|
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
/**
* @file ARM/AT91SAM7/vectors.s
* @brief Interrupt vectors for the AT91SAM7 family.
*
* @defgroup ARM_AT91SAM7_VECTORS AT91SAM7 Interrupt Vectors
* @ingroup ARM_SPECIFIC
* @details Interrupt vectors for the AT91SAM7 family.
* @{
*/
#if defined(__DOXYGEN__)
/**
* @brief Unhandled exceptions handler.
* @details Any undefined exception vector points to this function by default.
* This function simply stops the system into an infinite loop.
*
* @notapi
*/
void _unhandled_exception(void) {}
#endif
#if !defined(__DOXYGEN__)
.section vectors
.code 32
.balign 4
/*
* System entry points.
*/
_start:
ldr pc, _reset
ldr pc, _undefined
ldr pc, _swi
ldr pc, _prefetch
ldr pc, _abort
nop
ldr pc, [pc,#-0xF20] /* AIC - AIC_IVR */
ldr pc, [pc,#-0xF20] /* AIC - AIC_FVR */
_reset:
.word ResetHandler /* In crt0.s */
_undefined:
.word UndHandler
_swi:
.word SwiHandler
_prefetch:
.word PrefetchHandler
_abort:
.word AbortHandler
.word 0
.word 0
.word 0
.text
.code 32
.balign 4
/*
* Default exceptions handlers. The handlers are declared weak in order to be
* replaced by the real handling code. Everything is defaulted to an infinite
* loop.
*/
.weak UndHandler
UndHandler:
.weak SwiHandler
SwiHandler:
.weak PrefetchHandler
PrefetchHandler:
.weak AbortHandler
AbortHandler:
.weak FiqHandler
FiqHandler:
.global _unhandled_exception
_unhandled_exception:
b _unhandled_exception
#endif
/** @} */
|
