411 lines
12 KiB
ArmAsm
411 lines
12 KiB
ArmAsm
|
/*
|
||
|
|
|
||
|
|
Copyright (c) 2009-2017 ARM Limited. All rights reserved.
|
||
|
|
|
||
|
|
SPDX-License-Identifier: Apache-2.0
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the License); you may
|
||
|
|
not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an AS IS BASIS, WITHOUT
|
||
|
|
WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
|
||
|
|
NOTICE: This file has been modified by Nordic Semiconductor ASA.
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
.syntax unified
|
||
|
|
.arch armv7e-m
|
||
|
|
|
||
|
|
#ifdef __STARTUP_CONFIG
|
||
|
|
#include "startup_config.h"
|
||
|
|
#ifndef __STARTUP_CONFIG_STACK_ALIGNEMENT
|
||
|
|
#define __STARTUP_CONFIG_STACK_ALIGNEMENT 3
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
.section .stack
|
||
|
|
#if defined(__STARTUP_CONFIG)
|
||
|
|
.align __STARTUP_CONFIG_STACK_ALIGNEMENT
|
||
|
|
.equ Stack_Size, __STARTUP_CONFIG_STACK_SIZE
|
||
|
|
#elif defined(__STACK_SIZE)
|
||
|
|
.align 3
|
||
|
|
.equ Stack_Size, __STACK_SIZE
|
||
|
|
#else
|
||
|
|
.align 3
|
||
|
|
.equ Stack_Size, 8192
|
||
|
|
#endif
|
||
|
|
.globl __StackTop
|
||
|
|
.globl __StackLimit
|
||
|
|
__StackLimit:
|
||
|
|
.space Stack_Size
|
||
|
|
.size __StackLimit, . - __StackLimit
|
||
|
|
__StackTop:
|
||
|
|
.size __StackTop, . - __StackTop
|
||
|
|
|
||
|
|
.section .heap
|
||
|
|
.align 3
|
||
|
|
#if defined(__STARTUP_CONFIG)
|
||
|
|
.equ Heap_Size, __STARTUP_CONFIG_HEAP_SIZE
|
||
|
|
#elif defined(__HEAP_SIZE)
|
||
|
|
.equ Heap_Size, __HEAP_SIZE
|
||
|
|
#else
|
||
|
|
.equ Heap_Size, 8192
|
||
|
|
#endif
|
||
|
|
.globl __HeapBase
|
||
|
|
.globl __HeapLimit
|
||
|
|
__HeapBase:
|
||
|
|
.if Heap_Size
|
||
|
|
.space Heap_Size
|
||
|
|
.endif
|
||
|
|
.size __HeapBase, . - __HeapBase
|
||
|
|
__HeapLimit:
|
||
|
|
.size __HeapLimit, . - __HeapLimit
|
||
|
|
|
||
|
|
.section .isr_vector
|
||
|
|
.align 2
|
||
|
|
.globl __isr_vector
|
||
|
|
__isr_vector:
|
||
|
|
.long __StackTop /* Top of Stack */
|
||
|
|
.long Reset_Handler
|
||
|
|
.long NMI_Handler
|
||
|
|
.long HardFault_Handler
|
||
|
|
.long MemoryManagement_Handler
|
||
|
|
.long BusFault_Handler
|
||
|
|
.long UsageFault_Handler
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long SVC_Handler
|
||
|
|
.long DebugMon_Handler
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long PendSV_Handler
|
||
|
|
.long SysTick_Handler
|
||
|
|
|
||
|
|
/* External Interrupts */
|
||
|
|
.long POWER_CLOCK_IRQHandler
|
||
|
|
.long RADIO_IRQHandler
|
||
|
|
.long UARTE0_UART0_IRQHandler
|
||
|
|
.long SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
|
||
|
|
.long SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
|
||
|
|
.long NFCT_IRQHandler
|
||
|
|
.long GPIOTE_IRQHandler
|
||
|
|
.long SAADC_IRQHandler
|
||
|
|
.long TIMER0_IRQHandler
|
||
|
|
.long TIMER1_IRQHandler
|
||
|
|
.long TIMER2_IRQHandler
|
||
|
|
.long RTC0_IRQHandler
|
||
|
|
.long TEMP_IRQHandler
|
||
|
|
.long RNG_IRQHandler
|
||
|
|
.long ECB_IRQHandler
|
||
|
|
.long CCM_AAR_IRQHandler
|
||
|
|
.long WDT_IRQHandler
|
||
|
|
.long RTC1_IRQHandler
|
||
|
|
.long QDEC_IRQHandler
|
||
|
|
.long COMP_LPCOMP_IRQHandler
|
||
|
|
.long SWI0_EGU0_IRQHandler
|
||
|
|
.long SWI1_EGU1_IRQHandler
|
||
|
|
.long SWI2_EGU2_IRQHandler
|
||
|
|
.long SWI3_EGU3_IRQHandler
|
||
|
|
.long SWI4_EGU4_IRQHandler
|
||
|
|
.long SWI5_EGU5_IRQHandler
|
||
|
|
.long TIMER3_IRQHandler
|
||
|
|
.long TIMER4_IRQHandler
|
||
|
|
.long PWM0_IRQHandler
|
||
|
|
.long PDM_IRQHandler
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long MWU_IRQHandler
|
||
|
|
.long PWM1_IRQHandler
|
||
|
|
.long PWM2_IRQHandler
|
||
|
|
.long SPIM2_SPIS2_SPI2_IRQHandler
|
||
|
|
.long RTC2_IRQHandler
|
||
|
|
.long I2S_IRQHandler
|
||
|
|
.long FPU_IRQHandler
|
||
|
|
.long USBD_IRQHandler
|
||
|
|
.long UARTE1_IRQHandler
|
||
|
|
.long QSPI_IRQHandler
|
||
|
|
.long CRYPTOCELL_IRQHandler
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long PWM3_IRQHandler
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long SPIM3_IRQHandler
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
.long 0 /*Reserved */
|
||
|
|
|
||
|
|
.size __isr_vector, . - __isr_vector
|
||
|
|
|
||
|
|
/* Reset Handler */
|
||
|
|
|
||
|
|
|
||
|
|
.text
|
||
|
|
.thumb
|
||
|
|
.thumb_func
|
||
|
|
.align 1
|
||
|
|
.globl Reset_Handler
|
||
|
|
.type Reset_Handler, %function
|
||
|
|
Reset_Handler:
|
||
|
|
|
||
|
|
|
||
|
|
/* Loop to copy data from read only memory to RAM.
