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71x_vect_ucos.s
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上传日期：2022-07-18
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微处理器开发
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C/C++
- ;******************** (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:
- ;* 01/01/2004 : V1.2
- ;* 14/07/2004 : V1.3
- ;*******************************************************************************
- PRESERVE8
- AREA Vect, CODE, READONLY
- 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.
- ENTRY
- ;*******************************************************************************
- ; Import the Reset_Handler address from 71x_init.s
- ;*******************************************************************************
- IMPORT Reset_Handler
- ;*******************************************************************************
- ; Import exception handlers
- ;*******************************************************************************
- IMPORT Undefined_Handler
- IMPORT SWI_Handler
- IMPORT Prefetch_Handler
- IMPORT Abort_Handler
- IMPORT OS_CPU_IRQ_ISR
- IMPORT OS_CPU_FIQ_ISR
- ;*******************************************************************************
- ; Import IRQ handlers from 71x_it.c
- ;*******************************************************************************
- IMPORT T0TIMI_IRQHandler
- IMPORT FLASH_IRQHandler
- IMPORT RCCU_IRQHandler
- IMPORT RTC_IRQHandler
- IMPORT WDG_IRQHandler
- IMPORT XTI_IRQHandler
- IMPORT USBHP_IRQHandler
- IMPORT I2C0ITERR_IRQHandler
- IMPORT I2C1ITERR_IRQHandler
- IMPORT UART0_IRQHandler
- IMPORT UART1_IRQHandler
- IMPORT UART2_IRQHandler
- IMPORT UART3_IRQHandler
- IMPORT BSPI0_IRQHandler
- IMPORT BSPI1_IRQHandler
- IMPORT I2C0_IRQHandler
- IMPORT I2C1_IRQHandler
- IMPORT CAN_IRQHandler
- IMPORT ADC12_IRQHandler
- IMPORT T1TIMI_IRQHandler
- IMPORT T2TIMI_IRQHandler
- IMPORT T3TIMI_IRQHandler
- IMPORT HDLC_IRQHandler
- IMPORT USBLP_IRQHandler
- IMPORT T0TOI_IRQHandler
- IMPORT T0OC1_IRQHandler
- IMPORT T0OC2_IRQHandler
- ;*******************************************************************************
- ; Export Peripherals IRQ handlers table address
- ;*******************************************************************************
- EXPORT T0TIMI_Addr
- ;*******************************************************************************
- ;
- ;*******************************************************************************
- EXPORT vector_begin
- EXPORT vector_end
- vector_begin
- ;*******************************************************************************
- ; Exception vectors
- ;*******************************************************************************
- 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, IRQ_Addr
- LDR PC, FIQ_Addr
- ;*******************************************************************************
- ; Exception handlers address table
- ;*******************************************************************************
- Reset_Addr DCD Reset_Handler
- Undefined_Addr DCD UndefinedHandler
- SWI_Addr DCD SWIHandler
- Prefetch_Addr DCD PrefetchAbortHandler
- Abort_Addr DCD DataAbortHandler
- DCD 0 ; Reserved vector
- IRQ_Addr DCD OS_CPU_IRQ_ISR
- FIQ_Addr DCD OS_CPU_FIQ_ISR
- ;*******************************************************************************
- ; Peripherals IRQ handlers address table
- ;*******************************************************************************
- T0TIMI_Addr DCD T0TIMIIRQHandler
- FLASH_Addr DCD FLASHIRQHandler
- RCCU_Addr DCD RCCUIRQHandler
- RTC_Addr DCD RTCIRQHandler
- WDG_Addr DCD WDGIRQHandler
- XTI_Addr DCD XTIIRQHandler
- USBHP_Addr DCD USBHPIRQHandler
- I2C0ITERR_Addr DCD I2C0ITERRIRQHandler
- I2C1ITERR_ADDR DCD I2C1ITERRIRQHandler
- UART0_Addr DCD UART0IRQHandler
- UART1_Addr DCD UART1IRQHandler
- UART2_ADDR DCD UART2IRQHandler
- UART3_ADDR DCD UART3IRQHandler
- BSPI0_ADDR DCD BSPI0IRQHandler
- BSPI1_Addr DCD BSPI1IRQHandler
- I2C0_Addr DCD I2C0IRQHandler
- I2C1_Addr DCD I2C1IRQHandler
- CAN_Addr DCD CANIRQHandler
- ADC12_Addr DCD ADC12IRQHandler
- T1TIMI_Addr DCD T1TIMIIRQHandler
- T2TIMI_Addr DCD T2TIMIIRQHandler
- T3TIMI_Addr DCD T3TIMIIRQHandler
- DCD 0 ; reserved
- DCD 0 ; reserved
- DCD 0 ; reserved
- HDLC_Addr DCD HDLCIRQHandler
- USBLP_Addr DCD USBLPIRQHandler
- DCD 0 ; reserved
- DCD 0 ; reserved
- T0TOI_Addr DCD T0TOIIRQHandler
- T0OC1_Addr DCD T0OC1IRQHandler
- T0OC2_Addr DCD T0OC2IRQHandler
- vector_end
- ;*******************************************************************************
- ; 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
- ;*******************************************************************************
- MACRO
- SaveContext $reg1,$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.
