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Startup.s
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Startup.s
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; <<< Use Configuration Wizard in Context Menu >>>
;******************************************************************************
;
; startup_rvmdk.S - Startup code for use with Keil's uVision.
;
; Copyright (c) 2012 Texas Instruments Incorporated. All rights reserved.
; Software License Agreement
;
; Texas Instruments (TI) is supplying this software for use solely and
; exclusively on TI's microcontroller products. The software is owned by
; TI and/or its suppliers, and is protected under applicable copyright
; laws. You may not combine this software with "viral" open-source
; software in order to form a larger program.
;
; THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
; 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. TI SHALL NOT, UNDER ANY
; CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
; DAMAGES, FOR ANY REASON WHATSOEVER.
;
; This is part of revision 9453 of the EK-LM4F120XL Firmware Package.
;
;******************************************************************************
; Edited to conform with ISR names as described in
; "Embedded Systems: Introduction to ARM Cortex M Microcontrollers",
; ISBN: 978-1469998749, Jonathan Valvano, copyright (c) 2012
; "Embedded Systems: Real Time Interfacing to ARM Cortex M Microcontrollers",
; ISBN: 978-1463590154, Jonathan Valvano, copyright (c) 2012
; "Embedded Systems: Real-Time Operating Systems for ARM Cortex M Microcontrollers",
; ISBN: 978-1466468863, Jonathan Valvano, copyright (c) 2013
;
;******************************************************************************
;
; <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
;
;******************************************************************************
Stack EQU 0x00000400
;******************************************************************************
;
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
;
;******************************************************************************
Heap EQU 0x00000000
;******************************************************************************
;
; Allocate space for the stack.
;
;******************************************************************************
AREA STACK, NOINIT, READWRITE, ALIGN=3
StackMem
SPACE Stack
__initial_sp
;******************************************************************************
;
; Allocate space for the heap.
;
;******************************************************************************
AREA HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
HeapMem
SPACE Heap
__heap_limit
;******************************************************************************
;
; 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 NMI_Handler ; NMI Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler
DCD UsageFault_Handler ; Usage Fault Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD SVC_Handler ; SVCall Handler
DCD DebugMon_Handler ; Debug Monitor Handler
DCD 0 ; Reserved
DCD PendSV_Handler ; PendSV Handler
DCD SysTick_Handler ; SysTick Handler
DCD GPIOPortA_Handler ; GPIO Port A
DCD GPIOPortB_Handler ; GPIO Port B
DCD GPIOPortC_Handler ; GPIO Port C
DCD GPIOPortD_Handler ; GPIO Port D
DCD GPIOPortE_Handler ; GPIO Port E
DCD UART0_Handler ; UART0 Rx and Tx
DCD UART1_Handler ; UART1 Rx and Tx
DCD SSI0_Handler ; SSI0 Rx and Tx
DCD I2C0_Handler ; I2C0 Master and Slave
DCD PWM0Fault_Handler ; PWM 0 Fault
DCD PWM0Generator0_Handler ; PWM 0 Generator 0
DCD PWM0Generator1_Handler ; PWM 0 Generator 1
DCD PWM0Generator2_Handler ; PWM 0 Generator 2
DCD Quadrature0_Handler ; Quadrature Encoder 0
DCD ADC0Seq0_Handler ; ADC0 Sequence 0
DCD ADC0Seq1_Handler ; ADC0 Sequence 1
DCD ADC0Seq1_Handler ; ADC0 Sequence 2
DCD ADC0Seq1_Handler ; ADC0 Sequence 3
DCD WDT_Handler ; Watchdog
DCD Timer0A_Handler ; Timer 0 subtimer A
