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基于51单片机课程设计八音盒茉莉花

发布时间: 2021-02-20 10:33:32

Ⅰ 基于51单片机电子琴的课程设计

到我的博客上找：http://blog.163.com/zhaojun_xf/edit/，能找到你版需要的。权

Ⅱ 求一篇基于51单片机音乐播放器的课程设计

看看我这的这个单片机音乐播放器行不行，Q我吧

Ⅲ 51单片机设计电子琴课程设计

http://code.21ic.com/code/31218
实现电子琴的功能，基于C51，通过7个按键，来发出7种音调，也可以做成水回果键盘
21ic中国电子网答站上有很多电子琴的源码，你可以去搜索一下。。

Ⅳ 求一份基于AT89C51单片机课程设计音乐盒，程序是C语言写的，不是汇编。在数码管上显示四首歌的序号，1~4。

#include <reg52.h>
#include "Music.h"
#include "SoundPlay.h"
#include "lcd.h"
#define SYSTEM_OSC 12000000 //定义晶振频率12000000HZ
#define SOUND_SPACE 4/5 //定义普通音符演奏的长度分率,//每4分音符间隔
sbit BeepIO = P2^0; //定义输出管脚
unsigned char code an[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//an code 0~9
unsigned int code FreTab[12] = { 262,277,294,311,330,349,369,392,415,440,466,494 }; //原始频率表
unsigned char code SignTab[7] = { 0,2,4,5,7,9,11 }; //1~7在频率表中的位置
unsigned char code LengthTab[7]= { 1,2,4,8,16,32,64 };
unsigned char Sound_Temp_TH0,Sound_Temp_TL0; //音符定时器初值暂存
unsigned char Sound_Temp_TH1,Sound_Temp_TL1; //音长定时器初值暂存
//*******************************************************************
#define MaxNo 3 //定义歌曲数目
unsigned char code *Sound;
unsigned char code * code Music[MaxNo]={Music_4,Music_8,Music_7,Music_6,Music_5,Music_9,Music_3,Music_2,Music_1};
signed char FlagNo=0;
static unsigned char KeyScan(void);
static void Beep(void);
bit RunStop = 1;//1表示运行
sbit KeyB =P3^2; // 上一首
sbit KeyF =P3^3; //下一首
sbit KeyT =P3^5; //暂停
extern void Delay1ms(unsigned int);
void InitialSound(void)
{
BeepIO = 0;
Sound_Temp_TH1 = (65535-(1/1200)*SYSTEM_OSC)/256; // 计算TL1应装入的初值 (10ms的初装值)
Sound_Temp_TL1 = (65535-(1/1200)*SYSTEM_OSC)%256; // 计算TH1应装入的初值
TH1 = Sound_Temp_TH1;
TL1 = Sound_Temp_TL1;
TMOD |= 0x11; //两个定时器都工作在方式1
ET0 = 1;
ET1 = 0;
TR0 = 0;
TR1 = 0;
EA = 1;
FlagNo = 0;
Sound = Music[FlagNo];
P1 = an[FlagNo+1];
}
void BeepTimer0(void) interrupt 1 //音符发生中断
{
BeepIO = !BeepIO;
TH0 = Sound_Temp_TH0;
TL0 = Sound_Temp_TL0;
}
//*******************************************************************
void Play(unsigned char Signature,unsigned Octachord,unsigned int Speed)
{
unsigned int NewFreTab[12]; //新的频率表
unsigned char i,j;
unsigned int Point,LDiv,LDiv0,LDiv1,LDiv2,LDiv4,CurrentFre,Temp_T,SoundLength;
unsigned char Tone,Length,SL,SH,SM,SLen,XG,FD;
#ifdef USE_LCD
lcd_init();
lcd_write_string(0,"MusicPlayer");
