【【51单片机实现天空之城】】

编写天空之城，回忆动画之神

天空之城
我们再执行前先进行一个宏定义吧
为什么因为每次去对照翻看excel表格 真的太麻烦 了 所以我们现在去 设计一个宏定义
写好了给好兄弟们

//音符与索引对应表，P：休止符，L：低音，M：中音，H：高音，下划线：升半音符号#
#define P    0
#define L1    1
#define L1_    2
#define L2    3
#define L2_    4
#define L3    5
#define L4    6
#define L4_    7
#define L5    8
#define L5_    9
#define L6    10
#define L6_    11
#define L7    12
#define M1    13
#define M1_    14
#define M2    15
#define M2_    16
#define M3    17
#define M4    18
#define M4_    19
#define M5    20
#define M5_    21
#define M6    22
#define M6_    23
#define M7    24
#define H1    25
#define H1_    26
#define H2    27
#define H2_    28
#define H3    29
#define H4    30
#define H4_    31
#define H5    32
#define H5_    33
#define H6    34
#define H6_    35
#define H7    36

最后我们实现一下总的函数

main.c

#include 
#include "Delay.h"
#include"Timer0.h"

sbit Buzzer=P2^5;

//音符与索引对应表，P：休止符，L：低音，M：中音，H：高音，下划线：升半音符号#
#define P    0
#define L1    1
#define L1_    2
#define L2    3
#define L2_    4
#define L3    5
#define L4    6
#define L4_    7
#define L5    8
#define L5_    9
#define L6    10
#define L6_    11
#define L7    12
#define M1    13
#define M1_    14
#define M2    15
#define M2_    16
#define M3    17
#define M4    18
#define M4_    19
#define M5    20
#define M5_    21
#define M6    22
#define M6_    23
#define M7    24
#define H1    25
#define H1_    26
#define H2    27
#define H2_    28
#define H3    29
#define H4    30
#define H4_    31
#define H5    32
#define H5_    33
#define H6    34
#define H6_    35
#define H7    36


#define SPEED 500  //我们以4分音符为基准
unsigned int FreqTable[]={
    0,
    63628,63731,63835,63928,64021,64103,64185,64260,64331,64400,64463,64524,
    64580,64633,64684,64732,64777,64820,64860,64898,64934,64968,65000,65030,
    65058,65085,65110,65134,65157,65178,65198,65217,65235,65252,65268,65283
};

unsigned char code  Music[]={
 //1
    P,    4,
    P,    4,
    P,    4,
    M6,    2,
    M7,    2,
    
    H1,    4+2,
    M7,    2,
    H1,    4,
    H3,    4,
    
    M7,    4+4+4,
    M3,    2,
    M3,    2,
    
    //2
    M6,    4+2,
    M5,    2,
    M6, 4,
    H1,    4,
    
    M5,    4+4+4,
    M3,    4,
    
    M4,    4+2,
    M3,    2,
    M4,    4,
    H1,    4,
    
    //3
    M3,    4+4,
    P,    2,
    H1,    2,
    H1,    2,
    H1,    2,
    
    M7,    4+2,
    M4_,2,
    M4_,4,
    M7,    4,
    
    M7,    8,
    P,    4,
    M6,    2,
    M7,    2,
    
    //4
    H1,    4+2,
    M7,    2,
    H1,    4,
    H3,    4,
    
    M7,    4+4+4,
    M3,    2,
    M3,    2,
    
    M6,    4+2,
    M5,    2,
    M6, 4,
    H1,    4,
    
    //5
    M5,    4+4+4,
    M2,    2,
    M3,    2,
    
    M4,    4,
    H1,    2,
    M7,    2+2,
    H1,    2+4,
    
    H2,    2,
    H2,    2,
    H3,    2,
    H1,    2+4+4,
    
    //6
    H1,    2,
    M7,    2,
    M6,    2,
    M6,    2,
    M7,    4,
    M5_,4,
    
    
    M6,    4+4+4,
    H1,    2,
    H2,    2,
    
    H3,    4+2,
    H2,    2,
    H3,    4,
    H5,    4,
    
    //7
    H2,    4+4+4,
    M5,    2,
    M5,    2,
    
    H1,    4+2,
    M7,    2,
    H1,    4,
    H3,    4,
    
    H3,    4+4+4+4,
    
    //8
    M6,    2,
    M7,    2,
    H1,    4,
    M7,    4,
    H2,    2,
    H2,    2,
    
    H1,    4+2,
    M5,    2+4+4,
    
    H4,    4,
    H3,    4,
    H3,    4,
    H1,    4,
    
    //9
    H3,    4+4+4,
    H3,    4,
    
    H6,    4+4,
    H5,    4,
    H5,    4,
    
    H3,    2,
    H2,    2,
    H1,    4+4,
    P,    2,
    H1,    2,
    
    //10
    H2,    4,
    H1,    2,
    H2,    2,
    H2,    4,
    H5,    4,
    
    H3,    4+4+4,
    H3,    4,
    
    H6,    4+4,
    H5,    4+4,
    
    //11
    H3,    2,
    H2,    2,
    H1,    4+4,
    P,    2,
    H1,    2,
    
    H2,    4,
    H1,    2,
    H2,    2+4,
    M7,    4,
    
    M6,    4+4+4,
    P,    4,
    0xFF
};

    unsigned char FreqSelect,MusicSelect;
    
void main()
{
    
    Timer0Init();
    while(1)
    {
        if(Music[MusicSelect]!=0xFF)
        {
        FreqSelect=Music[MusicSelect];
        MusicSelect++;
        Delay(SPEED/4*Music[MusicSelect]);
        MusicSelect++;
       TR0=0;
        Delay(5);
        TR0=1;    
            
        }
        else
        {
            TR0=0;
            while(1);
            
        }
        
    }    
    
}


void Timer0_Routine() interrupt 1
{
    if(FreqTable[FreqSelect])    //如果不是休止符
    {
        /*取对应频率值的重装载值到定时器*/
        TL0 = FreqTable[FreqSelect]%256;        //设置定时初值
        TH0 = FreqTable[FreqSelect]/256;        //设置定时初值
        Buzzer=!Buzzer;    //翻转蜂鸣器IO口
    }
}

Delay.h

#ifndef __DELAY_H__
#define __DELAY_H__

void Delay(unsigned int xms);

#endif

Delay.c

void Delay(unsigned int xms)
{
	unsigned char i, j;
	while(xms--)
	{
		i = 2;
		j = 239;
		do
		{
			while (--j);
		} while (--i);
	}
}

Timer0.c

#include 

/**
  * @brief  定时器0初始化，1毫秒@12.000MHz
  * @param  无
  * @retval 无
  */
void Timer0Init(void)
{
	TMOD &= 0xF0;		//设置定时器模式
	TMOD |= 0x01;		//设置定时器模式
	TL0 = 0x18;		//设置定时初值
	TH0 = 0xFC;		//设置定时初值
	TF0 = 0;		//清除TF0标志
	TR0 = 1;		//定时器0开始计时
	ET0=1;
	EA=1;
	PT0=0;
}

/*定时器中断函数模板
void Timer0_Routine() interrupt 1
{
	static unsigned int T0Count;
	TL0 = 0x18;		//设置定时初值
	TH0 = 0xFC;		//设置定时初值
	T0Count++;
	if(T0Count>=1000)
	{
		T0Count=0;
		
	}
}
*/

Timer0.h

#ifndef __TIMER0_H__
#define __TIMER0_H__

void Timer0Init(void);

#endif