examples/AVR/Slave/ds401.h
author fbeaulier
Mon, 29 Aug 2011 17:44:49 +0200
changeset 666 9febdd6fdc71
parent 413 57c7a451c671
child 675 e5c5101c4f0b
permissions -rw-r--r--
patch from Stefan Kratochwil <entwicklung@inovel.de> : canfestival-3-fm3_698.patch
Bug:
If an object dictionary entry was requested whose size exceeds
SDO_MAX_LENGTH_TRANSFERT, the memcpy() call at line 139 of objacces.c overwrites
the memory after *pDestData which causes stack corruption.
-> Bugfix:
The bug was corrected by size checking the requested data. An 'Out of
memory' error message will be generated if the requested data exceeds
SDO_MAX_LENGTH_TRANSFERT.

Additional changes:
Added dynamic buffer allocation for the SDO transfer. This feature can be used
if SDO_DYNAMIC_BUFFER_ALLOCATION is defined in config.h. The size of the
dynamically allocated buffer is controlled with
SDO_DYNAMIC_BUFFER_ALLOCATION_SIZE.
-> Note:
This change removes the detection of OD_LENGTH_DATA_INVALID errors!
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/*
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This file is part of CanFestival, a library implementing CanOpen Stack.
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Copyright (C): Andreas GLAUSER
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See COPYING file for copyrights details.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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*/
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// DS 401 Digital IO handling according DS 401 V2.1 "Device Profile for Generic I/O Modules"
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#ifndef __DS_401_h__
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#define __DS_401_h__
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// Includes for the Canfestival
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#include "canfestival.h"
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#include "timer.h"
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#include "objdict.h"
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unsigned char digital_input_handler(CO_Data* d, unsigned char *newInput, unsigned char size);
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unsigned char digital_output_handler(CO_Data* d, unsigned char *newOuput, unsigned char size);
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unsigned char analog_input_handler(CO_Data* d, unsigned int *newInput, unsigned char size);
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unsigned char analog_output_handler(CO_Data* d, unsigned int *newOutput, unsigned char size);
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#endif //__DS_401_h__