29 Star 202 Fork 43

peng-zhihui / HelloWord-Keyboard

加入 Gitee
与超过 1200万 开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)
免费加入
克隆/下载
贡献代码
同步代码
取消
提示: 由于 Git 不支持空文件夾,创建文件夹后会生成空的 .keep 文件
Loading...
README
GPL-3.0

【瀚文】HelloWord-Smart Keyboard

hw1

瀚文 智能键盘是一把我为自己使用需求设计的 多功能模块化 机械键盘。

键盘使用模块化设计,左侧的多功能场景交互模块可以替换成各种自定义组件,默认使用的是一个带电子墨水屏以及FOC力反馈旋钮的Dynamic组件;键盘使用我自己开发的基于ARM Cortex-M芯片的键盘固件以及模块固件;键盘本体使用移位寄存器方式实现优化的按键扫描电路;模块以及键盘本体可以单独使用,也可以通过串口协议进行相互通信和调用。

本仓库开源的资料内容包括:

  • 瀚文本体硬件设计的10块PCB设计源文件,提供立创EDA专业版的文件格式
  • 外壳设计结构文件
  • 键盘本体的固件源码(已相对完善)
  • Dynamic组件的固件源码(已完成框架,更多APP扩展WIP)
  • 键盘二次开发SDK(开发中)

键盘功能演示可以参考:

注意:Issues里面是讨论项目开发相关话题的,不要在里面发无意义的消息,不然watch了仓库的人都会收到通知邮件会给别人造成困扰的!!!灌水可以在仓库的Discuss里讨论!


1. 项目说明

1.0 更新说明:

22.8.13更新:

  • 新打样的PCB已经收到,但是由于何同学这周发视频,为了避免带来不必要的压力,所以决定错峰下周六再把PCB工程更新(doge).

22.7.31更新:

  • 添加键盘硬件所有设计原理图文件(电路还有些bug没修复,如视频里的飞线,会晚些等新版PCB打样收到验证没问题后更新)
  • 添加键盘固件源代码
  • 添加Dynamic组件源代码

1.1 项目文件说明:

1.1.1 Hardware

Hardware文件夹内是瀚文键盘里面用到的所有电路的原理图和PCB文件,目前提供的是立创EDA专业版格式的源文件以及Gerber格式的光绘文件用于提供给厂家进行直接加工。

hw0

一共有如下几块板子:

  • HelloWord-Keyboard:主键盘的PCB,控制器为STM32F103,可以配合底座单独使用,提供常规按键输入功能,带全按键独立RGB灯。
  • HelloWord-Ctrl:左侧Dynamic组件的PCB,控制器为STM32F405,可以配合底座单独使用,提供FOC力反馈旋钮、电子墨水屏显示、OLED显示、RGB灯等功能。
  • HelloWord-Connector:主键盘用于连接底座的触点PCB,通过FFC排线与键盘PCB连接。
  • HelloWord-Connector-Ctrl:Dynamic组件用于连接底座的触点PCB,通过FFC排线与Dynamic组件PCB连接。
  • HelloWord-Encoder:磁编码器PCB,用于对无刷电机进行位置反馈,需要配合一个径向充磁的永磁铁工作。
  • HelloWord-Hub1:底座上扩展出的两个额外USB-A接口转接PCB,通过FFC排线和TypeC接口板连接。
  • HelloWord-Hub2:底座上扩展出的两个额外USB-A接口的母座PCB,预留的是USB3.0母座和引脚,但是目前只使用到了2.0接口,未来可以升级到USB3.0的HUB。
  • HelloWord-TypeC:底座上用于连接电脑的TypeC接口PCB,板载了电源充电管理芯片,以及USB-HUB芯片,通过FFC排线连接其余模块。
  • HelloWord-OLED:Dynamic组件上OLED屏幕的最小驱动电路以及转接板。
  • HelloWord-TouchBar:可选的电容触摸条模块PCB,使用6按键电容触摸芯片组成一个线性感应阵列,通过FFC排线和主键盘PCB连接。

1.1.2 Firmware

Firmware中提供了上面所有板子的固件源码,以及预编译好的bin固件可以直接烧录,主要包含以下两个工程:

  • HelloWord-Keyboard-fw:主键盘的固件,主要实现了基于硬件SPI和移位寄存器的高速按键扫描、基于硬件SPI&DMA的总线式RGB灯控制、HID高速设备键盘枚举&报文协议实现、非易失存储配置、多层按键映射等功能。
  • **HelloWord-Dynamic-fw:**Dynamic组件的固件,主要实现了基于FOC的电机控制代码、可配置触感封装类、电子墨水屏驱动、OLED驱动、USB全速复合设备枚举和通信协议、RGB灯控制等功能。

