start_rvds.S

; /*
; * File      : start_rvds.s
; * This file is part of RT-Thread RTOS
; * COPYRIGHT (C) 2009 - 2011, RT-Thread Development Team
; *
; * The license and distribution terms for this file may be
; * found in the file LICENSE in this distribution or at
; * http://www.rt-thread.org/license/LICENSE
; *
; * Change Logs:
; * Date           Author       Notes
; * 2011-02-23     Bernard      first implementation
; */

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

; Amount of memory (in bytes) allocated for Stack
; Tailor this value to your application needs
; <h> Stack Configuration
;   <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>

Stack_Size  EQU     0x00000200

            AREA    STACK, NOINIT, READWRITE, ALIGN=3
Stack_Mem   SPACE   Stack_Size
__initial_sp

; Note: RT-Thread not use malloc/free in Keil MDK, therefore the heap size is 0.
Heap_Size   EQU     0x00000000

            AREA    HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem    SPACE   Heap_Size
__heap_limit

            PRESERVE8
            THUMB

; Vector Table Mapped to Address 0 at Reset
            AREA    RESET, DATA, READONLY
            EXPORT  __Vectors
            EXPORT  __Vectors_End
            EXPORT  __Vectors_Size

__Vectors   DCD     __initial_sp               ; 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     CSV_Handler               ; 0: Clock Super Visor
            DCD     SWDT_Handler              ; 1: Software Watchdog Timer
            DCD     LVD_Handler               ; 2: Low Voltage Detector
            DCD     MFT_WG_IRQHandler         ; 3: Wave Form Generator / DTIF
            DCD     INT0_7_Handler            ; 4: External Interrupt Request ch.0 to ch.7
            DCD     INT8_15_Handler           ; 5: External Interrupt Request ch.8 to ch.15
            DCD     DT_Handler                ; 6: Dual Timer / Quad Decoder
            DCD     MFS0RX_IRQHandler         ; 7: MultiFunction Serial ch.0
            DCD     MFS0TX_IRQHandler         ; 8: MultiFunction Serial ch.0
            DCD     MFS1RX_IRQHandler         ; 9: MultiFunction Serial ch.1
            DCD     MFS1TX_IRQHandler         ; 10: MultiFunction Serial ch.1
            DCD     MFS2RX_IRQHandler         ; 11: MultiFunction Serial ch.2
            DCD     MFS2TX_IRQHandler         ; 12: MultiFunction Serial ch.2
            DCD     MFS3RX_IRQHandler         ; 13: MultiFunction Serial ch.3
            DCD     MFS3TX_IRQHandler         ; 14: MultiFunction Serial ch.3
            DCD     MFS4RX_IRQHandler         ; 15: MultiFunction Serial ch.4
            DCD     MFS4TX_IRQHandler         ; 16: MultiFunction Serial ch.4
            DCD     MFS5RX_IRQHandler         ; 17: MultiFunction Serial ch.5
            DCD     MFS5TX_IRQHandler         ; 18: MultiFunction Serial ch.5
            DCD     MFS6RX_IRQHandler         ; 19: MultiFunction Serial ch.6
            DCD     MFS6TX_IRQHandler         ; 20: MultiFunction Serial ch.6
            DCD     MFS7RX_IRQHandler         ; 21: MultiFunction Serial ch.7
            DCD     MFS7TX_IRQHandler         ; 22: MultiFunction Serial ch.7
            DCD     PPG_Handler               ; 23: PPG
            DCD     TIM_IRQHandler            ; 24: OSC / PLL / Watch Counter
            DCD     ADC0_IRQHandler           ; 25: ADC0
            DCD     ADC1_IRQHandler           ; 26: ADC1
            DCD     ADC2_IRQHandler           ; 27: ADC2
            DCD     MFT_FRT_IRQHandler        ; 28: Free-run Timer
            DCD     MFT_IPC_IRQHandler        ; 29: Input Capture
            DCD     MFT_OPC_IRQHandler        ; 30: Output Compare
            DCD     BT_IRQHandler             ; 31: Base Timer ch.0 to ch.7
            DCD     CAN0_IRQHandler           ; 32: CAN ch.0
            DCD     CAN1_IRQHandler           ; 33: CAN ch.1
            DCD     USBF_Handler              ; 34: USB Function
            DCD     USB_Handler               ; 35: USB Function / USB HOST
            DCD     DummyHandler              ; 36: Reserved
            DCD     DummyHandler              ; 37: Reserved
            DCD     DMAC0_Handler             ; 38: DMAC ch.0
            DCD     DMAC1_Handler             ; 39: DMAC ch.1
            DCD     DMAC2_Handler             ; 40: DMAC ch.2
            DCD     DMAC3_Handler             ; 41: DMAC ch.3
            DCD     DMAC4_Handler             ; 42: DMAC ch.4
            DCD     DMAC5_Handler             ; 43: DMAC ch.5
            DCD     DMAC6_Handler             ; 44: DMAC ch.6
            DCD     DMAC7_Handler             ; 45: DMAC ch.7
            DCD     DummyHandler              ; 46: Reserved
            DCD     DummyHandler              ; 47: Reserved
__Vectors_End

