1 /*

     2 This file is part of CanFestival, a library implementing CanOpen Stack.

     3 

     4 Copyright (C): Edouard TISSERANT and Francis DUPIN

     5 AVR Port: Andreas GLAUSER and Peter CHRISTEN

     6 

     7 See COPYING file for copyrights details.

     8 

     9 This library is free software; you can redistribute it and/or

    10 modify it under the terms of the GNU Lesser General Public

    11 License as published by the Free Software Foundation; either

    12 version 2.1 of the License, or (at your option) any later version.

    13 

    14 This library is distributed in the hope that it will be useful,

    15 but WITHOUT ANY WARRANTY; without even the implied warranty of

    16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    17 Lesser General Public License for more details.

    18 

    19 You should have received a copy of the GNU Lesser General Public

    20 License along with this library; if not, write to the Free Software

    21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    22 */

    23 /******************************************************************************

    24 MCU ports and Bits

    25 Makros for access on hardware

    26 ******************************************************************************/

    27 

    28 #ifndef _HARDWARE_INCLUDED

    29 #define _HARDWARE_INCLUDED

    30 

    31 /******************************************************************************

    32 Makros for bit access on the ports and registers

    33 ******************************************************************************/

    34 // Macros for set and clear bits in I/O registers

    35 #define setbit(address,bit) ((address) |= (1<<(bit)))

    36 #define clearbit(address,bit) ((address) &= ~(1<<(bit)))

    37 #define togglebit(address,bit) ((address) ^= (1<<(bit)))

    38 

    39 // Macro for testing of a single bit in an I/O location

    40 #define checkbit(address,bit) ((address) & (1<<(bit)))

    41 

    42 /************************** Hardware Makros **********************************/

    43 

    44 // Read the inputs

    45 #define get_inputs()		(~PINA)

    46 #define read_bcd()		(~PINC & 0x0F)

    47 // Write the outputs

    48 #define set_outputs(val)	PORTB = ~(val)

    49 

    50 #endif	// _HARDWARE_INCLUDED

    51 

    52