#endif
Again :
Delay1ms(600);
for(i=0;i<12;i++) // 根据调号及升降八度来生成新的频率表
{
j = i + Signature;
if(j > 11)
{
j = j-12;
NewFreTab[i] = FreTab[j]*2;
}
else
NewFreTab[i] = FreTab[j];
if(Octachord == 1)
NewFreTab[i]>>=2;
else if(Octachord == 3)
NewFreTab[i]<<=2;
}
SoundLength = 0;
while(Sound[SoundLength] != 0x00) //计算歌曲长度
{
SoundLength+=2;
}
Point = 0;
Tone = Sound[Point];
Length = Sound[Point+1]; // 读出第一个音符和它时时值
LDiv0 = 12000/Speed; // 算出1分音符的长度(几个10ms)
LDiv4 = LDiv0/4; // 算出4分音符的长度
LDiv4 = LDiv4-LDiv4*SOUND_SPACE; // 普通音最长间隔标准
TR0 = 0;
TR1 = 1;
while(Point < SoundLength)
{
if(KeyScan())goto Again; /*more keyscan for speed*/
SL=Tone%10; //计算出音符
SM=Tone/10%10; //计算出高低音
SH=Tone/100; //计算出是否升半
CurrentFre = NewFreTab[SignTab[SL-1]+SH]; //查出对应音符的频率
if(KeyScan())goto Again; /*more keyscan for speed*/
if(SL!=0)
{
if (SM==1) CurrentFre >>= 2; //低音
if (SM==3) CurrentFre <<= 2; //高音
Temp_T = 65536-(50000/CurrentFre)*10/(12000000/SYSTEM_OSC);//计算计数器初值
Sound_Temp_TH0 = Temp_T/256;
Sound_Temp_TL0 = Temp_T%256;
TH0 = Sound_Temp_TH0;
TL0 = Sound_Temp_TL0 + 12; //加12是对中断延时的补偿
}
if(KeyScan())goto Again; /*more keyscan for speed*/
SLen=LengthTab[Length%10]; //算出是几分音符
XG=Length/10%10; //算出音符类型(0普通1连音2顿音)
FD=Length/100;
LDiv=LDiv0/SLen; //算出连音音符演奏的长度(多少个10ms)
if (FD==1)
LDiv=LDiv+LDiv/2;
if(XG!=1)
if(XG==0) //算出普通音符的演奏长度
if (SLen<=4)
LDiv1=LDiv-LDiv4;
else
LDiv1=LDiv*SOUND_SPACE;
else
LDiv1=LDiv/2; //算出顿音的演奏长度
else
LDiv1=LDiv;
if(SL==0) LDiv1=0;
LDiv2=LDiv-LDiv1; //算出不发音的长度
if(KeyScan())goto Again; /*more keyscan for speed*/
if (SL!=0)
{
TR0=1;
for(i=LDiv1;i>0;i--) //发规定长度的音
{
while(TF1==0);
TH1 = Sound_Temp_TH1;
TL1 = Sound_Temp_TL1;
TF1=0;
if(KeyScan())goto Again; /*more keyscan for speed*/
}
}
if(KeyScan())goto Again; /*more keyscan for speed*/
if(LDiv2!=0)
{
TR0=0; BeepIO=0;
for(i=LDiv2;i>0;i--) //音符间的间隔
{
while(TF1==0);
TH1 = Sound_Temp_TH1;
TL1 = Sound_Temp_TL1;
TF1=0;
if(KeyScan())goto Again; /*more keyscan for speed*/
}
}
Point+=2;
Tone=Sound[Point];
Length=Sound[Point+1];
if(KeyScan())goto Again; /*more keyscan for speed*/
#ifdef USE_LCD
lcd_write_char(12,FlagNo+49);
#endif
}
BeepIO = 0;
FlagNo ++;
if (FlagNo == MaxNo)FlagNo =0;
Sound = Music[FlagNo];
P1 = an[FlagNo+1];
}
/**************************************************************
功能： 键盘扫描函数
入参： viod KeyF 下一首
KeyB 上一首
KeyT 暂停
返回： unsigned char
