蜂鸣器
介绍
驱动电路
ULN2003
键盘与音符对照
音符与频率对照
简谱
独立按键触发蜂鸣器按时长发声
Buzzer.c
#include <REGX52.H>
#include "Delay.h"
#include "intrins.h"
//蜂鸣器端口
sbit BEEP=P2^5;
/**
* @brief 蜂鸣器私有延时函数,延时500us
* @param 无
* @retval 无
*/
void Buzzer_Delay500us(void) //@12.000MHz
{
unsigned char data i;
_nop_();
i = 247;
while (--i);
}
/**
* @brief 蜂鸣器发声
* @param ms 发声的时长
* @retval 无
*/
void Buzzer_Time(unsigned int ms)
{
unsigned int i;
for(i=0;i<ms*2;i++)
{
BEEP=!BEEP;
Buzzer_Delay500us();
}
}
Buzzer.h
#ifndef __BUZZER_H__
#define __BUZZER_H__
void Buzzer_Time(unsigned int ms);
#endif
main.c
#include <REGX52.H>
#include "Delay.h"
#include "Key.h"
#include "Nixie.h"
#include "Buzzer.h"
unsigned char KeyNum;
void main()
{
while(1)
{
KeyNum=Key();
if(KeyNum)
{
Buzzer_Time(100);
}
}
}
蜂鸣器播放小星星
Timer0.c
#include <REGX52.H>
/**
* @brief 定时器0初始化,1毫秒@12.000MHz
* @param 无
* @retval 无
*/
void Timer0_Init(void)
{
TMOD &= 0xF0; //设置定时器模式
TMOD |= 0x01; //设置定时器模式
TL0 = 0x18; //设置定时初始值
TH0 = 0xFC; //设置定时初始值
TF0 = 0; //清除TF0标志
TR0 = 1; //定时器0开始计时
ET0=1;
EA=1;
PT0=0;
}
/* 定时器中断函数模板
void Timer0_Routine() interrupt 1
{
static unsigned int T0Count;
TL0 = 0x18;
TH0 = 0xFC;
T0Count++;
if(T0Count>=1000)
{
T0Count=0;
}
}
*/
Timer0.h
#ifndef __TIMER0_H__
#define __TIMER0_H__
void Timer0_Init(void);
#endif
main.c
#include <REGX52.H>
#include "Delay.h"
#include "Timer0.h"
#define SPEED 250
//蜂鸣器端口
sbit BEEP=P2^5;
unsigned int FreqTable[]={
0,
63628,63731,63835,63928,64021,64103,64185,64260,64331,64400,64463,64528,
64580,64633,64684,64732,64777,64820,64860,64898,64934,64968,65000,65030,
65058,65085,65110,65134,65157,65178,6519865217,65235,65252,65268,65283,
};
unsigned char Music[]={
13,4,
13,4,
20,4,
20,4,
22,4,
22,4,
20,4+4,
0,4,
18,4,
18,4,
17,4,
17,4,
15,4,
15,4,
13,4+4,
};
unsigned char FreqSelect,MusicSelect;
void main()
{
Timer0_Init();
while(1)
{
if(MusicSelect<sizeof(Music))
{
FreqSelect=Music[MusicSelect++];
Delay(SPEED/4*Music[MusicSelect++]);
TR0=0;
Delay(5);
TR0=1;
}
else
{
MusicSelect=0;
}
}
}
void Timer0_Routine() interrupt 1
{
if(FreqTable[FreqSelect])
{
TL0 = FreqTable[FreqSelect]%256;
TH0 = FreqTable[FreqSelect]/256;
BEEP=!BEEP;
}
}
蜂鸣器播放天空之城
main.c
#include <REGX52.H>
#include "Delay.h"
#include "Timer0.h"
#define SPEED 250
#define P 0
#define L1 1
