mbed library sources: Modified to operate FRDM-KL25Z at 48MHz from internal 32kHz oscillator (nothing else changed).
Fork of mbed-src by
The only file that changed is: mbed-src-FLL48/targets/cmsis/TARGET_Freescale/TARGET_KL25Z/system_MKL25Z4.h
targets/cmsis/TARGET_NXP/TARGET_LPC11CXX/TOOLCHAIN_GCC_ARM/startup_LPC11xx.s@20:4263a77256ae, 2013-09-10 (annotated)
- Committer:
- bogdanm
- Date:
- Tue Sep 10 15:14:19 2013 +0300
- Revision:
- 20:4263a77256ae
Sync with git revision 171dda705c947bf910926a0b73d6a4797802554d
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 20:4263a77256ae | 1 | /* File: startup_ARMCM0.S |
bogdanm | 20:4263a77256ae | 2 | * Purpose: startup file for Cortex-M0 devices. Should use with |
bogdanm | 20:4263a77256ae | 3 | * GCC for ARM Embedded Processors |
bogdanm | 20:4263a77256ae | 4 | * Version: V1.2 |
bogdanm | 20:4263a77256ae | 5 | * Date: 15 Nov 2011 |
bogdanm | 20:4263a77256ae | 6 | * |
bogdanm | 20:4263a77256ae | 7 | * Copyright (c) 2011, ARM Limited |
bogdanm | 20:4263a77256ae | 8 | * All rights reserved. |
bogdanm | 20:4263a77256ae | 9 | * |
bogdanm | 20:4263a77256ae | 10 | * Redistribution and use in source and binary forms, with or without |
bogdanm | 20:4263a77256ae | 11 | * modification, are permitted provided that the following conditions are met: |
bogdanm | 20:4263a77256ae | 12 | * Redistributions of source code must retain the above copyright |
bogdanm | 20:4263a77256ae | 13 | notice, this list of conditions and the following disclaimer. |
bogdanm | 20:4263a77256ae | 14 | * Redistributions in binary form must reproduce the above copyright |
bogdanm | 20:4263a77256ae | 15 | notice, this list of conditions and the following disclaimer in the |
bogdanm | 20:4263a77256ae | 16 | documentation and/or other materials provided with the distribution. |
bogdanm | 20:4263a77256ae | 17 | * Neither the name of the ARM Limited nor the |
bogdanm | 20:4263a77256ae | 18 | names of its contributors may be used to endorse or promote products |
bogdanm | 20:4263a77256ae | 19 | derived from this software without specific prior written permission. |
bogdanm | 20:4263a77256ae | 20 | * |
bogdanm | 20:4263a77256ae | 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
bogdanm | 20:4263a77256ae | 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
bogdanm | 20:4263a77256ae | 23 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
bogdanm | 20:4263a77256ae | 24 | * DISCLAIMED. IN NO EVENT SHALL ARM LIMITED BE LIABLE FOR ANY |
bogdanm | 20:4263a77256ae | 25 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
bogdanm | 20:4263a77256ae | 26 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
bogdanm | 20:4263a77256ae | 27 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
bogdanm | 20:4263a77256ae | 28 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
bogdanm | 20:4263a77256ae | 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
bogdanm | 20:4263a77256ae | 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
