mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/cmsis/TARGET_Freescale/TARGET_KL25Z/TOOLCHAIN_GCC_CW_NEWLIB/startup_MKL25Z4.s@13:0645d8841f51, 2013-08-05 (annotated)

Committer:
bogdanm
Date:
Mon Aug 05 14:12:34 2013 +0300
Revision:
13:0645d8841f51
Update mbed sources to revision 64

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* File: startup_ARMCM0.S
bogdanm 13:0645d8841f51 2 * Purpose: startup file for Cortex-M0 devices. Should use with
bogdanm 13:0645d8841f51 3 * GCC for ARM Embedded Processors
bogdanm 13:0645d8841f51 4 * Version: V1.2
bogdanm 13:0645d8841f51 5 * Date: 15 Nov 2011
bogdanm 13:0645d8841f51 6 *
bogdanm 13:0645d8841f51 7 * Copyright (c) 2011, ARM Limited
bogdanm 13:0645d8841f51 8 * All rights reserved.
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Redistribution and use in source and binary forms, with or without
bogdanm 13:0645d8841f51 11 * modification, are permitted provided that the following conditions are met:
bogdanm 13:0645d8841f51 12 * Redistributions of source code must retain the above copyright
bogdanm 13:0645d8841f51 13 notice, this list of conditions and the following disclaimer.
bogdanm 13:0645d8841f51 14 * Redistributions in binary form must reproduce the above copyright
bogdanm 13:0645d8841f51 15 notice, this list of conditions and the following disclaimer in the
bogdanm 13:0645d8841f51 16 documentation and/or other materials provided with the distribution.
bogdanm 13:0645d8841f51 17 * Neither the name of the ARM Limited nor the
bogdanm 13:0645d8841f51 18 names of its contributors may be used to endorse or promote products
bogdanm 13:0645d8841f51 19 derived from this software without specific prior written permission.
bogdanm 13:0645d8841f51 20 *
bogdanm 13:0645d8841f51 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
bogdanm 13:0645d8841f51 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
bogdanm 13:0645d8841f51 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
bogdanm 13:0645d8841f51 24 * DISCLAIMED. IN NO EVENT SHALL ARM LIMITED BE LIABLE FOR ANY
bogdanm 13:0645d8841f51 25 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
bogdanm 13:0645d8841f51 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
bogdanm 13:0645d8841f51 27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
bogdanm 13:0645d8841f51 28 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
bogdanm 13:0645d8841f51 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
bogdanm 13:0645d8841f51 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bogdanm 13:0645d8841f51 31 */
bogdanm 13:0645d8841f51 32 .syntax unified
bogdanm 13:0645d8841f51 33 .arch armv6-m
bogdanm 13:0645d8841f51 34
bogdanm 13:0645d8841f51 35 /* Memory Model
bogdanm 13:0645d8841f51 36 The HEAP starts at the end of the DATA section and grows upward.
bogdanm 13:0645d8841f51 37
bogdanm 13:0645d8841f51 38 The STACK starts at the end of the RAM and grows downward.
bogdanm 13:0645d8841f51 39
bogdanm 13:0645d8841f51 40 The HEAP and stack STACK are only checked at compile time:
bogdanm 13:0645d8841f51 41 (DATA_SIZE + HEAP_SIZE + STACK_SIZE) < RAM_SIZE
bogdanm 13:0645d8841f51 42
bogdanm 13:0645d8841f51 43 This is just a check for the bare minimum for the Heap+Stack area before
bogdanm 13:0645d8841f51 44 aborting compilation, it is not the run time limit:
bogdanm 13:0645d8841f51 45 Heap_Size + Stack_Size = 0x80 + 0x80 = 0x100
bogdanm 13:0645d8841f51 46 */
bogdanm 13:0645d8841f51 47 .section .stack
bogdanm 13:0645d8841f51 48 .align 3
bogdanm 13:0645d8841f51 49 #ifdef __STACK_SIZE
bogdanm 13:0645d8841f51 50 .equ Stack_Size, __STACK_SIZE
bogdanm 13:0645d8841f51 51 #else
bogdanm 13:0645d8841f51 52 .equ Stack_Size, 0x80
bogdanm 13:0645d8841f51 53 #endif
