1. 修改MCU型号
2.在ENV界面输入
scons -c
scons --dist
3. dist下为更新后完整源代码
4.导入RT-Thread Studio
发现GD32F330已经生效了。文章来源：https://www.toymoban.com/news/detail-740912.html
文章来源地址https://www.toymoban.com/news/detail-740912.html
5. 自己编写startup_gd32f3x0.S，准确性待验证
;/*
; * Copyright (c) 2006-2021, RT-Thread Development Team
; *
; * SPDX-License-Identifier: Apache-2.0
; *
; * Change Logs:
; * Date Author Notes
; * 2018-05-22 tanek first implementation
; */
.syntax unified
.cpu cortex-m4
.fpu softvfp
.thumb
.global g_pfnVectors
.global Default_Handler
.section .isr_vector,"a",%progbits
.type g_pfnVectors, %object
g_pfnVectors:
.word _estack // Top of Stack
.word Reset_Handler // Reset Handler
.word NMI_Handler // NMI Handler
.word HardFault_Handler // Hard Fault Handler
.word MemManage_Handler // MPU Fault Handler
.word BusFault_Handler // Bus Fault Handler
.word UsageFault_Handler // Usage Fault Handler
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word SVC_Handler // SVCall Handler
.word DebugMon_Handler // Debug Monitor Handler
.word 0 // Reserved
.word PendSV_Handler // PendSV Handler
.word SysTick_Handler // SysTick Handler
// external interrupts handler
.word WWDGT_IRQHandler // 16:Window Watchdog Timer
.word LVD_IRQHandler // 17:LVD through EXTI Line detect
.word RTC_IRQHandler // 18:RTC Wakeup through EXTI Line
.word FMC_IRQHandler // 19:FMC
.word RCU_CTC_IRQHandler // 20:RCU and CTC
.word EXTI0_1_IRQHandler // 21:EXTI Line 0 and EXTI Line 1
.word EXTI2_3_IRQHandler // 22:EXTI Line 2 and EXTI Line 3
.word EXTI4_15_IRQHandler // 23:EXTI Line 4 to EXTI Line 15
.word TSI_IRQHandler // 24:TSI
.word DMA_Channel0_IRQHandler // 25:DMA Channel 0
.word DMA_Channel1_2_IRQHandler // 26:DMA Channel 1 and DMA Channel 2
.word DMA_Channel3_4_IRQHandler // 27:DMA Channel 3 and DMA Channel 4
.word ADC_CMP_IRQHandler // 28:ADC and Comparator 0-1
.word TIMER0_BRK_UP_TRG_COM_IRQHandler // 29:TIMER0 Break,Update,Trigger and Commutation
.word TIMER0_Channel_IRQHandler // 30:TIMER0 Channel Capture Compare
.word TIMER1_IRQHandler // 31:TIMER1
.word TIMER2_IRQHandler // 32:TIMER2
.word TIMER5_DAC_IRQHandler // 33:TIMER5 and DAC
.word 0 // Reserved
.word TIMER13_IRQHandler // 35:TIMER13
.word TIMER14_IRQHandler // 36:TIMER14
.word TIMER15_IRQHandler // 37:TIMER15
.word TIMER16_IRQHandler // 38:TIMER16
.word I2C0_EV_IRQHandler // 39:I2C0 Event
.word I2C1_EV_IRQHandler // 40:I2C1 Event
.word SPI0_IRQHandler // 41:SPI0
.word SPI1_IRQHandler // 42:SPI1
.word USART0_IRQHandler // 43:USART0
.word USART1_IRQHandler // 44:USART1
.word 0 // Reserved
.word CEC_IRQHandler // 46:CEC
.word 0 // Reserved
.word I2C0_ER_IRQHandler // 48:I2C0 Error
.word 0 // Reserved
.word I2C1_ER_IRQHandler // 50:I2C1 Error
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word USBFS_WKUP_IRQHandler // 58:USBFS Wakeup
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word DMA_Channel5_6_IRQHandler // 64:DMA Channel5 and Channel6
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word 0 // Reserved
.word USBFS_IRQHandler // 83:USBFS
.size g_pfnVectors, .-g_pfnVectors
.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
ldr r1, =_sidata
ldr r2, =_sdata
ldr r3, =_edata
subs r3, r2
ble fill_bss_start
loop_copy_data:
subs r3, #4
ldr r0, [r1,r3]
str r0, [r2,r3]
bgt loop_copy_data
fill_bss_start:
ldr r1, =__bss_start
ldr r2, =__bss_end
movs r0, 0
subs r2, r1
ble startup_enter
loop_fill_bss:
subs r2, #4
str r0, [r1, r2]
bgt loop_fill_bss
startup_enter:
bl SystemInit
bl entry
/* Exception Handlers */
.weak NMI_Handler
.type NMI_Handler, %function
NMI_Handler:
b .
