You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
253 lines
11 KiB
ArmAsm
253 lines
11 KiB
ArmAsm
#include "FreeRTOSConfig.h"
|
|
;******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
|
|
;* File Name : 71x_vect.s
|
|
;* Author : MCD Application Team
|
|
;* Date First Issued : 16/05/2003
|
|
;* Description : This file used to initialize the exception and IRQ
|
|
;* vectors, and to enter/return to/from exceptions handlers.
|
|
;*******************************************************************************
|
|
;* History:
|
|
;* 13/01/2006 : V3.1
|
|
;* 24/05/2005 : V3.0
|
|
;* 30/11/2004 : V2.0
|
|
;* 14/07/2004 : V1.3
|
|
;* 01/01/2004 : V1.2
|
|
;*******************************************************************************
|
|
; THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
|
|
; CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
|
|
; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
|
|
; OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
|
|
; OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
|
|
; CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
|
;*******************************************************************************/
|
|
|
|
MODULE ?RESET
|
|
SECTION .intvec:CODE(2)
|
|
CODE32
|
|
|
|
EIC_base_addr EQU 0xFFFFF800; EIC base address.
|
|
CICR_off_addr EQU 0x04 ; Current Interrupt Channel Register.
|
|
IVR_off_addr EQU 0x18 ; Interrupt Vector Register.
|
|
IPR_off_addr EQU 0x40 ; Interrupt Pending Register.
|
|
|
|
|
|
;*******************************************************************************
|
|
; Import the __iar_program_start address from 71x_init.s
|
|
;*******************************************************************************
|
|
|
|
IMPORT __iar_program_start
|
|
|
|
;*******************************************************************************
|
|
; Import exception handlers
|
|
;*******************************************************************************
|
|
|
|
IMPORT Undefined_Handler
|
|
IMPORT Prefetch_Handler
|
|
IMPORT Abort_Handler
|
|
IMPORT FIQ_Handler
|
|
|
|
;*******************************************************************************
|
|
; Import IRQ handlers from 71x_it.c
|
|
;*******************************************************************************
|
|
|
|
IMPORT Default_Handler
|
|
IMPORT vPortYieldProcessor
|
|
IMPORT vSerialISREntry
|
|
IMPORT vPortPreemptiveTickISR
|
|
IMPORT vPortNonPreemptiveTick
|
|
|
|
;*******************************************************************************
|
|
; Export Peripherals IRQ handlers table address
|
|
;*******************************************************************************
|
|
|
|
EXPORT T0TIMI_Addr
|
|
|
|
;*******************************************************************************
|
|
; Exception vectors
|
|
;*******************************************************************************
|
|
IVR_ADDR DEFINE 0xFFFFF818
|
|
|
|
LDR PC, Reset_Addr
|
|
LDR PC, Undefined_Addr
|
|
LDR PC, SWI_Addr
|
|
LDR PC, Prefetch_Addr
|
|
LDR PC, Abort_Addr
|
|
NOP ; Reserved vector
|
|
LDR PC, =IVR_ADDR
|
|
LDR PC, FIQ_Addr
|
|
|
|
;*******************************************************************************
|
|
; Exception handlers address table
|
|
;*******************************************************************************
|
|
|
|
Reset_Addr DCD __iar_program_start
|
|
Undefined_Addr DCD UndefinedHandler
|
|
SWI_Addr DCD vPortYieldProcessor
|
|
Prefetch_Addr DCD PrefetchAbortHandler
|
|
Abort_Addr DCD DataAbortHandler
|
|
DCD 0 ; Reserved vector
|
|
IRQ_Addr DCD 0 ; Direct vectors are used. See the STR75x demo for an alternative implementation
|
|
FIQ_Addr DCD FIQHandler
|
|
|
|
;*******************************************************************************
|
|
; Peripherals IRQ handlers address table
|
|
;*******************************************************************************
|
|
|
|
T0TIMI_Addr DCD Default_Handler
|
|
FLASH_Addr DCD Default_Handler
|
|
RCCU_Addr DCD Default_Handler
|
|
RTC_Addr DCD Default_Handler
|
|
#if configUSE_PREEMPTION == 0
|
|
WDG_Addr DCD vPortNonPreemptiveTick ; Tick ISR if the cooperative scheduler is used.
|
|
#else
|
|
WDG_Addr DCD vPortPreemptiveTickISR ; Tick ISR if the preemptive scheduler is used.
|
|
#endif
|
|
XTI_Addr DCD Default_Handler
|
|
USBHP_Addr DCD Default_Handler
|
|
I2C0ITERR_Addr DCD Default_Handler
|
|
I2C1ITERR_ADDR DCD Default_Handler
|
|
UART0_Addr DCD vSerialISREntry
|
|
UART1_Addr DCD Default_Handler
|
|
UART2_ADDR DCD Default_Handler
|
|
UART3_ADDR DCD Default_Handler
|
|
BSPI0_ADDR DCD Default_Handler
|
|
BSPI1_Addr DCD Default_Handler
|
|
I2C0_Addr DCD Default_Handler
|
|
I2C1_Addr DCD Default_Handler
|
|
CAN_Addr DCD Default_Handler
|
|
ADC12_Addr DCD Default_Handler
|
|
T1TIMI_Addr DCD Default_Handler
|
|
T2TIMI_Addr DCD Default_Handler
|
|
T3TIMI_Addr DCD Default_Handler
|
|
DCD 0 ; reserved
|
|
DCD 0 ; reserved
|
|
DCD 0 ; reserved
|
|
HDLC_Addr DCD Default_Handler
|
|
USBLP_Addr DCD Default_Handler
|
|
DCD 0 ; reserved
|
|
DCD 0 ; reserved
|
|
T0TOI_Addr DCD Default_Handler
|
|
T0OC1_Addr DCD Default_Handler
|
|
T0OC2_Addr DCD Default_Handler
|
|
|
|
|
|
;*******************************************************************************
|
|
; Exception Handlers
|
|
;*******************************************************************************
|
|
|
|
;*******************************************************************************
|
|
;* Macro Name : SaveContext
|
|
;* Description : This macro used to save the context before entering
|
|
; an exception handler.
