rt-thread/bsp/efm32/Libraries/Device/EnergyMicro/EFM32G/Source/ARM/startup_efm32g.s

;/**************************************************************************//**
; * @file     
; * @brief    CMSIS Core Device Startup File for
; *           Energy Micro 'EFM32G' Device Series
; * @version 3.0.0
; * @date     03. February 2012
; *
; * @note
; * Copyright (C) 2012 ARM Limited. All rights reserved.
; *
; * @par
; * ARM Limited (ARM) is supplying this software for use with Cortex-M 
; * processor based microcontrollers.  This file can be freely distributed 
; * within development tools that are supporting such ARM based processors. 
; *
; * @par
; * 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.
; * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
; * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
; *
; ******************************************************************************/
; Energy Micro release version
; @version INTERNAL
;/*
;//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
;*/

; <h> Stack Configuration
;   <o> Stack Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>

Stack_Size      EQU     0x00000400

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


; <h> Heap Configuration
;   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>

Heap_Size       EQU     0x00000C00

                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, ALIGN=8
                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

                ; External Interrupts

                DCD     DMA_IRQHandler        ; 0: DMA Interrupt
                DCD     GPIO_EVEN_IRQHandler        ; 1: GPIO_EVEN Interrupt
                DCD     TIMER0_IRQHandler        ; 2: TIMER0 Interrupt
                DCD     USART0_RX_IRQHandler        ; 3: USART0_RX Interrupt
                DCD     USART0_TX_IRQHandler        ; 4: USART0_TX Interrupt
                DCD     ACMP0_IRQHandler        ; 5: ACMP0 Interrupt
                DCD     ADC0_IRQHandler        ; 6: ADC0 Interrupt
                DCD     DAC0_IRQHandler        ; 7: DAC0 Interrupt
                DCD     I2C0_IRQHandler        ; 8: I2C0 Interrupt
                DCD     GPIO_ODD_IRQHandler        ; 9: GPIO_ODD Interrupt
                DCD     TIMER1_IRQHandler        ; 10: TIMER1 Interrupt
                DCD     TIMER2_IRQHandler        ; 11: TIMER2 Interrupt
                DCD     USART1_RX_IRQHandler        ; 12: USART1_RX Interrupt
                DCD     USART1_TX_IRQHandler        ; 13: USART1_TX Interrupt
                DCD     USART2_RX_IRQHandler        ; 14: USART2_RX Interrupt
                DCD     USART2_TX_IRQHandler        ; 15: USART2_TX Interrupt
                DCD     UART0_RX_IRQHandler        ; 16: UART0_RX Interrupt
                DCD     UART0_TX_IRQHandler        ; 17: UART0_TX Interrupt
                DCD     LEUART0_IRQHandler        ; 18: LEUART0 Interrupt
                DCD     LEUART1_IRQHandler        ; 19: LEUART1 Interrupt
                DCD     LETIMER0_IRQHandler        ; 20: LETIMER0 Interrupt
                DCD     PCNT0_IRQHandler        ; 21: PCNT0 Interrupt
                DCD     PCNT1_IRQHandler        ; 22: PCNT1 Interrupt
                DCD     PCNT2_IRQHandler        ; 23: PCNT2 Interrupt
                DCD     RTC_IRQHandler        ; 24: RTC Interrupt
                DCD     CMU_IRQHandler        ; 25: CMU Interrupt
                DCD     VCMP_IRQHandler        ; 26: VCMP Interrupt
                DCD     LCD_IRQHandler        ; 27: LCD Interrupt
                DCD     MSC_IRQHandler        ; 28: MSC Interrupt
                DCD     AES_IRQHandler        ; 29: AES Interrupt

__Vectors_End
__Vectors_Size  EQU     __Vectors_End - __Vectors

                AREA    |.text|, CODE, READONLY


; Reset Handler

Reset_Handler   PROC
                EXPORT  Reset_Handler             [WEAK]
                IMPORT  SystemInit
                IMPORT  __main
                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  DMA_IRQHandler        [WEAK]
                EXPORT  GPIO_EVEN_IRQHandler        [WEAK]
                EXPORT  TIMER0_IRQHandler        [WEAK]
                EXPORT  USART0_RX_IRQHandler        [WEAK]
                EXPORT  USART0_TX_IRQHandler        [WEAK]
                EXPORT  ACMP0_IRQHandler        [WEAK]
                EXPORT  ADC0_IRQHandler        [WEAK]
                EXPORT  DAC0_IRQHandler        [WEAK]
                EXPORT  I2C0_IRQHandler        [WEAK]
                EXPORT  GPIO_ODD_IRQHandler        [WEAK]
                EXPORT  TIMER1_IRQHandler        [WEAK]
                EXPORT  TIMER2_IRQHandler        [WEAK]
                EXPORT  USART1_RX_IRQHandler        [WEAK]
                EXPORT  USART1_TX_IRQHandler        [WEAK]
                EXPORT  USART2_RX_IRQHandler        [WEAK]
                EXPORT  USART2_TX_IRQHandler        [WEAK]
                EXPORT  UART0_RX_IRQHandler        [WEAK]
                EXPORT  UART0_TX_IRQHandler        [WEAK]
                EXPORT  LEUART0_IRQHandler        [WEAK]
                EXPORT  LEUART1_IRQHandler        [WEAK]
                EXPORT  LETIMER0_IRQHandler        [WEAK]
                EXPORT  PCNT0_IRQHandler        [WEAK]
                EXPORT  PCNT1_IRQHandler        [WEAK]
                EXPORT  PCNT2_IRQHandler        [WEAK]
                EXPORT  RTC_IRQHandler        [WEAK]
                EXPORT  CMU_IRQHandler        [WEAK]
                EXPORT  VCMP_IRQHandler        [WEAK]
                EXPORT  LCD_IRQHandler        [WEAK]
                EXPORT  MSC_IRQHandler        [WEAK]
                EXPORT  AES_IRQHandler        [WEAK]


DMA_IRQHandler
GPIO_EVEN_IRQHandler
TIMER0_IRQHandler
USART0_RX_IRQHandler
USART0_TX_IRQHandler
ACMP0_IRQHandler
ADC0_IRQHandler
DAC0_IRQHandler
I2C0_IRQHandler
GPIO_ODD_IRQHandler
TIMER1_IRQHandler
TIMER2_IRQHandler
USART1_RX_IRQHandler
USART1_TX_IRQHandler
USART2_RX_IRQHandler
USART2_TX_IRQHandler
UART0_RX_IRQHandler
UART0_TX_IRQHandler
LEUART0_IRQHandler
LEUART1_IRQHandler
LETIMER0_IRQHandler
PCNT0_IRQHandler
PCNT1_IRQHandler
PCNT2_IRQHandler
RTC_IRQHandler
CMU_IRQHandler
VCMP_IRQHandler
LCD_IRQHandler
MSC_IRQHandler
AES_IRQHandler


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

                ALIGN

                ENDIF

                END