2 * Copyright Droids Corporation, Microb Technology, Eirbot (2005)
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Revision : $Id: scheduler_config.h,v 1.1.2.1 2007-12-06 08:58:00 zer0 Exp $
22 #ifndef _SCHEDULER_CONFIG_H_
23 #define _SCHEDULER_CONFIG_H_
25 #define _SCHEDULER_CONFIG_VERSION_ 4
27 /** maximum number of allocated events */
28 #define SCHEDULER_NB_MAX_EVENT 5
31 /* define it only if CONFIG_MODULE_SCHEDULER_USE_TIMERS is enabled. In
32 this case, precaler is defined in timers_config.h in your project
34 #ifdef CONFIG_MODULE_SCHEDULER_USE_TIMERS
35 /** the num of the timer to use for the scheduler */
36 #define SCHEDULER_TIMER_NUM 0
38 /* or set the prescaler manually (in this case, you use must TIMER0,
39 and the prescaler must be a correct value regarding the AVR device
40 you are using (look in include/aversive/parts.h). Obviously, the
41 values of SCHEDULER_CK and SCHEDULER_CLOCK_PRESCALER must also be
42 coherent (TIMER0_PRESCALER_DIV_VALUE and VALUE) */
43 #endif /* CONFIG_MODULE_SCHEDULER_USE_TIMERS */
46 #ifdef CONFIG_MODULE_SCHEDULER_TIMER0
47 /* The 2 values below MUST be coherent:
48 * if SCHEDULER_CK = TIMER0_PRESCALER_DIV_x, then
49 * you must have SCHEDULER_CLOCK_PRESCALER = x too !!! */
50 #define SCHEDULER_CK TIMER0_PRESCALER_DIV_8
51 #define SCHEDULER_CLOCK_PRESCALER 8
53 #endif /* CONFIG_MODULE_SCHEDULER_TIMER0 */
55 /* last case, the scheduler is called manually. The user has to
56 define the period here */
57 #ifdef CONFIG_MODULE_SCHEDULER_MANUAL
59 #define SCHEDULER_UNIT_FLOAT 1000.0
60 #define SCHEDULER_UNIT 1000UL
62 #endif /* CONFIG_MODULE_SCHEDULER_MANUAL */
64 /** number of allowed imbricated scheduler interrupts. The maximum
65 * should be SCHEDULER_NB_MAX_EVENT since we never need to imbricate
66 * more than once per event. If it is less, it can avoid to browse the
67 * event table, events are delayed (we loose precision) but it takes
69 #define SCHEDULER_NB_STACKING_MAX SCHEDULER_NB_MAX_EVENT
71 /** define it for debug infos (not recommended, because very slow on
72 * an AVR, it uses printf in an interrupt). It can be useful if
73 * prescaler is very high, making the timer interrupt period very
74 * long in comparison to printf() */
75 /* #define SCHEDULER_DEBUG */
77 #endif // _SCHEDULER_CONFIG_H_