bogdanm | 20:4263a77256ae | 31 | */ |
bogdanm | 20:4263a77256ae | 32 | .syntax unified |
bogdanm | 20:4263a77256ae | 33 | .arch armv6-m |
bogdanm | 20:4263a77256ae | 34 | |
bogdanm | 20:4263a77256ae | 35 | /* Memory Model |
bogdanm | 20:4263a77256ae | 36 | The HEAP starts at the end of the DATA section and grows upward. |
bogdanm | 20:4263a77256ae | 37 | |
bogdanm | 20:4263a77256ae | 38 | The STACK starts at the end of the RAM and grows downward. |
bogdanm | 20:4263a77256ae | 39 | |
bogdanm | 20:4263a77256ae | 40 | The HEAP and stack STACK are only checked at compile time: |
bogdanm | 20:4263a77256ae | 41 | (DATA_SIZE + HEAP_SIZE + STACK_SIZE) < RAM_SIZE |
bogdanm | 20:4263a77256ae | 42 | |
bogdanm | 20:4263a77256ae | 43 | This is just a check for the bare minimum for the Heap+Stack area before |
bogdanm | 20:4263a77256ae | 44 | aborting compilation, it is not the run time limit: |
bogdanm | 20:4263a77256ae | 45 | Heap_Size + Stack_Size = 0x80 + 0x80 = 0x100 |
bogdanm | 20:4263a77256ae | 46 | */ |
bogdanm | 20:4263a77256ae | 47 | .section .stack |
bogdanm | 20:4263a77256ae | 48 | .align 3 |
bogdanm | 20:4263a77256ae | 49 | #ifdef __STACK_SIZE |
bogdanm | 20:4263a77256ae | 50 | .equ Stack_Size, __STACK_SIZE |
bogdanm | 20:4263a77256ae | 51 | #else |
bogdanm | 20:4263a77256ae | 52 | .equ Stack_Size, 0x80 |
bogdanm | 20:4263a77256ae | 53 | #endif |
bogdanm | 20:4263a77256ae | 54 | .globl __StackTop |
bogdanm | 20:4263a77256ae | 55 | .globl __StackLimit |
bogdanm | 20:4263a77256ae | 56 | __StackLimit: |
bogdanm | 20:4263a77256ae | 57 | .space Stack_Size |
bogdanm | 20:4263a77256ae | 58 | .size __StackLimit, . - __StackLimit |
bogdanm | 20:4263a77256ae | 59 | __StackTop: |
bogdanm | 20:4263a77256ae | 60 | .size __StackTop, . - __StackTop |
bogdanm | 20:4263a77256ae | 61 | |
bogdanm | 20:4263a77256ae | 62 | .section .heap |
bogdanm | 20:4263a77256ae | 63 | .align 3 |
bogdanm | 20:4263a77256ae | 64 | #ifdef __HEAP_SIZE |
bogdanm | 20:4263a77256ae | 65 | .equ Heap_Size, __HEAP_SIZE |
bogdanm | 20:4263a77256ae | 66 | #else |
bogdanm | 20:4263a77256ae | 67 | .equ Heap_Size, 0x80 |
bogdanm | 20:4263a77256ae | 68 | #endif |
bogdanm | 20:4263a77256ae | 69 | .globl __HeapBase |
bogdanm | 20:4263a77256ae | 70 | .globl __HeapLimit |
bogdanm | 20:4263a77256ae | 71 | __HeapBase: |
bogdanm | 20:4263a77256ae | 72 | .space Heap_Size |
bogdanm | 20:4263a77256ae | 73 | .size __HeapBase, . - __HeapBase |
bogdanm | 20:4263a77256ae | 74 | __HeapLimit: |
bogdanm | 20:4263a77256ae | 75 | .size __HeapLimit, . - __HeapLimit |
bogdanm | 20:4263a77256ae | 76 | |
bogdanm | 20:4263a77256ae | 77 | .section .isr_vector |
bogdanm | 20:4263a77256ae | 78 | .align 2 |
bogdanm | 20:4263a77256ae | 79 | .globl __isr_vector |
bogdanm | 20:4263a77256ae | 80 | __isr_vector: |
bogdanm | 20:4263a77256ae | 81 | .long __StackTop /* Top of Stack */ |
bogdanm | 20:4263a77256ae | 82 | .long Reset_Handler /* Reset Handler */ |
