music.c

本人用AVR mega32写的一个关于输出32路PWM的程序

#define   EXT_MUSIC_GLOBALS
#include "includes.h" 


void MusicControl(void)
{
    if(MusicCounter>2000)
	{
	    MUSIC_START=0;
        Interval = EEPROM_read(INTERVAL_AD);
		MusicCounter=0;
	}
	else if(!IS_MUSIC_INPUT)
	{
	    MusicCounter++;
	}
	else
	{
        if((MusicCounter>13)&&(MusicCounter<21))          //17
		{
		    Interval=12;
        }
		else if((MusicCounter>34)&&(MusicCounter<50))     //42
		{
		    Interval=25;
		}
		else if((MusicCounter>80)&&(MusicCounter<110))     //92
		{
		    Interval=50;
		}
		else if((MusicCounter>170)&&(MusicCounter<220))   //192
		{
		    Interval=100;
		}
		MusicCounter=0;
 
	}
}