521
|
1 |
/*
|
|
2 |
This file is part of CanFestival, a library implementing CanOpen Stack.
|
|
3 |
|
|
4 |
Copyright (C): Edouard TISSERANT and Francis DUPIN
|
|
5 |
ARM Port: 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 |
#ifndef _IO_MACRO
|
|
25 |
#define _IO_MACRO
|
|
26 |
|
|
27 |
// Macros for set and clear bits in I/O registers
|
|
28 |
#define setbit(address,bit) (address |= (1<<bit))
|
|
29 |
#define clearbit(address,bit) (address &= ~(1<<bit))
|
|
30 |
#define togglebit(address,bit) (address ^= (1<<bit))
|
|
31 |
|
|
32 |
// Macro for testing of a single bit in an I/O location
|
|
33 |
#define checkbit(address,bit) (address & (1<<bit))
|
|
34 |
|
|
35 |
#endif
|