📄 startup_rvmdk.s
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; <<< Use Configuration Wizard in Context Menu >>>;******************************************************************************;; startup_rvmdk.S - Startup code for Stellaris.;; Copyright (c) 2006-2007 Luminary Micro, Inc. All rights reserved.;; Software License Agreement;; Luminary Micro, Inc. (LMI) is supplying this software for use solely and; exclusively on LMI's microcontroller products.;; The software is owned by LMI and/or its suppliers, and is protected under; applicable copyright laws. All rights are reserved. Any use in violation of; the foregoing restrictions may subject the user to criminal sanctions under; applicable laws, as well as to civil liability for the breach of the terms; and conditions of this license.;; THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED; OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.; LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR; CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.;; This is part of revision 199 of an01245.;;******************************************************************************;******************************************************************************;; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>;;******************************************************************************Stack EQU 0x00000100;******************************************************************************;; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>;;******************************************************************************Heap EQU 0x00000000;******************************************************************************;; <o> Use C Library <0=> No <1=> Yes;;******************************************************************************Startup EQU 0;******************************************************************************;; Allocate space for the stack.;;****************************************************************************** AREA STACK, NOINIT, READWRITE, ALIGN=3StackMem SPACE Stack;******************************************************************************;; Allocate space for the heap.;;****************************************************************************** IF Startup = 1 AREA HEAP, NOINIT, READWRITE, ALIGN=3HeapMem SPACE Heap ENDIF;******************************************************************************;; Indicate that the code in this file preserves 8-byte alignment of the stack.;;****************************************************************************** PRESERVE8;******************************************************************************;; Place code into the reset code section.;;****************************************************************************** AREA RESET, CODE, READONLY THUMB;******************************************************************************;; The vector table.;;******************************************************************************Vectors DCD StackMem + Stack ; Top of Stack DCD Reset_Handler ; Reset Handler EXTERN IntDefaultHandler DCD IntDefaultHandler ; NMI Handler DCD IntDefaultHandler ; Hard Fault Handler DCD IntDefaultHandler ; MPU Fault Handler DCD IntDefaultHandler ; Bus Fault Handler DCD IntDefaultHandler ; Usage Fault Handler DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD 0 ; Reserved DCD IntDefaultHandler ; SVCall Handler DCD IntDefaultHandler ; Debug Monitor Handler DCD 0 ; Reserved DCD IntDefaultHandler ; PendSV Handler EXTERN SysTickHandler DCD SysTickHandler ; SysTick Handler DCD IntDefaultHandler ; GPIO Port A DCD IntDefaultHandler ; GPIO Port B DCD IntDefaultHandler ; GPIO Port C DCD IntDefaultHandler ; GPIO Port D DCD IntDefaultHandler ; GPIO Port E DCD IntDefaultHandler ; UART0 DCD IntDefaultHandler ; UART1 DCD IntDefaultHandler ; SSI DCD IntDefaultHandler ; I2C DCD IntDefaultHandler ; PWM Fault DCD IntDefaultHandler ; PWM Generator 0 DCD IntDefaultHandler ; PWM Generator 1 DCD IntDefaultHandler ; PWM Generator 2 DCD IntDefaultHandler ; Quadrature Encoder EXTERN ADC0IntHandler DCD ADC0IntHandler ; ADC Sequence 0 DCD IntDefaultHandler ; ADC Sequence 1 DCD IntDefaultHandler ; ADC Sequence 2 DCD IntDefaultHandler ; ADC Sequence 3 DCD IntDefaultHandler ; Watchdog DCD IntDefaultHandler ; Timer 0A DCD IntDefaultHandler ; Timer 0B DCD IntDefaultHandler ; Timer 1A DCD IntDefaultHandler ; Timer 1B DCD IntDefaultHandler ; Timer 2A DCD IntDefaultHandler ; Timer 2B EXTERN CompIntHandler DCD CompIntHandler ; Analog Comparator 0 DCD IntDefaultHandler ; Analog Comparator 1 DCD IntDefaultHandler ; Analog Comparator 2 DCD IntDefaultHandler ; System Control DCD IntDefaultHandler ; Flash Control;******************************************************************************;; This is the code that gets called when the processor first starts execution; following a reset event.;;****************************************************************************** EXPORT Reset_HandlerReset_Handler ; ; Call the C library enty point that handles startup. This will copy ; the .data section initializers from flash to SRAM and zero fill the ; .bss section. It will then call __rt_entry, which will be either the ; C library version or the one supplied here depending on the ; configured startup type. ; IMPORT __main B __main;******************************************************************************;; Make sure the end of this section is aligned.;;****************************************************************************** ALIGN;******************************************************************************;; Some code in the normal code section for initializing the heap and stack.;;****************************************************************************** AREA |.text|, CODE, READONLY;******************************************************************************;; This fucntion is called by the RV-MDK C library startup code to initialize; the C library and call the application's entry point. For the non-C library; version of the startup code, provide a replacement function that simply calls; the application's entry point, avoiding the added code overhead of the C; library initialization code.;;****************************************************************************** IF Startup = 0 EXPORT __rt_entry__rt_entry ; ; Branch to the application's entry point. ; IMPORT main B main ENDIF;******************************************************************************;; The function expected of the C library startup code for defining the stack; and heap memory locations. For the C library version of the startup code,; provide this function so that the C library initialization code can find out; the location of the stack and heap.;;****************************************************************************** IF Startup = 1 IMPORT __use_two_region_memory EXPORT __user_initial_stackheap__user_initial_stackheap LDR R0, =HeapMem LDR R1, =(StackMem + Stack) LDR R2, =(HeapMem + Heap) LDR R3, =StackMem BX LR ENDIF;******************************************************************************;; Make sure the end of this section is aligned.;;****************************************************************************** ALIGN;******************************************************************************;; Tell the assembler that we're done.;;****************************************************************************** END⌨️ 快捷键说明
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