单片机音乐盒完整代码
该设计是使用C51单片机制作的音乐盒制作的一个音乐盒，可以实现进行歌曲的切换，暂停/播放。此外还增加了随机点歌，获取大气温湿度等功能。使用LCD1602显示器进行歌曲名称和大气温湿度的显示。将完整代码帖在下面，有需要的可以自己获取。完整代码可以在我的博客下面，我的资源下面进行下载使用。
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下面是一些实物图片
部分代码如下
main.c
#include "main.h"
#include "delay.h"
#include "beep.h"
uchar RH,RL,TH,TL;//定义变量用来存储温湿度变量的值
extern uchar timer1h, timer1l,time,K_Value,Singin_interface,Start,Stop;
extern char Number;
extern uchar code Player_Number1[9];
uchar KEY;//定义变量保存键值信息
//自定义1602显示心形字符
uchar code table1[]=
{ 0x03,0x07,0x0f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x18,0x1E,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x07,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,0x1f,
0x10,0x18,0x1c,0x1E,0x1E,0x1E,0x1E,0x1E,
0x0f,0x07,0x03,0x01,0x00,0x00,0x00,0x00,
0x1f,0x1f,0x1f,0x1f,0x1f,0x0f,0x07,0x01,
0x1f,0x1f,0x1f,0x1f,0x1f,0x1c,0x18,0x00,
0x1c,0x18,0x10,0x00,0x00,0x00,0x00,0x00,//心图案
};
//定义流水灯断码
uchar code LED1[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40};
//定时器初始化函数
void timer_init()
{
TMOD=0x11;//定时器0和1都工作再方式一
TH0=(65536-30000)/256;
TL0=(65536-30000)%256;
EA=1;//开总中断
//开定时器中断
ET0=1;
ET1=1;
TR1=0;//首先关闭定时器T1
TR0=1;//开启定时器T0
PT1=1;
PT0=0;
}
void main()
{
uchar i;
uchar flag1=0;
Player=1;
Last_Song=1;
Next_Song=1;
Choose_Song=1;//点歌按钮
Confirmation=1;//确定按钮
P0=0xff;
timer_init();
lcd_init ();
delay (50);
//向1602写入自定义字符
Write_CGRAM(0x40,table1);
//再1602上显示自定义字符
//显示字符的前四位
lcd_pos (0x0c);
for(i=0; i<4; i++)
{
lcd_wdat(i);
}
//显示自定义字符的后四位
lcd_pos (0x4c);
for(i=4; i<8; i++)
{
lcd_wdat(i);
}
//在1602上显示自定义布局
lcd_pos(0x00);
lcd_word("T:");
//温度
lcd_pos(0x04);
lcd_wdat(0xdF);
lcd_wdat('C');
//湿度
lcd_pos(0x07);
lcd_word("H:");
lcd_pos(0x0b);
lcd_wdat('%');
lcd_pos (0x40);
lcd_word("Sg:");
lcd_word(Player_Number1);
while(1)
{
Song(Number);
}
}
void t0int() interrupt 1
{
static uchar Num0=0,Num1=0,i=0;
TH0=(65536-30000)/256;
TL0=(65536-30000)%256;
Num1++;
//表示没有处于点个界面中，则进行数据刷新
if(Singin_interface==0)
{
Num0++;
if(Num0==90)//控制定时2.7秒钟，用来刷新数据
{
receive();
//显示温湿度
lcd_pos(0x02);
lcd_wdat(TH/10+0x30);
lcd_wdat(TL%10+0X30);
//显示湿度
lcd_pos(0x09);
lcd_wdat(RH/10+0X30);
lcd_wdat(RL%10+0X30);
Num0=0;
}
}
//表示处于点歌界面中
else if(Singin_interface==1)
{
if(Start==1&&Stop==0)