bogdanm | 20:4263a77256ae | 83 | .long NMI_Handler /* NMI Handler */ |
bogdanm | 20:4263a77256ae | 84 | .long HardFault_Handler /* Hard Fault Handler */ |
bogdanm | 20:4263a77256ae | 85 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 86 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 87 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 88 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 89 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 90 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 91 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 92 | .long SVC_Handler /* SVCall Handler */ |
bogdanm | 20:4263a77256ae | 93 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 94 | .long 0 /* Reserved */ |
bogdanm | 20:4263a77256ae | 95 | .long PendSV_Handler /* PendSV Handler */ |
bogdanm | 20:4263a77256ae | 96 | .long SysTick_Handler /* SysTick Handler */ |
bogdanm | 20:4263a77256ae | 97 | |
bogdanm | 20:4263a77256ae | 98 | /* LPC11xx interrupts */ |
bogdanm | 20:4263a77256ae | 99 | .long WAKEUP_IRQHandler /* 16 0 Wake-up on pin PIO0_0 */ |
bogdanm | 20:4263a77256ae | 100 | .long WAKEUP_IRQHandler /* 17 1 Wake-up on pin PIO0_1 */ |
bogdanm | 20:4263a77256ae | 101 | .long WAKEUP_IRQHandler /* 18 2 Wake-up on pin PIO0_2 */ |
bogdanm | 20:4263a77256ae | 102 | .long WAKEUP_IRQHandler /* 19 3 Wake-up on pin PIO0_3 */ |
bogdanm | 20:4263a77256ae | 103 | .long WAKEUP_IRQHandler /* 20 4 Wake-up on pin PIO0_4 */ |
bogdanm | 20:4263a77256ae | 104 | .long WAKEUP_IRQHandler /* 21 5 Wake-up on pin PIO0_5 */ |
bogdanm | 20:4263a77256ae | 105 | .long WAKEUP_IRQHandler /* 22 6 Wake-up on pin PIO0_6 */ |
bogdanm | 20:4263a77256ae | 106 | .long WAKEUP_IRQHandler /* 23 7 Wake-up on pin PIO0_7 */ |
bogdanm | 20:4263a77256ae | 107 | .long WAKEUP_IRQHandler /* 24 8 Wake-up on pin PIO0_8 */ |
bogdanm | 20:4263a77256ae | 108 | .long WAKEUP_IRQHandler /* 25 9 Wake-up on pin PIO0_9 */ |
bogdanm | 20:4263a77256ae | 109 | .long WAKEUP_IRQHandler /* 26 10 Wake-up on pin PIO0_10 */ |
bogdanm | 20:4263a77256ae | 110 | .long WAKEUP_IRQHandler /* 27 11 Wake-up on pin PIO0_11 */ |
bogdanm | 20:4263a77256ae | 111 | .long WAKEUP_IRQHandler /* 28 12 Wake-up on pin PIO1_0 */ |
bogdanm | 20:4263a77256ae | 112 | .long Default_Handler /* 29 13 */ |
bogdanm | 20:4263a77256ae | 113 | .long SSP1_IRQHandler /* 30 14 SSP1 */ |
bogdanm | 20:4263a77256ae | 114 | .long I2C_IRQHandler /* 31 15 I2C0 SI (state change) */ |
bogdanm | 20:4263a77256ae | 115 | .long TIMER16_0_IRQHandler /* 32 16 CT16B0 16 bit timer 0 */ |
bogdanm | 20:4263a77256ae | 116 | .long TIMER16_1_IRQHandler /* 33 17 CT16B1 16 bit timer 1 */ |
bogdanm | 20:4263a77256ae | 117 | .long TIMER32_0_IRQHandler /* 34 18 CT32B0 32 bit timer 0 */ |
bogdanm | 20:4263a77256ae | 118 | .long TIMER32_1_IRQHandler /* 35 19 CT32B1 32 bit timer 1 */ |
bogdanm | 20:4263a77256ae | 119 | .long SSP0_IRQHandler /* 36 20 SSP */ |
bogdanm | 20:4263a77256ae | 120 | .long UART_IRQHandler /* 37 21 UART */ |
