#define LCDPORT P0 uchar code tab[]=%uchar code tab1[]=%uchar code tab2[]=%uchar code tab3[]=%uchar code tab4[]=%uchar code tab5[]=%uchar code tab6[]=%uchar code tab7[]=\esterday%uchar code tab8[]=%uchar code tab9[]=\outh League\sbit LCDE=P2^2; sbit LCDRW=P2^1; sbit LCDRS=P2^0; void Delay() { }
void WriteCMD(uchar Commond)//LCD写指令函数 {
Delay(); //先延时。
LCDE=1; //然后把ＬＣＤ改为写入命令状态。 LCDRS=0; LCDRW=0;
LCDPORT=Commond; //再输出命令。 LCDE=0; //最后执行命令。 }
void WriteData(uchar dat)//ＬＣＤ写数据函数 { Delay(); //先延时。
LCDE=1; //然后把ＬＣＤ改为写入数据状态。 LCDRS=1; LCDRW=0;
LCDPORT=dat; //再输出数据。 LCDE=0; //最后显示数据。 } void init() {
LCDRW=0; LCDE=0; WriteCMD(0x38);
uint uiCount;
for(uiCount=0;uiCount<250;uiCount++);
WriteCMD(0x0c);
27
}
WriteCMD(0x06); WriteCMD(0x01); WriteCMD(0x80);
void mydelay(int x) { int i,j; for(i=x;i>0;i--) for(j=255;j>0;j--); }
发声头文件：
#ifndef __SOUNDPLAY_H_ #define __SOUNDPLAY_H_ #define SYSTEM_OSC #define SOUND_SPACE sbit BeepIO = sbit K1=P1^7;
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 }; 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 void InitialSound(void) { }
void BeepTimer0(void) interrupt 1 //音符发生中断 {
12000000
//定义晶振频率12000000HZ
4/5 P3^7;
//定义普通音符演奏的长度分率,//每4分音符间隔
//定义输出管脚
//1~7
BeepIO = 0;
Sound_Temp_TH1 = (65535-(1/1200)*SYSTEM_OSC)/256; (10ms的初装值)
Sound_Temp_TL1 = (65535-(1/1200)*SYSTEM_OSC)%6; // 计算TH1应装入的初值 TH1 = Sound_Temp_TH1; TL1 = Sound_Temp_TL1; TMOD |= 0x11; ET0 = 1; ET1 = 0; TR0 = 0; TR1 = 0; EA = 1;
// 计算TL1应装入的初值
BeepIO = !BeepIO;
28
}
TH0 = Sound_Temp_TH0; TL0 = Sound_Temp_TL0;
void Play(unsigned char *Sound,unsigned char Signature,unsigned Octachord,unsigned int Speed) {
unsigned int NewFreTab[12]; unsigned char i,j;
//新的频率表
unsigned int Point,LDiv,LDiv0,LDiv1,LDiv2,LDiv4,CurrentFre,Temp_T,SoundLength; unsigned char Tone,Length,SL,SH,SM,SLen,XG,FD; for(i=0;i<12;i++) { }
SoundLength = 0;
while(Sound[SoundLength] != 0x00) //计算歌曲长度 { } Point = 0;
Tone = Sound[Point]; Length = Sound[Point+1];
LDiv0 = 12000/Speed;
LDiv4 = LDiv0/4; TR0 = 0; TR1 = 1;
while(Point < SoundLength&&K1==1) {
SL=Tone;
29
// 根据调号及升降八度来生成新的频率表
j = i + Signature; if(j > 11) { } else
NewFreTab[i] = FreTab[j]; if(Octachord == 1) NewFreTab[i]>>=2; else if(Octachord == 3) NewFreTab[i]<<=2;
j = j-12;
NewFreTab[i] = FreTab[j]*2;
SoundLength+=2;
// 读出第一个音符和它时时值
// 算出1分音符的长度(几个10ms) // 算出4分音符的长度
