main.c

本人用AVR mega32写的一个关于输出32路PWM的程序

#define EXT_MAIN_GLOBALS
#include "includes.h" 

/************************************************************
 Function Name:  T2Init
 Function:       Timer0 initial
 Paramenter:     None               
 Return value:   None                     
 Author:         Chen yuan zhen May.30.2008 
*************************************************************/
void main(void) 
{  
    SP =0x04FF;  	
	SET_Y_LED;
	SystemInitial( );
    DownLoadDispose( );
	

    
    _delay_us(10);
    //HStartTime=EEPROM_read(HSTIME_AD);
	//LStartTime=EEPROM_read(LSTIME_AD);
	GentleStartTime = 30;                 //(HStartTime*256+LStartTime)/8;         //31


    T1Start( );                          //启动
	_delay_ms(30);
	
	
	START_FLAG=0;
	
	

	    while(!START_FLAG)
		{
    	  	if(PwmStepCounter>PwmPulse[TrueStepCount])               //最开始时应该设为0
      	  	{
	        	PORTA=PwmStepBuffer0[TrueStepCount]  & DDRA;
		    	PORTC=PwmStepBuffer7[TrueStepCount]  & DDRC;
	    		PORTD=PwmStepBuffer15[TrueStepCount] & DDRD;
		    	PORTF=PwmStepBuffer23[TrueStepCount] & DDRF;
            	TrueStepCount++;
     		}
		}
    	while(1)
		{

      		if(PwmStepCounter>PwmPulse[TrueStepCount])               //最开始时应该设为0
        	{
	        	PORTA=PwmStepBuffer0[TrueStepCount];
		    	PORTC=PwmStepBuffer7[TrueStepCount];
	    		PORTD=PwmStepBuffer15[TrueStepCount];
		    	PORTF=PwmStepBuffer23[TrueStepCount];
            	TrueStepCount++;
     		}
		}
	
}