bogdanm 13:0645d8841f51 54 .globl __StackTop
bogdanm 13:0645d8841f51 55 .globl __StackLimit
bogdanm 13:0645d8841f51 56 __StackLimit:
bogdanm 13:0645d8841f51 57 .space Stack_Size
bogdanm 13:0645d8841f51 58 .size __StackLimit, . - __StackLimit
bogdanm 13:0645d8841f51 59 __StackTop:
bogdanm 13:0645d8841f51 60 .size __StackTop, . - __StackTop
bogdanm 13:0645d8841f51 61
bogdanm 13:0645d8841f51 62 .section .heap
bogdanm 13:0645d8841f51 63 .align 3
bogdanm 13:0645d8841f51 64 #ifdef __HEAP_SIZE
bogdanm 13:0645d8841f51 65 .equ Heap_Size, __HEAP_SIZE
bogdanm 13:0645d8841f51 66 #else
bogdanm 13:0645d8841f51 67 .equ Heap_Size, 0x80
bogdanm 13:0645d8841f51 68 #endif
bogdanm 13:0645d8841f51 69 .globl __HeapBase
bogdanm 13:0645d8841f51 70 .globl __HeapLimit
bogdanm 13:0645d8841f51 71 __HeapBase:
bogdanm 13:0645d8841f51 72 .space Heap_Size
bogdanm 13:0645d8841f51 73 .size __HeapBase, . - __HeapBase
bogdanm 13:0645d8841f51 74 __HeapLimit:
bogdanm 13:0645d8841f51 75 .size __HeapLimit, . - __HeapLimit
bogdanm 13:0645d8841f51 76
bogdanm 13:0645d8841f51 77 .section .isr_vector
bogdanm 13:0645d8841f51 78 .align 2
bogdanm 13:0645d8841f51 79 .globl __isr_vector
bogdanm 13:0645d8841f51 80 __isr_vector:
bogdanm 13:0645d8841f51 81 .long __StackTop /* Top of Stack */
bogdanm 13:0645d8841f51 82 .long Reset_Handler /* Reset Handler */
bogdanm 13:0645d8841f51 83 .long NMI_Handler /* NMI Handler */
bogdanm 13:0645d8841f51 84 .long HardFault_Handler /* Hard Fault Handler */
bogdanm 13:0645d8841f51 85 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 86 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 87 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 88 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 89 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 90 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 91 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 92 .long SVC_Handler /* SVCall Handler */
bogdanm 13:0645d8841f51 93 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 94 .long 0 /* Reserved */
bogdanm 13:0645d8841f51 95 .long PendSV_Handler /* PendSV Handler */
bogdanm 13:0645d8841f51 96 .long SysTick_Handler /* SysTick Handler */
bogdanm 13:0645d8841f51 97
bogdanm 13:0645d8841f51 98 /* External interrupts */
bogdanm 13:0645d8841f51 99 .long DMA0_IRQHandler /* DMA channel 0 transfer complete interrupt */
bogdanm 13:0645d8841f51 100 .long DMA1_IRQHandler /* DMA channel 1 transfer complete interrupt */
bogdanm 13:0645d8841f51 101 .long DMA2_IRQHandler /* DMA channel 2 transfer complete interrupt */
bogdanm 13:0645d8841f51 102 .long DMA3_IRQHandler /* DMA channel 3 transfer complete interrupt */
bogdanm 13:0645d8841f51 103 .long Reserved20_IRQHandler /* Reserved interrupt 20 */
bogdanm 13:0645d8841f51 104 .long FTFA_IRQHandler /* FTFA interrupt */
bogdanm 13:0645d8841f51 105 .long LVD_LVW_IRQHandler /* Low Voltage Detect, Low Voltage Warning */
bogdanm 13:0645d8841f51 106 .long LLW_IRQHandler /* Low Leakage Wakeup */
bogdanm 13:0645d8841f51 107 .long I2C0_IRQHandler /* I2C0 interrupt */
bogdanm 13:0645d8841f51 108 .long I2C1_IRQHandler /* I2C0 interrupt 25 */
bogdanm 13:0645d8841f51 109 .long SPI0_IRQHandler /* SPI0 interrupt */
bogdanm 13:0645d8841f51 110 .long SPI1_IRQHandler /* SPI1 interrupt */
bogdanm 13:0645d8841f51 111 .long UART0_IRQHandler /* UART0 status/error interrupt */
bogdanm 13:0645d8841f51 112 .long UART1_IRQHandler /* UART1 status/error interrupt */
bogdanm 13:0645d8841f51 113 .long UART2_IRQHandler /* UART2 status/error interrupt */
bogdanm 13:0645d8841f51 114 .long ADC0_IRQHandler /* ADC0 interrupt */
bogdanm 13:0645d8841f51 115 .long CMP0_IRQHandler /* CMP0 interrupt */