|
||
|
|
* The ranges of copy from/to are specified by following symbols:
|
||
|
|
* __etext: LMA of start of the section to copy from. Usually end of text
|
||
|
|
* __data_start__: VMA of start of the section to copy to.
|
||
|
|
* __bss_start__: VMA of end of the section to copy to. Normally __data_end__ is used, but by using __bss_start__
|
||
|
|
* the user can add their own initialized data section before BSS section with the INTERT AFTER command.
|
||
|
|
*
|
||
|
|
* All addresses must be aligned to 4 bytes boundary.
|
||
|
|
*/
|
||
|
|
ldr r1, =__etext
|
||
|
|
ldr r2, =__data_start__
|
||
|
|
ldr r3, =__bss_start__
|
||
|
|
|
||
|
|
subs r3, r2
|
||
|
|
ble .L_loop1_done
|
||
|
|
|
||
|
|
.L_loop1:
|
||
|
|
subs r3, #4
|
||
|
|
ldr r0, [r1,r3]
|
||
|
|
str r0, [r2,r3]
|
||
|
|
bgt .L_loop1
|
||
|
|
|
||
|
|
.L_loop1_done:
|
||
|
|
|
||
|
|
/* This part of work usually is done in C library startup code. Otherwise,
|
||
|
|
* define __STARTUP_CLEAR_BSS to enable it in this startup. This section
|
||
|
|
* clears the RAM where BSS data is located.
|
||
|
|
*
|
||
|
|
* The BSS section is specified by following symbols
|
||
|
|
* __bss_start__: start of the BSS section.
|
||
|
|
* __bss_end__: end of the BSS section.
|
||
|
|
*
|
||
|
|
* All addresses must be aligned to 4 bytes boundary.
|
||
|
|
*/
|
||
|
|
#ifdef __STARTUP_CLEAR_BSS
|
||
|
|
ldr r1, =__bss_start__
|
||
|
|
ldr r2, =__bss_end__
|
||
|
|
|
||
|
|
movs r0, 0
|
||
|
|
|
||
|
|
subs r2, r1
|
||
|
|
ble .L_loop3_done
|
||
|
|
|
||
|
|
.L_loop3:
|
||
|
|
subs r2, #4
|
||
|
|
str r0, [r1, r2]
|
||
|
|
bgt .L_loop3
|
||
|
|
|
||
|
|
.L_loop3_done:
|
||
|
|
#endif /* __STARTUP_CLEAR_BSS */
|
||
|
|
|
||
|
|
/* Execute SystemInit function. */
|
||
|
|
bl SystemInit
|
||
|
|
|
||
|
|
/* Call _start function provided by libraries.
|
||
|
|
* If those libraries are not accessible, define __START as your entry point.
|
||
|
|
*/
|
||
|
|
#ifndef __START
|
||
|
|
#define __START _start
|
||
|
|
#endif
|
||
|
|
bl __START
|
||
|
|
|
||
|
|
.pool
|
||
|
|
.size Reset_Handler,.-Reset_Handler
|
||
|
|
|
||
|
|
.section ".text"
|
||
|
|
|
||
|
|
|
||
|
|
/* Dummy Exception Handlers (infinite loops which can be modified) */
|
||
|
|
|
||
|
|
.weak NMI_Handler
|
||
|
|
.type NMI_Handler, %function
|
||
|
|
NMI_Handler:
|
||
|
|
b .
|
||
|
|
.size NMI_Handler, . - NMI_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak HardFault_Handler
|
||
|
|
.type HardFault_Handler, %function
|
||
|
|
HardFault_Handler:
|
||
|
|
b .