{
Number=rand_init();
lcd_pos(0x48);
lcd_wdat(Number+0x30);
}
}
if(Num1==5)
{
P0=LED1[i];
i++;
if(i==7)
{
i=0;
}
Num1=0;
}
}
void t1_int() interrupt 3 //T0中断程序，控制发音的音调
{
TR1 = 0; //先关闭T0 s
spaker =!spaker; //输出方波, 发音
TH1 = timer1h; //下次的中断时间, 这个时间, 控制音调高低
TL1 = timer1l;
TR1 = 1; //启动T0
}
main.h
#ifndef _main_h
#define _main_h
#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
typedef bit BOOL;
sbit spaker=P1^0;//定义音频输出管脚
sbit Player=P3^2;//播放按钮
sbit Last_Song=P3^3;//上一首按钮
sbit Next_Song=P3^5;//下一首
sbit Choose_Song=P3^6;//点歌按钮
sbit Confirmation=P3^7;//确定按钮
//1602相关函数
void lcd_wcmd (uchar cmd);
void lcd_pos (uchar pos);
void lcd_wdat (uchar dat);
void lcd_init ();
void lcd_word(uchar *word);
void delay (int m);
void Write_CGRAM(uchar *adder,uchar *p);
//DHT11相关函数
void start1();
uchar receive_byte();
void receive();
//音乐发声相关函数
void song();
void key_scan();
void Song(uchar j);
#endif
1602.c
/*
该文件用来编写LCD1602方面的程序
*/
#include "main.h"
#include "delay.h"
#define Dat_1602 P2//1602数据口
sbit rs=P1^7;
sbit rw=P1^6;
sbit ep=P1^5;
void delay (int m)
{
unsigned char i,j;
for (i=0;i<m;i++)
for (j=0;j<253;j++);
}
//判断LCD1602是否处于忙碌状态
BOOL lcd_bz()
{
BOOL result;
rs=0; // 读忙信号
rw=1;
ep=1;
_nop_();
_nop_();
_nop_();
_nop_();
result = (BOOL)(Dat_1602&0x80);
ep=0;
return result;
}
//向LCD62写命令
void lcd_wcmd (uchar cmd)
{
while (lcd_bz());
rs=0;
rw=0;
ep=0;
_nop_();
_nop_();
Dat_1602=cmd ;
_nop_();
_nop_();
_nop_();
_nop_();
ep=1;
_nop_();
_nop_();
_nop_();
_nop_();
ep=0;
}
//指定当前LCD1602要显示字符的位置
void lcd_pos (uchar pos)
{
lcd_wcmd (pos|0x80);
}
void lcd_wdat (uchar dat)
{
while (lcd_bz());
rs=1;
rw=0;
ep=0;
_nop_();
_nop_();
Dat_1602=dat ;
_nop_();
_nop_();
_nop_();
_nop_();
ep=1;
_nop_();
_nop_();
_nop_();
_nop_();
ep=0;
}
//LCD1602初始化
void lcd_init ()
{
lcd_wcmd (0x38); //显示模式设置：16×2显示，5×7点阵，8位数据接口
delay (1);
lcd_wcmd (0x0c); //显示模式设置：光标右移，字符不移
delay (1);
lcd_wcmd (0x06); //显示模式设置：光标右移，字符不移
delay (1);
lcd_wcmd (0x01); //清屏幕指令，将以前的显示内容清除
delay (1);
}
//向LCD1602发送字符串
void lcd_word(uchar *word)
{
uchar i=0;
while(word[i]!='\0')
{
lcd_wdat(word[i]);
i++;
}
}
//LCD1602自定义字符函数
void Write_CGRAM(uchar *adder,uchar*p)
{
//uchar LOL=0x40;//操作CGRAM的命令码
uchar i,j,V=0;
for(j=0;j<8;j++)
{
for(i=0;i<8;i++)
