方法

和蜂鸣器与数码管的原理一样吗?

我想要达到的结果

#include <reg52.h>
sbit beep = P2^3;
unsigned char timer0H, timer0L, time;

code unsigned char FREQH[] = {
0xF2, 0xF3, 0xF5, 0xF5, 0xF6, 0xF7, 0xF8,
0xF9, 0xF9, 0xFA, 0xFA, 0xFB, 0xFB, 0xFC, 0xFC,
0xFC, 0xFD, 0xFD, 0xFD, 0xFD, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFF};

code unsigned char FREQL[] = {
0x42, 0xC1, 0x17, 0xB6, 0xD0, 0xD1, 0xB6,
0x21, 0xE1, 0x8C, 0xD8, 0x68, 0xE9, 0x5B, 0x8F,
0xEE, 0x44, 0x6B, 0xB4, 0xF4, 0x2D,
0x47, 0x77, 0xA2, 0xB6, 0xDA, 0xFA, 0x16};

code unsigned char song[] = {
5, 2, 2, 6, 2, 2, 5, 2, 2, 4, 2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 6, 5, 1, 6,
1, 2, 2, 3, 2, 2, 1, 3, 2, 7, 2, 2, 6, 2, 3, 3, 2, 1, 5, 2, 12,
6, 2, 2, 7, 2, 2, 6, 2, 2, 5, 2, 2, 4, 2, 2, 3, 2, 2, 2, 2, 6, 6, 1, 6,
7, 1, 2, 6, 1, 2, 5, 1, 2, 5, 2, 2, 1, 2, 3, 2, 2, 1, 3, 2, 12,
5, 2, 2, 6, 2, 2, 5, 2, 2, 4, 2, 2, 3, 2, 2, 2, 2, 2, 1, 2, 6, 5, 1, 6,
1, 2, 2, 3, 2, 2, 1, 3, 2, 7, 2, 2, 2, 3, 3, 1, 3, 1, 6, 2, 12,
1, 3, 2, 7, 2, 2, 6, 2, 2, 5, 2, 6,
6, 2, 2, 5, 2, 2, 4, 2, 2, 3, 2, 6,
7, 1, 4, 6, 1, 2, 5, 1, 4, 2, 2, 2, 1, 2, 12,
8, 2, 2, 2, 3, 2, 3, 3, 2, 2, 3, 2, 8, 2, 2, 6, 2, 2, 7, 2, 2, 6, 2, 3, 3, 2, 1, 5, 2, 12,
8, 2, 2, 2, 3, 2, 3, 3, 2, 2, 3, 2, 8, 2, 2, 6, 2, 2, 7, 2, 2, 5, 2, 3, 3, 2, 1, 6, 2, 12,
5, 2, 2, 4, 2, 2, 3, 2, 2, 2, 2, 6, 7, 1, 2, 6, 1, 2, 5, 1, 2, 3, 2, 6,4, 2, 6, 2, 2, 4, 1, 2, 2,1, 2, 10,
};

void t0int() interrupt 1
{
TR0 = 0;
beep = !beep;
TH0 = timer0H;
TL0 = timer0L;
TR0 = 1;
}

void delay(unsigned char t)
{
unsigned char t1;
unsigned long t2;
for(t1 = 0; t1 < t; t1++)
for(t2 = 0; t2 < 4000; t2++);
TR0 = 0;
}

void sing()
{
TH0 = timer0H;
TL0 = timer0L;
TR0 = 1;
delay(time);
}

void main(void)
{
unsigned char k, i;
TMOD = 1;
ET0 = 1;
EA = 1;
while(1)
{
i = 0;
time = 1;
while(time)
{
k = song[i] + 7 * song[i + 1] - 1;
timer0H = FREQH[k];
timer0L = FREQL[k];
time = song[i + 2];
i += 3;
sing();
}
}
}
(这是歌曲代码)