AVR单片机模拟电子琴.docx

1、AVR单片机模拟电子琴附一：#include config.h /决定是否播放 ,全局变量/uint16 *p;/歌曲选择指针 uint8 list=0;/歌曲选择变量 uint8 input=1; uint8 pause=1; uint8 state=0,stop=1,play=1,key; uint8 MUSIC_DATA502; uint8 i=0,length=50,key_buffer;/i 歌曲播放指针 /6 7 1 2 3 5 6 7 1flash uint16 Mode_Data16=440,494,523,587,659,698,784, 880,998,1046,1156,

2、1318,1396,1568,0;/存放声音的频率/* 音乐产生函数 * 功能：输出频率为x的方波，延时y MS* 范围：x:100-20000Hz，0：不发声 * y:0-65536 MS */extern void sound(uint16 i) /uint16 x;/x=music_datai0; /取音乐的频率数据if(i!=0) /x=; /1M时钟数据计算OCR1A=500000/i; /比较值赋值TCCR1A = 0x40; /允许比较反转输出elseTCCR1A = 0x00; /频率为0，休止符，不发声/* 延时函数：1M时钟时为MS */extern void delay_

3、ms(uint16 i) uint8 a;for(;i;i-) for (a = 220; a; a-) /倍率 原来220 ;flash uint16 kaqiusha2= 440,600,494,200,523,600,443,200,523,400,494,200,440,200,494,400,330,400,494,600,523,200,578,600,494,200,578,400,523,200,494,200,440,800,659,400,880,400,784,400,880,200,784,200,698,400,659,200,578,200,659,400,440,

4、400, 0,200,698,400,578,200,659,600,523,200,494,200,330,200,523,200,494,200,440,800,659,400,880,400,784,400,880,200,784,200,698,400,659,200,578,200,659,400,440,400, 0,200,698,400,578,200,659,600,523,200,494,200,330,200,523,200,494,200,440,800,0,0; void kaqiusha_sing(void) sound(kaqiushai0); /输出音符 / P

5、ORTA=seg7_data(i%16); delay_ms(kaqiushai1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15) list=0; flash uint16 moscow_night2= 440,400,523,400,659,400,523,400,587,800,523,400,494,400,659,800,587,800,440,1600,523,400,659,400,784,400,784,400,880,800,784,400,698,400,659,1600,740,800,831,800,988,400,880,400,6

6、59,1200,494,800,440,400,659,400,587,400,698,1600,784,400,698,400,659,800,587,400,523,400,659,800,587,800,440,1600,740,800,831,800,988,400,880,400,659,1200,494,800,440,400,659,400,587,400,698,1600,784,400,698,400,659,800,587,400,523,400,659,800,587,800,440,3200,0,0; void moscow_night_sing(void) sound

7、(moscow_nighti0); /输出音符 / PORTA=seg7_data(i%16); delay_ms(moscow_nighti1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15) list=0; flash uint16 super_mario2= 659,200,659,200,0,200,659,200,0,200,523,200,659,200,0,200,784,400,0,400,392,400,0,400,523,200,0,400,392,400,0,400,330,200,0,400,440,200,0,200,494,200

8、,0,200,466,200,440,200,0,200,392,266,659,266,784,266,880,200,0,200,698,200,784,200,0,200,659,200,0,200,523,200,587,200,494,200,0,400,523,200,0,400,392,400,0,400,330,200,0,400,440,200,0,200,494,200,0,200,466,200,440,200,0,200,392,266,659,266,784,266,880,200,0,200,698,200,784,200,0,200,659,200,0,200,5

9、23,200,587,200,494,200,0,800,784,200,740,200,698,200,622,200,0,200,659,200,0,200,415,200,440,200,523,200,0,200,440,200,523,200,587,200,0,400,784,200,740,200,698,200,622,200,0,200,659,200,0,200,1047,200,0,200,1047,200,1047,200,0,800,784,200,740,200,698,200,622,200,0,200,659,200,0,200,415,200,440,200,

10、523,200,0,200,440,200,523,200,587,200,0,200,622,200,0,400,587,200,0,400,523,200,0,600,392,200,392,200,0,200,262,200,0,400,784,200,740,200,698,200,622,200,0,200,659,200,0,200,415,200,440,200,523,200,0,200,440,200,523,200,587,200,0,400,784,200,740,200,698,200,622,200,0,200,659,200,0,200,1047,200,0,200