DCD Timer0B_Handler ; Timer 0 subtimer B
DCD Timer1A_Handler ; Timer 1 subtimer A
DCD Timer1B_Handler ; Timer 1 subtimer B
DCD Timer2A_Handler ; Timer 2 subtimer A
DCD Timer2B_Handler ; Timer 2 subtimer B
DCD Comp0_Handler ; Analog Comp 0
DCD Comp1_Handler ; Analog Comp 1
DCD Comp2_Handler ; Analog Comp 2
DCD SysCtl_Handler ; System Control
DCD FlashCtl_Handler ; Flash Control
DCD GPIOPortF_Handler ; GPIO Port F
DCD GPIOPortG_Handler ; GPIO Port G
DCD GPIOPortH_Handler ; GPIO Port H
DCD UART2_Handler ; UART2 Rx and Tx
DCD SSI1_Handler ; SSI1 Rx and Tx
DCD Timer3A_Handler ; Timer 3 subtimer A
DCD Timer3B_Handler ; Timer 3 subtimer B
DCD I2C1_Handler ; I2C1 Master and Slave
DCD Quadrature1_Handler ; Quadrature Encoder 1
DCD CAN0_Handler ; CAN0
DCD CAN1_Handler ; CAN1
DCD CAN2_Handler ; CAN2
DCD Ethernet_Handler ; Ethernet
DCD Hibernate_Handler ; Hibernate
DCD USB0_Handler ; USB0
DCD PWM0Generator3_Handler ; PWM 0 Generator 3
DCD uDMA_Handler ; uDMA Software Transfer
DCD uDMA_Error ; uDMA Error
DCD ADC1Seq0_Handler ; ADC1 Sequence 0
DCD ADC1Seq1_Handler ; ADC1 Sequence 1
DCD ADC1Seq2_Handler ; ADC1 Sequence 2
DCD ADC1Seq3_Handler ; ADC1 Sequence 3
DCD I2S0_Handler ; I2S0
DCD ExtBus_Handler ; External Bus Interface 0
DCD GPIOPortJ_Handler ; GPIO Port J
DCD GPIOPortK_Handler ; GPIO Port K
DCD GPIOPortL_Handler ; GPIO Port L
DCD SSI2_Handler ; SSI2 Rx and Tx
DCD SSI3_Handler ; SSI3 Rx and Tx
DCD UART3_Handler ; UART3 Rx and Tx
DCD UART4_Handler ; UART4 Rx and Tx
DCD UART5_Handler ; UART5 Rx and Tx
DCD UART6_Handler ; UART6 Rx and Tx
DCD UART7_Handler ; UART7 Rx and Tx
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD I2C2_Handler ; I2C2 Master and Slave
DCD I2C3_Handler ; I2C3 Master and Slave
DCD Timer4A_Handler ; Timer 4 subtimer A
DCD Timer4B_Handler ; Timer 4 subtimer B
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD Timer5A_Handler ; Timer 5 subtimer A
DCD Timer5B_Handler ; Timer 5 subtimer B
DCD WideTimer0A_Handler ; Wide Timer 0 subtimer A
DCD WideTimer0B_Handler ; Wide Timer 0 subtimer B
DCD WideTimer1A_Handler ; Wide Timer 1 subtimer A
DCD WideTimer1B_Handler ; Wide Timer 1 subtimer B
DCD WideTimer2A_Handler ; Wide Timer 2 subtimer A
DCD WideTimer2B_Handler ; Wide Timer 2 subtimer B
DCD WideTimer3A_Handler ; Wide Timer 3 subtimer A
DCD WideTimer3B_Handler ; Wide Timer 3 subtimer B
DCD WideTimer4A_Handler ; Wide Timer 4 subtimer A
DCD WideTimer4B_Handler ; Wide Timer 4 subtimer B
DCD WideTimer5A_Handler ; Wide Timer 5 subtimer A
DCD WideTimer5B_Handler ; Wide Timer 5 subtimer B
DCD FPU_Handler ; FPU
DCD PECI0_Handler ; PECI 0
DCD LPC0_Handler ; LPC 0
DCD I2C4_Handler ; I2C4 Master and Slave
DCD I2C5_Handler ; I2C5 Master and Slave
DCD GPIOPortM_Handler ; GPIO Port M
DCD GPIOPortN_Handler ; GPIO Port N
DCD Quadrature2_Handler ; Quadrature Encoder 2
DCD Fan0_Handler ; Fan 0
DCD 0 ; Reserved
DCD GPIOPortP_Handler ; GPIO Port P (Summary or P0)
DCD GPIOPortP1_Handler ; GPIO Port P1
DCD GPIOPortP2_Handler ; GPIO Port P2
DCD GPIOPortP3_Handler ; GPIO Port P3
DCD GPIOPortP4_Handler ; GPIO Port P4
DCD GPIOPortP5_Handler ; GPIO Port P5
DCD GPIOPortP6_Handler ; GPIO Port P6
DCD GPIOPortP7_Handler ; GPIO Port P7
DCD GPIOPortQ_Handler ; GPIO Port Q (Summary or Q0)
DCD GPIOPortQ1_Handler ; GPIO Port Q1
DCD GPIOPortQ2_Handler ; GPIO Port Q2
DCD GPIOPortQ3_Handler ; GPIO Port Q3
DCD GPIOPortQ4_Handler ; GPIO Port Q4
DCD GPIOPortQ5_Handler ; GPIO Port Q5
DCD GPIOPortQ6_Handler ; GPIO Port Q6
DCD GPIOPortQ7_Handler ; GPIO Port Q7
DCD GPIOPortR_Handler ; GPIO Port R
DCD GPIOPortS_Handler ; GPIO Port S
DCD PWM1Generator0_Handler ; PWM 1 Generator 0
DCD PWM1Generator1_Handler ; PWM 1 Generator 1
DCD PWM1Generator2_Handler ; PWM 1 Generator 2
DCD PWM1Generator3_Handler ; PWM 1 Generator 3
DCD PWM1Fault_Handler ; PWM 1 Fault
;******************************************************************************
;
; This is the code that gets called when the processor first starts execution
; following a reset event.
