;/*!
;    \file    startup_gd32f450_470.s
;    \brief   start up file
;
;    \version 2024-01-15, V3.2.0, firmware for GD32F4xx
;*/
;
;/*  Copyright (c) 2012 ARM LIMITED
;    Copyright (c) 2024, GigaDevice Semiconductor Inc.
;
;   All rights reserved.
;   Redistribution and use in source and binary forms, with or without
;   modification, are permitted provided that the following conditions are met:
;   - Redistributions of source code must retain the above copyright
;     notice, this list of conditions and the following disclaimer.
;   - Redistributions in binary form must reproduce the above copyright
;     notice, this list of conditions and the following disclaimer in the
;     documentation and/or other materials provided with the distribution.
;   - Neither the name of ARM nor the names of its contributors may be used
;     to endorse or promote products derived from this software without
;     specific prior written permission.
;   *
;   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
;   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;   ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
;   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
;   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
;   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
;   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
;   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
;   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
;   POSSIBILITY OF SUCH DAMAGE.
;   ---------------------------------------------------------------------------*/

;/* This file refers the CMSIS standard, some adjustments are made according to GigaDevice chips */

; <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     0x00000400

                AREA    HEAP, NOINIT, READWRITE, ALIGN=3
__heap_base
Heap_Mem        SPACE   Heap_Size
__heap_limit

                PRESERVE8
                THUMB

;               /* reset Vector Mapped to at Address 0 */
                AREA    RESET, DATA, READONLY
                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 handler */
                DCD     WWDGT_IRQHandler                  ; 16:Window Watchdog Timer
                DCD     LVD_IRQHandler                    ; 17:LVD through EXTI Line detect
                DCD     TAMPER_STAMP_IRQHandler           ; 18:Tamper and TimeStamp through EXTI Line detect
                DCD     RTC_WKUP_IRQHandler               ; 19:RTC Wakeup through EXTI Line
                DCD     FMC_IRQHandler                    ; 20:FMC
                DCD     RCU_CTC_IRQHandler                ; 21:RCU and CTC
                DCD     EXTI0_IRQHandler                  ; 22:EXTI Line 0
                DCD     EXTI1_IRQHandler                  ; 23:EXTI Line 1
                DCD     EXTI2_IRQHandler                  ; 24:EXTI Line 2
                DCD     EXTI3_IRQHandler                  ; 25:EXTI Line 3
                DCD     EXTI4_IRQHandler                  ; 26:EXTI Line 4
                DCD     DMA0_Channel0_IRQHandler          ; 27:DMA0 Channel0
                DCD     DMA0_Channel1_IRQHandler          ; 28:DMA0 Channel1
                DCD     DMA0_Channel2_IRQHandler          ; 29:DMA0 Channel2
                DCD     DMA0_Channel3_IRQHandler          ; 30:DMA0 Channel3
                DCD     DMA0_Channel4_IRQHandler          ; 31:DMA0 Channel4
                DCD     DMA0_Channel5_IRQHandler          ; 32:DMA0 Channel5
                DCD     DMA0_Channel6_IRQHandler          ; 33:DMA0 Channel6
                DCD     ADC_IRQHandler                    ; 34:ADC
                DCD     CAN0_TX_IRQHandler                ; 35:CAN0 TX
                DCD     CAN0_RX0_IRQHandler               ; 36:CAN0 RX0
                DCD     CAN0_RX1_IRQHandler               ; 37:CAN0 RX1
