testing/examples/ledtest-imx27ads/test.c

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Alan Carvalho de Assis                                  *
   3  *   acassis@gmail.com                                                     *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  19  ***************************************************************************/
  20
  21 void delay()
  22 {
  23         int i;
  24         for (i = 0; i < 500000; i++);
  25 }
  26
  27 /* MAIN ARM FUNTION */
  28 int main (void)
  29 {
  30         int i;
  31         volatile unsigned char *ledoff = ((volatile unsigned char *)0xD4000008);
  32         volatile unsigned char *ledon = ((volatile unsigned char *)0xD400000C);
  33
  34         for (i = 0; i < 10000; i++)
  35         {
  36                 *ledon = 0x30;
  37                 delay();
  38                 *ledoff = 0x30;
  39                 delay();
  40         } /* FOR */
  41
  42 } /* MAIN */
  43
  44 __gccmain()
  45 {
  46 } /* GCCMAIN */
  47
  48
  49 void exit(int exit_code)
  50 {
  51   while (1);
  52 } /* EXIT */
  53
  54
  55 atexit()
  56 {
  57   while (1);
  58 } /* ATEXIT */
  59
  60