begriffs open source - cmsis-freertos/blob - Demo/CORTEX_LM3S811_KEIL/startup

1 ; <<< Use Configuration Wizard in Context Menu >>>

2 ;******************************************************************************

3 ;

4 ; startup_rvmdk.S - Startup code for Stellaris.

5 ;

7 ;

8 ; Software License Agreement

9 ;

10 ; Luminary Micro, Inc. (LMI) is supplying this software for use solely and

11 ; exclusively on LMI's Stellaris Family of microcontroller products.

12 ;

13 ; The software is owned by LMI and/or its suppliers, and is protected under

14 ; applicable copyright laws. All rights are reserved. Any use in violation of

15 ; the foregoing restrictions may subject the user to criminal sanctions under

16 ; applicable laws, as well as to civil liability for the breach of the terms

17 ; and conditions of this license.

18 ;

19 ; THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED

20 ; OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF

21 ; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.

22 ; LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR

23 ; CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

24 ;

25 ; This is part of revision 816 of the Stellaris Driver Library.

26 ;

27 ;******************************************************************************

28

29 ;******************************************************************************

30 ;

31 ; <h> Stack Configuration

32 ; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>

33 ; </h>

34 ;

35 ;******************************************************************************

36 Stack EQU 0x00000100

37

38 ;******************************************************************************

39 ;

40 ; <h> Heap Configuration

41 ; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>

42 ; </h>

43 ;

44 ;******************************************************************************

45 Heap EQU 0x00000000

46

47 ;******************************************************************************

48 ;

49 ; Allocate space for the stack.

50 ;

51 ;******************************************************************************

52 AREA STACK, NOINIT, READWRITE, ALIGN=3

53 StackMem

54 SPACE Stack

55

56 ;******************************************************************************

57 ;

58 ; Allocate space for the heap.

59 ;

60 ;******************************************************************************

61 AREA HEAP, NOINIT, READWRITE, ALIGN=3

62 HeapMem

63 SPACE Heap

64

65 ;******************************************************************************

66 ;

67 ; Indicate that the code in this file preserves 8-byte alignment of the stack.

68 ;

69 ;******************************************************************************

70 PRESERVE8

71

72 ;******************************************************************************

73 ;

74 ; Place code into the reset code section.

75 ;

76 ;******************************************************************************

77 AREA RESET, CODE, READONLY

78 THUMB

79

80 ;******************************************************************************

81 ;

82 ; The vector table.

83 ;

84 ;******************************************************************************