                DCD     CAN0_EWMC_IRQHandler              ; 38:CAN0 EWMC
                DCD     EXTI5_9_IRQHandler                ; 39:EXTI5 to EXTI9
                DCD     TIMER0_BRK_TIMER8_IRQHandler      ; 40:TIMER0 Break and TIMER8
                DCD     TIMER0_UP_TIMER9_IRQHandler       ; 41:TIMER0 Update and TIMER9
                DCD     TIMER0_TRG_CMT_TIMER10_IRQHandler ; 42:TIMER0 Trigger and Commutation and TIMER10
                DCD     TIMER0_Channel_IRQHandler         ; 43:TIMER0 Capture Compare
                DCD     TIMER1_IRQHandler                 ; 44:TIMER1
                DCD     TIMER2_IRQHandler                 ; 45:TIMER2
                DCD     TIMER3_IRQHandler                 ; 46:TIMER3
                DCD     I2C0_EV_IRQHandler                ; 47:I2C0 Event
                DCD     I2C0_ER_IRQHandler                ; 48:I2C0 Error
                DCD     I2C1_EV_IRQHandler                ; 49:I2C1 Event
                DCD     I2C1_ER_IRQHandler                ; 50:I2C1 Error
                DCD     SPI0_IRQHandler                   ; 51:SPI0
                DCD     SPI1_IRQHandler                   ; 52:SPI1
                DCD     USART0_IRQHandler                 ; 53:USART0
                DCD     USART1_IRQHandler                 ; 54:USART1
                DCD     USART2_IRQHandler                 ; 55:USART2
                DCD     EXTI10_15_IRQHandler              ; 56:EXTI10 to EXTI15
                DCD     RTC_Alarm_IRQHandler              ; 57:RTC Alarm
                DCD     USBFS_WKUP_IRQHandler             ; 58:USBFS Wakeup
                DCD     TIMER7_BRK_TIMER11_IRQHandler     ; 59:TIMER7 Break and TIMER11
                DCD     TIMER7_UP_TIMER12_IRQHandler      ; 60:TIMER7 Update and TIMER12
                DCD     TIMER7_TRG_CMT_TIMER13_IRQHandler ; 61:TIMER7 Trigger and Commutation and TIMER13
                DCD     TIMER7_Channel_IRQHandler         ; 62:TIMER7 Channel Capture Compare
                DCD     DMA0_Channel7_IRQHandler          ; 63:DMA0 Channel7
                DCD     EXMC_IRQHandler                   ; 64:EXMC
                DCD     SDIO_IRQHandler                   ; 65:SDIO
                DCD     TIMER4_IRQHandler                 ; 66:TIMER4
                DCD     SPI2_IRQHandler                   ; 67:SPI2
                DCD     UART3_IRQHandler                  ; 68:UART3
                DCD     UART4_IRQHandler                  ; 69:UART4
                DCD     TIMER5_DAC_IRQHandler             ; 70:TIMER5 and DAC0 DAC1 Underrun error
                DCD     TIMER6_IRQHandler                 ; 71:TIMER6
                DCD     DMA1_Channel0_IRQHandler          ; 72:DMA1 Channel0
                DCD     DMA1_Channel1_IRQHandler          ; 73:DMA1 Channel1
                DCD     DMA1_Channel2_IRQHandler          ; 74:DMA1 Channel2
                DCD     DMA1_Channel3_IRQHandler          ; 75:DMA1 Channel3
                DCD     DMA1_Channel4_IRQHandler          ; 76:DMA1 Channel4
                DCD     ENET_IRQHandler                   ; 77:Ethernet
                DCD     ENET_WKUP_IRQHandler              ; 78:Ethernet Wakeup through EXTI Line
                DCD     CAN1_TX_IRQHandler                ; 79:CAN1 TX
                DCD     CAN1_RX0_IRQHandler               ; 80:CAN1 RX0
                DCD     CAN1_RX1_IRQHandler               ; 81:CAN1 RX1
                DCD     CAN1_EWMC_IRQHandler              ; 82:CAN1 EWMC
                DCD     USBFS_IRQHandler                  ; 83:USBFS
                DCD     DMA1_Channel5_IRQHandler          ; 84:DMA1 Channel5
                DCD     DMA1_Channel6_IRQHandler          ; 85:DMA1 Channel6
                DCD     DMA1_Channel7_IRQHandler          ; 86:DMA1 Channel7
