motor.c

ADUC845控制电机正转五秒、反转五秒

												 										   //====================================================================
//
// Author        : ADI - Apps
//
// Date          : 17 October 2003
//
// File          : Tim2_AR.c
//
// Hardware      : ADuC845
//
// Description   : Flashes LED on P3.4 every approx 20Hz
//____________________________________________________________________

#include <stdio.h>
#include <ADuC845.h>


sbit half_or_full = P0^0;
sbit L297_clock = P0^1;
sbit direction = P0^2;
sbit L297_enable = P0^3;

void interrupt_0 () interrupt 	1

{		 
		TL0 = 0xf0;
	    TH0 = 0xfb;
        TF0 = 0;
		L297_clock=L297_clock^1;

}


void TIC_int () interrupt 10
{
    direction=direction^1;
}

void delay(int length)
{
while (length >=0)
    length--;
}

void main (void)
{
    
    ET0 = 1;
	TMOD = 0x01;
   	TL0 = 0xf0;
	TH0 = 0xfb;
     EA = 1;
	TR0 = 1;



	IEIP2 = 0x04;   	//Enable TIC interrupt
	EA = 1;         	//Enable global interrupts
	TIMECON = 0xD0; 	//Count in seconds
	INTVAL =  0x05; 	//Count duration (5 second delay between temperature readings)
	delay(10000);		//Delay to allow TIC registers be written
		       		//Since TIC operates from 32.768kHz time must be given
				//to ensure the TIC registers are written to correctly.
	
    TIMECON	= 0xD3;         //Start counting, enable INTVAL counter & TIC counter





	 half_or_full=0;
	 direction=0;
	  L297_enable=1;




	while(1);
}