;
;******************************************************************************
EXPORT Reset_Handler
Reset_Handler
;
; DO NOT Enable the floating-point unit. This must be done here to handle the
; case where main() uses floating-point and the function prologue saves
; floating-point registers (which will fault if floating-point is not
; enabled). Any configuration of the floating-point unit using
; DriverLib APIs must be done here prior to the floating-point unit
; being enabled.
;
; Note that this does not use DriverLib since it might not be included
; in this project.
;
; MOVW R0, #0xED88
; MOVT R0, #0xE000
; LDR R1, [R0]
; ORR R1, #0x00F00000
; STR R1, [R0]
;
; 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.
;
IMPORT Start
B Start ;call user assembly language program
;******************************************************************************
;
; 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.
;
;******************************************************************************
NMI_Handler PROC
EXPORT NMI_Handler [WEAK]
B .
ENDP
;******************************************************************************
;
; 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.
;
;******************************************************************************
HardFault_Handler\
PROC
EXPORT HardFault_Handler [WEAK]
B .
ENDP
MemManage_Handler\
PROC
EXPORT MemManage_Handler [WEAK]
B .
ENDP
BusFault_Handler\
PROC
EXPORT BusFault_Handler [WEAK]
B .
ENDP
UsageFault_Handler\
PROC
EXPORT UsageFault_Handler [WEAK]
B .
ENDP
SVC_Handler PROC
EXPORT SVC_Handler [WEAK]
B .
ENDP
DebugMon_Handler\
PROC
EXPORT DebugMon_Handler [WEAK]
B .
ENDP
PendSV_Handler PROC
EXPORT PendSV_Handler [WEAK]
B .
ENDP
SysTick_Handler PROC
EXPORT SysTick_Handler [WEAK]
B .
ENDP
IntDefaultHandler\
PROC
EXPORT GPIOPortA_Handler [WEAK]
EXPORT GPIOPortB_Handler [WEAK]
EXPORT GPIOPortC_Handler [WEAK]
EXPORT GPIOPortD_Handler [WEAK]
EXPORT GPIOPortE_Handler [WEAK]
EXPORT UART0_Handler [WEAK]
EXPORT UART1_Handler [WEAK]
EXPORT SSI0_Handler [WEAK]
EXPORT I2C0_Handler [WEAK]
EXPORT PWM0Fault_Handler [WEAK]
EXPORT PWM0Generator0_Handler [WEAK]
EXPORT PWM0Generator1_Handler [WEAK]
EXPORT PWM0Generator2_Handler [WEAK]
EXPORT Quadrature0_Handler [WEAK]
EXPORT ADC0Seq0_Handler [WEAK]
EXPORT ADC0Seq1_Handler [WEAK]
EXPORT ADC0Seq2_Handler [WEAK]
EXPORT ADC0Seq3_Handler [WEAK]
EXPORT WDT_Handler [WEAK]
EXPORT Timer0A_Handler [WEAK]
EXPORT Timer0B_Handler [WEAK]
EXPORT Timer1A_Handler [WEAK]
EXPORT Timer1B_Handler [WEAK]
EXPORT Timer2A_Handler [WEAK]
EXPORT Timer2B_Handler [WEAK]
EXPORT Comp0_Handler [WEAK]
EXPORT Comp1_Handler [WEAK]
EXPORT Comp2_Handler [WEAK]
EXPORT SysCtl_Handler [WEAK]
EXPORT FlashCtl_Handler [WEAK]
EXPORT GPIOPortF_Handler [WEAK]
EXPORT GPIOPortG_Handler [WEAK]
EXPORT GPIOPortH_Handler [WEAK]
EXPORT UART2_Handler [WEAK]
EXPORT SSI1_Handler [WEAK]
EXPORT Timer3A_Handler [WEAK]
EXPORT Timer3B_Handler [WEAK]
EXPORT I2C1_Handler [WEAK]
EXPORT Quadrature1_Handler [WEAK]