                DCD     USART5_IRQHandler                 ; 87:USART5
                DCD     I2C2_EV_IRQHandler                ; 88:I2C2 Event
                DCD     I2C2_ER_IRQHandler                ; 89:I2C2 Error
                DCD     USBHS_EP1_Out_IRQHandler          ; 90:USBHS Endpoint 1 Out 
                DCD     USBHS_EP1_In_IRQHandler           ; 91:USBHS Endpoint 1 in
                DCD     USBHS_WKUP_IRQHandler             ; 92:USBHS Wakeup through EXTI Line
                DCD     USBHS_IRQHandler                  ; 93:USBHS
                DCD     DCI_IRQHandler                    ; 94:DCI
                DCD     0                                 ; 95:Reserved
                DCD     TRNG_IRQHandler                   ; 96:TRNG
                DCD     FPU_IRQHandler                    ; 97:FPU
                DCD     UART6_IRQHandler                  ; 98:UART6
                DCD     UART7_IRQHandler                  ; 99:UART7
                DCD     SPI3_IRQHandler                   ; 100:SPI3
                DCD     SPI4_IRQHandler                   ; 101:SPI4
                DCD     SPI5_IRQHandler                   ; 102:SPI5
                DCD     0                                 ; 103:Reserved
                DCD     TLI_IRQHandler                    ; 104:TLI
                DCD     TLI_ER_IRQHandler                 ; 105:TLI Error
                DCD     IPA_IRQHandler                    ; 106:IPA

__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 */
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
;               /* external interrupts handler */
                EXPORT  WWDGT_IRQHandler                  [WEAK]
                EXPORT  LVD_IRQHandler                    [WEAK]                  
                EXPORT  TAMPER_STAMP_IRQHandler           [WEAK]           
                EXPORT  RTC_WKUP_IRQHandler               [WEAK]               
                EXPORT  FMC_IRQHandler                    [WEAK]                
                EXPORT  RCU_CTC_IRQHandler                [WEAK]                 
                EXPORT  EXTI0_IRQHandler                  [WEAK]                  
                EXPORT  EXTI1_IRQHandler                  [WEAK]                 
                EXPORT  EXTI2_IRQHandler                  [WEAK]               
                EXPORT  EXTI3_IRQHandler                  [WEAK]                
                EXPORT  EXTI4_IRQHandler                  [WEAK]                 
                EXPORT  DMA0_Channel0_IRQHandler          [WEAK]         
                EXPORT  DMA0_Channel1_IRQHandler          [WEAK]          
                EXPORT  DMA0_Channel2_IRQHandler          [WEAK]        
                EXPORT  DMA0_Channel3_IRQHandler          [WEAK]         
                EXPORT  DMA0_Channel4_IRQHandler          [WEAK]          
                EXPORT  DMA0_Channel5_IRQHandler          [WEAK]          
                EXPORT  DMA0_Channel6_IRQHandler          [WEAK]          
                EXPORT  ADC_IRQHandler                    [WEAK]         
                EXPORT  CAN0_TX_IRQHandler                [WEAK]          
                EXPORT  CAN0_RX0_IRQHandler               [WEAK]          
                EXPORT  CAN0_RX1_IRQHandler               [WEAK]           
                EXPORT  CAN0_EWMC_IRQHandler              [WEAK]           
                EXPORT  EXTI5_9_IRQHandler                [WEAK]           
                EXPORT  TIMER0_BRK_TIMER8_IRQHandler      [WEAK]  
                EXPORT  TIMER0_UP_TIMER9_IRQHandler       [WEAK]  
                EXPORT  TIMER0_TRG_CMT_TIMER10_IRQHandler [WEAK]
                EXPORT  TIMER0_Channel_IRQHandler         [WEAK]        
                EXPORT  TIMER1_IRQHandler                 [WEAK]       
