/* Copyright (c) 2013 ARM LIMITED All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: - Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - Neither the name of ARM nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ---------------------------------------------------------------------------*/ .syntax unified .arch armv7e-m .section .stack .align 3 #ifdef __STACK_SIZE .equ Stack_Size, __STACK_SIZE #else .equ Stack_Size, 8192 #endif .globl __StackTop .globl __StackLimit __StackLimit: .space Stack_Size .size __StackLimit, . - __StackLimit __StackTop: .size __StackTop, . - __StackTop .section .heap .align 3 #ifdef __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 DebugMonitor_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 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 */ .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 */ .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 */ .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 DebugMonitor_Handler .type DebugMonitor_Handler, %function DebugMonitor_Handler: b . .size DebugMonitor_Handler, . - DebugMonitor_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 .end