EXPORT CAN0_Handler [WEAK]
EXPORT CAN1_Handler [WEAK]
EXPORT CAN2_Handler [WEAK]
EXPORT Ethernet_Handler [WEAK]
EXPORT Hibernate_Handler [WEAK]
EXPORT USB0_Handler [WEAK]
EXPORT PWM0Generator3_Handler [WEAK]
EXPORT uDMA_Handler [WEAK]
EXPORT uDMA_Error [WEAK]
EXPORT ADC1Seq0_Handler [WEAK]
EXPORT ADC1Seq1_Handler [WEAK]
EXPORT ADC1Seq2_Handler [WEAK]
EXPORT ADC1Seq3_Handler [WEAK]
EXPORT I2S0_Handler [WEAK]
EXPORT ExtBus_Handler [WEAK]
EXPORT GPIOPortJ_Handler [WEAK]
EXPORT GPIOPortK_Handler [WEAK]
EXPORT GPIOPortL_Handler [WEAK]
EXPORT SSI2_Handler [WEAK]
EXPORT SSI3_Handler [WEAK]
EXPORT UART3_Handler [WEAK]
EXPORT UART4_Handler [WEAK]
EXPORT UART5_Handler [WEAK]
EXPORT UART6_Handler [WEAK]
EXPORT UART7_Handler [WEAK]
EXPORT I2C2_Handler [WEAK]
EXPORT I2C3_Handler [WEAK]
EXPORT Timer4A_Handler [WEAK]
EXPORT Timer4B_Handler [WEAK]
EXPORT Timer5A_Handler [WEAK]
EXPORT Timer5B_Handler [WEAK]
EXPORT WideTimer0A_Handler [WEAK]
EXPORT WideTimer0B_Handler [WEAK]
EXPORT WideTimer1A_Handler [WEAK]
EXPORT WideTimer1B_Handler [WEAK]
EXPORT WideTimer2A_Handler [WEAK]
EXPORT WideTimer2B_Handler [WEAK]
EXPORT WideTimer3A_Handler [WEAK]
EXPORT WideTimer3B_Handler [WEAK]
EXPORT WideTimer4A_Handler [WEAK]
EXPORT WideTimer4B_Handler [WEAK]
EXPORT WideTimer5A_Handler [WEAK]
EXPORT WideTimer5B_Handler [WEAK]
EXPORT FPU_Handler [WEAK]
EXPORT PECI0_Handler [WEAK]
EXPORT LPC0_Handler [WEAK]
EXPORT I2C4_Handler [WEAK]
EXPORT I2C5_Handler [WEAK]
EXPORT GPIOPortM_Handler [WEAK]
EXPORT GPIOPortN_Handler [WEAK]
EXPORT Quadrature2_Handler [WEAK]
EXPORT Fan0_Handler [WEAK]
EXPORT GPIOPortP_Handler [WEAK]
EXPORT GPIOPortP1_Handler [WEAK]
EXPORT GPIOPortP2_Handler [WEAK]
EXPORT GPIOPortP3_Handler [WEAK]
EXPORT GPIOPortP4_Handler [WEAK]
EXPORT GPIOPortP5_Handler [WEAK]
EXPORT GPIOPortP6_Handler [WEAK]
EXPORT GPIOPortP7_Handler [WEAK]
EXPORT GPIOPortQ_Handler [WEAK]
EXPORT GPIOPortQ1_Handler [WEAK]
EXPORT GPIOPortQ2_Handler [WEAK]
EXPORT GPIOPortQ3_Handler [WEAK]
EXPORT GPIOPortQ4_Handler [WEAK]
EXPORT GPIOPortQ5_Handler [WEAK]
EXPORT GPIOPortQ6_Handler [WEAK]
EXPORT GPIOPortQ7_Handler [WEAK]
EXPORT GPIOPortR_Handler [WEAK]
EXPORT GPIOPortS_Handler [WEAK]
EXPORT PWM1Generator0_Handler [WEAK]
EXPORT PWM1Generator1_Handler [WEAK]
EXPORT PWM1Generator2_Handler [WEAK]
EXPORT PWM1Generator3_Handler [WEAK]
EXPORT PWM1Fault_Handler [WEAK]
GPIOPortA_Handler
GPIOPortB_Handler
GPIOPortC_Handler
GPIOPortD_Handler
GPIOPortE_Handler
UART0_Handler
UART1_Handler
SSI0_Handler
I2C0_Handler
PWM0Fault_Handler
PWM0Generator0_Handler
PWM0Generator1_Handler
PWM0Generator2_Handler
Quadrature0_Handler
ADC0Seq0_Handler
ADC0Seq1_Handler
ADC0Seq2_Handler
ADC0Seq3_Handler
WDT_Handler
Timer0A_Handler
Timer0B_Handler
Timer1A_Handler
Timer1B_Handler
Timer2A_Handler
Timer2B_Handler
Comp0_Handler
Comp1_Handler
Comp2_Handler
SysCtl_Handler
FlashCtl_Handler
GPIOPortF_Handler
GPIOPortG_Handler
GPIOPortH_Handler
UART2_Handler
SSI1_Handler
Timer3A_Handler
Timer3B_Handler
I2C1_Handler
Quadrature1_Handler
CAN0_Handler
