stepmotor_main.c

s3c2410平台 步进电机的demo

/*
 * stepmotor_main.c
 *
 * S3C2410-S STEPMOTOR
 * derived from s3c2410_exio.c
 *
 * Author: wang bin <[e-mail]>	
 * Date  : $Date: 2005/07/25 $ 
 *
 * $Revision: 1.0.0.1 $
 *						
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 */

#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <sys/ioctl.h>

#define STEPMOTOR_IOCTRL_PHASE 		0x13

static int step_fd = -1;
char *STEP_DEV="/dev/exio/0raw";

/****************************************************************      
  A,	AB,	B,	BC,	C	CD,	D,	DA 
****************************************************************/
//char stepdata[]={0x10,0x30,0x20,0x60,0x40,0xc0,0x80,0x90};
char stepdata[]={0x90,0x80,0xc0,0x40,0x60,0x20,0x30,0x10};
void Delay(int t)
{
	int i;
	for(;t>0;t--)
		for(i=0;i<400;i++);
}

/****************************************************************/
int main(int argc, char **argv)
{
	int i,j = 0;
	
	if((step_fd=open(STEP_DEV, O_WRONLY))<0){
		printf("Error opening /dev/exio/0raw device\n");
		return 1;
	}
	printf("/dev/exio/0raw device opened\n");
	for (j=0;j<4;j++) {
		for (i=0; i<sizeof(stepdata)/sizeof(stepdata[0]); i++) {
			ioctl(step_fd, STEPMOTOR_IOCTRL_PHASE, stepdata[i]);			}
		Delay(10);
		for(i=0;i<sizeof(stepdata)/sizeof(stepdata[0]);i++){
			ioctl(step_fd,STEPMOTOR_IOCTRL_PHASE,stepdata[i]);			}
		printf("Delay(100)\n");
		Delay(100);
	}
	
	close(step_fd);	
	printf("Step motor start running!\n");
	return 0;
}