diff -r b74f7ec412fc -r 03fb0bfccc1f include/AVR/timerscfg.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/include/AVR/timerscfg.h Thu Jan 31 15:20:59 2008 +0100 @@ -0,0 +1,43 @@ +/* +This file is part of CanFestival, a library implementing CanOpen Stack. + +Copyright (C): Edouard TISSERANT and Francis DUPIN +AVR Port: Andreas GLAUSER and Peter CHRISTEN + +See COPYING file for copyrights details. + +This library is free software; you can redistribute it and/or +modify it under the terms of the GNU Lesser General Public +License as published by the Free Software Foundation; either +version 2.1 of the License, or (at your option) any later version. + +This library 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 +Lesser General Public License for more details. + +You should have received a copy of the GNU Lesser General Public +License along with this library; if not, write to the Free Software +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#ifndef __TIMERSCFG_H__ +#define __TIMERSCFG_H__ + +// Whatever your microcontroller, the timer wont work if +// TIMEVAL is not at least on 32 bits +#define TIMEVAL UNS32 + +// The timer of the AVR counts from 0000 to 0xFFFF in CTC mode (it can be +// shortened setting OCR3A eg. to get 2ms instead of 2.048ms) +#define TIMEVAL_MAX 0xFFFF + +// The timer is incrementing every 4 us. +//#define MS_TO_TIMEVAL(ms) (ms * 250) +//#define US_TO_TIMEVAL(us) (us>>2) + +// The timer is incrementing every 8 us. +#define MS_TO_TIMEVAL(ms) ((ms) * 125) +#define US_TO_TIMEVAL(us) ((us)>>3) + +#endif