实例介绍
【实例简介】一个非常漂亮的可弹奏激光电子竖琴，用手弹的时候遮挡住激光柱，就会发出相应的声音.包括制作过程，程序，原理，实物图，有需要的话可以参考一下
【实例截图】
【文件目录】
激光琴资料
├── 激光竖琴程序.c
├── 激光竖琴原理图.SCHDOC
├── 激光竖琴原理图.pdf
└── 激光竖琴制作教程.doc
0 directories, 4 files
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名称：电子琴
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编写：Cgr
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修改：无
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内容：7个激光束控制7个音符7个LED显示，1个控制播放音乐,1个高中低音切换
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------------------------------------------------*/
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#include "reg52.h"
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#include "intrins.h"
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sbit SPK = P3^4;
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sbit LED_L = P3^7;
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sbit LED_M = P3^6;
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sbit LED_H = P3^5;
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sbit KEY = P3^3;
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#define KEYDELAY 20
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#define KEY_PORT P2
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#define LED_PORT P1
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bit FT_1ms,FT_250ms;
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bit F_PlaySong,F_PlayTone,F_KeyDelay,F_Tone,F_KeyUp,F_Music_Ide;
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unsigned char Freq_H,Freq_L,SongLen,PlayIde,i;
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unsigned char KeyBuf,KeySure,KeyDelay_Cnt,Timer1_Cnt,KeyDelay_Cnt1;
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unsigned char k,Time,PortTemp;
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//世上只有妈妈好数据表
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code unsigned char MUSIC[]={6,2,6, 5,2,2, 3,2,4, 5,2,4, 1,3,4, 6,2,2, 5,2,2,
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6,2,8, 3,2,4, 5,2,2, 6,2,2, 5,2,4, 3,2,4, 1,2,2,
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6,1,2, 5,2,2, 3,2,2, 2,2,8, 2,2,6, 3,2,2, 5,2,4,
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5,2,2, 6,2,2, 3,2,4, 2,2,4, 1,2,8, 5,2,6, 3,2,2,
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2,2,2, 1,2,2, 6,1,2, 1,2,2, 5,1,12, 0,0,0
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};
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/***********************生日快乐**********************/
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code unsigned char MUSIC1[]={
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5,1,2, 5,1,2, 6,1,4, 5,1,4, 1,2,4, 7,1,8,
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5,1,2, 5,1,2, 6,1,4, 5,1,4, 2,2,4, 1,2,8,
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5,1,2, 5,1,2, 5,2,4, 3,2,4, 1,2,4, 7,1,4,
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6,1,8, 4,2,2, 4,2,2, 3,2,4, 1,2,4, 2,2,4,
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1,2,12, 0,0,0};
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// 音阶频率表 高八位
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code unsigned char FREQH[]={
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0xF2,0xF3,0xF5,0xF5,0xF6,0xF7,0xF8,
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0xF9,0xF9,0xFA,0xFA,0xFB,0xFB,0xFC,0xFC, //1,2,3,4,5,6,7,8,i
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0xFC,0xFD,0xFD,0xFD,0xFD,0xFE,
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0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFF,
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} ;
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// 音阶频率表 低八位
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code unsigned char FREQL[]={
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0x42,0xC1,0x17,0xB6,0xD0,0xD1,0xB6,
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0x21,0xE1,0x8C,0xD8,0x68,0xE9,0x5B,0x8F, //1,2,3,4,5,6,7,8,i
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0xEE,0x44, 0x6B,0xB4,0xF4,0x2D,
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0x47,0x77,0xA2,0xB6,0xDA,0xFA,0x16,
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};
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void TimerInit(void)
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{
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TMOD = 0x11;
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TH1 = (65536 - 1000) / 256;
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TL1 = (65536 - 1000) % 256;
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ET0 = 1;
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ET1 = 1;
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TR0 = 1;
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TR1 = 1;
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EA = 1;
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}
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void ScanKey(void)
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{
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if(F_KeyDelay)
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{
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KeyDelay_Cnt --;
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if(KeyDelay_Cnt == 0)
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{
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F_KeyDelay = 0;
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KeySure = KeyBuf;
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F_KeyUp = 1;
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}
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}
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if(KeyBuf != KEY_PORT)
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{
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KeyBuf = KEY_PORT;
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KeyDelay_Cnt = KEYDELAY;
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F_KeyDelay = 1;
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}
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if(!KEY)
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{
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KeyDelay_Cnt1 --;
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if(KeyDelay_Cnt1 == 0)
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{
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if(F_PlaySong == 0)
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{
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F_Music_Ide = !F_Music_Ide;
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F_PlaySong = 1;
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i = 0;
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}
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}
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}
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else
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{
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KeyDelay_Cnt1 = KEYDELAY;
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}
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if(PlayIde == 1)
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{
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LED_L = 1;
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LED_M = 0;
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LED_H = 1;
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}
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if(PlayIde == 2)
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{
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LED_L = 1;
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LED_M = 1;
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LED_H = 0;
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}
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if(PlayIde == 0)
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{
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LED_L = 0;
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LED_M = 1;
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LED_H = 1;
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}
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}
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void main(void)
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{
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TimerInit();