11、,1047,200,1047,200,0,800,784,200,740,200,698,200,622,200,0,200,659,200,0,200,415,200,440,200,523,200,0,200,440,200,523,200,587,200,0,200,622,200,0,400,587,200,0,400,523,200,0,600,392,200,392,200,0,200,262,200,0,400,0,0;/ super mario void super_mario_sing(void) sound(super_marioi0); /输出音符 / PORTA=seg

12、7_data(i%16); delay_ms(super_marioi1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15) list=0; flash uint16 butterfly_lovers2= 247,800,294,600,330,200,392,600,440,200,330,200,392,200,294,200,0,200,587,600,784,200,659,200,587,200,494,200,587,200,440,1400,0,200,440,400,440,200,494,200,370,400,330,400,294,600

13、,330,200,392,400,440,400,247,400,392,400,330,200,294,200,330,200,392,200,294,1400,0,200,494,600,587,200,370,400,440,400,330,200,392,200,294,1200,247,300,294,100,247,400,294,300,330,100,370,200,440,200,330,1200,294,200,330,200,392,600,440,200,587,400,494,400,440,400,494,200,440,200,392,400,330,200,29

14、4,200,247,400,0,400,392,400,0,400,330,300,392,100,330,200,294,200,247,200,294,200,330,200,392,200,294,1400,0,0; /梁祝歌曲 void butterfly_lovers_sing(void) sound(butterfly_loversi0); /输出音符 / PORTA=seg7_data(i%16); delay_ms(butterfly_loversi1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15) list=0; flash uint16

15、 Sdu_Song2= 698,300,698,100,698,200,698,200,698,200,698,200,659,200,587,200,587,200,523,1000,349,400,440,400,523,400,523,200,466,400,440,200,466,400,440,400,392,800,392,300,392,100,392,200,392,200,392,200,370,200,392,200,440,200,466,200,523,200,587,200,659,200,698,200,784,600,880,600,784,200,784,200

16、,523,600,698,1600,0,0;/song of SDUvoid Sdu_Song_sing(void) sound(butterfly_loversi0); /输出音符 / PORTA=seg7_data(i%16); delay_ms(Sdu_Songi1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15) list=0; flash uint16 music_data2=440,400,440,400,659,400,659,400,740,400,740,400,659,800,587,400,587,400,554,400,554,400

17、,494,400,494,400,440,800,659,400,659,400,587,400,587,400,554,400,554,400,497,800,659,400,659,400,587,400,587,400,554,400,554,400,497,800,440,400,440,400,659,400,659,400,740,400,740,400,659,800,587,400,587,400,554,400,554,400,494,400,494,400,440,800,0,0;/ abcdefgvoid music_data_sing(void) sound(music

18、_datai0); /输出音符 / PORTA=seg7_data(i%16); delay_ms(music_datai1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15) list=0; /* 端口初始化函数 */void port_init(void)DDRD|=0xa0; /D5口配置为输出，驱动蜂鸣器PORTD|=0x0f;DDRB=0xf0;PORTB=0X0F;DDRA=0xff;Seg7_Led_Init();MCUCR=0x00;GICR = 0x40;SEI();/*name： list_deal();function: deal wit

19、h many songs of the machine*/extern void list_deal(void) switch(list) case 0: butterfly_lovers_sing();break; case 1: moscow_night_sing();break; case 2: Sdu_Song_sing();break; case 3: super_mario_sing();break; case 4: kaqiusha_sing();break; case 5: music_data_sing();break; /*name： key_deal();function

20、: deal with states of the machine*/extern void key_deal(void)if(state=0)/播放状态 while(play&pause) list_deal(); /* sound(music_datai0); /输出音符 delay_ms(music_datai1);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=15; if(!music_datai+1) i=0; */调试用 /播放选择的音乐 /播放modeelse while(play&pause&(input) sound(Mode_DataMUSIC

21、_DATAi0); /输出音符 PORTA=seg7_data(i%16); delay_ms(400);/节拍延时 TCCR1A = 0x00; /奏完一个音符停止 PORTD|=1length) break;else i+=2;break; if(!play) if(+list5)list=0;break; case BACK: if(play=1) if(i2)i=0;break;else i-=2;break; if(!play) if(-list0)list=5;break; default :break; ; Seg7_Data_Port=seg7_data(i); else if(state) if(key=8)&input) add(key); MUSIC_DATAi+0=key; MUSIC_DATAi-11=400; sound(Mode_Datakey); delay_ms(200);