.size NMI_Handler, . - NMI_Handler
.weak MemManage_Handler
.type MemManage_Handler, %function
MemManage_Handler:
b .
.size MemManage_Handler, . - MemManage_Handler
.weak BusFault_Handler
.type BusFault_Handler, %function
BusFault_Handler:
b .
.size BusFault_Handler, . - BusFault_Handler
.weak UsageFault_Handler
.type UsageFault_Handler, %function
UsageFault_Handler:
b .
.size UsageFault_Handler, . - UsageFault_Handler
.weak SVC_Handler
.type SVC_Handler, %function
SVC_Handler:
b .
.size SVC_Handler, . - SVC_Handler
.weak DebugMon_Handler
.type DebugMon_Handler, %function
DebugMon_Handler:
b .
.size DebugMon_Handler, . - DebugMon_Handler
.weak PendSV_Handler
.type PendSV_Handler, %function
PendSV_Handler:
b .
.size PendSV_Handler, . - PendSV_Handler
.weak SysTick_Handler
.type SysTick_Handler, %function
SysTick_Handler:
b .
.size SysTick_Handler, . - SysTick_Handler
/* IQR Handler */
.section .text.Default_Handler,"ax",%progbits
.type Default_Handler, %function
Default_Handler:
b .
.size Default_Handler, . - Default_Handler
.macro IRQ handler
.weak \handler
.set \handler, Default_Handler
.endm
IRQ WWDGT_IRQHandler
IRQ LVD_IRQHandler
IRQ RTC_IRQHandler
IRQ FMC_IRQHandler
IRQ RCU_CTC_IRQHandler
IRQ EXTI0_1_IRQHandler
IRQ EXTI2_3_IRQHandler
IRQ EXTI4_15_IRQHandler
IRQ TSI_IRQHandler
IRQ DMA_Channel0_IRQHandler
IRQ DMA_Channel1_2_IRQHandler
IRQ DMA_Channel3_4_IRQHandler
IRQ ADC_CMP_IRQHandler
IRQ TIMER0_BRK_UP_TRG_COM_IRQHandler
IRQ TIMER0_Channel_IRQHandler
IRQ TIMER1_IRQHandler
IRQ TIMER2_IRQHandler
IRQ TIMER5_DAC_IRQHandler
IRQ TIMER13_IRQHandler
IRQ TIMER14_IRQHandler
IRQ TIMER15_IRQHandler
IRQ TIMER16_IRQHandler
IRQ I2C0_EV_IRQHandler
IRQ I2C1_EV_IRQHandler
IRQ SPI0_IRQHandler
IRQ SPI1_IRQHandler
IRQ USART0_IRQHandler
IRQ USART1_IRQHandler
IRQ CEC_IRQHandler
IRQ I2C0_ER_IRQHandler
IRQ I2C1_ER_IRQHandler
IRQ USBFS_WKUP_IRQHandler
IRQ DMA_Channel5_6_IRQHandler
IRQ USBFS_IRQHandler
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