bogdanm 13:0645d8841f51 116 .long TPM0_IRQHandler /* TPM0 fault, overflow and channels interrupt */
bogdanm 13:0645d8841f51 117 .long TPM1_IRQHandler /* TPM1 fault, overflow and channels interrupt */
bogdanm 13:0645d8841f51 118 .long TPM2_IRQHandler /* TPM2 fault, overflow and channels interrupt */
bogdanm 13:0645d8841f51 119 .long RTC_IRQHandler /* RTC interrupt */
bogdanm 13:0645d8841f51 120 .long RTC_Seconds_IRQHandler /* RTC seconds interrupt */
bogdanm 13:0645d8841f51 121 .long PIT_IRQHandler /* PIT timer interrupt */
bogdanm 13:0645d8841f51 122 .long Reserved39_IRQHandler /* Reserved interrupt 39 */
bogdanm 13:0645d8841f51 123 .long USB0_IRQHandler /* USB0 interrupt */
bogdanm 13:0645d8841f51 124 .long DAC0_IRQHandler /* DAC interrupt */
bogdanm 13:0645d8841f51 125 .long TSI0_IRQHandler /* TSI0 interrupt */
bogdanm 13:0645d8841f51 126 .long MCG_IRQHandler /* MCG interrupt */
bogdanm 13:0645d8841f51 127 .long LPTimer_IRQHandler /* LPTimer interrupt */
bogdanm 13:0645d8841f51 128 .long Reserved45_IRQHandler /* Reserved interrupt 45 */
bogdanm 13:0645d8841f51 129 .long PORTA_IRQHandler /* Port A interrupt */
bogdanm 13:0645d8841f51 130 .long PORTD_IRQHandler /* Port D interrupt */
bogdanm 13:0645d8841f51 131
bogdanm 13:0645d8841f51 132 .size __isr_vector, . - __isr_vector
bogdanm 13:0645d8841f51 133
bogdanm 13:0645d8841f51 134 .section .text.Reset_Handler
bogdanm 13:0645d8841f51 135 .thumb
bogdanm 13:0645d8841f51 136 .thumb_func
bogdanm 13:0645d8841f51 137 .align 2
bogdanm 13:0645d8841f51 138 .globl Reset_Handler
bogdanm 13:0645d8841f51 139 .type Reset_Handler, %function
bogdanm 13:0645d8841f51 140 Reset_Handler:
bogdanm 13:0645d8841f51 141 /* Loop to copy data from read only memory to RAM. The ranges
bogdanm 13:0645d8841f51 142 * of copy from/to are specified by following symbols evaluated in
bogdanm 13:0645d8841f51 143 * linker script.
bogdanm 13:0645d8841f51 144 * __etext: End of code section, i.e., begin of data sections to copy from.
bogdanm 13:0645d8841f51 145 * __data_start__/__data_end__: RAM address range that data should be
bogdanm 13:0645d8841f51 146 * copied to. Both must be aligned to 4 bytes boundary. */
bogdanm 13:0645d8841f51 147
bogdanm 13:0645d8841f51 148 ldr r1, =__etext
bogdanm 13:0645d8841f51 149 ldr r2, =__data_start__
bogdanm 13:0645d8841f51 150 ldr r3, =__data_end__
bogdanm 13:0645d8841f51 151
bogdanm 13:0645d8841f51 152 subs r3, r2
bogdanm 13:0645d8841f51 153 ble .flash_to_ram_loop_end
bogdanm 13:0645d8841f51 154
bogdanm 13:0645d8841f51 155 movs r4, 0
bogdanm 13:0645d8841f51 156 .flash_to_ram_loop:
bogdanm 13:0645d8841f51 157 ldr r0, [r1,r4]
bogdanm 13:0645d8841f51 158 str r0, [r2,r4]
bogdanm 13:0645d8841f51 159 adds r4, 4
bogdanm 13:0645d8841f51 160 cmp r4, r3
bogdanm 13:0645d8841f51 161 blt .flash_to_ram_loop
bogdanm 13:0645d8841f51 162 .flash_to_ram_loop_end:
bogdanm 13:0645d8841f51 163
bogdanm 13:0645d8841f51 164 ldr r0, =SystemInit
bogdanm 13:0645d8841f51 165 blx r0
bogdanm 13:0645d8841f51 166 ldr r0, =_start
bogdanm 13:0645d8841f51 167 bx r0
bogdanm 13:0645d8841f51 168 .pool
bogdanm 13:0645d8841f51 169 .size Reset_Handler, . - Reset_Handler
bogdanm 13:0645d8841f51 170
bogdanm 13:0645d8841f51 171 .text
bogdanm 13:0645d8841f51 172 /* Macro to define default handlers. Default handler
bogdanm 13:0645d8841f51 173 * will be weak symbol and just dead loops. They can be
bogdanm 13:0645d8841f51 174 * overwritten by other handlers */
bogdanm 13:0645d8841f51 175 .macro def_default_handler handler_name
bogdanm 13:0645d8841f51 176 .align 1
bogdanm 13:0645d8841f51 177 .thumb_func
bogdanm 13:0645d8841f51 178 .weak \handler_name
bogdanm 13:0645d8841f51 179 .type \handler_name, %function
bogdanm 13:0645d8841f51 180 \handler_name :
bogdanm 13:0645d8841f51 181 b .
