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-## board info:
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+# STM32F40x 板级支持包
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- STM32F4 discovery
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- http://www.st.com/internet/evalboard/product/252419.jsp
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+## 1. 简介
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-## note:
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+STM32F40x 是由意法半导体推出的Cortex-M4内核的高性能单片机
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+包括如下硬件特性：
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-in drivers/stm32f4xx_conf.h
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+| 硬件 | 描述 |
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+| -- | -- |
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+|芯片型号| STM32F40x全系列 |
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+|CPU| Cortex-M4 |
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+|主频| 84MHz-208MHz |
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-```c
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- /* Redefine the HSE value; it's equal to 8 MHz on the STM32F4-DISCOVERY Kit */
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- efine HSE_VALUE ((uint32_t)8000000)
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+## 2. 编译说明
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+
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+
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+| 环境 | 说明 |
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+| ------------ | ------------------------------------------------------------ |
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+| PC操作系统 | Linux/MacOS/Windows |
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+| 编译器 | arm-none-eabi-gcc version 6.3.1 20170620 (release)/armcc/iar |
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+| 构建工具 | scons/mdk5/iar |
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+| 依赖软件环境 | Env工具/(MDK或IAR或arm-none-eabi-gcc)/git/调试器驱动 |
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+
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+1) 下载源码
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+
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+```bash
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+ git clone https://github.com/RT-Thread/rt-thread.git
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+```
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+
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+2) 配置工程并准备env
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+
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+（Linux/Mac）
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+
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+```bash
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+ cd rt-thread/bsp/stm32f40x
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+ scons --menuconfig
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+ source ~/.env/env.sh
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+ pkgs --upgrade
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+```
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+
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+（Windows）
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+
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+>在[RT-Thread官网][1]下载ENV工具包
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+
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+3) 配置芯片型号
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+
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+（Linux/Mac）
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+
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+```bash
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+ scons --menuconfig
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+```
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+
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+（Windows(ENV环境中)）
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+
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+```bash
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+ menuconfig
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+```
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+
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+在menuconfig页面配置并选择对应的芯片型号，若开发环境为MDK/IAR，则需要生成工程
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+
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+4) 生成工程(Mac/Linux下请跳过此步骤)
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+
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+（Windows IAR）
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+
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+```bash
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+ SET RTT_CC=iar
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+ scons --target=iar -s
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```
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```
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-
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- **================= IAR WARNING =================**
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-
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-After use `scons --target=iar -s` command to product IAR project, you have to add iar link file manually.
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-IAR IDE steps:
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-1. Project-->Options-->Linker
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-2. Config-->Linker Configuration file
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-3. select `Override Default`, then select `bsp/stm32f40x/stm32f40x_flash.icf`
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-4. rebuild project
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+（Windows MDK5）
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+
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+```bash
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+ scons --target=mdk5 -s
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+```
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+
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+（Windows MDK4）
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+
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+```bash
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+ scons --target=mdk4 -s
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+```
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+
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+5) 编译
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+
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+使用MDK或IAR请参见对应教程
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+
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+（Windows arm-none-eabi-gcc）
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+使用以下指令设置gcc路径
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+
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+```bash
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+ SET RTT_EXEC_PATH=[GCC路径]
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+```
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+
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+（Linux/Mac arm-none-eabi-gcc）
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+使用以下指令设置gcc路径
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+
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+```bash
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+ export RTT_EXEC_PATH=[GCC路径]
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+```
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+
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+编译（WindowsLinux/Mac arm-none-eabi-gcc）
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+
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+```bash
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+ scons -j4
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+```
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+
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+出现下列信息即为编译成功
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+
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+```bash
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+ LINK rtthread-stm32f4xx.elf
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+ arm-none-eabi-objcopy -O binary rtthread-stm32f4xx.elf rtthread.bin
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+ arm-none-eabi-size rtthread-stm32f4xx.elf
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+ text data bss dec hex filename
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+ 41596 356 1456 43408 a990 rtthread-stm32f4xx.elf
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+ scons: done building targets.
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+```
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+
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+
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+如果编译正确无误，会产生rtthread-stm23f4xx.elf、rtthread.bin文件。其中rtthread.bin为二进制固件
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+
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+## 3. 烧写及执行
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+
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+烧写可以使用仿真器 ISP等多种方式 此处不再赘述
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+
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+### 3.1 运行结果
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+
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+如果编译 & 烧写无误，会在串口2*上看到RT-Thread的启动logo信息：
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+
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+```bash
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+ \ | /
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+- RT - Thread Operating System
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+ / | \ 3.0.4 build May 15 2018
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+ 2006 - 2018 Copyright by rt-thread team
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+msh />
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+```
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+
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+*默认串口
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+
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+
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+## 4. 驱动支持情况及计划
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+
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+| 驱动 | 支持情况 | 备注 |
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+| ------- | :------: | :-----------: |
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+| UART | 支持 | UART1/2/3/4/5 |
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+| GPIO | 支持 | / |
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+| hwtimer | 支持 | / |
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+| RTC | 支持 | / |
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+| eth | 支持 | LAN8720A |
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+
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+### 4.1 IO在板级支持包中的映射情况
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+
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+| IO号 | 板级包中的定义 |
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+| -- | -- |
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+| PB6 | USART1 TX |
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+| PB7 | USART1 RX |
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+| PA2 | USART2 TX |
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+| PA3 | USART2 RX |
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+| PD8 | USART3 TX |
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+| PD9 | USART3 RX |
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+| PC10 | UART4 TX |
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+| PC11 | UART4 RX |
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+| PC12 | UART5 TX |
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+| PD2 | UART5 RX |
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+
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+## 5. menuconfig Bsp菜单详解
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+
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+| 选项 | 解释 |
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+| -- | -- |
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+| Enable UART1 (PB6/7) | 开启串口1，串口1的设备名为"uart1" |
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+| Enable UART2 (PA2/3) | 开启串口2，串口1的设备名为"uart2" |
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+| Enable UART3 (PD8/9) | 开启串口3，串口1的设备名为"uart3" |
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+| Enable UART4 (PC10/11) | 开启串口4，串口1的设备名为"uart4" |
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+| Enable UART5 (PC12/PD2) | 开启串口5，串口1的设备名为"uart5" |
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+
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+*部分选项需要在RT-Thread组件菜单中开启对应的设备框架才能显示。
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+
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+## 6. 联系人信息
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-**TODO**
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+维护人:
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+[uestczyh222][4] < [lymz@foxmail.com][5] >
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-auto add *.icf by scons script
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+ [1]: https://www.rt-thread.org/page/download.html
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+ [4]: https://github.com/uestczyh222
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+ [5]: mailto:lymz@foxmail.com
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zyh