LDiv4 = LDiv4-LDiv4*SOUND_SPACE; // 普通音最长间隔标准
//计算出音符
SM=Tone/10; SH=Tone/100; if(SL!=0) { }
//计算出高低音 //计算出是否升半
CurrentFre = NewFreTab[SignTab[SL-1]+SH]; //查出对应音符的频率
if (SM==1) CurrentFre >>= 2; if (SM==3) CurrentFre <<= 2;
//低音 //高音
Temp_T = 65536-(50000/CurrentFre)*10/(12000000/SYSTEM_OSC);//计算计数Sound_Temp_TH0 = Temp_T/256; Sound_Temp_TL0 = Temp_T%6; TH0 = Sound_Temp_TH0;
TL0 = Sound_Temp_TL0 + 12; //加12是对中断延时的补偿
器初值
SLen=LengthTab[Length]; //算出是几分音符 XG=Length/10; FD=Length/100; LDiv=LDiv0/SLen; if (FD==1) {
TR0=1;
for(i=LDiv1;i>0;i--) {
while(TF1==0);
TH1 = Sound_Temp_TH1; TL1 = Sound_Temp_TL1; TF1=0;
30
//算出音符类型(0普通1连音2顿音) //算出连音音符演奏的长度(多少个10ms)
LDiv=LDiv+LDiv/2; if(XG!=1)
//算出普通音符的演奏长度
if(XG==0) if (SLen<=4) LDiv1=LDiv-LDiv4; else else else
LDiv1=LDiv;
LDiv2=LDiv-LDiv1;
//算出不发音的长度
if(SL==0) LDiv1=0;
LDiv1=LDiv/2;
//算出顿音的演奏长度
LDiv1=LDiv*SOUND_SPACE;
if (SL!=0)
//发规定长度的音
}
}
}
}
if(LDiv2!=0) { }
Point+=2; Tone=Sound[Point]; Length=Sound[Point+1];
TR0=0; BeepIO=0; for(i=LDiv2;i>0;i--) { }
while(TF1==0);
TH1 = Sound_Temp_TH1; TL1 = Sound_Temp_TL1; TF1=0;
//音符间的间隔
BeepIO = 0;
#endif //音符代码：
unsigned char code Music_Girl[]={ //梁祝
0x1B,0x02, 0x1A,0x02, 0x1B,0x02, 0x19,0x66, 0x1A,0x03, 0x18,0x02, 0x17,0x02, 0x16,0x0D, 0x17,0x03, 0x18,0x0D, 0x17,0x03, 0x19,0x66, 0x17,0x03, 0x16,0x0D, 0x17,0x03, 0x19,0x0D, 0x16,0x03, 0x17,0x0D, 0x18,0x03, 0x17,0x0D, 0x16,0x03, 0x15,0x00, 0x19,0x02, 0x11,0x02, 0x16,0x02, 0x10,0x02, 0x15,0x02, 0x0F,0x00, 0x10,0x03, 0x15,0x03, 0x0F,0x00, 0x0D,0x01, 0x0F,0x66, 0x10,0x03, 0x15,0x66, 0x16,0x03, 0x10,0x0D, 0x15,0x03, 0x0F,0x03, 0x19,0x66, 0x1F,0x03, 0x1A,0x0D, 0x19,0x03, 0x17,0x03, 0x19,0x03, 0x16,0x00, 0x16,0x66, 0x17,0x03, 0x11,0x0C, 0x10,0x02, 0x19,0x66, 0x10,0x03, 0x15,0x02, 0x16,0x02, 0x0D,0x02, 0x15,0x02, 0x10,0x0D, 0x0F,0x03, 0x10,0x0D, 0x15,0x03, 0x0F,0x00, 0x17,0x66, 0x19,0x03, 0x11,0x02, 0x16,0x02, 0x10,0x0D, 0x15,0x03, 0x0F,0x15, 0x0D,0x03, 0x0F,0x02, 0x0D,0x03, 0x0F,0x0D, 0x10,0x03, 0x11,0x0D, 0x16,0x03, 0x10,0x00, 0x0F,0x0D, 0x10,0x03, 0x15,0x66, 0x16,0x03, 0x19,0x02, 0x17,0x02, 0x16,0x02, 0x17,0x0D, 0x16,0x03, 0x15,0x02, 0x10,0x0D, 0x0F,0x03, 0x0D,0x01, 0x15,0x01, 0x10,0x03, 0x15,0x04, 0x10,0x0D, 0x0F,0x03, 0x0D,0x0D,
31
百度搜索“77cn”或“免费范文网”即可找到本站免费阅读全部范文。收藏本站方便下次阅读，免费范文网，提供经典小说综合文库基于单片机的电子音乐盒的设计 - 图文(7)在线全文阅读。
相关推荐：