// MCU BASIC: https://www.basic4mcu.com
// DateTime : 2018-12-16 오전 8:07:00
// by Ok-Hyun Park
//
#include <io.h>
//
typedef enum{ra_1,si_1,do_2,re_2,mi_2,fa_2,sol_2,ra_2,high} melody_code; //high: 불가청 음역대 쉼표 표시
typedef enum{tf,f,sf,o,t} speed_code; // 1/4,1/2,3/4,1,2
//
const char clock_set[]={0x6F,0x6E,0x6E,0x6E,0x6E,0x6E,0x6E,0x6E,0x6A};
const char ocr0_set[] ={142,253,238,212,189,179,159,142,1};
const int  timer[]    ={188,375,563,750,1500}; // 단위: ms
const char led[]      ={0x01,0x03,0x07,0x0f,0xff};
const char oct[]      ={0x06,0x06,0x5b,0x5b,0x5b,0x5b,0x5b,0x5b,0x00};
const char scale[]    ={0x77,0x39,0x06,0x4f,0x6d,0x7d,0x7f,0x77,0x00};
//
typedef struct{ melody_code melody;  speed_code speed;} MUSIC_CODE;
//
#define LENGTH  99
//
const MUSIC_CODE musicCode1[LENGTH]={
  {sol_2,o},{mi_2,o},{do_2,o},{high,o},{re_2,sf},{mi_2,tf},{fa_2,f},{re_2,f},{si_1,o},{high,o}, // 즐겁게 춤을추다가
  {do_2,o},{do_2,f},{do_2,f},{mi_2,o},{mi_2,o},{sol_2,f},{high,f},{high,o},{high,t},            // 그대로 멈춰라
  {sol_2,o},{mi_2,o},{do_2,o},{high,o},{re_2,sf},{mi_2,tf},{fa_2,f},{re_2,f},{si_1,o},{high,o}, // 즐겁게 춤을추다가
  {ra_1,o},{ra_1,f},{ra_1,f},{si_1,o},{si_1,o},{do_2,f},{high,f},{high,o},{high,t},             // 그대로 멈춰라
  {ra_2,o},{ra_2,o},{ra_2,f},{ra_2,f},{ra_2,f},{ra_2,f},                                        // 눈도 감지말고
  {sol_2,o},{sol_2,f},{sol_2,f},{sol_2,o},{sol_2,o},                                            // 웃지도 말고
  {fa_2,o},{fa_2,f},{fa_2,f},{fa_2,o},{fa_2,o},                                                 // 울지도 말고
  {mi_2,f},{mi_2,f},{fa_2,f},{fa_2,f},{sol_2,f},{high,f},{high,o},                              // 움직이지마
  {sol_2,o},{mi_2,o},{do_2,o},{high,o},{re_2,sf},{mi_2,tf},{fa_2,f},{re_2,tf},{si_1,o},{high,o},// 즐겁게 춤을추다가
  {do_2,o},{do_2,tf},{do_2,f},{mi_2,o},{mi_2,o},{sol_2,f},{high,f},{high,o},{high,t},           // 그대로 멈춰라
  {sol_2,o},{mi_2,o},{do_2,o},{high,o},{re_2,sf},{mi_2,tf},{fa_2,f},{re_2,f},{si_1,o},{high,o}, // 즐겁게 춤을추다가
  {ra_1,o},{ra_1,f},{ra_1,f},{si_1,o},{si_1,o},{do_2,f},{high,f},{high,o},{high,t}              // 그대로 멈춰라
};
//
int ms=0;
//
interrupt[TIM2_COMP]void isr_timer2_comp(){
  ms++;
}
//
void main(){
  int k;
  DDRB=0x10;  DDRA=0XFF;  DDRC=0xFF; DDRG=0x0F;
  TCCR2=0x0B; OCR2=249;  TIMSK=0x80; //16000000/64/(1+249),1ms
  SREG=0x80;
  while(1){
    for(k=0;k<=98;k++){
      ms=0;
      while(timer[musicCode1[k].speed]>ms){                     // 박자 조절
        OCR0=ocr0_set[musicCode1[k].melody];
        TCCR0=clock_set[musicCode1[k].melody];
        PORTA=led[musicCode1[k].speed];                         // led 박자 길이 표시
        if(ms&1){ PORTC=oct[musicCode1[k].melody];   PORTG=8; } // 옥타브 표시
        else    { PORTC=scale[musicCode1[k].melody]; PORTG=1; } // 음계 표시
      }
    }
  }
}
 
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