{
lcd_wcmd(adder+i);
lcd_wdat(p[V]);
V++;
}
adder+=8;
}
}
delay.h
#include "main.h"
#include "math.h"
#include "stdio.h"
void delay1(uchar t)
{
uchar t1;
unsigned long t2;
for(t1=0;t1<t;t1++)
{
for(t2=0;t2<8000;t2++)
{
;
}
}
TR0=0;
}
void delay8us()//一个FOR循环大概需要8个机器周期，一个机器周期大约是1us也就是说12MHZ的晶振对此函数的延时
//是8US多 所以此延时函数更精确
{
unsigned char i;
for(i = 0; i < 1; i++);
}
//定义延时函数
void delay_WO(unsigned char ms)
{
unsigned char i;
while(ms--)
for(i = 0; i < 100; i++);
}
void delay_player(unsigned char t) //延时子函数，控制发音的时间长度
{ uchar t1;
unsigned long t2;
for(t1 = 0; t1 < t; t1++) //嵌套循环, 共延时t个半拍
for(t2 = 0; t2 < 8000; t2++); //延时期间, 可进入T0中断去发音 8
TR1 = 0; //关闭T0, 停止发音
}
void Delay5ms() //@12.000MHz
{
unsigned char i, j;
i = 59;
j = 90;
do
{
while (--j);
} while (--i);
}
void Delay100ms() //@12.000MHz
{
unsigned char i, j, k;
_nop_();
_nop_();
i = 5;
j = 144;
k = 71;
do
{
do
{
while (--k);
} while (--j);
} while (--i);
}
//随机数产生函数
unsigned char rand_init()
{
uchar i;
i=rand()%8;
return i;
}
dht11.c
#include "main.h"
#include "delay.h"
//DHT11的数据管脚
sbit io=P1^4;
uchar data_byte;
extern uchar RH,RL,TH,TL;
//单片机发送开始信号
void start1()
{
io=1;
delay8us();
io=0;
delay_WO(25);
io=1;
delay8us();
delay8us();
delay8us();
}
uchar receive_byte()
{
unsigned char i,temp;
for(i=0;i<8;i++)
{
while(!io);
delay8us();
delay8us();
delay8us();
temp=0;
if(io==1)
temp=1;
while(io);
data_byte<<=1;
data_byte|=temp;
}
return data_byte;
}
void receive()
{
uchar T_H,T_L,R_H,R_L,check,num_check,i;
start1();
io=1;
if(!io)
{
while(!io);
while(io);
R_H=receive_byte();
R_L=receive_byte();
T_H=receive_byte();
T_L=receive_byte();
check=receive_byte();
io=0;
for(i=0;i<7;i++)
delay8us();
io=1;
num_check=R_H+R_L+T_H+T_L;
if(num_check==check)
{
RH=R_H;
RL=R_L;
TH=T_H;
TL=T_L;
check=num_check;
}
}
}
beep.c
#include "main.h"
#include "delay.h"
#include "beep.h"
// 频率-半周期数据表 高八位 本软件共保存了四个八度的28个频率数据
uchar code FREQH[] = { 0xF2, 0xF3, 0xF5, 0xF5, 0xF6, 0xF7, 0xF8, //低音1234567
0xF9, 0xF9, 0xFA, 0xFA, 0xFB, 0xFB, 0xFC, 0xFC,//1,2,3,4,5,6,7,i
0xFC, 0xFD, 0xFD, 0xFD, 0xFD, 0xFE, //高音 234567
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFF
}; //超高音 1234567
// 频率-半周期数据表 低八位
uchar code FREQL[] = { 0x42, 0xC1, 0x17, 0xB6, 0xD0, 0xD1, 0xB6, //低音1234567