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F_PlayTone = 0;
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PortTemp = 0x7f;
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for(i = 0;i < 7;)
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{
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if(FT_250ms)
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{
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FT_250ms = 0;
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i ;
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PortTemp = _crol_(PortTemp,1);
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LED_PORT= PortTemp;
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}
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}
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for(i = 0;i < 7;)
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{
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if(FT_250ms)
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{
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FT_250ms = 0;
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i ;
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PortTemp = _cror_(PortTemp,1);
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LED_PORT= PortTemp;
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}
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}
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LED_PORT = 0xff;
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i = 0;
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while(1)
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{
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if(FT_1ms)
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{
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FT_1ms = 0;
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WDT_CONTR = 0x38;
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ScanKey();
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if(F_PlaySong)
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{
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if(FT_250ms)
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{
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FT_250ms = 0;
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if(Time > 0)
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{
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Time --;
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}
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else
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{
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PortTemp = 0x01;
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F_PlayTone = 1;
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if(F_Music_Ide)
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{
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k = MUSIC[i] 7 * MUSIC[i 1] - 1;//去音符振荡频率所需数据
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PlayIde = MUSIC[i 1] - 1;
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PortTemp <<= (MUSIC[i]-1);
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Time = MUSIC[i 2] - 1; //节拍时长
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if(! MUSIC[i])
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{
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i = 0;
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F_PlaySong = 0;
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LED_PORT = 0xff;
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F_PlayTone = 0;
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SPK = 1;
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PlayIde = 1;
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Time = 4;
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}
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}
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else
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{
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k = MUSIC1[i] 7 * MUSIC1[i 1] - 1;//去音符振荡频率所需数据
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PlayIde = MUSIC1[i 1] - 1;
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PortTemp <<= (MUSIC1[i]-1);
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Time = MUSIC1[i 2] - 1; //节拍时长
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if(! MUSIC1[i])
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{
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i = 0;
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F_PlaySong = 0;
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LED_PORT = 0xff;
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F_PlayTone = 0;
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SPK = 1;
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PlayIde = 1;
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Time = 4;
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}
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}
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PortTemp = ~PortTemp;
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LED_PORT = PortTemp;
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Freq_H = FREQH[k];
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Freq_L = FREQL[k];
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i = i 3;
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}
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}
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}
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else
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{
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switch(KeySure)
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{
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case 0x81: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=0; LED_PORT = 0xfe;
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break;
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case 0x41: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=1; LED_PORT = 0xfd;
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break;
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case 0x21: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=2; LED_PORT = 0xfb;
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break;
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case 0x11: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=3; LED_PORT = 0xf7;
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break;
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case 0x09: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=4; LED_PORT = 0xef;
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break;
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case 0x05: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=5; LED_PORT = 0xdf;
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break;
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case 0x03: F_Tone = 0;F_PlayTone = 1; Timer1_Cnt = 0;k=6; LED_PORT = 0xbf;
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break;
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case 0x00:
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if(F_KeyUp)
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{
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F_KeyUp = 0;
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PlayIde ;
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if(PlayIde == 3)
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{
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PlayIde = 0;
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}
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}
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break;
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default:
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break;
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}
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Freq_H = FREQH[(PlayIde * 7) k];
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Freq_L = FREQL[(PlayIde * 7) k];
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if(F_Tone)
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{
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F_Tone = 0;
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F_PlayTone = 0;
- ……………………
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