- MEND
- ;*******************************************************************************
- ;* 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
- ;*******************************************************************************
- MACRO
- RestoreContext $reg1,$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.
- MEND
- ;*******************************************************************************
- ;* Function Name : UndefinedHandler
- ;* Description : This function called when undefined instruction
- ; exception is entered.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- UndefinedHandler
- SaveContext r0,r11 ; Save the workspace plus the current
- ; return address lr_ und and spsr_und.
- BL Undefined_Handler; Branch to Undefined_Handler.
- RestoreContext r0,r11 ; Return to the instruction following...
- ; ...the undefined instruction.
- ;*******************************************************************************
- ;* Function Name : SWIHandler
- ;* Description : This function called when SWI instruction executed.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- SWIHandler
- SaveContext r0,r11 ; Save the workspace plus the current
- ; return address lr_ svc and spsr_svc.
- BL SWI_Handler ; Branch to SWI_Handler.
- RestoreContext r0,r11 ; Return to the instruction following...
- ; ...the SWI 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,r11 ; Save the workspace plus the current
- ; return address lr_abt and spsr_abt.
- BL Prefetch_Handler; Branch to Prefetch_Handler.
- RestoreContext r0,r11 ; 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,r11 ; Save the workspace plus the current
- ; return address lr_ abt and spsr_abt.
- BL Abort_Handler ; Branch to Abort_Handler.
- RestoreContext r0,r11 ; Return to the instruction following that...
- ; ...has generated the data abort exception.
- ;*******************************************************************************
- ;* Macro Name : IRQ_to_SYS
- ;* Description : This macro used to switch form IRQ mode to SYS mode
- ;* Input : none.
- ;* Output : none
- ;*******************************************************************************
- MACRO
- IRQ_to_SYS
- MSR cpsr_c,#0x1F ; Switch to SYS mode
- STMFD sp!,{lr} ; Save the link register.
- MEND
- ;*******************************************************************************
- ;* Macro Name : SYS_to_IRQ
- ;* Description : This macro used to switch from SYS mode to IRQ mode
- ; then to return to IRQHnadler routine.
- ;* Input : none.
- ;* Output : none.
- ;*******************************************************************************
- MACRO
- SYS_to_IRQ
- LDMFD sp!,{lr} ; Restore the link register.
- MSR cpsr_c,#0xD2 ; Switch to IRQ mode.
- MOV pc,lr ; Return to IRQHandler routine to clear the
- ; pending bit.
- MEND
- ;*******************************************************************************
- ;* Function Name : T0TIMIIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T0TIMI_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T0TIMI_IRQHandler function termination.
- ;* Input : none.
- ;* Output : none.