0x21, 0xE1, 0x8C, 0xD8, 0x68, 0xE9, 0x5B, 0x8F, //1,2,3,4,5,6,7,i
0xEE, 0x44, 0x6B, 0xB4, 0xF4, 0x2D, //高音 234567
0x47, 0x77, 0xA2, 0xB6, 0xDA, 0xFA, 0x16
}; //超高音 1234567 //----------------------------------------------------------------------------------------------
// 要想演奏不同的乐曲, 只需要修改这个数据表
uchar code music[8][500] = {
//乡间小路数据表
{
3,1,2, 3,1,1, 3,1,1, 6,0,1, 6,0,1, 1,1,2, 6,0,1, 5,0,1, 6,0,4, 6,0,2, 6,0,1 ,6,0,1, 6,0,2, 6,0,1,
1,1,1, 2,1,2, 2,1,1, 3,1,1, 2,1,4, 3,1,1, 3,1,1, 3,1,1, 2,1,1, 4,1,2, 4,1,2, 3,1,2, 2,1,1, 1,1,1,
2,1,4, 7,0,1, 7,0,1, 7,0,1, 6,0,1, 5,0,1, 5,0,1, 6,0,1, 7,0,1, 7,0,1, 6,0,1, 5,0,1, 6,0,4, 6,1,2,
3,1,1, 6,1,1, 7,1,1, 6,1,1, 5,1,1, 5,1,2, 5,1,1, 2,1,1, 5,1,1, 6,1,1, 5,1,1, 4,1,1, 4,1,2, 4,1,1,
3,1,1, 2,1,2, 1,1,1, 2,1,1, 3,1,1, 2,1,1, 1,1,1, 2,1,1, 3,1,4, 6,1,2, 3,1,1, 6,1,1, 7,1,1, 6,1,1,
5,1,1, 5,1,2, 2,1,1, 5,1,1, 6,1,1, 5,1,1, 4,1,1, 4,1,2, 4,1,1, 5,1,1, 6,1,1, 4,1,1, 3,1,1, 2,1,2,
2,1,2, 5,1,4, 0,0,0
},
// 送别数据表
{ 5,1,2, 3,1,3, 5,1,1, 1,2,3, 6,1,2, 1,2,2, 5,1,4,
5,1,2, 1,1,1, 2,1,1, 3,1,2, 2,1,1, 1,1,1, 2,1,4,
5,1,2, 3,1,1, 5,1,1, 1,2,2, 7,1,1, 6,1,2,
1,2,2, 5,1,4, 5,1,2, 2,1,1, 3,1,1, 4,1,2, 7,0,1,
1,1,4, 6,1,2, 1,2,2, 1,2,4, 7,1,2, 6,1,1, 7,1,1,
1,2,4, 6,1,1, 7,1,1, 1,2,1, 6,1,1, 6,1,1, 5,1,1,
3,1,1, 1,1,1, 2,1,8, 5,1,2, 3,1,1, 5,1,1, 1,2,2,
7,1,1, 6,1,2, 1,2,2, 5,1,4, 5,1,2, 2,1,1, 3,1,1,
4,1,2, 7,0,2, 1,1,4, 0,0,0
},
//一辈子的孤单数据表
{ 5,0,1, 5,0,1, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 3,1,1, 3,1,1, 2,1,1, 2,1,4,
5,0,1, 5,0,1, 3,1,1, 2,1,1, 2,1,1, 2,1,1, 1,1,1,
2,1,1, 3,1,1, 3,1,4, 5,0,1, 5,0,1, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 3,1,1, 3,1,1, 2,1,1, 2,1,4, 2,1,1, 1,1,1,
-3,1,1, 2,1,1,
1,1,1, 2,1,1, 1,1,1, 1,1,8, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 1,1,1, 2,1,1, 2,1,6, 3,1,1, 2,1,2, 1,1,1, 1,1,1,
-5,0,1, 6,0,1,
5,0,1, 5,0,6, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 1,1,1, 2,1,1, 2,1,6, 5,0,1, 3,1,1, 2,1,2, 1,1,1, 2,1,2, 3,1,1,
-3,1,4,
5,0,1, 3,1,1, 5,1,2, 6,1,1, 3,1,1, 2,1,1, 2,1,6, 5,0,1, 3,1,1, 2,1,2, 1,1,1, 2,1,2, 3,1,1, 3,1,4,
5,0,1, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 3,1,1, 2,1,1, 2,1,4, 2,1,1, 1,1,1, 3,1,1, 2,1,1, 1,1,1, 2,1,1, 1,1,1,