                EXPORT  TIMER2_IRQHandler                 [WEAK]           
                EXPORT  TIMER3_IRQHandler                 [WEAK]           
                EXPORT  I2C0_EV_IRQHandler                [WEAK]          
                EXPORT  I2C0_ER_IRQHandler                [WEAK]         
                EXPORT  I2C1_EV_IRQHandler                [WEAK]         
                EXPORT  I2C1_ER_IRQHandler                [WEAK]         
                EXPORT  SPI0_IRQHandler                   [WEAK]        
                EXPORT  SPI1_IRQHandler                   [WEAK]          
                EXPORT  USART0_IRQHandler                 [WEAK]         
                EXPORT  USART1_IRQHandler                 [WEAK]         
                EXPORT  USART2_IRQHandler                 [WEAK]        
                EXPORT  EXTI10_15_IRQHandler              [WEAK]        
                EXPORT  RTC_Alarm_IRQHandler              [WEAK]        
                EXPORT  USBFS_WKUP_IRQHandler             [WEAK]        
                EXPORT  TIMER7_BRK_TIMER11_IRQHandler     [WEAK] 
                EXPORT  TIMER7_UP_TIMER12_IRQHandler      [WEAK] 
                EXPORT  TIMER7_TRG_CMT_TIMER13_IRQHandler [WEAK]
                EXPORT  TIMER7_Channel_IRQHandler         [WEAK]        
                EXPORT  DMA0_Channel7_IRQHandler          [WEAK]       
                EXPORT  EXMC_IRQHandler                   [WEAK]         
                EXPORT  SDIO_IRQHandler                   [WEAK]           
                EXPORT  TIMER4_IRQHandler                 [WEAK]           
                EXPORT  SPI2_IRQHandler                   [WEAK]          
                EXPORT  UART3_IRQHandler                  [WEAK]          
                EXPORT  UART4_IRQHandler                  [WEAK]          
                EXPORT  TIMER5_DAC_IRQHandler             [WEAK]         
                EXPORT  TIMER6_IRQHandler                 [WEAK]        
                EXPORT  DMA1_Channel0_IRQHandler          [WEAK]          
                EXPORT  DMA1_Channel1_IRQHandler          [WEAK]          
                EXPORT  DMA1_Channel2_IRQHandler          [WEAK]         
                EXPORT  DMA1_Channel3_IRQHandler          [WEAK]         
                EXPORT  DMA1_Channel4_IRQHandler          [WEAK]          
                EXPORT  ENET_IRQHandler                   [WEAK]         
                EXPORT  ENET_WKUP_IRQHandler              [WEAK]         
                EXPORT  CAN1_TX_IRQHandler                [WEAK]          
                EXPORT  CAN1_RX0_IRQHandler               [WEAK]         
                EXPORT  CAN1_RX1_IRQHandler               [WEAK]          
                EXPORT  CAN1_EWMC_IRQHandler              [WEAK]          
                EXPORT  USBFS_IRQHandler                  [WEAK]          
                EXPORT  DMA1_Channel5_IRQHandler          [WEAK]          
                EXPORT  DMA1_Channel6_IRQHandler          [WEAK]          
                EXPORT  DMA1_Channel7_IRQHandler          [WEAK]          
                EXPORT  USART5_IRQHandler                 [WEAK]          
                EXPORT  I2C2_EV_IRQHandler                [WEAK]         
                EXPORT  I2C2_ER_IRQHandler                [WEAK]          
                EXPORT  USBHS_EP1_Out_IRQHandler          [WEAK]    
                EXPORT  USBHS_EP1_In_IRQHandler           [WEAK]    
                EXPORT  USBHS_WKUP_IRQHandler             [WEAK]             
                EXPORT  USBHS_IRQHandler                  [WEAK]            
                EXPORT  DCI_IRQHandler                    [WEAK]                      
                EXPORT  TRNG_IRQHandler                   [WEAK]          