1 需跳转 0 不跳转
***************************************************************/
static unsigned char KeyScan(void)
{
unsigned char Cont;
if (KeyF == 0){ //前进
Delay1ms(5);
if (KeyF == 0){
while(KeyF == 0){
EA = 0;
FlagNo ++;
if (FlagNo == MaxNo)FlagNo =0;
P1 = an[FlagNo+1];
Beep();
Delay1ms(600); //是长按
EA = 1;
}
if (FlagNo == MaxNo)FlagNo =0;
Sound = Music[FlagNo];
P1= an[FlagNo+1]; //刷显示
while(KeyF == 0);
return 1;
}
}
if (KeyB == 0){ //后退
Delay1ms(5);
if (KeyB == 0){
while(KeyB == 0){
EA = 0;
FlagNo --;
if (FlagNo == -1)FlagNo =MaxNo-1;
P1 = an[FlagNo+1];//刷显示
Beep();
Delay1ms(600); //是长按
EA = 1;
}
if (FlagNo == -1)FlagNo =MaxNo-1;
Sound = Music[FlagNo];
P1 = an[FlagNo+1];
while(KeyB == 0);
return 1;
}
}
if (KeyT == 0){ //暂停
Delay1ms(20);
Cont = 0;
EA = 0;
TR0 = 0;
TR1 = 0;
if (KeyT == 0){
RunStop = ~RunStop;
while(KeyT == 0); //等待第一次释放
Beep();
if (!RunStop){ //是暂停 则关中断和定时器
EA = 0;
TR0 = 0;
TR1 = 0;
while(KeyT == 0); //检测第二次按键 并等待它释放（若有的话）
while (KeyT){ //第二次释放了 等待第三次按下
P1 = an[Cont++%10]; //第三次未按下 则暂停数秒0~9
Delay1ms(100);
} //此处暂停 直到再次有按键低电平
EA = 1; //重开定时器和中断
TR0 = 1;
TR1 = 1;
Sound = Music[FlagNo];
P1 = an[FlagNo+1]; //恢复原来的显示
}
}
EA = 1;
TR0 = 1;
TR1 = 1;
return 0;
}
return 0;
}
void Beep(void)
{
unsigned char i;
for(i = 0;i < 200 ;i ++){
BeepIO = ~BeepIO;
Delay1ms(1);
}
}
Playmusic：
#include <REG52.H>
#include "Music.h"
#include "SoundPlay.h"
void Delay1ms(unsigned int count)
{
unsigned int i,j;
for(i=0;i<count;i++)
for(j=0;j<120;j++);
}
main()
{
InitialSound();
while(1)
{
Play(0,3,380);
Delay1ms(500);
}
}
Music:
#include "Music.h" //*****************************Music********************************
//挥着翅膀的女孩
unsigned char code Music_1[]={
0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x15,0x03,
0x16,0x03, 0x17,0x03, 0x17,0x03, 0x17,0x03, 0x18,0x03,
0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x02, 0x18,0x03,
0x17,0x03, 0x15,0x02, 0x18,0x03, 0x17,0x03, 0x18,0x02,
0x10,0x03, 0x15,0x03, 0x16,0x02, 0x15,0x03, 0x16,0x03,
0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x1A,0x03,
0x1B,0x03, 0x1F,0x03, 0x1F,0x03, 0x17,0x03, 0x18,0x03,
0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x03,
0x18,0x03, 0x1F,0x03, 0x1F,0x02, 0x16,0x03, 0x17,0x03,
0x18,0x03, 0x17,0x03, 0x18,0x03, 0x20,0x03, 0x20,0x02,
0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03,