|
||
|
|
.size HardFault_Handler, . - HardFault_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak MemoryManagement_Handler
|
||
|
|
.type MemoryManagement_Handler, %function
|
||
|
|
MemoryManagement_Handler:
|
||
|
|
b .
|
||
|
|
.size MemoryManagement_Handler, . - MemoryManagement_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak BusFault_Handler
|
||
|
|
.type BusFault_Handler, %function
|
||
|
|
BusFault_Handler:
|
||
|
|
b .
|
||
|
|
.size BusFault_Handler, . - BusFault_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak UsageFault_Handler
|
||
|
|
.type UsageFault_Handler, %function
|
||
|
|
UsageFault_Handler:
|
||
|
|
b .
|
||
|
|
.size UsageFault_Handler, . - UsageFault_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak SVC_Handler
|
||
|
|
.type SVC_Handler, %function
|
||
|
|
SVC_Handler:
|
||
|
|
b .
|
||
|
|
.size SVC_Handler, . - SVC_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak DebugMon_Handler
|
||
|
|
.type DebugMon_Handler, %function
|
||
|
|
DebugMon_Handler:
|
||
|
|
b .
|
||
|
|
.size DebugMon_Handler, . - DebugMon_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak PendSV_Handler
|
||
|
|
.type PendSV_Handler, %function
|
||
|
|
PendSV_Handler:
|
||
|
|
b .
|
||
|
|
.size PendSV_Handler, . - PendSV_Handler
|
||
|
|
|
||
|
|
|
||
|
|
.weak SysTick_Handler
|
||
|
|
.type SysTick_Handler, %function
|
||
|
|
SysTick_Handler:
|
||
|
|
b .
|
||
|
|
.size SysTick_Handler, . - SysTick_Handler
|
||
|
|
|
||
|
|
|
||
|
|
/* IRQ Handlers */
|
||
|
|
|
||
|
|
.globl Default_Handler
|
||
|
|
.type Default_Handler, %function
|
||
|
|
Default_Handler:
|
||
|
|
b .
|
||
|
|
.size Default_Handler, . - Default_Handler
|
||
|
|
|
||
|
|
.macro IRQ handler
|
||
|
|
.weak \handler
|
||
|
|
.set \handler, Default_Handler
|
||
|
|
.endm
|
||
|
|
|
||
|
|
IRQ POWER_CLOCK_IRQHandler
|
||
|
|
IRQ RADIO_IRQHandler
|
||
|
|
IRQ UARTE0_UART0_IRQHandler
|
||
|
|
IRQ SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
|
||
|
|
IRQ SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
|
||
|
|
IRQ NFCT_IRQHandler
|
||
|
|
IRQ GPIOTE_IRQHandler
|
||
|
|
IRQ SAADC_IRQHandler
|
||
|
|
IRQ TIMER0_IRQHandler
|
||
|
|
IRQ TIMER1_IRQHandler
|
||
|
|
IRQ TIMER2_IRQHandler
|
||
|
|
IRQ RTC0_IRQHandler
|
||
|
|
IRQ TEMP_IRQHandler
|
||
|
|
IRQ RNG_IRQHandler
|
||
|
|
IRQ ECB_IRQHandler
|
||
|
|
IRQ CCM_AAR_IRQHandler
|
||
|
|
IRQ WDT_IRQHandler
|
||
|
|
IRQ RTC1_IRQHandler
|
||
|
|
IRQ QDEC_IRQHandler
|
||
|
|
IRQ COMP_LPCOMP_IRQHandler
|
||
|
|
IRQ SWI0_EGU0_IRQHandler
|
||
|
|
IRQ SWI1_EGU1_IRQHandler
|
||
|
|
IRQ SWI2_EGU2_IRQHandler
|
||
|
|
IRQ SWI3_EGU3_IRQHandler
|
||
|
|
IRQ SWI4_EGU4_IRQHandler
|
||
|
|
IRQ SWI5_EGU5_IRQHandler
|
||
|
|
IRQ TIMER3_IRQHandler
|
||
|
|
IRQ TIMER4_IRQHandler
|
||
|
|
IRQ PWM0_IRQHandler
|
||
|
|
IRQ PDM_IRQHandler
|
||
|
|
IRQ MWU_IRQHandler
|
||
|
|
IRQ PWM1_IRQHandler
|
||
|
|
IRQ PWM2_IRQHandler
|
||
|
|
IRQ SPIM2_SPIS2_SPI2_IRQHandler
|
||
|
|
IRQ RTC2_IRQHandler
|
||
|
|
IRQ I2S_IRQHandler
|
||
|
|
IRQ FPU_IRQHandler
|
||
|
|
IRQ USBD_IRQHandler
|
||
|
|
IRQ UARTE1_IRQHandler
|
||
|
|
IRQ QSPI_IRQHandler
|
||
|
|
IRQ CRYPTOCELL_IRQHandler
|
||
|
|
IRQ PWM3_IRQHandler
|
||
|
|
IRQ SPIM3_IRQHandler
|
||
|
|
|
||
|
|
.end
|