| 0,0 → 1,78 |
|---|
| /* |
| Copyright (C) 2004 John Orlando |
| |
| AVRcam: a small real-time image processing engine. |
| |
| 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 (at your option) 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| |
| For more information on the AVRcam, please contact: |
| |
| john@jrobot.net |
| |
| or go to www.jrobot.net for more details regarding the system. |
| */ |
| /*********************************************************** |
| Module Name: Utility.c |
| Module Date: 04/13/2004 |
| Module Auth: John Orlando |
| |
| Description: This module provides a basic set of |
| general purpose utilities that can be used by any |
| module needing them. |
| |
| Revision History: |
| Date Rel Ver. Notes |
| 4/10/2004 0.1 Module created |
| 6/30/2004 1.0 Initial release for Circuit Cellar |
| contest. |
| ***********************************************************/ |
| |
| /* Includes */ |
| #include "CommonDefs.h" |
| |
| /* Local Variables */ |
| |
| /* Local Structures and Typedefs */ |
| |
| /* Extern Variables */ |
| |
| /* Definitions */ |
| |
| /*********************************************************** |
| Function Name: Utility_delay |
| Function Description: This function provides a busy-wait |
| delay for a specified number of milliseconds. |
| Inputs: numMs - the number of milliseconds to delay |
| Outputs: none |
| NOTES: The delay_loop_1 and delay_loop_2 functions found |
| in avr/delay.h provide accurate 3 and 4 cycle delay loops |
| if needed...this isn't really a millisecond, so DON'T |
| depend on it for exact timing... |
| ***********************************************************/ |
| void Utility_delay(unsigned short numMs) |
| { |
| volatile unsigned short i=0,j=0; |
| #ifndef SIMULATION |
| for (i=0; i<numMs; i++) |
| { |
| for (j=0; j<1000; j++) |
| { |
| asm volatile("nop"::); |
| } |
| } |
| #endif |
| } |
| |
| |