- ;*******************************************************************************
- T0TIMIIRQHandler
- IRQ_to_SYS
- BL T0TIMI_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : FLASHIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the FLASH_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; FLASH_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- FLASHIRQHandler
- IRQ_to_SYS
- BL FLASH_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : RCCUIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the RCCU_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; RCCU_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- RCCUIRQHandler
- IRQ_to_SYS
- BL RCCU_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : RTCIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the RTC_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; RTC_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- RTCIRQHandler
- IRQ_to_SYS
- BL RTC_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : WDGIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the WDG_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; WDG_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- WDGIRQHandler
- IRQ_to_SYS
- BL WDG_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : XTIIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the XTI_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; XTI_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- XTIIRQHandler
- IRQ_to_SYS
- BL XTI_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : USBHPIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the USBHP_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; USBHP_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- USBHPIRQHandler
- IRQ_to_SYS
- BL USBHP_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : I2C0ITERRIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the I2C0ITERR_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; I2C0ITERR_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- I2C0ITERRIRQHandler
- IRQ_to_SYS
- BL I2C0ITERR_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : I2C1ITERRIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the I2C1ITERR_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; I2C1ITERR_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- I2C1ITERRIRQHandler
- IRQ_to_SYS
- BL I2C1ITERR_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : UART0IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the UART0_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; UART0_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- UART0IRQHandler
- IRQ_to_SYS
- BL UART0_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : UART1IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the UART1_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; UART1_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- UART1IRQHandler
- IRQ_to_SYS
- BL UART1_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : UART2IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the UART2_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; UART2_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- UART2IRQHandler
- IRQ_to_SYS
- BL UART2_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : UART3IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the UART3_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; UART3_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- UART3IRQHandler
- IRQ_to_SYS
- BL UART3_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : BSPI0IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the BSPI0_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; BSPI0_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- BSPI0IRQHandler
- IRQ_to_SYS
- BL BSPI0_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : BSPI1IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the BSPI1_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; BSPI1_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- BSPI1IRQHandler
- IRQ_to_SYS
- BL BSPI1_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : I2C0IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the I2C0_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; I2C0_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- I2C0IRQHandler
- IRQ_to_SYS
- BL I2C0_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : I2C1IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the I2C1_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; I2C1_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- I2C1IRQHandler
- IRQ_to_SYS
- BL I2C1_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : CANIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the CAN_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; CAN_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- CANIRQHandler
- IRQ_to_SYS
- BL CAN_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : ADC12IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the ADC12_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; ADC12_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- ADC12IRQHandler
- IRQ_to_SYS
- BL ADC12_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : T1TIMIIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T1TIMI_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T1TIMI_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- T1TIMIIRQHandler
- IRQ_to_SYS
- BL T1TIMI_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : T2TIMIIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T2TIMI_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T2TIMI_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- T2TIMIIRQHandler
- IRQ_to_SYS
- BL T2TIMI_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : T3TIMIIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T3TIMI_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T3TIMI_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- T3TIMIIRQHandler
- IRQ_to_SYS
- BL T3TIMI_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : HDLCIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the HDLC_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; HDLC_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- HDLCIRQHandler
- IRQ_to_SYS
- BL HDLC_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : USBLPIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the USBLP_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; USBLP_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- USBLPIRQHandler
- IRQ_to_SYS
- BL USBLP_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : T0TOIIRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T0TOI_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T0TOI_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- T0TOIIRQHandler
- IRQ_to_SYS
- BL T0TOI_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : T0OC1IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T0OC1_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T0OC1_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- T0OC1IRQHandler
- IRQ_to_SYS
- BL T0OC1_IRQHandler
- SYS_to_IRQ
- ;*******************************************************************************
- ;* Function Name : T0OC2IRQHandler
- ;* Description : This function used to switch to SYS mode before entering
- ; the T0OC2_IRQHandler function located in 71x_it.c.
- ; Then to return to IRQ mode after the
- ; T0OC2_IRQHandler function termination.
- ;* Input : none
- ;* Output : none
- ;*******************************************************************************
- T0OC2IRQHandler
- IRQ_to_SYS
- BL T0OC2_IRQHandler
- SYS_to_IRQ
- LTORG
- END
- ;******************* (C) COPYRIGHT 2003 STMicroelectronics *****END OF FILE****