bogdanm | 20:4263a77256ae | 121 | .long Default_Handler /* 38 22 */ |
bogdanm | 20:4263a77256ae | 122 | .long Default_Handler /* 39 23 */ |
bogdanm | 20:4263a77256ae | 123 | .long ADC_IRQHandler /* 40 24 ADC end of conversion */ |
bogdanm | 20:4263a77256ae | 124 | .long WDT_IRQHandler /* 41 25 Watchdog interrupt (WDINT) */ |
bogdanm | 20:4263a77256ae | 125 | .long BOD_IRQHandler /* 42 26 BOD Brown-out detect */ |
bogdanm | 20:4263a77256ae | 126 | .long Default_Handler /* 43 27 */ |
bogdanm | 20:4263a77256ae | 127 | .long PIOINT3_IRQHandler /* 44 28 PIO_3 GPIO interrupt status of port 3 */ |
bogdanm | 20:4263a77256ae | 128 | .long PIOINT2_IRQHandler /* 45 29 PIO_2 GPIO interrupt status of port 2 */ |
bogdanm | 20:4263a77256ae | 129 | .long PIOINT1_IRQHandler /* 46 30 PIO_1 GPIO interrupt status of port 1 */ |
bogdanm | 20:4263a77256ae | 130 | .long PIOINT0_IRQHandler /* 47 31 PIO_0 GPIO interrupt status of port 0 */ |
bogdanm | 20:4263a77256ae | 131 | |
bogdanm | 20:4263a77256ae | 132 | .size __isr_vector, . - __isr_vector |
bogdanm | 20:4263a77256ae | 133 | |
bogdanm | 20:4263a77256ae | 134 | .section .text.Reset_Handler |
bogdanm | 20:4263a77256ae | 135 | .thumb |
bogdanm | 20:4263a77256ae | 136 | .thumb_func |
bogdanm | 20:4263a77256ae | 137 | .align 2 |
bogdanm | 20:4263a77256ae | 138 | .globl Reset_Handler |
bogdanm | 20:4263a77256ae | 139 | .type Reset_Handler, %function |
bogdanm | 20:4263a77256ae | 140 | Reset_Handler: |
bogdanm | 20:4263a77256ae | 141 | /* Loop to copy data from read only memory to RAM. The ranges |
bogdanm | 20:4263a77256ae | 142 | * of copy from/to are specified by following symbols evaluated in |
bogdanm | 20:4263a77256ae | 143 | * linker script. |
bogdanm | 20:4263a77256ae | 144 | * __etext: End of code section, i.e., begin of data sections to copy from. |
bogdanm | 20:4263a77256ae | 145 | * __data_start__/__data_end__: RAM address range that data should be |
bogdanm | 20:4263a77256ae | 146 | * copied to. Both must be aligned to 4 bytes boundary. */ |
bogdanm | 20:4263a77256ae | 147 | |
bogdanm | 20:4263a77256ae | 148 | ldr r1, =__etext |
bogdanm | 20:4263a77256ae | 149 | ldr r2, =__data_start__ |
bogdanm | 20:4263a77256ae | 150 | ldr r3, =__data_end__ |
bogdanm | 20:4263a77256ae | 151 | |
bogdanm | 20:4263a77256ae | 152 | subs r3, r2 |
bogdanm | 20:4263a77256ae | 153 | ble .flash_to_ram_loop_end |
bogdanm | 20:4263a77256ae | 154 | |
bogdanm | 20:4263a77256ae | 155 | movs r4, 0 |
bogdanm | 20:4263a77256ae | 156 | .flash_to_ram_loop: |
bogdanm | 20:4263a77256ae | 157 | ldr r0, [r1,r4] |
bogdanm | 20:4263a77256ae | 158 | str r0, [r2,r4] |
bogdanm | 20:4263a77256ae | 159 | adds r4, 4 |
bogdanm | 20:4263a77256ae | 160 | cmp r4, r3 |
bogdanm | 20:4263a77256ae | 161 | blt .flash_to_ram_loop |
bogdanm | 20:4263a77256ae | 162 | .flash_to_ram_loop_end: |
bogdanm | 20:4263a77256ae | 163 | |
bogdanm | 20:4263a77256ae | 164 | ldr r0, =SystemInit |
bogdanm | 20:4263a77256ae | 165 | blx r0 |
