音乐.c

AVR之ATMega16

//内部晶振 8M
#include <iom16v.h>
#include <macros.h>
#include"delay.h"

/*------宏定义------*/
#define uchar	unsigned char
#define uint	unsigned int
#define DO	64580	//523
#define RE	64684	//587
#define	MI	64777	//659
#define FA	64820	//698
#define	SO	64898	//784
#define LA	64968	//880
#define	XI	65030	//988                	                        	
#define DO_H	65058	//1046
#define RE_H	65110	//1174
#define MI_H	65157	//1318
#define FA_H	65178	//1397
#define SO_H	65217	//1568
#define LA_H	65252	//1760
#define XI_H	65283	//1976
#define DO_HH	65297	//2093
					  	
const unsigned char sound[]={ //乐曲数据表
                        /****************两只老虎**********************/
						0x48,0x49,0x4a,0x48,0x48,0x49,0x4a,0x48,0x4a,0x4b,0x8c,
						0x4a,0x4b,0x8c,0x2c,0x2d,0x2c,0x2b,0x4a,0x48,
					    0x2c,0x2d,0x2c,0x2b,0x4a,0x48,0x48,0x45,0x88,0x48,0x45,0x88,
						/*************梁祝****************/
						0x40,0x4c,0x4a,0x49,0xc8,0x49,0x47,0x46,
						0xe5,0x4e,0x4d,0x4e,0x6c,0x2d,0x4e,
						0x4d,0x2c,0x2d,0x2e,0x2d,0x6f,0x2d,
						0x2c,0x2d,0x2c,0x29,0x2a,0x2b,
						0x2a,0x29,0xc8,0x4c,0x4e,0x49,0x46,0x48,
						0xc5,0x26,0x28,0xe5,0x83,0x65,0x26,
						0x68,0x29,0x26,0x28,0x45,0x6c,0x2f,0x3d,
						0x1c,0x2a,0x2c,0xe9,0x69,0x2a,0x47,0x46,
						0x65,0x26,0x48,0x49,0x43,0x48,0x36,0x15,
						0x26,0x18,0xe5,0x6a,0x2c,0x47,0x49,0x26,
						0x28,0x85,0x33,0x15,0x43,0x25,0x26,0x27,
						0x29,0xc6,0x25,0x26,0x68,0x29,0x4c,0x4a,
						0x49,0x2a,0x29,0x49,0x26,0x25,0x83,0x88,
						0x26,0x28,0x26,0x25,0x23,0x25,0x26,0x28,
						0xc5,0x04,0x04,
						/*************希望*****************/	
						0x49,0x4a,0x4a,0x6a,0x29,0x48,0x46,0x68,
						0x29,0xc8,0x49,0x4a,0x4a,0x6a,0x2c,0x4a,
						0x4a,0x49,0x4a,0xca,0x4c,0x4d,0x4d,0x6d,
						0x2c,0x4a,0x4a,0x4c,0x4d,0xcc,0x49,0x4a,
						0x4a,0x69,0x2a,0x4a,0x49,0x4a,0x46,
						0x18,0xe6,0x29,0x29,0x29,0x28,0x46,
						0x29,0x29,0x29,0x28,0x46,0x49,0x4a,
						0x48,0x69,0x2a,0x4c,0x2d,0x2d,0x2d,
						0x2c,0x4a,0x29,0x29,0x29,0x28,0x46,
						0x46,0x45,0x46,0xe6,
						/***************喀秋莎********************/
						0x66,0x27,0x68,0x26,0x28,0x28,0x27,0x26,0x47,0x43,
						0x67,0x28,0x69,0x27,0x29,0x29,0x28,0x27,0x46,0x46,
						0x4a,0x4d,0x4c,0x2d,0x2c,0x2b,0x2b,0x2a,0x29,0x4a,
						0x46,0x20,0x4b,0x29,0x6a,0x28,0x27,0x23,0x28,0x27,
						0x46,0x46,0x4a,0x4d,0x4c,0x2d,0x2c,0x2b,0x2b,0x2a,
						0x29,0x4a,0x46,0x20,0x4b,0x29,0x6a,0x28,0x27,0x23,
						0x28,0x27,0x46,0x46,

						0x00};			  		  						  
/*	  		    音阶表				*/	
const unsigned int TONETABLE[15]={DO,RE,MI,FA,SO,LA,XI,DO_H,
			    	 	RE_H,MI_H,FA_H,SO_H,LA_H,XI_H,DO_HH};
			    	 	
/*			  音阶重装常数			*/						
unsigned int toneconst;								  							   						 				 	 	 
//端口初始化
void port_init(void)
{
 PORTA = 0x00;//设置端口方向、数据
 DDRA  = 0x03;
 PORTB = 0x00;
 DDRB  = 0x00;
 PORTC = 0x00;
 DDRC  = 0x00;
 PORTD = 0x00;
 DDRD  = 0x00;
}


//定时器T0初始化
void timer0_init(void)
{
 TCCR0  = 0x00;//停止定时器
 TCNT0  = 0xFF;//初始值
 OCR0   = 0xFE;//匹配值
 TIMSK |= 0x00;//溢出中断不允许
 TCCR0  = 0x02;//启动定时器
}

void init_devices(void)
{
 CLI(); //禁止所有中断
 MCUCR  = 0x00;//外部中断触发方式
 MCUCSR = 0x80;//禁止JTAG
 GICR   = 0x00;//外部中断使能
 port_init();
 timer0_init();
 SEI();//开全局中断
}
//T0溢出中断服务程序
#pragma interrupt_handler timer0_ovf_isr:10
void timer0_ovf_isr(void)
{
	  TCNT0=toneconst;
	  PORTA^=BIT(PA0);
} 	 
void music(void)
 {
	  unsigned char temp=0,temp1=0;
	  unsigned int sound_add=0;
	  temp1=sound[sound_add];
	 	  while(temp1!=0)
 	  		{
			 temp=temp1; 
			 temp&=0x0f;
			 if(temp!=0)
			   {
			    TIMSK|=(1<<TOIE0);//根据SOUNDTABLE中数据的低四位选择音调频率
			    temp--;			   
        	    toneconst=TONETABLE[temp];
			    TCNT0=toneconst;
 			   }
			 temp=temp1;
			 temp>>=4;
			 temp&=0x0f;
			 DelayMS(temp);//根据SOUNDTABLE中数据的高四位*5后，为音调持续时间
			 TIMSK&=~(1<<TOIE0);
			 sound_add++;
			 temp1=sound[sound_add];
			
			}
}	 	 	 	 





//主函数
void main(void)
{
 init_devices();
 //在这继续添加你的代码
 while(1)
 {
  music();
 }
}