startup_psoc6_02_cm0plus.s

;/**************************************************************************//**
; * @file     startup_psoc6_02_cm0plus.s
; * @brief    CMSIS Core Device Startup File for
; *           ARMCM0plus Device Series
; * @version  V5.00
; * @date     02. March 2016
; ******************************************************************************/
;/*
; * Copyright (c) 2009-2016 ARM Limited. All rights reserved.
; *
; * SPDX-License-Identifier: Apache-2.0
; *
; * Licensed under the Apache License, Version 2.0 (the License); you may
; * not use this file except in compliance with the License.
; * You may obtain a copy of the License at
; *
; * www.apache.org/licenses/LICENSE-2.0
; *
; * Unless required by applicable law or agreed to in writing, software
; * distributed under the License is distributed on an AS IS BASIS, WITHOUT
; * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
; * See the License for the specific language governing permissions and
; * limitations under the License.
; */

                PRESERVE8
                THUMB

; Vector Table Mapped to Address 0 at Reset

                AREA    RESET, DATA, READONLY
                EXPORT  __Vectors
                EXPORT  __Vectors_End
                EXPORT  __Vectors_Size

                IMPORT |Image$$ARM_LIB_STACK$$ZI$$Base|
                IMPORT |Image$$ARM_LIB_STACK$$ZI$$Length|
                
__Vectors       DCD    |Image$$ARM_LIB_STACK$$ZI$$Base| + |Image$$ARM_LIB_STACK$$ZI$$Length| ; Top of Stack

                DCD     Reset_Handler             ; Reset Handler

                DCD     0x0000000D                ; NMI Handler located at ROM code
                DCD     HardFault_Handler         ; Hard Fault Handler
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     SVC_Handler               ; SVCall Handler
                DCD     0                         ; Reserved
                DCD     0                         ; Reserved
                DCD     PendSV_Handler            ; PendSV Handler
                DCD     SysTick_Handler           ; SysTick Handler

                ; External interrupts                           Description
                DCD     NvicMux0_IRQHandler                   ; CPU User Interrupt #0 
                DCD     NvicMux1_IRQHandler                   ; CPU User Interrupt #1 
                DCD     NvicMux2_IRQHandler                   ; CPU User Interrupt #2 
                DCD     NvicMux3_IRQHandler                   ; CPU User Interrupt #3 
                DCD     NvicMux4_IRQHandler                   ; CPU User Interrupt #4 
                DCD     NvicMux5_IRQHandler                   ; CPU User Interrupt #5 
                DCD     NvicMux6_IRQHandler                   ; CPU User Interrupt #6 
                DCD     NvicMux7_IRQHandler                   ; CPU User Interrupt #7 
                DCD     Internal0_IRQHandler                  ; Internal SW Interrupt #0 
                DCD     Internal1_IRQHandler                  ; Internal SW Interrupt #1 
                DCD     Internal2_IRQHandler                  ; Internal SW Interrupt #2 
                DCD     Internal3_IRQHandler                  ; Internal SW Interrupt #3 
                DCD     Internal4_IRQHandler                  ; Internal SW Interrupt #4 
                DCD     Internal5_IRQHandler                  ; Internal SW Interrupt #5 
                DCD     Internal6_IRQHandler                  ; Internal SW Interrupt #6 
                DCD     Internal7_IRQHandler                  ; Internal SW Interrupt #7 

__Vectors_End

__Vectors_Size  EQU     __Vectors_End - __Vectors
                EXPORT __ramVectors
                AREA    RESET_RAM, READWRITE, NOINIT
__ramVectors    SPACE   __Vectors_Size


                AREA    |.text|, CODE, READONLY


; Weak function for startup customization
;
; Note. The global resources are not yet initialized (for example global variables, peripherals, clocks)
; because this function is executed as the first instruction in the ResetHandler.
; The PDL is also not initialized to use the proper register offsets.
; The user of this function is responsible for initializing the PDL and resources before using them.
;
Cy_OnResetUser  PROC
                EXPORT  Cy_OnResetUser            [WEAK]
                BX      LR
                ENDP

; Reset Handler
Reset_Handler   PROC
                EXPORT  Reset_Handler             [WEAK]
                IMPORT  __main

                ; Define strong function for startup customization
                BL      Cy_OnResetUser

                ; Disable global interrupts
                CPSID I

                ; Copy vectors from ROM to RAM
                LDR r1, =__Vectors
                LDR r0, =__ramVectors
                LDR r2, =__Vectors_Size
Vectors_Copy
                LDR r3, [r1]
                STR r3, [r0]
                ADDS r0, r0, #4
                ADDS r1, r1, #4
                SUBS r2, r2, #1
                CMP r2, #0
                BNE Vectors_Copy

                ; Update Vector Table Offset Register. */
                LDR r0, =__ramVectors
                LDR r1, =0xE000ED08
                STR r0, [r1]
                dsb 0xF

                LDR     R0, =__main
                BLX     R0

                ; Should never get here
                B       .

                ENDP

; Dummy Exception Handlers (infinite loops which can be modified)
NMI_Handler         PROC
                    EXPORT  NMI_Handler               [WEAK]
                    B       .
                    ENDP

Cy_SysLib_FaultHandler PROC
                    EXPORT  Cy_SysLib_FaultHandler    [WEAK]
                    B       .
                    ENDP

HardFault_Handler   PROC
                    EXPORT HardFault_Handler          [WEAK]
                    movs r0, #4
                    mov r1, LR
                    tst r0, r1
                    beq L_MSP
                    mrs r0, PSP
                    bl L_API_call
L_MSP
                    mrs r0, MSP
L_API_call
                    bl Cy_SysLib_FaultHandler
                    ENDP

SVC_Handler         PROC
                    EXPORT  SVC_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  Default_Handler                       [WEAK]
                    EXPORT  NvicMux0_IRQHandler                   [WEAK]
                    EXPORT  NvicMux1_IRQHandler                   [WEAK]
                    EXPORT  NvicMux2_IRQHandler                   [WEAK]
                    EXPORT  NvicMux3_IRQHandler                   [WEAK]
                    EXPORT  NvicMux4_IRQHandler                   [WEAK]
                    EXPORT  NvicMux5_IRQHandler                   [WEAK]
                    EXPORT  NvicMux6_IRQHandler                   [WEAK]
                    EXPORT  NvicMux7_IRQHandler                   [WEAK]
                    EXPORT  Internal0_IRQHandler                  [WEAK]
                    EXPORT  Internal1_IRQHandler                  [WEAK]
                    EXPORT  Internal2_IRQHandler                  [WEAK]
                    EXPORT  Internal3_IRQHandler                  [WEAK]
                    EXPORT  Internal4_IRQHandler                  [WEAK]
                    EXPORT  Internal5_IRQHandler                  [WEAK]
                    EXPORT  Internal6_IRQHandler                  [WEAK]
                    EXPORT  Internal7_IRQHandler                  [WEAK]

NvicMux0_IRQHandler
NvicMux1_IRQHandler
NvicMux2_IRQHandler
NvicMux3_IRQHandler
NvicMux4_IRQHandler
NvicMux5_IRQHandler
NvicMux6_IRQHandler
NvicMux7_IRQHandler
Internal0_IRQHandler
Internal1_IRQHandler
Internal2_IRQHandler
Internal3_IRQHandler
Internal4_IRQHandler
Internal5_IRQHandler
Internal6_IRQHandler
Internal7_IRQHandler

                B       .
                ENDP

                ALIGN


; User Initial Stack & Heap
                IMPORT   __use_two_region_memory

                END


; [] END OF FILE