0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03,
0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66,
0x1A,0x03, 0x19,0x03, 0x15,0x03, 0x15,0x03, 0x17,0x03,
0x16,0x66, 0x17,0x04, 0x18,0x04, 0x18,0x03, 0x19,0x03,
0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03,
0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03,
0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66,
0x1A,0x03, 0x19,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03,
0x1F,0x00, 0x1A,0x03, 0x1A,0x03, 0x1A,0x03, 0x1B,0x03,
0x1B,0x03, 0x1A,0x03, 0x19,0x03, 0x19,0x02, 0x17,0x03,
0x15,0x17, 0x15,0x03, 0x16,0x03, 0x17,0x03, 0x18,0x03,
0x17,0x04, 0x18,0x0E, 0x18,0x03, 0x17,0x04, 0x18,0x0E,
0x18,0x66, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03,
0x20,0x03, 0x20,0x02, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66,
0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03,
0x1F,0x66, 0x1F,0x04, 0x1B,0x0E, 0x1B,0x03, 0x19,0x03,
0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03,
0x15,0x03, 0x15,0x03, 0x17,0x03, 0x16,0x66, 0x17,0x04,
0x18,0x04, 0x18,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03,
0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03,
0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03,
0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03,
0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x00, 0x18,0x02,
0x18,0x03, 0x1A,0x03, 0x19,0x0D, 0x15,0x03, 0x15,0x02,
0x18,0x66, 0x16,0x02, 0x17,0x02, 0x15,0x00, 0x00,0x00};
//同一首歌
unsigned char code Music_2[]={
0x0F,0x01, 0x15,0x02, 0x16,0x02, 0x17,0x66, 0x18,0x03,
0x17,0x02, 0x15,0x02, 0x16,0x01, 0x15,0x02, 0x10,0x02
0x15,0x00, 0x0F,0x01, 0x15,0x02, 0x16,0x02, 0x17,0x02,
0x17,0x03, 0x18,0x03, 0x19,0x02, 0x15,0x02, 0x18,0x66,
0x17,0x03, 0x19,0x02, 0x16,0x03, 0x17,0x03, 0x16,0x00,
0x17,0x01, 0x19,0x02, 0x1B,0x02, 0x1B,0x70, 0x1A,0x03,
0x1A,0x01, 0x19,0x02, 0x19,0x03, 0x1A,0x03, 0x1B,0x02,
0x1A,0x0D, 0x19,0x03, 0x17,0x00, 0x18,0x66, 0x18,0x03,
0x19,0x02, 0x1A,0x02, 0x19,0x0C, 0x18,0x0D, 0x17,0x03,
0x16,0x01, 0x11,0x02, 0x11,0x03, 0x10,0x03, 0x0F,0x0C,
0x10,0x02, 0x15,0x00, 0x1F,0x01, 0x1A,0x01, 0x18,0x66,
0x19,0x03, 0x1A,0x01, 0x1B,0x02, 0x1B,0x03, 0x1B,0x03,
0x1B,0x0C, 0x1A,0x0D, 0x19,0x03, 0x17,0x00, 0x1F,0x01,
0x1A,0x01, 0x18,0x66, 0x19,0x03, 0x1A,0x01, 0x10,0x02,
