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標(biāo)題: 網(wǎng)上買51開(kāi)發(fā)板，自學(xué)單片機(jī)，寫了一個(gè)蜂鳴器發(fā)聲的程序，下載進(jìn)去蜂鳴器不響。程.... [打印本頁(yè)]

作者: 九玖玖 時(shí)間: 2019-1-13 18:03
標(biāo)題: 網(wǎng)上買51開(kāi)發(fā)板，自學(xué)單片機(jī)，寫了一個(gè)蜂鳴器發(fā)聲的程序，下載進(jìn)去蜂鳴器不響。程....
#include<reg52.h>
sbit BUZZ =P1^6;
unsigned int code NoteFrequ[]={523,587,659,698,784,880,988,1047,1175,1319,1397,1568,1760,1976};
unsigned int code NoteReload[]={
65536-(11059200/12)/(523*2),
  65536-(11059200/12)/(587*2),
  65536-(11059200/12)/(659*2),
  65536-(11059200/12)/(698*2),
  65536-(11059200/12)/(784*2),
  65536-(11059200/12)/(880*2),
  65536-(11059200/12)/(988*2),
  65536-(11059200/12)/(1047*2),
  65536-(11059200/12)/(1175*2),
  65536-(11059200/12)/(1319*2),
  65536-(11059200/12)/(1397*2),
  65536-(11059200/12)/(1568*2),
  65536-(11059200/12)/(1760*2),
  65536-(11059200/12)/(1976*2),
};
bit enable =1;
  bit tmrflag=0;
  unsigned char T0RH=0xFF;
unsigned char T0RL=0x00;
void PlayTwoTiger();
void main()
{
unsigned int i;

EA=1;
TMOD=0x01;
TH0=T0RH;
TL0=T0RL;
ET0=1;
TR0=1;

while(1)
{
  PlayTwoTiger();
  for(i=0;i<40000;i++);
}
}
void PlayTwoTiger()
{
unsigned char beat;
unsigned char note;
unsigned int time=0;
unsigned int beatTime=0;
unsigned int soundTime=0;
unsigned char code  TwoTigerNote[]={
   1, 2, 3, 1, 1, 2, 3, 1, 3,4,5,  3,4,5,
   5,6,5,4,3,1,  5,6,5,4,3,1,  1,5,1,  1,5,1,
};
unsigned char code  TwoTigerBeat[]={4,  4 , 4  ,4,    4 , 4 , 4 , 4,    4,4,8,    4,4,8,
                                 3,1,3,1 ,4, 4,    3,1,3,1,4,4,    4,4,8,    4,4,8,
};
  for(beat=0;beat<sizeof(TwoTigerNote); )
{
while(!tmrflag);

{
beep=0;
delay(1);
beep=1;
delay(1);
}
tmrflag=0;
if(time==0)
{
note = TwoTigerNote[beat] - 1;
  T0RH = NoteReload[note]>> 8;
  T0RL = NoteReload[note];
  beatTime = (TwoTigerBeat[beat] * NoteFrequ[note])>>2;

  soundTime = beatTime - (beatTime>>2);
  enable = 1;
  time++;
}
else
{
  if(time >=beatTime)
  {
time =0;
beat++;
  }
  else
  {
time++;
if(time==soundTime)
{
enable=0;
}
}
}
}
}
void InterruptTimer0() interrupt 1
{
TH0=T0RH;
TL0=T0RL;
tmrflag=1;
if(enable)
  BUZZ=~BUZZ;
else
  BUZZ=1;
}

作者: 九玖玖 時(shí)間: 2019-1-13 18:04
有懂的大神幫忙看下啊，謝謝。

作者: 呵呵公園 時(shí)間: 2019-1-14 00:10
定時(shí)器那里貌似有問(wèn)題，我建議新手干脆用STC下載器里的軟件延時(shí)計(jì)算器算出來(lái)，我是這個(gè)學(xué)期才開(kāi)的單片機(jī)課如果說(shuō)錯(cuò)了請(qǐng)多包涵。

作者: shuisheng 時(shí)間: 2019-1-14 01:56
給一個(gè)能發(fā)聲音的程式你燒進(jìn)去看看，看是外圍電路沒(méi)接好還是程式本聲的問(wèn)題，曼慢來(lái)，別急！

#include<reg52.h>
sbit SPK=P1^6; //定義喇叭端口
unsigned char frq;

void DelayUs2x(unsigned char t);//函數(shù)聲明
void DelayMs(unsigned char t);

void Init_Timer0(void)
{
TMOD |= 0x01;    //使用模式1，16位定時(shí)器，
EA=1;          //總中斷打開(kāi)
ET0=1;          //定時(shí)器中斷打開(kāi)
TR0=1;          //定時(shí)器開(kāi)關(guān)打開(kāi)
}

main()
{
unsigned char i;
Init_Timer0(); //初始化定時(shí)器
while(1)
   {
frq=0;
for(i=0;i<60;i++)//播放1s左右一種頻率
   {
   DelayMs(10);
   }
frq=100;
for(i=0;i<60;i++)//播放1s左右另外一種頻率
   {
   DelayMs(10);
   }