bogdanm | 20:4263a77256ae | 166 | ldr r0, =_start |
bogdanm | 20:4263a77256ae | 167 | bx r0 |
bogdanm | 20:4263a77256ae | 168 | .pool |
bogdanm | 20:4263a77256ae | 169 | .size Reset_Handler, . - Reset_Handler |
bogdanm | 20:4263a77256ae | 170 | |
bogdanm | 20:4263a77256ae | 171 | .text |
bogdanm | 20:4263a77256ae | 172 | /* Macro to define default handlers. Default handler |
bogdanm | 20:4263a77256ae | 173 | * will be weak symbol and just dead loops. They can be |
bogdanm | 20:4263a77256ae | 174 | * overwritten by other handlers */ |
bogdanm | 20:4263a77256ae | 175 | .macro def_default_handler handler_name |
bogdanm | 20:4263a77256ae | 176 | .align 1 |
bogdanm | 20:4263a77256ae | 177 | .thumb_func |
bogdanm | 20:4263a77256ae | 178 | .weak \handler_name |
bogdanm | 20:4263a77256ae | 179 | .type \handler_name, %function |
bogdanm | 20:4263a77256ae | 180 | \handler_name : |
bogdanm | 20:4263a77256ae | 181 | b . |
bogdanm | 20:4263a77256ae | 182 | .size \handler_name, . - \handler_name |
bogdanm | 20:4263a77256ae | 183 | .endm |
bogdanm | 20:4263a77256ae | 184 | |
bogdanm | 20:4263a77256ae | 185 | def_default_handler NMI_Handler |
bogdanm | 20:4263a77256ae | 186 | def_default_handler HardFault_Handler |
bogdanm | 20:4263a77256ae | 187 | def_default_handler SVC_Handler |
bogdanm | 20:4263a77256ae | 188 | def_default_handler PendSV_Handler |
bogdanm | 20:4263a77256ae | 189 | def_default_handler SysTick_Handler |
bogdanm | 20:4263a77256ae | 190 | def_default_handler Default_Handler |
bogdanm | 20:4263a77256ae | 191 | |
bogdanm | 20:4263a77256ae | 192 | def_default_handler WAKEUP_IRQHandler |
bogdanm | 20:4263a77256ae | 193 | def_default_handler SSP1_IRQHandler |
bogdanm | 20:4263a77256ae | 194 | def_default_handler I2C_IRQHandler |
bogdanm | 20:4263a77256ae | 195 | def_default_handler TIMER16_0_IRQHandler |
bogdanm | 20:4263a77256ae | 196 | def_default_handler TIMER16_1_IRQHandler |
bogdanm | 20:4263a77256ae | 197 | def_default_handler TIMER32_0_IRQHandler |
bogdanm | 20:4263a77256ae | 198 | def_default_handler TIMER32_1_IRQHandler |
bogdanm | 20:4263a77256ae | 199 | def_default_handler SSP0_IRQHandler |
bogdanm | 20:4263a77256ae | 200 | def_default_handler UART_IRQHandler |
bogdanm | 20:4263a77256ae | 201 | def_default_handler ADC_IRQHandler |
bogdanm | 20:4263a77256ae | 202 | def_default_handler WDT_IRQHandler |
bogdanm | 20:4263a77256ae | 203 | def_default_handler BOD_IRQHandler |
bogdanm | 20:4263a77256ae | 204 | def_default_handler PIOINT3_IRQHandler |
bogdanm | 20:4263a77256ae | 205 | def_default_handler PIOINT2_IRQHandler |
bogdanm | 20:4263a77256ae | 206 | def_default_handler PIOINT1_IRQHandler |
bogdanm | 20:4263a77256ae | 207 | def_default_handler PIOINT0_IRQHandler |
bogdanm | 20:4263a77256ae | 208 | |
bogdanm | 20:4263a77256ae | 209 | .weak DEF_IRQHandler |
bogdanm | 20:4263a77256ae | 210 | .set DEF_IRQHandler, Default_Handler |
bogdanm | 20:4263a77256ae | 211 | |
bogdanm | 20:4263a77256ae | 212 | .end |
bogdanm | 20:4263a77256ae | 213 |