0x10,0x03, 0x10,0x03, 0x1A,0x0C, 0x18,0x0D, 0x17,0x03,
0x16,0x00, 0x0F,0x01, 0x15,0x02, 0x16,0x02, 0x17,0x70,
0x18,0x03, 0x17,0x02, 0x15,0x03, 0x15,0x03, 0x16,0x66,
0x16,0x03, 0x16,0x02, 0x16,0x03, 0x15,0x03, 0x10,0x02,
0x10,0x01, 0x11,0x01, 0x11,0x66, 0x10,0x03, 0x0F,0x0C,
0x1A,0x02, 0x19,0x02, 0x16,0x03, 0x16,0x03, 0x18,0x66,
0x18,0x03, 0x18,0x02, 0x17,0x03, 0x16,0x03, 0x19,0x00,
0x00,0x00 };
//两只蝴蝶
unsigned char code Music_3[] ={
0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03,
0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02,
0x16,0x0D, 0x17,0x03, 0x16,0x03, 0x15,0x03, 0x10,0x03,
0x10,0x0E, 0x15,0x04, 0x0F,0x01, 0x17,0x03, 0x16,0x03,
0x17,0x01, 0x16,0x03, 0x17,0x03, 0x16,0x03, 0x15,0x01,
0x10,0x03, 0x15,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03,
0x16,0x03, 0x15,0x03, 0x10,0x03, 0x15,0x03, 0x16,0x01,
0x17,0x03, 0x16,0x03, 0x17,0x01, 0x16,0x03, 0x17,0x03,
0x16,0x03, 0x15,0x01, 0x10,0x03, 0x15,0x03, 0x16,0x02,
0x16,0x0D, 0x17,0x03, 0x16,0x03, 0x15,0x03, 0x10,0x03,
0x10,0x0E, 0x15,0x04, 0x0F,0x01, 0x17,0x03, 0x19,0x03,
0x19,0x01, 0x19,0x03, 0x1A,0x03, 0x19,0x03, 0x17,0x01,
0x16,0x03, 0x16,0x03, 0x16,0x02, 0x16,0x0D, 0x17,0x03,
0x16,0x03, 0x15,0x03, 0x10,0x03, 0x10,0x0D, 0x15,0x00,
0x19,0x03, 0x19,0x03, 0x1A,0x03, 0x1F,0x03, 0x1B,0x03,
0x1B,0x03, 0x1A,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x03,
0x16,0x0D, 0x17,0x01, 0x17,0x03, 0x17,0x03, 0x19,0x03,
0x1A,0x02, 0x1A,0x02, 0x10,0x03, 0x17,0x0D, 0x16,0x03,
0x16,0x01, 0x17,0x03, 0x19,0x03, 0x19,0x03, 0x17,0x03,
0x19,0x02, 0x1F,0x02, 0x1B,0x03, 0x1A,0x03, 0x1A,0x0E,
0x1B,0x04, 0x17,0x02, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E,
0x1B,0x04, 0x1A,0x03, 0x19,0x03, 0x17,0x03, 0x16,0x03,
0x17,0x0D, 0x16,0x03, 0x17,0x03, 0x19,0x01, 0x19,0x03,
0x19,0x03, 0x1A,0x03, 0x1F,0x03, 0x1B,0x03, 0x1B,0x03,
0x1A,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x03, 0x16,0x03,
0x17,0x01, 0x17,0x03, 0x17,0x03, 0x19,0x03, 0x1A,0x02,
0x1A,0x02, 0x10,0x03, 0x17,0x0D, 0x16,0x03, 0x16,0x01,
0x17,0x03, 0x19,0x03, 0x19,0x03, 0x17,0x03, 0x19,0x03,
0x1F,0x02, 0x1B,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,
0x17,0x02, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,
0x17,0x16, 0x1A,0x03, 0x1A,0x03, 0x1A,0x0E, 0x1B,0x04,
0x1A,0x03, 0x19,0x03, 0x17,0x03, 0x16,0x03, 0x0F,0x02,
0x10,0x03, 0x15,0x00, 0x00,0x00 };

