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拉取/合并请求描述:(PR description)

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为什么提交这份PR (why to submit this PR)

修复 stm32f407-atk-explorer BSP 中 TFTLCD 电阻触摸屏驱动无法正确传递 LVGL 触摸释放事件导致无法操作控件的问题,并优化了触摸驱动对 LVGL 中滑动控件的支持。

你的解决方案是什么 (what is your solution)

在XPT2046触摸驱动中添加完整的状态机管理和坐标优化算法:

  1. 完整的事件状态机

    • 添加触摸开始、移动、结束的完整状态跟踪
    • 正确发送LV_INDEV_STATE_PR(按下)和LV_INDEV_STATE_REL(释放)事件
    • 解决LVGL点击事件不触发的问题
  2. 滑动体验优化

    • 坐标平滑滤波:5点移动平均算法,减少电阻屏坐标跳动
    • 移动阈值检测:3像素移动阈值,智能区分点击和滑动操作
    • 去抖动处理:防止误触,提高触摸精度
    • 智能释放检测:连续5次(5ms)无触摸数据视为释放
  3. 参数优化配置

    #define HISTORY_SIZE 5                    // 历史坐标缓冲大小
    static const int DEBOUNCE_COUNT = 2;      // 按下去抖动次数
    static const int MIN_MOVE_DISTANCE = 3;   // 滑动检测阈值(像素)
    static const int SMOOTHING_FACTOR = 2;    // 坐标平滑插值因子

此方案不修改RT-Thread框架结构,保持向后兼容,仅优化触摸驱动内部算法。

请提供验证的bsp和config (provide the config and bsp)

  • BSP: bsp/stm32/stm32f407-atk-explorer
  • .config: 默认配置
    • 开启 Hardware Drivers Config -> Onboard Peripheral Drivers -> Enable ATK LCD
    • 开启 Hardware Drivers Config -> Onboard Peripheral Drivers -> Use LCD TOUCH (Default Res)
    • 开启 Hardware Drivers Config -> Onboard Peripheral Drivers -> Enable LVGL for LCD
    • 开启 Hardware Drivers Config -> Onboard Peripheral Drivers -> Enable LVGL demo
    • LVGL 版本为 8.3.11

验证结果

  1. ✅ LVGL日历DEMO正常显示,触摸交互正常
  2. ✅ 按钮点击事件正确触发,有按下/释放视觉反馈
  3. ✅ 滑动手势识别准确
    ]

当前拉取/合并请求的状态 Intent for your PR

必须选择一项 Choose one (Mandatory):

  • 本拉取/合并请求是一个草稿版本 This PR is for a code-review and is intended to get feedback
  • 本拉取/合并请求是一个成熟版本 This PR is mature, and ready to be integrated into the repo

代码质量 Code Quality:

我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:

  • 已经仔细查看过代码改动的对比 Already check the difference between PR and old code
  • 代码风格正确,包括缩进空格,命名及其他风格 Style guide is adhered to, including spacing, naming and other styles
  • 没有垃圾代码,代码尽量精简,不包含#if 0代码,不包含已经被注释了的代码 All redundant code is removed and cleaned up
  • 所有变更均有原因及合理的,并且不会影响到其他软件组件代码或BSP All modifications are justified and not affect other components or BSP
  • 对难懂代码均提供对应的注释 I've commented appropriately where code is tricky
  • 代码是高质量的 Code in this PR is of high quality
  • 已经使用formatting 等源码格式化工具确保格式符合RT-Thread代码规范 This PR complies with RT-Thread code specification
  • 如果是新增bsp, 已经添加ci检查到.github/ALL_BSP_COMPILE.json 详细请参考链接BSP自查

@github-actions
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👋 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).


🛠 操作步骤 | Steps

  1. 前往 Actions 页面 | Go to the Actions page
    点击进入工作流 → | Click to open workflow →

  2. 点击 Run workflow | Click Run workflow

  • 设置需排除的文件/目录(目录请以"/"结尾)
    Set files/directories to exclude (directories should end with "/")
  • 将目标分支设置为 \ Set the target branch to:dev-1
  • 设置PR number为 \ Set the PR number to:11135
  1. 等待工作流完成 | Wait for the workflow to complete
    格式化后的代码将自动推送至你的分支。
    The formatted code will be automatically pushed to your branch.

完成后,提交将自动更新至 dev-1 分支,关联的 Pull Request 也会同步更新。
Once completed, commits will be pushed to the dev-1 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 github-actions bot added BSP: STM32 BSP related with ST/STM32 BSP labels Jan 13, 2026
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github-actions bot commented Jan 13, 2026

📌 Code Review Assignment

🏷️ Tag: bsp_stm32

Reviewers: Liang1795 hamburger-os wdfk-prog

Changed Files (Click to expand)
  • bsp/stm32/stm32f407-atk-explorer/.ci/attachconfig/onboard-lcd-touch.attach
  • bsp/stm32/stm32f407-atk-explorer/.ci/attachconfig/onboard-lcd.attach
  • bsp/stm32/stm32f407-atk-explorer/board/ports/touch/drv_touch_xpt.c
  • bsp/stm32/stm32f407-atk-explorer/board/ports/touch/drv_xpt2046_init.c

📊 Current Review Status (Last Updated: 2026-01-13 21:43 CST)

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

📝 Review Instructions

  1. 维护者可以通过单击此处来刷新审查状态: 🔄 刷新状态
    Maintainers can refresh the review status by clicking here: 🔄 Refresh Status

  2. 确认审核通过后评论 LGTM/lgtm
    Comment LGTM/lgtm after confirming approval

  3. PR合并前需至少一位维护者确认
    PR must be confirmed by at least one maintainer before merging

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.

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