#define L1_ 2
#define L2 3
#define L2_ 4
#define L3 5
#define L4 6
#define L4_ 7
#define L5 8
#define L5_ 9
#define L6 10
#define L6_ 11
#define L7 12
#define M1 13
#define M1_ 14
#define M2 15
#define M2_ 16
#define M3 17
#define M4 18
#define M4_ 19
#define M5 20
#define M5_ 21
#define M6 22
#define M6_ 23
#define M7 24
#define H1 25
#define H1_ 26
#define H2 27
#define H2_ 28
#define H3 29
#define H4 30
#define H4_ 31
#define H5 32
#define H5_ 33
#define H6 34
#define H6_ 35
#define H7 36
//蜂鸣器端口
sbit BEEP=P2^5;
unsigned int FreqTable[]={
0,
63628,63731,63835,63928,64021,64103,64185,64260,64331,64400,64463,64528,
64580,64633,64684,64732,64777,64820,64860,64898,64934,64968,65000,65030,
65058,65085,65110,65134,65157,65178,6519865217,65235,65252,65268,65283,
};
//乐谱
unsigned char code Music[]={
//音符,时值,
//1
P, 4,
P, 4,
P, 4,
M6, 2,
M7, 2,
H1, 4+2,
M7, 2,
H1, 4,
H3, 4,
M7, 4+4+4,
M3, 2,
M3, 2,
//2
M6, 4+2,
M5, 2,
M6, 4,
H1, 4,
M5, 4+4+4,
M3, 4,
M4, 4+2,
M3, 2,
M4, 4,
H1, 4,
//3
M3, 4+4,
P, 2,
H1, 2,
H1, 2,
H1, 2,
M7, 4+2,
M4_,2,
M4_,4,
M7, 4,
M7, 8,
P, 4,
M6, 2,
M7, 2,
//4
H1, 4+2,
M7, 2,
H1, 4,
H3, 4,
M7, 4+4+4,
M3, 2,
M3, 2,
M6, 4+2,
M5, 2,
M6, 4,
H1, 4,
//5
M5, 4+4+4,
M2, 2,
M3, 2,
M4, 4,
H1, 2,
M7, 2+2,
H1, 2+4,
H2, 2,
H2, 2,
H3, 2,
H1, 2+4+4,
//6
H1, 2,
M7, 2,
M6, 2,
M6, 2,
M7, 4,
M5_,4,
M6, 4+4+4,
H1, 2,
H2, 2,
H3, 4+2,
H2, 2,
H3, 4,
H5, 4,
//7
H2, 4+4+4,
M5, 2,
M5, 2,
H1, 4+2,
M7, 2,
H1, 4,
H3, 4,
H3, 4+4+4+4,
//8
M6, 2,
M7, 2,
H1, 4,
M7, 4,
H2, 2,
H2, 2,
H1, 4+2,
M5, 2+4+4,
H4, 4,
H3, 4,
H3, 4,
H1, 4,
//9
H3, 4+4+4,
H3, 4,
H6, 4+4,
H5, 4,
H5, 4,
H3, 2,
H2, 2,
H1, 4+4,
P, 2,
H1, 2,
//10
H2, 4,
H1, 2,
H2, 2,
H2, 4,
H5, 4,
H3, 4+4+4,
H3, 4,
H6, 4+4,
H5, 4+4,
//11
H3, 2,
H2, 2,
H1, 4+4,
P, 2,
H1, 2,
H2, 4,
H1, 2,
H2, 2+4,
M7, 4,
M6, 4+4+4,
P, 4,
};
unsigned char FreqSelect,MusicSelect;
void main()
{
Timer0_Init();
while(1)
{
if(MusicSelect<sizeof(Music))
{
FreqSelect=Music[MusicSelect++];
Delay(SPEED/4*Music[MusicSelect++]);
TR0=0;
Delay(5);
TR0=1;
}
else
{
MusicSelect=0;
}
}
}
void Timer0_Routine() interrupt 1
{
if(FreqTable[FreqSelect])
{
TL0 = FreqTable[FreqSelect]%256;
TH0 = FreqTable[FreqSelect]/256;
BEEP=!BEEP;
}
}
标签:15,H2,H3,H1,M7,蜂鸣器,include,define
From: https://www.cnblogs.com/mzx233/p/17841974.html