[bsp][stm32] Add LXB407ZGT6-P1 board support

[Zepp-Hanzj]

Description / 描述

新增鹿小班（LXB）LXB407ZGT6-P1 开发板的 BSP 支持。

Add BSP support for the LXB407ZGT6-P1 development board from Lu Xiao Ban (LXB).

Board / 板子信息

• MCU: STM32F407ZGT6 (Cortex-M4, 168MHz, 1MB FLASH, 192KB RAM)
• HSE 8MHz / LSE 32.768kHz
• LED: PC13 (active low)
• Console: USART1 (PA9/PA10), 115200-8-1-N
• 调试接口: SWD + 串口

Verification / 验证

• 编译通过（GCC, arm-none-eabi-gcc）

Build passed with arm-none-eabi-gcc.

[github-actions]

👋 感谢您对 RT-Thread 的贡献！Thank you for your contribution to RT-Thread!

为确保代码符合 RT-Thread 的编码规范，请在你的仓库中执行以下步骤运行代码格式化工作流（如果格式化CI运行失败）。
To ensure your code complies with RT-Thread's coding style, please run the code formatting workflow by following the steps below (If the formatting of CI fails to run).

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1. 前往 Actions 页面 | Go to the Actions page
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• Use workflow from 保持默认分支（通常为 master）
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• 在 branch 输入框填写 PR 分支 bsp/stm32f407-lxb
  Enter PR branch bsp/stm32f407-lxb in the branch field
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完成后，提交将自动更新至 bsp/stm32f407-lxb 分支，关联的 Pull Request 也会同步更新。
Once completed, commits will be pushed to the bsp/stm32f407-lxb branch automatically, and the related Pull Request will be updated.

如有问题欢迎联系我们，再次感谢您的贡献！💐
If you have any questions, feel free to reach out. Thanks again for your contribution!

[github-actions]

📌 Code Review Assignment

🏷️ Tag: bsp_stm32

Reviewers: @Liang1795 @hamburger-os @wdfk-prog

Changed Files (Click to expand)

• bsp/stm32/stm32f407-lxb/.ci/attachconfig/ci.attachconfig.yml
• bsp/stm32/stm32f407-lxb/.config
• bsp/stm32/stm32f407-lxb/.cproject
• bsp/stm32/stm32f407-lxb/.gitignore
• bsp/stm32/stm32f407-lxb/.project
• bsp/stm32/stm32f407-lxb/Kconfig
• bsp/stm32/stm32f407-lxb/README.md
• bsp/stm32/stm32f407-lxb/SConscript
• bsp/stm32/stm32f407-lxb/SConstruct
• bsp/stm32/stm32f407-lxb/applications/SConscript
• bsp/stm32/stm32f407-lxb/applications/main.c
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/.mxproject
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/CubeMX_Config.ioc
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/Inc/main.h
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/Inc/stm32f4xx_hal_conf.h
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/Inc/stm32f4xx_it.h
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/Src/stm32f4xx_hal_msp.c
• bsp/stm32/stm32f407-lxb/board/CubeMX_Config/Src/stm32f4xx_it.c
• bsp/stm32/stm32f407-lxb/board/Kconfig
• bsp/stm32/stm32f407-lxb/board/SConscript
• bsp/stm32/stm32f407-lxb/board/board.c
• bsp/stm32/stm32f407-lxb/board/board.h
• bsp/stm32/stm32f407-lxb/board/linker_scripts/link.icf
• bsp/stm32/stm32f407-lxb/board/linker_scripts/link.lds
• bsp/stm32/stm32f407-lxb/board/linker_scripts/link.sct
• bsp/stm32/stm32f407-lxb/figures/board.png
• bsp/stm32/stm32f407-lxb/makefile.targets
• bsp/stm32/stm32f407-lxb/project.ewd
• bsp/stm32/stm32f407-lxb/project.ewp
• bsp/stm32/stm32f407-lxb/project.eww

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📊 Current Review Status (Last Updated: 2026-08-25 10:19 CST)

• ⌛ @Liang1795 Pending Review
• ⌛ @hamburger-os Pending Review
• ⌛ @wdfk-prog Pending Review

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📝 Review Instructions

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3. PR合并前需至少一位维护者确认
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ℹ️ 刷新CI状态操作需要具备仓库写入权限。
ℹ️ Refresh CI status operation requires repository Write permission.

[CYFS3]

谢谢pr，但是目前f4的板子应该会重点维护星火一号，理论上也只要改改串口就可以使用了。
#11587

[Zepp-Hanzj]

理解，谢谢反馈。LXB407ZGT6-P1 与星火一号同为 STM32F407ZGT6，确实可以通过复用星火一号 BSP（改 LED 引脚为 PC13）来使用，无需单独 BSP。已关闭此 PR。

Understood, thanks for the feedback. LXB407ZGT6-P1 shares the same STM32F407ZGT6 as 星火一号, so it can use the rt-spark BSP by just changing the LED pin to PC13. Closing this PR.