rt-thread-official/libcpu/arm/fm3/start_iar.S

;/*
; * File      : context_iar.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
; * 2009-01-17     Bernard      first version
; * 2009-09-27     Bernard      add protect when contex switch occurs
; */

#include "rtconfig.h"

	MODULE	?cstartup

;; ICODE is the same segment as cstartup. By placing __low_level_init
;; in the same segment, we make sure it can be reached with BL. */

	SECTION	CSTACK:DATA:NOROOT(3)
	SECTION	.icode:CODE:NOROOT(2)

	IMPORT	rt_hw_hard_fault
	IMPORT	rt_hw_pend_sv
	IMPORT	rt_hw_timer_handler
#ifdef RT_USING_UART2   
	IMPORT	MFS2RX_IRQHandler
#endif
	PUBLIC	__low_level_init

	PUBWEAK SystemInit_ExtMemCtl
	SECTION .text:CODE:REORDER(2)
	THUMB
SystemInit_ExtMemCtl
	BX LR

__low_level_init:
	;;  Initialize hardware.
	LDR	R0, = SystemInit_ExtMemCtl ; initialize external memory controller
	MOV	R11, LR
	BLX	R0
	LDR	R1, =sfe(CSTACK)        ; restore original stack pointer
	MSR	MSP, R1
	MOV	R0,#1
	;; Return with BX to be independent of mode of caller
	BX	R11

	;; Forward declaration of sections.
	SECTION .intvec:CODE:NOROOT(2)

	EXTERN  __iar_program_start
	PUBLIC  __vector_table

	DATA
__vector_table
	DCD     sfe(CSTACK)
	DCD     __iar_program_start
	
	DCD     NMI_Handler               ; NMI Handler
	DCD     rt_hw_hard_fault          ; 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     rt_hw_pend_sv             ; PendSV Handler
	DCD     rt_hw_timer_handler       ; SysTick Handler
	
	; External Interrupts
	DCD     CSV_IRQHandler            ; Clock Super Visor
	DCD     SWDT_IRQHandler           ; Software Watchdog Timer
	DCD     LVD_IRQHandler            ; Low Voltage Detector
	DCD     WFG_IRQHandler            ; Wave Form Generator
	DCD     EXINT0_7_IRQHandler       ; External Interrupt Request ch.0 to ch.7
	DCD     EXINT8_15_IRQHandler      ; External Interrupt Request ch.8 to ch.15
	DCD     DTIM_QDU_IRQHandler       ; Dual Timer / Quad Decoder
	DCD     MFS0RX_IRQHandler         ; MultiFunction Serial ch.0
	DCD     MFS0TX_IRQHandler         ; MultiFunction Serial ch.0
	DCD     MFS1RX_IRQHandler         ; MultiFunction Serial ch.1
	DCD     MFS1TX_IRQHandler         ; MultiFunction Serial ch.1
#ifdef RT_USING_UART2        
	DCD     MFS2RX_IRQHandler         ; MultiFunction Serial ch.2
#else
	DCD     NULL_IRQHandler           ; MultiFunction Serial ch.2
#endif
	DCD     MFS2TX_IRQHandler         ; MultiFunction Serial ch.2
	DCD     MFS3RX_IRQHandler         ; MultiFunction Serial ch.3
	DCD     MFS3TX_IRQHandler         ; MultiFunction Serial ch.3
	DCD     MFS4RX_IRQHandler         ; MultiFunction Serial ch.4
	DCD     MFS4TX_IRQHandler         ; MultiFunction Serial ch.4
	DCD     MFS5RX_IRQHandler         ; MultiFunction Serial ch.5
	DCD     MFS5TX_IRQHandler         ; MultiFunction Serial ch.5
	DCD     MFS6RX_IRQHandler         ; MultiFunction Serial ch.6
	DCD     MFS6TX_IRQHandler         ; MultiFunction Serial ch.6
	DCD     MFS7RX_IRQHandler         ; MultiFunction Serial ch.7
	DCD     MFS7TX_IRQHandler         ; MultiFunction Serial ch.7
	DCD     PPG_IRQHandler            ; PPG
	DCD     OSC_PLL_WC_IRQHandler     ; OSC / PLL / Watch Counter
	DCD     ADC0_IRQHandler           ; ADC0
	DCD     ADC1_IRQHandler           ; ADC1
	DCD     ADC2_IRQHandler           ; ADC2
	DCD     FRTIM_IRQHandler          ; Free-run Timer
	DCD     INCAP_IRQHandler          ; Input Capture
	DCD     OUTCOMP_IRQHandler        ; Output Compare
	DCD     BTIM_IRQHandler           ; Base Timer ch.0 to ch.7
	DCD     CAN0_IRQHandler           ; CAN ch.0
	DCD     CAN1_IRQHandler           ; CAN ch.1
	DCD     USBF_IRQHandler           ; USB Function
	DCD     USBF_USBH_IRQHandler      ; USB Function / USB HOST
	DCD     RESERVED_1_IRQHandler     ; Reserved_1
	DCD     RESERVED_2_IRQHandler     ; Reserved_2
	DCD     DMAC0_IRQHandler          ; DMAC ch.0
	DCD     DMAC1_IRQHandler          ; DMAC ch.1
	DCD     DMAC2_IRQHandler          ; DMAC ch.2
	DCD     DMAC3_IRQHandler          ; DMAC ch.3
	DCD     DMAC4_IRQHandler          ; DMAC ch.4
	DCD     DMAC5_IRQHandler          ; DMAC ch.5
	DCD     DMAC6_IRQHandler          ; DMAC ch.6
	DCD     DMAC7_IRQHandler          ; DMAC ch.7
	DCD     RESERVED_3_IRQHandler     ; Reserved_3
	DCD     RESERVED_4_IRQHandler     ; Reserved_4