-1,1,1, 1,1,6,
3,1,1, 2,1,1, 2,1,1, 1,1,1, 3,1,1, 2,1,1, 2,1,6, 5,0,1, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 2,1,1, 3,1,1, 3,1,6,
5,0,1, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 3,1,1, 2,1,1, 2,1,6, 5,0,1, 3,1,1, 2,1,1, 2,1,1, 1,1,1, 2,1,1, 3,1,1,
-3,1,6,0,0,0
},
//世上只有妈妈好数据表
{ 6,2,3, 5,2,1, 3,2,2, 5,2,2, 1,3,2, 6,2,1, 5,2,1,
6,2,4, 3,2,2, 5,2,1, 6,2,1, 5,2,2, 3,2,2, 1,2,1,
6,1,1, 5,2,1, 3,2,1, 2,2,4, 2,2,3, 3,2,1, 5,2,2,
5,2,1, 6,2,1, 3,2,2, 2,2,2, 1,2,4, 5,2,3, 3,2,1,
2,2,1, 1,2,1, 6,1,1, 1,2,1, 5,1,6, 0,0,0
},
{ 5,1,1, 5,1,1, 6,1,2, 5,1,2, 1,2,2, 7,1,4,
5,1,1, 5,1,1, 6,1,2, 5,1,2, 2,2,2, 1,2,4,
5,1,1, 5,1,1, 5,2,2, 3,2,2, 1,2,2, 7,1,2, 6,1,2,
4,2,1, 4,2,1, 3,2,2, 1,2,2, 2,2,2, 1,2,4
},
//发如雪
{
5,1,1, 2,2,1, 3,2,2, 2,2,1, 3,2,1, 5,2,1, 6,2,1, 5,2,3, 1,2,1, 2,2,1,
3,2,1, 6,2,1, 5,2,1, 3,2,1, 5,2,3, 5,2,1, 6,2,1, 1,3,2, 6,2,1, 5,2,1,
3,2,1, 5,2,1, 3,2,2, 1,2,1, 2,2,1, 3,2,1, 1,2,1, 6,1,1, 3,2,1, 2,2,1,
5,1,1, 2,2,1, 3,2,2, 2,2,1, 3,2,1, 5,2,1, 6,2,1, 5,2,3, 1,2,1, 2,2,1,
3,2,1, 6,2,1, 5,2,3, 5,2,1, 6,2,1, 1,3,2, 6,2,1,
5,2,1, 3,2,1, 5,2,1, 3,2,2, 1,2,1, 6,1,1, 3,2,1, 2,2,1, 1,2,1, 6,1,1,
1,2,1, 2,2,1, 2,2,1, 1,2,4, 0,0,0
},
//当你孤单会想起谁
{
3,2,2, 3,2,1, 4,2,1, 3,2,2, 2,2,1, 1,2,1, 2,2,2, 5,2,2, 2,2,2, 2,2,3,
1,2,2, 1,2,1, 2,2,1, 1,2,2, 7,1,1, 6,1,1, 7,1,2, 3,2,2, 7,1,2, 7,1,3,
6,1,2, 2,2,1, 3,2,1, 2,2,1, 1,2,1, 6,1,2, 5,1,2, 2,2,1, 3,2,1, 2,2,1,
1,2,1, 6,1,2, 6,1,2, 2,2,1, 3,2,1, 2,2,1, 1,2,1, 6,1,1, 7,1,1, 1,2,6, 0,0,0
},
//简单爱
{
5,1,1, 1,2,1, 2,2,1, 3,2,1, 2,2,1, 3,2,1, 4,2,1, 5,2,1, 5,2,1, 5,2,1,
4,2,1, 3,2,1, 2,2,3, 5,1,1, 1,2,1, 2,2,1, 3,2,1, 4,2,1, 5,2,1, 5,2,1,
5,2,1, 6,2,1, 5,2,2, 2,2,1, 3,2,1, 1,2,2, 1,2,1, 6,1,1, 2,2,1, 2,2,1,
3,2,1, 3,2,1, 1,2,1, 5,2,1, 1,2,1, 5,2,1, 1,2,1, 7,1,1, 1,2,1, 1,2,1, 6,1,1,
2,2,1, 2,2,1, 3,2,1, 3,2,1, 5,2,1, 5,2,1,
5,2,1, 6,2,1, 5,2,2, 2,2,1, 3,2,1, 1,2,2,
5,1,1, 1,2,1, 2,1,2, 3,2,1, 2,2,1, 3,2,1, 4,2,1, 5,2,1, 5,2,1, 5,2,1,
4,2,1, 3,2,1, 2,2,3, 5,1,1, 1,2,1, 2,2,1, 3,2,1, 2,2,1, 3,2,1, 4,2,1,
5,2,1, 5,2,1, 5,2,2, 2,2,1, 3,2,1, 1,2,2, 1,2,1, 6,1,1, 2,2,1, 2,2,1,
3,2,1, 3,2,1, 1,2,2, 5,2,1, 1,2,1, 5,2,1, 5,2,1, 7,1,1, 1,2,1, 0,0,0 }
};
//定义歌曲名字
uchar code Player_Number1[10]="1.CyRoad ";
uchar code Player_Number2[10]="2.FeWell ";
