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include/AVR/timerscfg.h
author Robert Lehmann <robert.lehmann@sitec-systems.de>
Tue, 28 Jul 2015 16:36:55 +0200
changeset 793 72e9e1064432
parent 375 03fb0bfccc1f
permissions -rw-r--r--
timers_unix: Fix termination problem of WaitReceiveTaskEnd

The function pthread_kill sends the Signal thread and to the own process.
If you use this construct than the application which calls uses the
canfestival api will terminate at the call of canClose. To avoid that
use pthread_cancel instead of pthread_kill. To use the pthread_cancel call
you need to set the cancel ability in the thread function. That means
you need to call pthread_setcancelstate and pthread_setcanceltype.
For the termination of the thread at any time it is important to set the
cancel type to PTHREAD_CANCEL_ASYNCHRONOUS. 
/*
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
canfestival