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Default interrupt handlers.
;;
	THUMB

	PUBWEAK NMI_Handler
	SECTION .text:CODE:REORDER(1)
NMI_Handler
	B NMI_Handler
	PUBWEAK MemManage_Handler
	SECTION .text:CODE:REORDER(1)
MemManage_Handler
	B MemManage_Handler
	PUBWEAK BusFault_Handler
	SECTION .text:CODE:REORDER(1)
BusFault_Handler
	B BusFault_Handler
	PUBWEAK UsageFault_Handler
	SECTION .text:CODE:REORDER(1)
UsageFault_Handler
	B UsageFault_Handler
	PUBWEAK SVC_Handler
	SECTION .text:CODE:REORDER(1)
SVC_Handler
	B SVC_Handler
	PUBWEAK DebugMon_Handler
	SECTION .text:CODE:REORDER(1)
DebugMon_Handler
	B DebugMon_Handler
	PUBWEAK CSV_IRQHandler
	SECTION .text:CODE:REORDER(1)
CSV_IRQHandler
	B CSV_IRQHandler
	PUBWEAK SWDT_IRQHandler
	SECTION .text:CODE:REORDER(1)
SWDT_IRQHandler
	B SWDT_IRQHandler
	PUBWEAK LVD_IRQHandler
	SECTION .text:CODE:REORDER(1)
LVD_IRQHandler
	B LVD_IRQHandler
	PUBWEAK WFG_IRQHandler
	SECTION .text:CODE:REORDER(1)
WFG_IRQHandler
	B WFG_IRQHandler
	PUBWEAK EXINT0_7_IRQHandler
	SECTION .text:CODE:REORDER(1)
EXINT0_7_IRQHandler
	B EXINT0_7_IRQHandler
	PUBWEAK EXINT8_15_IRQHandler
	SECTION .text:CODE:REORDER(1)
EXINT8_15_IRQHandler
	B EXINT8_15_IRQHandler
	PUBWEAK DTIM_QDU_IRQHandler
	SECTION .text:CODE:REORDER(1)
DTIM_QDU_IRQHandler
	B DTIM_QDU_IRQHandler
	PUBWEAK MFS0RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS0RX_IRQHandler
	B MFS0RX_IRQHandler
	PUBWEAK MFS0TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS0TX_IRQHandler
	B MFS0TX_IRQHandler
	PUBWEAK MFS1RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS1RX_IRQHandler
	B MFS1RX_IRQHandler
	PUBWEAK MFS1TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS1TX_IRQHandler
	B MFS1TX_IRQHandler
	PUBWEAK NULL_IRQHandler
	SECTION .text:CODE:REORDER(1)
NULL_IRQHandler
	B NULL_IRQHandler
	PUBWEAK MFS2TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS2TX_IRQHandler
	B MFS2TX_IRQHandler
	PUBWEAK MFS3RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS3RX_IRQHandler
	B MFS3RX_IRQHandler
	PUBWEAK MFS3TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS3TX_IRQHandler
	B MFS3TX_IRQHandler
	PUBWEAK MFS4RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS4RX_IRQHandler
	B MFS4RX_IRQHandler
	PUBWEAK MFS4TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS4TX_IRQHandler
	B MFS4TX_IRQHandler
	PUBWEAK MFS5RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS5RX_IRQHandler
	B MFS5RX_IRQHandler
	PUBWEAK MFS5TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS5TX_IRQHandler
	B MFS5TX_IRQHandler
	PUBWEAK MFS6RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS6RX_IRQHandler
	B MFS6RX_IRQHandler
	PUBWEAK MFS6TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS6TX_IRQHandler