bogdanm 13:0645d8841f51 182 .size \handler_name, . - \handler_name
bogdanm 13:0645d8841f51 183 .endm
bogdanm 13:0645d8841f51 184
bogdanm 13:0645d8841f51 185 def_default_handler NMI_Handler
bogdanm 13:0645d8841f51 186 def_default_handler HardFault_Handler
bogdanm 13:0645d8841f51 187 def_default_handler SVC_Handler
bogdanm 13:0645d8841f51 188 def_default_handler PendSV_Handler
bogdanm 13:0645d8841f51 189 def_default_handler SysTick_Handler
bogdanm 13:0645d8841f51 190 def_default_handler DMA0_IRQHandler
bogdanm 13:0645d8841f51 191 def_default_handler DMA1_IRQHandler
bogdanm 13:0645d8841f51 192 def_default_handler DMA2_IRQHandler
bogdanm 13:0645d8841f51 193 def_default_handler DMA3_IRQHandler
bogdanm 13:0645d8841f51 194 def_default_handler Reserved20_IRQHandler
bogdanm 13:0645d8841f51 195 def_default_handler FTFA_IRQHandler
bogdanm 13:0645d8841f51 196 def_default_handler LVD_LVW_IRQHandler
bogdanm 13:0645d8841f51 197 def_default_handler LLW_IRQHandler
bogdanm 13:0645d8841f51 198 def_default_handler I2C0_IRQHandler
bogdanm 13:0645d8841f51 199 def_default_handler I2C1_IRQHandler
bogdanm 13:0645d8841f51 200 def_default_handler SPI0_IRQHandler
bogdanm 13:0645d8841f51 201 def_default_handler SPI1_IRQHandler
bogdanm 13:0645d8841f51 202 def_default_handler UART0_IRQHandler
bogdanm 13:0645d8841f51 203 def_default_handler UART1_IRQHandler
bogdanm 13:0645d8841f51 204 def_default_handler UART2_IRQHandler
bogdanm 13:0645d8841f51 205 def_default_handler ADC0_IRQHandler
bogdanm 13:0645d8841f51 206 def_default_handler CMP0_IRQHandler
bogdanm 13:0645d8841f51 207 def_default_handler TPM0_IRQHandler
bogdanm 13:0645d8841f51 208 def_default_handler TPM1_IRQHandler
bogdanm 13:0645d8841f51 209 def_default_handler TPM2_IRQHandler
bogdanm 13:0645d8841f51 210 def_default_handler RTC_IRQHandler
bogdanm 13:0645d8841f51 211 def_default_handler RTC_Seconds_IRQHandler
bogdanm 13:0645d8841f51 212 def_default_handler PIT_IRQHandler
bogdanm 13:0645d8841f51 213 def_default_handler Reserved39_IRQHandler
bogdanm 13:0645d8841f51 214 def_default_handler USB0_IRQHandler
bogdanm 13:0645d8841f51 215 def_default_handler DAC0_IRQHandler
bogdanm 13:0645d8841f51 216 def_default_handler TSI0_IRQHandler
bogdanm 13:0645d8841f51 217 def_default_handler MCG_IRQHandler
bogdanm 13:0645d8841f51 218 def_default_handler LPTimer_IRQHandler
bogdanm 13:0645d8841f51 219 def_default_handler Reserved45_IRQHandler
bogdanm 13:0645d8841f51 220 def_default_handler PORTA_IRQHandler
bogdanm 13:0645d8841f51 221 def_default_handler PORTD_IRQHandler
bogdanm 13:0645d8841f51 222
bogdanm 13:0645d8841f51 223 .weak DEF_IRQHandler
bogdanm 13:0645d8841f51 224 .set DEF_IRQHandler, Default_Handler
bogdanm 13:0645d8841f51 225
bogdanm 13:0645d8841f51 226 .end