uchar code Player_Number3[10]="3.LCover ";
uchar code Player_Number4[10]="4.Mother ";
uchar code Player_Number5[10]="5.Birhday";
uchar code Player_Number6[10]="6.SnHair ";
uchar code Player_Number7[10]="7.Althink";
uchar code Player_Number8[10]="8.SimLove";
//定义9各空格来进行下一首歌曲名字的显示
uchar code Tab[9]=" ";
//定义变量Singin_interface来判断是否处于点歌界面当变量等于一时表示处于点个界面中
//定义变量Start,Stop来判断点歌的开始与停止等于一时有效
uchar Singin_interface=0,Start=0,Stop=0;
/*定义变量timer1h, timer1l来存储定时器的初值，TIME用来控制延时时间，
K_Value用来存储键值Num用来记录
音乐播放到那一首*/
uchar timer1h, timer1l,time,K_Value;
char Number=0;
//发声控制函数
void song()
{
TH1 = timer1h; //控制音调
TL1 = timer1l;
TR1 = 1; //启动T0, 由T0输出方波去发音
delay_player(time); //控制时间长度
}
void key_scan()
{
//判断是否按下了播放按键
if(Player==0)
{
Delay5ms();
if(Player==0)
{
while(Player==0);
K_Value=1;
}
}
//判断是否按下了下一首按键
else if(Next_Song==0)
{
Delay5ms();
if(Next_Song==0)
{
while(Next_Song==0);
K_Value=2;
}
}
//判断是否按下了上一首的按键
else if(Last_Song==0)
{
Delay5ms();
if(Last_Song==0)
{
while(Last_Song==0);
K_Value=3;
}
}
//判断是否按下了点歌按钮
else if(Choose_Song==0)
{
Delay5ms();
if(Choose_Song==0)
{
while(Choose_Song==0);
K_Value=4;
}
}
//判断是否按下了确定按钮
else if(Confirmation==0)
{
Delay5ms();
if(Confirmation==0)
{
while(Confirmation==0);
K_Value=5;
}
}
}
//音乐播放控制函数
void Song(uchar j) //j表示第n+1首曲 9
{
uchar k, i,flag_play=0;
uchar LCD_i=0;//用来显示从点歌界面切换回来时的自定义字符
static char flag_next_song=0,K=0;//flag_next_song用来记录切换到了那一首歌曲，i用来记录按键5按下的次数
i = 0;
time = 1;
while(time)
{
key_scan();
if(Singin_interface==0)
{
//说明播放按钮按下了，执行相应的操作
if(K_Value==1)
{
TR1=0;
ET1=0;
flag_play++;
K_Value=0;
if( flag_play==2)
{
flag_play=0;
TR1=1;
ET1=1;
}
}
//切换到下一首歌曲
else if(K_Value==2)
{
K_Value=0;
//开启定时器
TR1=0;
ET1=0;
flag_next_song++;
if(flag_next_song>7)//当到最后一首歌时循环到第一首
{
flag_next_song=0;
}
Number=flag_next_song;
//在1602上显示歌曲名字
switch(Number)
{
case 0:
lcd_pos (0x43);
lcd_word(Player_Number1);
break;
case 1:
lcd_pos (0x43);
lcd_word(Player_Number2);
break;
case 2:
lcd_pos (0x43);
lcd_word(Player_Number3);
break;
case 3:
lcd_pos (0x43);
lcd_word(Player_Number4);
break;
case 4:
lcd_pos (0x43);
lcd_word(Player_Number5);
break;
case 5:
lcd_pos (0x43);
lcd_word(Player_Number6);
break;
case 6:
lcd_pos (0x43);
lcd_word(Player_Number7);