Ⅳ 51单片机课程设计，编程并设计仿真电路

#include<reg51.h>
#include<INTRINS.h>
#defineu16unsignedint
#defineu8unsignedchar

sbitk_add1=P1^0;
sbitk_add2=P1^1;
sbitk_add3=P1^2;
sbitk_sub1=P1^3;

u8key=0xff;//消抖后的有效按键值
u8key_down=0x00;//按键下降沿扫描结果，1有效
u8key_sc=0xff;//上次扫描的按键值

//按键扫描程序
voidscanKey(){
	staticu8temp0;
	staticu8ms;
	u8temp=0;
	if(k_add1==1)temp|=0x01;
	if(k_add2==1)temp|=0x02;
	if(k_add3==1)temp|=0x04;
	if(k_sub1==1)temp|=0x08;
	if(temp==temp0){//按键消抖
		if(++ms>=5){//连续5次扫描的值一样，则认为是稳定状态
			key=temp;
			ms=0;	
		}
	}else{
		temp0=temp;
		ms=0;
	}

	key_down=key_sc&(~key);//下降沿扫描
	key_sc=key;

}

u8readPIN(u8port,u8pin){
	codeu8tab[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,};
	return((port&tab[pin])==0?0:1);
}

u8ds[4];//数码管显示缓存
codeu8w[]={0x01,0x02,0x04,0x08,};	//位码
codeu8d[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,};//断码
voiddispaly(){//显示函数
	staticu8a;
	a++;
	if(a>3)a=0;
	P0=0xff;
	P2=w[a];
	P0=d[ds[a]];
}voidinit()	//初始化函数
{TMOD=0x01;
	TH0=(65536-1000)/256;
	TL0=(65536-1000)%256;
	EA=1;
ET0=1;

}


u16count=0;
voidmain()//主函数
{
	init();	
	TR0=1;
	while(1){
		ds[0]=count/1000%10;//将当前分值送到数码管缓存
		ds[1]=count/100%10;
		ds[2]=count/10%10;
		ds[3]=count%10;
		scanKey();//扫描按键
		if(readPIN(key_down,0)==1){//加1
			count+=1;
		}
		if(readPIN(key_down,1)==1){//加2
			count+=2;
		}
		if(readPIN(key_down,2)==1){//加3
			count+=3;
		}
		if(readPIN(key_down,3)==1){//减1
			count-=1;
		}
		
		if((key&0x0f)==0){//四个减一起按下，记分清零
			count=0;
		}	
	}

}voidtimer0()interrupt1//定时器，实现倒计时
{
	TH0=(65536-1000)/256;
	TL0=(65536-1000)%256;
	dispaly();
}

Ⅵ 51单片机课程设计 八音盒设计

网上找《8051单片机实践与应用》的电子版下载，里面有你需要的

Ⅶ 用89C51单片机设计开发简易电子琴，能7个音，并存一首歌就好，要简单点的，做为课程设计用，急需！！！

//本程序的单片机晶振采用11.0592M
#include <reg51.h>
sbit speaker=P1^2;
unsigned char timer0h,timer0l,time;
//世上只有妈妈好数据表
code unsigned char sszymmh[]={ 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
};
// 音阶频率表 高八位
code unsigned char FREQH[]={
0xF2,0xF3,0xF5,0xF5,0xF6,0xF7,0xF8,
0xF9,0xF9,0xFA,0xFA,0xFB,0xFB,0xFC,0xFC, //1,2,3,4,5,6,7,8,i
0xFC,0xFD,0xFD,0xFD,0xFD,0xFE,
0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,
} ;
// 音阶频率表 低八位
code unsigned char FREQL[]={
0x42,0xC1,0x17,0xB6,0xD0,0xD1,0xB6,
0x21,0xE1,0x8C,0xD8,0x68,0xE9,0x5B,0x8F, //1,2,3,4,5,6,7,8,i
0xEE,0x44, 0x6B,0xB4,0xF4,0x2D,
0x47,0x77,0xA2,0xB6,0xDA,0xFA,0x16,
};
void delay(unsigned char t)
{
unsigned char t1;
unsigned long t2;
for(t1=0;t1<t;t1++)
{
for(t2=0;t2<8000;t2++)
{
;
}
}
TR0=0;
}
void t0int() interrupt 1
{
TR0=0;
speaker=!speaker;
TH0=timer0h;
TL0=timer0l;
TR0=1;
}
void song()
{
TH0=timer0h;
TL0=timer0l;
TR0=1;
delay(time);
}

void main(void)
{
unsigned char k,i;
TMOD=1; //置CT0定时工作方式1
EA=1;
ET0=1;//IE=0x82 //CPU开中断,CT0开中断
while(1)
{
i=0;
while(i<100){ //音乐数组长度 ，唱完从头再来
k=sszymmh[i]+7*sszymmh[i+1]-1;
timer0h=FREQH[k];
timer0l=FREQL[k];
time=sszymmh[i+2];
i=i+3;
song();
}
}
}

自己改改吧。。你说的不太清。。是不是还要用到键盘作为电子琴按键。。。。提问也有技巧的。。下次说清要求 所要结果 需要语言。。。

Ⅷ 80c51单片机课程设计

是RXD0 --> TXD1 TXD0 -->RXD1
程序是需要两份，这会比较麻烦。

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