                EXPORT  FPU_IRQHandler                    [WEAK]          
                EXPORT  UART6_IRQHandler                  [WEAK]          
                EXPORT  UART7_IRQHandler                  [WEAK]          
                EXPORT  SPI3_IRQHandler                   [WEAK]          
                EXPORT  SPI4_IRQHandler                   [WEAK]          
                EXPORT  SPI5_IRQHandler                   [WEAK]                 
                EXPORT  TLI_IRQHandler                    [WEAK]         
                EXPORT  TLI_ER_IRQHandler                 [WEAK]         
                EXPORT  IPA_IRQHandler                    [WEAK]          
  
;/* external interrupts handler */
WWDGT_IRQHandler                  
LVD_IRQHandler                    
TAMPER_STAMP_IRQHandler           
RTC_WKUP_IRQHandler               
FMC_IRQHandler                   
RCU_CTC_IRQHandler                   
EXTI0_IRQHandler                  
EXTI1_IRQHandler                 
EXTI2_IRQHandler                
EXTI3_IRQHandler                 
EXTI4_IRQHandler                  
DMA0_Channel0_IRQHandler         
DMA0_Channel1_IRQHandler          
DMA0_Channel2_IRQHandler        
DMA0_Channel3_IRQHandler         
DMA0_Channel4_IRQHandler          
DMA0_Channel5_IRQHandler          
DMA0_Channel6_IRQHandler          
ADC_IRQHandler                   
CAN0_TX_IRQHandler                
CAN0_RX0_IRQHandler               
CAN0_RX1_IRQHandler               
CAN0_EWMC_IRQHandler               
EXTI5_9_IRQHandler                
TIMER0_BRK_TIMER8_IRQHandler    
TIMER0_UP_TIMER9_IRQHandler   
TIMER0_TRG_CMT_TIMER10_IRQHandler 
TIMER0_Channel_IRQHandler        
TIMER1_IRQHandler             
TIMER2_IRQHandler                 
TIMER3_IRQHandler                 
I2C0_EV_IRQHandler                
I2C0_ER_IRQHandler               
I2C1_EV_IRQHandler               
I2C1_ER_IRQHandler               
SPI0_IRQHandler                  
SPI1_IRQHandler                   
USART0_IRQHandler                 
USART1_IRQHandler                 
USART2_IRQHandler                
EXTI10_15_IRQHandler              
RTC_Alarm_IRQHandler             
USBFS_WKUP_IRQHandler             
TIMER7_BRK_TIMER11_IRQHandler   
TIMER7_UP_TIMER12_IRQHandler  
TIMER7_TRG_CMT_TIMER13_IRQHandler 
TIMER7_Channel_IRQHandler         
DMA0_Channel7_IRQHandler         
EXMC_IRQHandler                   
SDIO_IRQHandler                   
TIMER4_IRQHandler                 
SPI2_IRQHandler                  
UART3_IRQHandler                  
UART4_IRQHandler                  
TIMER5_DAC_IRQHandler             
TIMER6_IRQHandler                
DMA1_Channel0_IRQHandler          
DMA1_Channel1_IRQHandler         
DMA1_Channel2_IRQHandler         
DMA1_Channel3_IRQHandler         
DMA1_Channel4_IRQHandler          
ENET_IRQHandler                  
ENET_WKUP_IRQHandler             
CAN1_TX_IRQHandler                
CAN1_RX0_IRQHandler              
CAN1_RX1_IRQHandler               
CAN1_EWMC_IRQHandler               
USBFS_IRQHandler                  
DMA1_Channel5_IRQHandler          
DMA1_Channel6_IRQHandler          
DMA1_Channel7_IRQHandler          
USART5_IRQHandler                 
I2C2_EV_IRQHandler               
I2C2_ER_IRQHandler                
USBHS_EP1_Out_IRQHandler    
USBHS_EP1_In_IRQHandler     
USBHS_WKUP_IRQHandler             
USBHS_IRQHandler                  
DCI_IRQHandler                                    
TRNG_IRQHandler                  
FPU_IRQHandler                    
UART6_IRQHandler                  
UART7_IRQHandler                  
SPI3_IRQHandler                   
SPI4_IRQHandler                   
SPI5_IRQHandler                                     
TLI_IRQHandler                    
TLI_ER_IRQHandler                 
IPA_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