break;
case 7:
lcd_pos (0x43);
lcd_word(Player_Number8);
break;
default:
break;
}
TR1=1;
ET1=1;
break;
}
//切换到上一首歌
else if(K_Value==3)
{
K_Value=0;
//开启定时器
TR1=0;
ET1=0;
flag_next_song--;
if(flag_next_song<0)//当到最后一首歌时循环到第一首
{
flag_next_song=7;
}
Number=flag_next_song;
//在1602上显示歌曲名字
switch(Number)
{
case 0:
lcd_pos (0x43);
lcd_word(Player_Number1);
break;
case 1:
lcd_pos (0x43);
lcd_word(Player_Number2);
break;
case 2:
lcd_pos (0x43);
lcd_word(Player_Number3);
break;
case 3:
lcd_pos (0x43);
lcd_word(Player_Number4);
break;
case 4:
lcd_pos (0x43);
lcd_word(Player_Number5);
break;
case 5:
lcd_pos (0x43);
lcd_word(Player_Number6);
break;
case 6:
lcd_pos (0x43);
lcd_word(Player_Number7);
break;
case 7:
lcd_pos (0x43);
lcd_word(Player_Number8);
break;
default:
break;
}
TR1=1;
ET1=1;
break;
}
//表示按下了点歌按键
else if(K_Value==4)
{
Singin_interface=1;//将标志为置为一表示处于点歌界面中
TR1=0;
ET1=0;
K_Value=0;
lcd_wcmd (0x01);//刷新屏幕
lcd_pos(0x00);
lcd_word("Hello! Welcome!");
lcd_pos(0x41);
lcd_word("Start Stop");
}
}
else if(Singin_interface==1)//表示在点歌界面中
{
//选择点歌的开始按钮
if(K_Value==5)
{
K_Value=0;
K++;
if(K==1)
{
ET1=0;
TR1=0;
Start=1;
Stop=0;
lcd_pos(0x40);
lcd_wdat('*');
lcd_pos(0x4b);
lcd_wdat(' ');
}
else if(K==2)
{
Start=0;
Stop=1;
lcd_pos(0x40);
lcd_wdat(' ');
lcd_pos(0x4b);
lcd_wdat('*');
K=0;
Delay100ms();//100MS开始播放选中的歌曲
ET1=1;
TR1=1;
Song(Number);
}
}
else if(K_Value==1)//当处于点个界面时按下上一首按键时退出点歌界面
{
K_Value=0;
Singin_interface=0;//点歌界面标志位清零
Start=0;
Stop=0;
Number=0;
flag_next_song=0;
//先关闭定时器
ET1=0;
TR1=0;
//Number=0;
//进行主界面显示
lcd_wcmd(0x01);
Delay100ms();
//再1602上显示自定义字符
//显示字符的前四位
lcd_pos (0x0c);
for( LCD_i=0; LCD_i<4; LCD_i++)
{
lcd_wdat(LCD_i);
}
//显示自定义字符的后四位
lcd_pos (0x4c);
for( LCD_i=4; LCD_i<8; LCD_i++)
{
lcd_wdat( LCD_i);
}
//在1602上显示自定义布局
lcd_pos(0x00);
lcd_word("T:");
//温度
lcd_pos(0x04);
lcd_wdat(0xdF);
lcd_wdat('C');
//湿度
lcd_pos(0x07);
lcd_word("H:");
lcd_pos(0x0b);
lcd_wdat('%');
lcd_pos (0x40);
lcd_word("Sg:");
lcd_word(Player_Number1);
ET1=1;
TR1=1;
Song(Number);
}
}
k = music[j][i] + 7 * music[j][i + 1] - 1; //第i个是音符, 第i+1个是第几个八度
timer1h = FREQH[k]; //从数据表中读出频率数值
timer1l = FREQL[k]; //实际上, 是定时的时间长度
time = music[j][i + 2]; //读出时间长度数值
i += 3;
song(); //发出一个音符
}
}
Proteus电路仿真图
