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; <<< Use Configuration Wizard in Context Menu >>>

;******************************************************************************

;

; startup_rvmdk.S - Startup code for Stellaris.

;

; Copyright (c) 2006 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 Stellaris Family of 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 816 of the Stellaris Driver Library.

;

;******************************************************************************

;******************************************************************************

;

;  Stack Configuration

;    Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>

; 

;

;******************************************************************************

Stack   EQU     0x00000100

;******************************************************************************

;

;  Heap Configuration

;    Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>

; 

;

;******************************************************************************

Heap    EQU     0x00000000

;******************************************************************************

;

; Allocate space for the stack.

;

;******************************************************************************

        AREA    STACK, NOINIT, READWRITE, ALIGN=3

StackMem

        SPACE   Stack

;******************************************************************************

;

; Allocate space for the heap.

;

;******************************************************************************

        AREA    HEAP, NOINIT, READWRITE, ALIGN=3

HeapMem

        SPACE   Heap

;******************************************************************************

;

; 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.

;

;******************************************************************************

                EXPORT __Vectors

__Vectors

        DCD     StackMem + Stack            ; Top of Stack

        DCD     Reset_Handler               ; Reset Handler

        DCD     NmiSR                       ; NMI Handler

        DCD     FaultISR                    ; 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     vPortSVCHandler             ; SVCall Handler

        DCD     IntDefaultHandler           ; Debug Monitor Handler

        DCD     0                           ; Reserved

        DCD     xPortPendSVHandler              ; PendSV Handler

        DCD     xPortSysTickHandler             ; SysTick Handler

        DCD     IntDefaultHandler           ; GPIO Port A

        DCD     IntDefaultHandler           ; GPIO Port B

        DCD     vGPIO_ISR               ; GPIO Port C

        DCD     IntDefaultHandler           ; GPIO Port D

        DCD     IntDefaultHandler           ; GPIO Port E

        DCD     vUART_ISR                       ; 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

        DCD     IntDefaultHandler           ; 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

        DCD     IntDefaultHandler           ; Comp 0

        DCD     IntDefaultHandler           ; Comp 1

        DCD     IntDefaultHandler           ; Comp 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_Handler

Reset_Handler

        ;

        ; Call __main() in the C library, which will call the application

        ; supplied main().

        ;

        IMPORT  __main

                IMPORT  vGPIO_ISR

                IMPORT  vUART_ISR

                IMPORT  xPortPendSVHandler

                IMPORT  xPortSysTickHandler

                IMPORT  vPortSVCHandler

        LDR     R0, =__main

        BX      R0

;******************************************************************************

;

; This is the code that gets called when the processor receives a NMI.  This

; simply enters an infinite loop, preserving the system state for examination

; by a debugger.

;

;******************************************************************************

NmiSR

        B       NmiSR

;******************************************************************************

;

; This is the code that gets called when the processor receives a fault

; interrupt.  This simply enters an infinite loop, preserving the system state

; for examination by a debugger.

;

;******************************************************************************

FaultISR

        B       FaultISR

;******************************************************************************

;

; This is the code that gets called when the processor receives an unexpected

; interrupt.  This simply enters an infinite loop, preserving the system state

; for examination by a debugger.

;

;******************************************************************************

IntDefaultHandler

        B       IntDefaultHandler

;******************************************************************************

;

; 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

;******************************************************************************

;

; The function expected of the C library startup code for defining the stack

; and heap memory locations.

;

;******************************************************************************

        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

;******************************************************************************

;

; Make sure the end of this section is aligned.

;

;******************************************************************************

        ALIGN

; Note:

; Using READWRITE places Section .RTOSHeap in Region ER_RW.

; Using NOINIT places Section .RTOSHeap in Region ER_ZI,which means

; "ZEROINITIALIZE" (sic), and which is the last region in memory. Then

; we need to make this section the last section, which is somewhat tricky,

; because we cannot use the sectionname, but need to use a defined symbol:

; Linker option: "--last xHeap"

                EXPORT xHeap

                AREA    RTOSHeap, DATA, NOINIT

xHeap

;******************************************************************************

;

; Tell the assembler that we're done.

;

;******************************************************************************

        END