__Vectors_Size  EQU     __Vectors_End - __Vectors

    AREA    |.text|, CODE, READONLY

; Reset handler routine
Reset_Handler   PROC
                EXPORT  Reset_Handler             [WEAK]
                IMPORT  __main
                IMPORT  SystemInit
                LDR     R1, = __initial_sp        ; restore original stack pointer
                MSR     MSP, R1
                LDR     R0, =SystemInit
                BLX     R0
                LDR     R0, =__main
                BX      R0
                ENDP

; Dummy Exception Handlers (infinite loops which can be modified)

NMI_Handler     PROC
                EXPORT  NMI_Handler                [WEAK]
                B       .
                ENDP
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

Default_Handler PROC

                EXPORT  CSV_Handler               [WEAK]
                EXPORT  SWDT_Handler              [WEAK]
                EXPORT  LVD_Handler               [WEAK]
                EXPORT  MFT_WG_IRQHandler         [WEAK]
                EXPORT  INT0_7_Handler            [WEAK]
                EXPORT  INT8_15_Handler           [WEAK]
                EXPORT  DT_Handler                [WEAK]
                EXPORT  MFS0RX_IRQHandler         [WEAK]
                EXPORT  MFS0TX_IRQHandler         [WEAK]
                EXPORT  MFS1RX_IRQHandler         [WEAK]
                EXPORT  MFS1TX_IRQHandler         [WEAK]
                EXPORT  MFS2RX_IRQHandler         [WEAK]
                EXPORT  MFS2TX_IRQHandler         [WEAK]
                EXPORT  MFS3RX_IRQHandler         [WEAK]
                EXPORT  MFS3TX_IRQHandler         [WEAK]
                EXPORT  MFS4RX_IRQHandler         [WEAK]
                EXPORT  MFS4TX_IRQHandler         [WEAK]
                EXPORT  MFS5RX_IRQHandler         [WEAK]
                EXPORT  MFS5TX_IRQHandler         [WEAK]
                EXPORT  MFS6RX_IRQHandler         [WEAK]
                EXPORT  MFS6TX_IRQHandler         [WEAK]
                EXPORT  MFS7RX_IRQHandler         [WEAK]
                EXPORT  MFS7TX_IRQHandler         [WEAK]
                EXPORT  PPG_Handler               [WEAK]
                EXPORT  TIM_IRQHandler            [WEAK]
                EXPORT  ADC0_IRQHandler           [WEAK]
                EXPORT  ADC1_IRQHandler           [WEAK]
                EXPORT  ADC2_IRQHandler           [WEAK]
                EXPORT  MFT_FRT_IRQHandler        [WEAK]
                EXPORT  MFT_IPC_IRQHandler        [WEAK]
                EXPORT  MFT_OPC_IRQHandler        [WEAK]
                EXPORT  BT_IRQHandler             [WEAK]
                EXPORT  CAN0_IRQHandler           [WEAK]
                EXPORT  CAN1_IRQHandler           [WEAK]
                EXPORT  USBF_Handler              [WEAK]
                EXPORT  USB_Handler               [WEAK]
                EXPORT  DMAC0_Handler             [WEAK]
                EXPORT  DMAC1_Handler             [WEAK]
                EXPORT  DMAC2_Handler             [WEAK]
                EXPORT  DMAC3_Handler             [WEAK]
                EXPORT  DMAC4_Handler             [WEAK]
                EXPORT  DMAC5_Handler             [WEAK]
                EXPORT  DMAC6_Handler             [WEAK]
                EXPORT  DMAC7_Handler             [WEAK]
                EXPORT  DummyHandler              [WEAK]

CSV_Handler
SWDT_Handler
LVD_Handler
MFT_WG_IRQHandler
INT0_7_Handler
INT8_15_Handler
DT_Handler
MFS0RX_IRQHandler
MFS0TX_IRQHandler
MFS1RX_IRQHandler
MFS1TX_IRQHandler
MFS2RX_IRQHandler
MFS2TX_IRQHandler
MFS3RX_IRQHandler
MFS3TX_IRQHandler
MFS4RX_IRQHandler
MFS4TX_IRQHandler
MFS5RX_IRQHandler
MFS5TX_IRQHandler
MFS6RX_IRQHandler
MFS6TX_IRQHandler
MFS7RX_IRQHandler
MFS7TX_IRQHandler
PPG_Handler
TIM_IRQHandler
ADC0_IRQHandler
ADC1_IRQHandler
ADC2_IRQHandler
MFT_FRT_IRQHandler
MFT_IPC_IRQHandler
MFT_OPC_IRQHandler
BT_IRQHandler
CAN0_IRQHandler
CAN1_IRQHandler
USBF_Handler
USB_Handler
DMAC0_Handler
DMAC1_Handler
DMAC2_Handler
DMAC3_Handler
DMAC4_Handler
DMAC5_Handler
DMAC6_Handler
DMAC7_Handler
DummyHandler
                B       .
                ENDP
                ALIGN

; User Initial Stack & Heap

                IF      :DEF:__MICROLIB
                EXPORT  __initial_sp
                EXPORT  __heap_base
                EXPORT  __heap_limit
                ELSE
                IMPORT  __use_two_region_memory
                EXPORT  __user_initial_stackheap
__user_initial_stackheap

                LDR     R0, =  Heap_Mem
                LDR     R1, =(Stack_Mem + Stack_Size)
                LDR     R2, = (Heap_Mem +  Heap_Size)
                LDR     R3, = Stack_Mem
                BX      LR

                ALIGN
                ENDIF

                END