|
|
;* Input : The range of registers to store.
|
|
;* Output : none
|
|
;*******************************************************************************
|
|
|
|
SaveContext MACRO reg1,reg2
|
|
|
|
STMFD sp!,{reg1-reg2,lr} ; Save The workspace plus the current return
|
|
; address lr_ mode into the stack.
|
|
MRS r1,spsr ; Save the spsr_mode into r1.
|
|
STMFD sp!,{r1} ; Save spsr.
|
|
ENDM
|
|
|
|
;*******************************************************************************
|
|
;* Macro Name : RestoreContext
|
|
;* Description : This macro used to restore the context to return from
|
|
; an exception handler and continue the program execution.
|
|
;* Input : The range of registers to restore.
|
|
;* Output : none
|
|
;*******************************************************************************
|
|
|
|
RestoreContext MACRO reg1,reg2
|
|
|
|
LDMFD sp!,{r1} ; Restore the saved spsr_mode into r1.
|
|
MSR spsr_cxsf,r1 ; Restore spsr_mode.
|
|
LDMFD sp!,{reg1-reg2,pc}^; Return to the instruction following...
|
|
; ...the exception interrupt.
|
|
ENDM
|
|
|
|
;*******************************************************************************
|
|
;* Function Name : UndefinedHandler
|
|
;* Description : This function called when undefined instruction
|
|
; exception is entered.
|
|
;* Input : none
|
|
;* Output : none
|
|
;*******************************************************************************
|
|
UndefinedHandler
|
|
SaveContext r0,r12 ; Save the workspace plus the current
|
|
; return address lr_ und and spsr_und.
|
|
ldr r0,=Undefined_Handler
|
|
ldr lr,=Undefined_Handler_end
|
|
bx r0 ; Branch to Undefined_Handler
|
|
Undefined_Handler_end:
|
|
RestoreContext r0,r12 ; Return to the instruction following...
|
|
; ...the undefined instruction.
|
|
|
|
|
|
;*******************************************************************************
|
|
;* Function Name : PrefetchAbortHandler
|
|
;* Description : This function called when Prefetch Abort
|
|
; exception is entered.
|
|
;* Input : none
|
|
;* Output : none
|
|
;*******************************************************************************
|
|
|
|
PrefetchAbortHandler
|
|
SUB lr,lr,#4 ; Update the link register.
|
|
SaveContext r0,r12 ; Save the workspace plus the current
|
|
; return address lr_abt and spsr_abt.
|
|
ldr r0,=Prefetch_Handler
|
|
ldr lr,=Prefetch_Handler_end
|
|
|
|
bx r0 ; Branch to Prefetch_Handler.
|
|
Prefetch_Handler_end:
|
|
RestoreContext r0,r12 ; Return to the instruction following that...
|
|
; ...has generated the prefetch abort exception.
|
|
|
|
;*******************************************************************************
|
|
;* Function Name : DataAbortHandler
|
|
;* Description : This function is called when Data Abort
|
|
; exception is entered.
|
|
;* Input : none
|
|
;* Output : none
|
|
;*******************************************************************************
|
|
|
|
DataAbortHandler
|
|
SUB lr,lr,#8 ; Update the link register.
|
|
SaveContext r0,r12 ; Save the workspace plus the current
|
|
; return address lr_ abt and spsr_abt.
|
|
ldr r0,=Abort_Handler
|
|
ldr lr,=Abort_Handler_end
|
|
|
|
bx r0 ; Branch to Abort_Handler.
|
|
Abort_Handler_end:
|
|
RestoreContext r0,r12 ; Return to the instruction following that...
|
|
; ...has generated the data abort exception.
|
|
|
|
;*******************************************************************************
|
|
;* Function Name : FIQHandler
|
|
;* Description : This function is called when FIQ
|
|
; exception is entered.
|
|
;* Input : none
|
|
;* Output : none
|
|
;*******************************************************************************
|
|
|
|
FIQHandler
|
|
SUB lr,lr,#4 ; Update the link register.
|
|
SaveContext r0,r7 ; Save the workspace plus the current
|
|
; return address lr_ fiq and spsr_fiq.
|
|
ldr r0,=FIQ_Handler
|
|
ldr lr,=FIQ_Handler_end
|
|
|
|
bx r0 ; Branch to FIQ_Handler.
|
|
FIQ_Handler_end:
|
|
RestoreContext r0,r7 ; Restore the context and return to the...
|
|
; ...program execution.
|
|
|
|
|
|
|
|
LTORG
|
|
|
|
END
|
|
;******************* (C) COPYRIGHT 2003 STMicroelectronics *****END OF FILE****
|