make_usec_table.c

来自「This program is distributed in the hope 」· C语言 代码 · 共 71 行

/*----------------------------------------------------------------------------*\
|                                                                              |
| Copyright (C) 2003,  James A. Cureington                                     |
|                      tonycu * users_sourceforge_net                          |
|                                                                              |
| This program is free software; you can redistribute it and/or                |
| modify it under the terms of the GNU General Public License                  |
| as published by the Free Software Foundation; either version 2               |
| of the License, or any later version.                                        |
|                                                                              |
| This program is distributed in the hope that it will be useful,              |
| but WITHOUT ANY WARRANTY; without even the implied warranty of               |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                |
| GNU General Public License for more details.                                 |
|                                                                              |
| You should have received a copy of the GNU General Public License            |
| along with this program; if not, write to the Free Software                  |
| Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                    |
|                                                                              |
|                                                                              |
| Tony Cureington                                                              |
| December 14, 2002                                                            |
|                                                                              |
| This file is associated with the ezusb2131 Linux downloader project. The     |
| project can be found at http://ezusb2131.sourceforge.net.                    |
|                                                                              |
|                                                                              |
\*----------------------------------------------------------------------------*/

/*
 * gcc make_usec_table.c -o make_usec_table
 */


/*******************************************************************************
 *
 * $Id: make_usec_table.c,v 1.1 2003/02/21 06:50:35 tonycu Exp $
 *
 ******************************************************************************/



#include <stdio.h>
/* the defines below were found by hand (trial and error)... you can
 * hack the usec table and put 4520 in location zero and see if it goes to 
 * 90 degrees, also put 760 in location one and see if it goes to -90 degrees.
 * this is how i did it since the values I found on the web did not work
 * correctly... 
 */
#define NUM_STOPS		   270
#define CENTER_USECS		2560
#define MAX_USECS			4520
#define MIN_USECS			760

main()
{
	int i;

	printf("{\n");
	for (i=0; i<NUM_STOPS-1; i++)
	{
		printf("%5d, ", 
				 (i+1)*((MAX_USECS-CENTER_USECS)/NUM_STOPS));
		if ((i+1)%10==0) {
			printf("\n");
		}
	}
	printf("%5d ", MAX_USECS-CENTER_USECS);
	printf("};\n");
}