main.c~

单片机做音乐播放。欢迎下载并参考

/*********************************************

Project : Music
Version : V1.1
Date    : 08.06.2001
Author  : Holger Buss
          http://www.mikrocontroller.com

Chip type           : AT90S8535 or AT90S8535
Clock frequency     : 8,000000 MHz
Memory model        : Small
Internal SRAM size  : 512
External SRAM size  : 0
Data Stack size     : 128
*********************************************/

#include <90s8535.h>

// Alphanumeric LCD Module functions
#asm
   .equ __lcd_port=0x15
#endasm
#include <lcd.h>
#include <delay.h>
#include <stdio.h>

// Declare your global variables here

#define Taste1 PINA.7
#define Taste2 PINA.6
#define Taste3 PINA.5
#define Taste4 PINA.4
#define Taste5 PINA.3

#include "Ton.c"
unsigned char T1Reload;
bit Play;

// Timer 0 overflow interrupt service routine
interrupt [TIM0_OVF] void timer0_ovf_isr(void)
{
// Reinitialize Timer's 0 value
 TCNT0 = T1Reload;
 if(T1Reload != Silence && Play)
  {
   if(Taste2) PORTB.4 = !PORTB.4; // Relais
   else       PORTB.3 = !PORTB.3; // Speaker
  }
 else
  {
   PORTB.3 = 0;
   PORTB.4 = 0;
  } 
}
// Timer 2 overflow interrupt service routine
interrupt [TIM2_OVF] void timer2_ovf_isr(void)
{
// Reinitialize Timer's 2 value
// TCNT2 = T2Reload;
// Place your code here
}

// Declare your global variables here

void main(void)
{
// Declare your local variables here
char txt[16];
unsigned char t,x;
int Speed = 6; 
unsigned char Song = 0;

t=0x80;
x=0x40;

// Input/Output Ports initialization
// Port A
PORTA=0x00;
DDRA=0x00;

// Port B
PORTB=0x00;
DDRB=0x1f;

// Port C
PORTC=0x00;
DDRC=0x00;

// Port D
PORTD=0x00;
DDRD=0b11000000;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 125,000 kHz
// Mode: Output Compare
// OC0 output: Disconnected
TCCR0=0x03;

TCNT0=0x30;

// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Output Compare
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;

// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: 125,000 kHz
// Mode: Pulse Width Modulation
// OC2 output: Inverted PWM
TCCR2=0x00;
ASSR=0x00;
TCNT2=0x80;
OCR2=0x40;

// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
GIMSK=0x00;
MCUCR=0x00;

// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x41;

// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;

// LCD module initialization
lcd_init(16);

// Global enable interrupts
#asm("sei")
Play = 1;
lcd_init(16);
while (1)
      {
       unsigned char index;
       unsigned int lang; 

         if(Taste1)  { Song++; index = 0; Play = 1; delay_ms(200);};
         if(Taste2)  TCCR0 = 0x02; // one octave higher (double Timer frequency)
                else TCCR0 = 0x03; // Standart octave
         if(Taste3)  Speed++; 
         if(Taste4)  if(Speed > 1) Speed--;  
         if(Taste5)  { Play = 1;};
 
       if(!Play) index = 0;
       // prepare the display
       lcd_clear();
       lcd_gotoxy(2,1); 
       
       switch(Song)
        {
         case 0:
               // end of Song?
               if(index >= WARS_LAENGE) { Play = 0;};
               // set the frequency
               T1Reload = WarsSong[index][0]; 
               // duration of this tone
               lang =     WarsSong[index][1] * Speed;
               lcd_putsf("Star Wars");
               break; 
         case 1:
               if(index >= AXEL_LAENGE) { Play = 0;};
               T1Reload = AxelSong[index][0];
               lang =     AxelSong[index][1] * Speed;
               lcd_putsf("Axel F");
               break; 
         case 2:
               if(index >= HAYDN_LAENGE) { Play = 0;};
               T1Reload = HaydnSong[index][0];
               lang =     HaydnSong[index][1] * Speed;
               lcd_putsf("Haydn");
               break; 
         case 3:
               if(index >= VOY_LAENGE) { Play = 0;};
               T1Reload = VoySong[index][0];
               lang =     VoySong[index][1] * Speed;
               lcd_putsf("Voyager");
               break; 
         case 4:
               if(index >= BOND_LAENGE) { Play = 0;};
               T1Reload = BondSong[index][0];
               lang =     BondSong[index][1] * Speed;
               lcd_putsf("James Bond");
               break; 
         case 5:
               if(index >= BABY_LAENGE) { Play = 0;};
               T1Reload = BabySong[index][0];
               lang =     BabySong[index][1] * Speed;
               lcd_putsf("Baby Girl");
               break; 
         default: Song = 0;
               break; 
        }       
       
       // Set '*' 
       lcd_gotoxy(T1Reload / 12,0); 
       lcd_putsf("*");

       // show index
       sprintf(txt,"%2d",index);
       lcd_gotoxy(13,1); 
       lcd_puts(txt);
       
       // wait for the duration of this tone
       for(lang;lang;lang--) 
        {
         delay_ms(25);
        } 

       // next tone
       index++;
       
       // make a pause between the tones
       T1Reload = Silence; 
       delay_ms(20);
      };
}