   }
}

void DelayUs2x(unsigned char t)
{
while(--t);
}

void DelayMs(unsigned char t)
{

while(t--)
{
   //大致延時(shí)1mS
   DelayUs2x(245);
   DelayUs2x(245);
}
}

            //  定時(shí)器中斷子程序
void Timer0_isr(void) interrupt 1
{
TH0=0xfe;    //重新賦值
TL0=frq;       //低8位值在主程序中不斷累加
SPK=!SPK;       //端口電平取反
}

作者: jinsheng7533967 時(shí)間: 2019-2-13 20:49

呵呵公園發(fā)表于 2019-1-14 00:10
定時(shí)器那里貌似有問(wèn)題，我建議新手干脆用STC下載器里的軟件延時(shí)計(jì)算器算出來(lái)，我是這個(gè)學(xué)期才開(kāi)的單片機(jī)課 ...

說(shuō)出自己的想法這很好

作者: wulin 時(shí)間: 2019-2-14 13:52
1.你首先確認(rèn)開(kāi)發(fā)板上是無(wú)源蜂鳴器，否則響了也不是你想要的音樂(lè)聲。
2.你的程序不能通過(guò)編譯，蜂鳴器端口定義名稱與程序中指令不符，delay延時(shí)程序漏寫。修改后經(jīng)仿真可以發(fā)出音樂(lè)聲。

#include<reg52.h>
sbit BUZZ =P1^6;
unsigned int code NoteFrequ[]={523,587,659,698,784,880,988,1047,1175,1319,1397,1568,1760,1976};
unsigned int code NoteReload[]={
65536-(11059200/12)/(523*2),
  65536-(11059200/12)/(587*2),
  65536-(11059200/12)/(659*2),
  65536-(11059200/12)/(698*2),
  65536-(11059200/12)/(784*2),
  65536-(11059200/12)/(880*2),
  65536-(11059200/12)/(988*2),
  65536-(11059200/12)/(1047*2),
  65536-(11059200/12)/(1175*2),
  65536-(11059200/12)/(1319*2),
  65536-(11059200/12)/(1397*2),
  65536-(11059200/12)/(1568*2),
  65536-(11059200/12)/(1760*2),
  65536-(11059200/12)/(1976*2),
};
bit enable =1;
bit tmrflag=0;
unsigned char T0RH=0xFF;
unsigned char T0RL=0x00;

void PlayTwoTiger();

void delay(unsigned int k)
{
unsigned int i,j;
for(i=k;i>0;i--)
for(j=110;j>0;j--);
}

void main()
{
unsigned int i;
EA=1;
TMOD=0x01;
TH0=T0RH;
TL0=T0RL;
ET0=1;
TR0=1;
while(1)
{
PlayTwoTiger();
for(i=0;i<40000;i++);
}
}
void PlayTwoTiger()
{
unsigned char beat;
unsigned char note;
unsigned int time=0;
unsigned int beatTime=0;
unsigned int soundTime=0;
unsigned char code  TwoTigerNote[]={
1, 2, 3, 1, 1, 2, 3, 1, 3,4,5,  3,4,5,
5,6,5,4,3,1,  5,6,5,4,3,1,  1,5,1,  1,5,1,};
unsigned char code  TwoTigerBeat[]={4,  4 , 4  ,4,    4 , 4 , 4 , 4,    4,4,8,    4,4,8,
3,1,3,1 ,4, 4,    3,1,3,1,4,4,    4,4,8,    4,4,8,};
for(beat=0;beat<sizeof(TwoTigerNote); )
{
while(!tmrflag);
{
BUZZ=0;
delay(1);
BUZZ=1;
delay(1);
}
tmrflag=0;
if(time==0)
{
note = TwoTigerNote[beat] - 1;
T0RH = NoteReload[note]>> 8;
T0RL = NoteReload[note];
beatTime = (TwoTigerBeat[beat] * NoteFrequ[note])>>2;
soundTime = beatTime - (beatTime>>2);
enable = 1;
time++;
}
else
{
if(time >=beatTime)
{
time =0;
beat++;
}
else
{
time++;
if(time==soundTime)
{
enable=0;
}
}
}
}
}
void InterruptTimer0() interrupt 1
{
TH0=T0RH;
TL0=T0RL;
tmrflag=1;
if(enable)
   BUZZ=~BUZZ;
else
   BUZZ=1;
}

作者: toby2006 時(shí)間: 2019-2-15 13:27
會(huì)不會(huì)是硬件的問(wèn)題啊？

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