单片机音乐播放控制不了

ID:277480 · 发表于 2018-4-5 18:24

大神门帮我看看这个程序，仿真时一运行音乐就开始播放了，我想通过一个按键来控制播放，可是我不管怎么加条件还是控制不了，急急急

#include "reg51.h"
unsigned char Count;
sbit _Speak =P1^0 ;
unsigned char code SONG[] ={    //祝你平安
0x26,0x20,0x20,0x20,0x20,0x20,0x26,0x10,0x20,0x10,0x20,0x80,0x26,0x20,0x30,0x20,
0x30,0x20,0x39,0x10,0x30,0x10,0x30,0x80,0x26,0x20,0x20,0x20,0x20,0x20,0x1c,0x20,
0x20,0x80,0x2b,0x20,0x26,0x20,0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x80,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x60,0x40,0x10,0x39,0x10,0x26,0x20,
0x30,0x20,0x30,0x20,0x39,0x10,0x26,0x10,0x26,0x80,0x26,0x20,0x2b,0x10,0x2b,0x10,
0x2b,0x20,0x30,0x10,0x39,0x10,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x20,
0x20,0x10,0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x18,0x20,0x18,0x20,0x26,0x20,
0x20,0x20,0x20,0x40,0x26,0x20,0x2b,0x20,0x30,0x20,0x30,0x20,0x1c,0x20,0x20,0x20,
0x20,0x80,0x1c,0x20,0x1c,0x20,0x1c,0x20,0x30,0x20,0x30,0x60,0x39,0x10,0x30,0x10,
0x20,0x20,0x2b,0x10,0x26,0x10,0x2b,0x10,0x26,0x10,0x26,0x10,0x2b,0x10,0x2b,0x80,
0x18,0x20,0x18,0x20,0x26,0x20,0x20,0x20,0x20,0x60,0x26,0x10,0x2b,0x20,0x30,0x20,
0x30,0x20,0x1c,0x20,0x20,0x20,0x20,0x80,0x26,0x20,0x30,0x10,0x30,0x10,0x30,0x20,
0x39,0x20,0x26,0x10,0x2b,0x10,0x2b,0x20,0x2b,0x40,0x40,0x10,0x40,0x10,0x20,0x10,
0x20,0x10,0x2b,0x10,0x26,0x30,0x30,0x80,0x00};

void Time0_Init()
{
TMOD = 0x01;
IE = 0x82;
TH0  = 0xD8;
TL0  = 0xEF;  //12MZ晶振，10ms
}

void Time0_Int() interrupt 1
{
TH0 = 0xD8;
TL0 = 0xEF;
Count++; //长度加1
}

/*-------------------------------------------------
功能:1MS延时子程序
-------------------------------------------------*/
void Delay_xMs(unsigned int x)
{
unsigned int i,j;
for( i =0;i < x;i++ )
{
      for( j =0;j<3;j++ );
}
}

void Play_Song(unsigned char i)
{
unsigned char Temp1,Temp2;
unsigned int Addr;
Count = 0;    //中断计数器清0
Addr = i * 217;
while(1)
{
  Temp1 = SONG[Addr++];
   if ( Temp1 == 0xFF )       //休止符
   {
   TR0 = 0;
   Delay_xMs(100);
   }
   else if ( Temp1 == 0x00 ) //歌曲结束符
   {
   return;
   }
   else
   {
   Temp2 = SONG[Addr++];
   TR0 = 1;
   while(1)
   {
   _Speak = ~_Speak;
   Delay_xMs(Temp1);
   if ( Temp2 == Count )
   {
      Count = 0;
      break;
   }
   }
   }
}
}
/*-------------------------------------------------
功能:主程序
-------------------------------------------------*/
void main()
{
Time0_Init(); //定时器0中断初始化
while(1)
{
  Play_Song(0);  //播放
}
}

ID:160834 · 发表于 2018-4-6 13:07

在你 sbit  _Speak =P1^0 ; 下面加一个按钮定义。 sbit KEY1 =P1^1;

void main()
{
Time0_Init(); //定时器0中断初始化
while(1)
{
if (KEY1 == 0)
{
   //这里可以加个延时作消抖。
   Play_Song(0);  //播放
   }
  }
}

你的程序已仿真试过。没有问题。程序加上红色部分就可以一个按钮控制播了。

ID:277480 · 发表于 2018-4-6 20:18

QIANLILI 发表于 2018-4-6 13:07
在你 sbit _Speak =P1^0 ; 下面加一个按钮定义。 sbit KEY1 =P1^1;

void main()

好的谢谢

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