CAN1_Handler
CAN2_Handler
Ethernet_Handler
Hibernate_Handler
USB0_Handler
PWM0Generator3_Handler
uDMA_Handler
uDMA_Error
ADC1Seq0_Handler
ADC1Seq1_Handler
ADC1Seq2_Handler
ADC1Seq3_Handler
I2S0_Handler
ExtBus_Handler
GPIOPortJ_Handler
GPIOPortK_Handler
GPIOPortL_Handler
SSI2_Handler
SSI3_Handler
UART3_Handler
UART4_Handler
UART5_Handler
UART6_Handler
UART7_Handler
I2C2_Handler
I2C3_Handler
Timer4A_Handler
Timer4B_Handler
Timer5A_Handler
Timer5B_Handler
WideTimer0A_Handler
WideTimer0B_Handler
WideTimer1A_Handler
WideTimer1B_Handler
WideTimer2A_Handler
WideTimer2B_Handler
WideTimer3A_Handler
WideTimer3B_Handler
WideTimer4A_Handler
WideTimer4B_Handler
WideTimer5A_Handler
WideTimer5B_Handler
FPU_Handler
PECI0_Handler
LPC0_Handler
I2C4_Handler
I2C5_Handler
GPIOPortM_Handler
GPIOPortN_Handler
Quadrature2_Handler
Fan0_Handler
GPIOPortP_Handler
GPIOPortP1_Handler
GPIOPortP2_Handler
GPIOPortP3_Handler
GPIOPortP4_Handler
GPIOPortP5_Handler
GPIOPortP6_Handler
GPIOPortP7_Handler
GPIOPortQ_Handler
GPIOPortQ1_Handler
GPIOPortQ2_Handler
GPIOPortQ3_Handler
GPIOPortQ4_Handler
GPIOPortQ5_Handler
GPIOPortQ6_Handler
GPIOPortQ7_Handler
GPIOPortR_Handler
GPIOPortS_Handler
PWM1Generator0_Handler
PWM1Generator1_Handler
PWM1Generator2_Handler
PWM1Generator3_Handler
PWM1Fault_Handler
B .
ENDP
;******************************************************************************
;
; 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
;******************************************************************************
;
; Useful functions.
;
;******************************************************************************
EXPORT DisableInterrupts
EXPORT EnableInterrupts
EXPORT StartCritical
EXPORT EndCritical
EXPORT WaitForInterrupt
;*********** DisableInterrupts ***************
; disable interrupts
; inputs: none
; outputs: none
DisableInterrupts
CPSID I
BX LR
;*********** EnableInterrupts ***************
; disable interrupts
; inputs: none
; outputs: none
EnableInterrupts
CPSIE I
BX LR
;*********** StartCritical ************************
; make a copy of previous I bit, disable interrupts
; inputs: none
; outputs: previous I bit
StartCritical
MRS R0, PRIMASK ; save old status
CPSID I ; mask all (except faults)
BX LR
;*********** EndCritical ************************
; using the copy of previous I bit, restore I bit to previous value
; inputs: previous I bit
; outputs: none
EndCritical
MSR PRIMASK, R0
BX LR
;*********** WaitForInterrupt ************************
; go to low power mode while waiting for the next interrupt
; inputs: none
; outputs: none
WaitForInterrupt
WFI
BX LR
;******************************************************************************
;
; Make sure the end of this section is aligned.
;
;******************************************************************************
ALIGN
;******************************************************************************
;
; Tell the assembler that we're done.
;
;******************************************************************************
END