51单片机用蜂鸣器播放歌曲

ID:422343 · 发表于 2018-11-7 15:09

#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++);
}
}

ID:371381 · 发表于 2018-12-29 15:30

请问，用到的蜂鸣器是无源的还是有源的

ID:316572 · 发表于 2019-3-5 20:33

感谢楼主分享，十分感谢

ID:724709 · 发表于 2020-4-8 12:22

子非鱼鱼发表于 2018-12-29 15:30
请问，用到的蜂鸣器是无源的还是有源的

肯定是无啊

ID:724709 · 发表于 2020-5-23 08:17

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51单片机用蜂鸣器播放歌曲

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