85 EXPORT __Vectors

86 __Vectors

87 DCD StackMem + Stack ; Top of Stack

88 DCD Reset_Handler ; Reset Handler

89 DCD NmiSR ; NMI Handler

90 DCD FaultISR ; Hard Fault Handler

91 DCD IntDefaultHandler ; MPU Fault Handler

92 DCD IntDefaultHandler ; Bus Fault Handler

93 DCD IntDefaultHandler ; Usage Fault Handler

94 DCD 0 ; Reserved

95 DCD 0 ; Reserved

96 DCD 0 ; Reserved

97 DCD 0 ; Reserved

98 DCD vPortSVCHandler ; SVCall Handler

99 DCD IntDefaultHandler ; Debug Monitor Handler

100 DCD 0 ; Reserved

101 DCD xPortPendSVHandler ; PendSV Handler

102 DCD xPortSysTickHandler ; SysTick Handler

103 DCD IntDefaultHandler ; GPIO Port A

104 DCD IntDefaultHandler ; GPIO Port B

105 DCD vGPIO_ISR ; GPIO Port C

106 DCD IntDefaultHandler ; GPIO Port D

107 DCD IntDefaultHandler ; GPIO Port E

108 DCD vUART_ISR ; UART0

109 DCD IntDefaultHandler ; UART1

110 DCD IntDefaultHandler ; SSI

111 DCD IntDefaultHandler ; I2C

112 DCD IntDefaultHandler ; PWM Fault

113 DCD IntDefaultHandler ; PWM Generator 0

114 DCD IntDefaultHandler ; PWM Generator 1

115 DCD IntDefaultHandler ; PWM Generator 2

116 DCD IntDefaultHandler ; Quadrature Encoder

117 DCD IntDefaultHandler ; ADC Sequence 0

118 DCD IntDefaultHandler ; ADC Sequence 1

119 DCD IntDefaultHandler ; ADC Sequence 2

120 DCD IntDefaultHandler ; ADC Sequence 3

121 DCD IntDefaultHandler ; Watchdog

122 DCD IntDefaultHandler ; Timer 0A

123 DCD IntDefaultHandler ; Timer 0B

124 DCD IntDefaultHandler ; Timer 1A

125 DCD IntDefaultHandler ; Timer 1B

126 DCD IntDefaultHandler ; Timer 2A

127 DCD IntDefaultHandler ; Timer 2B

128 DCD IntDefaultHandler ; Comp 0

129 DCD IntDefaultHandler ; Comp 1

130 DCD IntDefaultHandler ; Comp 2

131 DCD IntDefaultHandler ; System Control

132 DCD IntDefaultHandler ; Flash Control

133

134 ;******************************************************************************

135 ;

136 ; This is the code that gets called when the processor first starts execution

137 ; following a reset event.

138 ;

139 ;******************************************************************************

140 EXPORT Reset_Handler

141 Reset_Handler

142 ;

143 ; Call __main() in the C library, which will call the application

144 ; supplied main().

145 ;

146 IMPORT __main

147 IMPORT vGPIO_ISR

148 IMPORT vUART_ISR

149 IMPORT xPortPendSVHandler

150 IMPORT xPortSysTickHandler

151 IMPORT vPortSVCHandler

152

153 LDR R0, =__main

154 BX R0

155

156 ;******************************************************************************

157 ;

158 ; This is the code that gets called when the processor receives a NMI. This

159 ; simply enters an infinite loop, preserving the system state for examination

160 ; by a debugger.

161 ;

162 ;******************************************************************************

163 NmiSR

164 B NmiSR

165

166 ;******************************************************************************

167 ;

168 ; This is the code that gets called when the processor receives a fault

169 ; interrupt. This simply enters an infinite loop, preserving the system state

170 ; for examination by a debugger.

171 ;

172 ;******************************************************************************

173 FaultISR

174 B FaultISR

175

176 ;******************************************************************************

177 ;

178 ; This is the code that gets called when the processor receives an unexpected

179 ; interrupt. This simply enters an infinite loop, preserving the system state

180 ; for examination by a debugger.

181 ;

182 ;******************************************************************************

183 IntDefaultHandler

184 B IntDefaultHandler

185

186 ;******************************************************************************

187 ;

188 ; Make sure the end of this section is aligned.

189 ;

190 ;******************************************************************************

191 ALIGN

192

193 ;******************************************************************************

194 ;

195 ; Some code in the normal code section for initializing the heap and stack.

196 ;

197 ;******************************************************************************

198 AREA |.text|, CODE, READONLY

199

200 ;******************************************************************************

201 ;

202 ; The function expected of the C library startup code for defining the stack

203 ; and heap memory locations.

204 ;

205 ;******************************************************************************

206 IMPORT __use_two_region_memory

207 EXPORT __user_initial_stackheap

208 __user_initial_stackheap

209 LDR R0, =HeapMem

210 LDR R1, =(StackMem + Stack)

211 LDR R2, =(HeapMem + Heap)

212 LDR R3, =StackMem

213 BX LR

214

215 ;******************************************************************************

216 ;

217 ; Make sure the end of this section is aligned.

218 ;

219 ;******************************************************************************

220 ALIGN

221

222 ; Note:

223 ; Using READWRITE places Section .RTOSHeap in Region ER_RW.

224 ; Using NOINIT places Section .RTOSHeap in Region ER_ZI,which means

225 ; "ZEROINITIALIZE" (sic), and which is the last region in memory. Then

226 ; we need to make this section the last section, which is somewhat tricky,

227 ; because we cannot use the sectionname, but need to use a defined symbol:

228 ; Linker option: "--last xHeap"

229

230 EXPORT xHeap

231

232 AREA RTOSHeap, DATA, NOINIT

233 xHeap

234

235 ;******************************************************************************

236 ;

237 ; Tell the assembler that we're done.

238 ;

239 ;******************************************************************************

240 END