	B MFS6TX_IRQHandler
	PUBWEAK MFS7RX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS7RX_IRQHandler
	B MFS7RX_IRQHandler
	PUBWEAK MFS7TX_IRQHandler
	SECTION .text:CODE:REORDER(1)
MFS7TX_IRQHandler
	B MFS7TX_IRQHandler
	PUBWEAK PPG_IRQHandler
	SECTION .text:CODE:REORDER(1)
PPG_IRQHandler
	B PPG_IRQHandler
	PUBWEAK OSC_PLL_WC_IRQHandler
	SECTION .text:CODE:REORDER(1)
OSC_PLL_WC_IRQHandler
	B OSC_PLL_WC_IRQHandler
	PUBWEAK ADC0_IRQHandler
	SECTION .text:CODE:REORDER(1)
ADC0_IRQHandler
	B ADC0_IRQHandler
	PUBWEAK ADC1_IRQHandler
	SECTION .text:CODE:REORDER(1)
ADC1_IRQHandler
	B ADC1_IRQHandler
	PUBWEAK ADC2_IRQHandler
	SECTION .text:CODE:REORDER(1)
ADC2_IRQHandler
	B ADC2_IRQHandler
	PUBWEAK FRTIM_IRQHandler
	SECTION .text:CODE:REORDER(1)
FRTIM_IRQHandler
	B FRTIM_IRQHandler
	PUBWEAK INCAP_IRQHandler
	SECTION .text:CODE:REORDER(1)
INCAP_IRQHandler
	B INCAP_IRQHandler
	PUBWEAK OUTCOMP_IRQHandler
	SECTION .text:CODE:REORDER(1)
OUTCOMP_IRQHandler
	B OUTCOMP_IRQHandler
	PUBWEAK BTIM_IRQHandler
	SECTION .text:CODE:REORDER(1)
BTIM_IRQHandler
	B BTIM_IRQHandler
	PUBWEAK CAN0_IRQHandler
	SECTION .text:CODE:REORDER(1)
CAN0_IRQHandler
	B CAN0_IRQHandler
	PUBWEAK CAN1_IRQHandler
	SECTION .text:CODE:REORDER(1)
CAN1_IRQHandler
	B CAN1_IRQHandler
	PUBWEAK USBF_IRQHandler
	SECTION .text:CODE:REORDER(1)
USBF_IRQHandler
	B USBF_IRQHandler
	PUBWEAK USBF_USBH_IRQHandler
	SECTION .text:CODE:REORDER(1)
USBF_USBH_IRQHandler
	B USBF_USBH_IRQHandler
	PUBWEAK RESERVED_1_IRQHandler
	SECTION .text:CODE:REORDER(1)
RESERVED_1_IRQHandler
	B RESERVED_1_IRQHandler
	PUBWEAK RESERVED_2_IRQHandler
	SECTION .text:CODE:REORDER(1)
RESERVED_2_IRQHandler
	B RESERVED_2_IRQHandler
	PUBWEAK DMAC0_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC0_IRQHandler
	B DMAC0_IRQHandler
	PUBWEAK DMAC1_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC1_IRQHandler
	B DMAC1_IRQHandler
	PUBWEAK DMAC2_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC2_IRQHandler
	B DMAC2_IRQHandler
	PUBWEAK DMAC3_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC3_IRQHandler
	B DMAC3_IRQHandler
	PUBWEAK DMAC4_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC4_IRQHandler
	B DMAC4_IRQHandler
	PUBWEAK DMAC5_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC5_IRQHandler
	B DMAC5_IRQHandler
	PUBWEAK DMAC6_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC6_IRQHandler
	B DMAC6_IRQHandler
	PUBWEAK DMAC7_IRQHandler
	SECTION .text:CODE:REORDER(1)
DMAC7_IRQHandler
	B DMAC7_IRQHandler
	PUBWEAK RESERVED_3_IRQHandler
	SECTION .text:CODE:REORDER(1)
RESERVED_3_IRQHandler
	B RESERVED_3_IRQHandler
	PUBWEAK RESERVED_4_IRQHandler
	SECTION .text:CODE:REORDER(1)
RESERVED_4_IRQHandler
	B RESERVED_4_IRQHandler	

	END