S12单片机版天空之城音乐

#include <hidef.h>      /* common defines and macros */
#include "derivative.h"      /* derivative-specific definitions */
 
#define u8_t    unsigned char
#define u16_t   unsigned int
#define s8_t    char
#define s16_t   int
 
#define PWM0_CLK_FREQ   50000
 
#define L1  M1*2  //低八度
#define L2  M2*2
#define L3  M3*2
#define L4  M4*2
#define L5  M5*2
#define L6  M6*2
#define L7  M7*2
#define M1  (u8_t)(PWM0_CLK_FREQ/523) //中八度
#define M2  (u8_t)(PWM0_CLK_FREQ/587)
#define M3  (u8_t)(PWM0_CLK_FREQ/659)
#define M4  (u8_t)(PWM0_CLK_FREQ/698)
#define M5  (u8_t)(PWM0_CLK_FREQ/784)
#define M6  (u8_t)(PWM0_CLK_FREQ/880)
#define M7  (u8_t)(PWM0_CLK_FREQ/988)
#define H1  M1/2  //高八度
#define H2  M2/2
#define H3  M3/2
#define H4  M4/2
#define H5  M5/2
#define H6  M6/2

#define H7  M7/2
#define NN  0     //休止符
 
/*//基本音阶
const u8_t  note[50]   
  = {L1,  L2, L3, L4, L5, L6, L7,
     M1,  M2, M3, M4, M5, M6, M7,
     H1,  H2, H3, H4, H5, H6, H7,
     NN,  NN, NN, NN, NN, 0xff};
const u8_t  duration[50]   
  = {0x02,0x02,0x02,0x02,0x02,0x02,0x08,
     0x02,0x02,0x02,0x02,0x02,0x02,0x08,
     0x02,0x02,0x02,0x02,0x02,0x02,0x08,
     0x02,0x02,0x02,0x02,0x6, 0};
*/
//天空之城
const u8_t  note[]  //旋律 
  = {     
     M6,M7,  H1,M7,H1 ,H3 ,   M7,M6,L5,M3,M4,M5 ,   M6,M5,M6,H1 ,  M5,M3,M1,M1, M2, M3,
M4,M3 ,M4,H1 ,   M3,M2,M3,H1,H1, H2,    M7,M4 ,M4 ,M7,    M7,NN,M6,M7 
,H1,M7,H1,H3 ,     M7,M6,M5,M3,M4,M5 ,     M6,M5,M6,H1,   M5,M3,M1,M1,M2,M3,   
 M4,H1,M7,M7,H1,   H2,H2,H3,H1,NN,   H1,M7,M6,M6,M7,M5,     H1,M7,H1 ,H3 ,   M7,M6,L5,M3,M4,M5 ,   M6,M5,M6,H1 ,  M5,M3,M1,M1, M2, M3,
M4,M3 ,M4,H1 ,   M3,M2,M3,H1,H1, H2,    M7,M4 ,M4 ,M7,    M7,NN,M6,M7 
,H1,M7,H1,H3 ,     M7,M6,M5,M3,M4,M5 ,     M6,M5,M6,H1,   M5,M3,M1,M1,M2,M3,   
 M4,H1,M7,M7,H1,   H2,H2,H3,H1,NN,   H1,M7,M6,M6,M7,M5,   M6,NN,H1,H2,  
 H3,H2,H3,H5,    H2,NN,M5,M5,   H1,M7,H1,H3,    H3,NN,NN,  M6,M7,H1,M7,H1,H2,   
 H1,M5,M5,NN,   H4,H3,H2,H1,   M7,H1,H2,M7,M5,H5,H4,   H3,H3,  H6,H5,H5, 
 H3,H2,H1,NN,H1,   H2,H1,H2,H2,H5,   H3,NN,H3,   H6,H5,H5,  H3,H2,H1,NN,H1,  
 H2,H1,H2,H2,M7,   M6,NN,M6,M7,    M6,NN,H1,H2,  
 H3,H2,H3,H5,    H2,NN,M5,M5,   H1,M7,H1,H3,    H3,NN,NN,  M6,M7,H1,M7,H1,H2,