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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
; <<< Use Configuration Wizard in Context Menu >>>
;******************************************************************************
;
; startup_rvmdk.S - Startup code for Stellaris.
;
; Copyright (c) 2006 Luminary Micro, Inc. All rights reserved.
;
; Software License Agreement
;
; Luminary Micro, Inc. (LMI) is supplying this software for use solely and
; exclusively on LMI's Stellaris Family of microcontroller products.
;
; The software is owned by LMI and/or its suppliers, and is protected under
; applicable copyright laws. All rights are reserved. Any use in violation of
; the foregoing restrictions may subject the user to criminal sanctions under
; applicable laws, as well as to civil liability for the breach of the terms
; and conditions of this license.
;
; THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
; OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
; LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
; CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
;
; This is part of revision 816 of the Stellaris Driver Library.
;
;******************************************************************************
;******************************************************************************
;
; <h> Stack Configuration
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
;
;******************************************************************************
Stack EQU 0x00000100
;******************************************************************************
;
; <h> Heap Configuration
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
;
;******************************************************************************
Heap EQU 0x00000000
;******************************************************************************
;
; Allocate space for the stack.
;
;******************************************************************************
AREA STACK, NOINIT, READWRITE, ALIGN=3
StackMem
SPACE Stack
;******************************************************************************
;
; Allocate space for the heap.
;
;******************************************************************************
AREA HEAP, NOINIT, READWRITE, ALIGN=3
HeapMem
SPACE Heap
;******************************************************************************
;
; Indicate that the code in this file preserves 8-byte alignment of the stack.
;
;******************************************************************************
PRESERVE8
;******************************************************************************
;
; Place code into the reset code section.
;
;******************************************************************************
AREA RESET, CODE, READONLY
THUMB
;******************************************************************************
;
; The vector table.
;
;******************************************************************************
EXPORT __Vectors
__Vectors
DCD StackMem + Stack ; Top of Stack
DCD Reset_Handler ; Reset Handler
DCD NmiSR ; NMI Handler
DCD FaultISR ; Hard Fault Handler
DCD IntDefaultHandler ; MPU Fault Handler
DCD IntDefaultHandler ; Bus Fault Handler
DCD IntDefaultHandler ; Usage Fault Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD vPortSVCHandler ; SVCall Handler
DCD IntDefaultHandler ; Debug Monitor Handler
DCD 0 ; Reserved
DCD xPortPendSVHandler ; PendSV Handler
DCD xPortSysTickHandler ; SysTick Handler
DCD IntDefaultHandler ; GPIO Port A
DCD IntDefaultHandler ; GPIO Port B
DCD vGPIO_ISR ; GPIO Port C
DCD IntDefaultHandler ; GPIO Port D
DCD IntDefaultHandler ; GPIO Port E
DCD vUART_ISR ; UART0
DCD IntDefaultHandler ; UART1
DCD IntDefaultHandler ; SSI
DCD IntDefaultHandler ; I2C
DCD IntDefaultHandler ; PWM Fault
DCD IntDefaultHandler ; PWM Generator 0
DCD IntDefaultHandler ; PWM Generator 1
DCD IntDefaultHandler ; PWM Generator 2
DCD IntDefaultHandler ; Quadrature Encoder
DCD IntDefaultHandler ; ADC Sequence 0
DCD IntDefaultHandler ; ADC Sequence 1
DCD IntDefaultHandler ; ADC Sequence 2
DCD IntDefaultHandler ; ADC Sequence 3
DCD IntDefaultHandler ; Watchdog
DCD IntDefaultHandler ; Timer 0A
DCD IntDefaultHandler ; Timer 0B
DCD IntDefaultHandler ; Timer 1A
DCD IntDefaultHandler ; Timer 1B
DCD IntDefaultHandler ; Timer 2A
DCD IntDefaultHandler ; Timer 2B
DCD IntDefaultHandler ; Comp 0
DCD IntDefaultHandler ; Comp 1
DCD IntDefaultHandler ; Comp 2
DCD IntDefaultHandler ; System Control
DCD IntDefaultHandler ; Flash Control
;******************************************************************************
;
; This is the code that gets called when the processor first starts execution
; following a reset event.
;
;******************************************************************************
EXPORT Reset_Handler
Reset_Handler
;
; Call __main() in the C library, which will call the application
; supplied main().
;
IMPORT __main
IMPORT vGPIO_ISR
IMPORT vUART_ISR
IMPORT xPortPendSVHandler
IMPORT xPortSysTickHandler
IMPORT vPortSVCHandler
LDR R0, =__main
BX R0
;******************************************************************************
;
; This is the code that gets called when the processor receives a NMI. This
; simply enters an infinite loop, preserving the system state for examination
; by a debugger.
;
;******************************************************************************
NmiSR
B NmiSR
;******************************************************************************
;
; This is the code that gets called when the processor receives a fault
; interrupt. This simply enters an infinite loop, preserving the system state
; for examination by a debugger.
;
;******************************************************************************
FaultISR
B FaultISR
;******************************************************************************
;
; This is the code that gets called when the processor receives an unexpected
; interrupt. This simply enters an infinite loop, preserving the system state
; for examination by a debugger.
;
;******************************************************************************
IntDefaultHandler
B IntDefaultHandler
;******************************************************************************
;
; Make sure the end of this section is aligned.
;
;******************************************************************************
ALIGN
;******************************************************************************
;
; Some code in the normal code section for initializing the heap and stack.
;
;******************************************************************************
AREA |.text|, CODE, READONLY
;******************************************************************************
;
; The function expected of the C library startup code for defining the stack
; and heap memory locations.
;
;******************************************************************************
IMPORT __use_two_region_memory
EXPORT __user_initial_stackheap
__user_initial_stackheap
LDR R0, =HeapMem
LDR R1, =(StackMem + Stack)
LDR R2, =(HeapMem + Heap)
LDR R3, =StackMem
BX LR
;******************************************************************************
;
; Make sure the end of this section is aligned.
;
;******************************************************************************
ALIGN
; Note:
; Using READWRITE places Section .RTOSHeap in Region ER_RW.
; Using NOINIT places Section .RTOSHeap in Region ER_ZI,which means
; "ZEROINITIALIZE" (sic), and which is the last region in memory. Then
; we need to make this section the last section, which is somewhat tricky,
; because we cannot use the sectionname, but need to use a defined symbol:
; Linker option: "--last xHeap"
EXPORT xHeap
AREA RTOSHeap, DATA, NOINIT
xHeap
;******************************************************************************
;
; Tell the assembler that we're done.
;
;******************************************************************************
END
|