工程都是基于STM32HAL实现的,所以提供了对应的.ioc文件,可以自行用STM32CubeMX打开,生成对应的keil或者STM32IDE工程文件。当让也可以像我一样,用CLion或者STM32CubeIDE进行编译和下载。

_Release文件夹里是预编译好的bin文件,可以用ST-Link Utillity或者STM32CubeProgrammer之类的软件直接下载到芯片。

关于固件的实现细节后文有讲解。

把CLion变成STM32的IDE的方法参考我之前发的一篇教程:配置CLion用于STM32开发【优雅の嵌入式开发】

1.1.3 Software

Software中提供了一些用于和键盘交互的电脑端上位机软件,包括视频里演示的傻瓜化修改墨水屏图片的上位机软件,以及后续会逐步补充用于修改键位的图形化软件模块添加APP的应用商店软件,这些还在开发中。

1.1.4 Tools

Tools主要是提供一些三方的工具软件,比如STM32 ST-LINK Utility 、用于安装驱动的zadig等等。

1.1.5 3D Model

文件夹里是键盘用到的所有结构件的3D模型文件,可以用于3D打印。

1.1.6 Docs

相关的参考文件,包括芯片的Datasheet等。

2. 硬件架构说明

关于结构设计?

瀚文的结构包括三大部分:扩展坞底座键盘输入模块可替换的多功能交互模块,键盘输入模块和可替换的多功能交互模块通过若干接触式触点连接在所述扩展坞底座顶部:

hw2

而键盘本体也是一个标准的客制化键盘层叠结构设计,包含减震棉、PCBA、定位板、轴下垫等:

hw2

键盘的结构设计主要是Xikii根据S98修改而来,为75键布局,有其他布局需要的同学可以自行修改PCB和固件适配。

关于视频中展示的结构件,由于是Xikii的方案所以我也不好擅自把源文件放出,而且原始版本结构是用于CNC机加工的,成本会比较高。

所以我也让Xikii帮忙设计一套简化版可用于3D的结构件,并开源出来放到仓库。

关于芯片选型?

  • 键盘主控选用的芯片是STM32F103CBT6,实际上C8T6也可以,不过考虑到未来固件功能的扩展性,Flash大一倍的CBT6性价比更高。这块由于我固件基本都是使用HAL库实现的,因此实际上也可以把主控替换成STM32系列的任何一款芯片,需要支芯片有2个SPI硬件接口分别用于按键扫描以及RGB灯驱动,以及一个全速USB接口即可。
  • Dynamic组件主控的STM32F4,这个是因为我手边这款芯片比较多,理论上可以替换为性价比更高的F1系列的,只要芯片具备一个高级定时器用于PWM生成、2个硬件SPI接口用于编码器和电子墨水屏通信、一个I2C接口用于OLED驱动,以及一个全速USB接口即可。
  • 电机的磁编码器芯片我是使用AS5047P,也是一款很常用性能很好的磁编码芯片,不过成本略高,我只是因为手边有所以选了这款,也是可以修改为其他更便宜的型号的比如MT6816等,当然也需要修改固件驱动代码。
  • 按键扫描用的移位寄存器使用的74HC165,国产芯片零售的话大概0.5元一片,一片可以驱动8个按键,按照你自己需要的按键数目修改串联的寄存器芯片即可。进口的165比如TI原装的要比国产贵一些,性能也会稍微好点,不过由于本项目中按键扫描频率4MHz已经完全够用了,因此哪怕国产的16MHz芯片也绰绰有余了。
  • 电容触摸板使用的是一个6通道电容触摸按键芯片XW06A实现的,这个对于PCB感应盘的设计有一定要求,仓库已经提供了设计好的PCB。对于该芯片的读取方式,其实和普通按键没有区别,所以本方案中也是使用74HC165进行扫描读取的。
  • 电机FOC驱动电路完全是从我的Ctrl驱动器中移植过来的,使用FD8288Q作为栅极驱动器,无需电流传感器。

关于烧录方式?

使用JLink、STLink之类的调试器烧录,我在PCB和外壳上都预留了SWD调试口。对于没有硬件开发经验的同学,我晚点也会放出一个Bootloader,可以直接通过USB口进行固件升级。

关于电机选型?

我使用的是一个2204的二手电机,不过这一款电机目前好像不太好买,大家可以选取类似尺寸的无刷电机替换,参数方面需要KV值低一些,最好200左右。电机需要手动在转子上安装一个径向充磁的永磁体用于编码器定位,不同型号的电机需要对FOC参数进行一些调整。

hw2

3. 软件架构说明

关于键盘固件的按键映射方式?

为了充分发挥视频中提到的移位寄存器扫描方案的优势,固件代码中将PCB Layout走线和按键扫描顺序解耦,通过软件进行重映射。也就是说PCB中按键的连接可以是任意的,走完线之后可以在hw_keyboard.h文件中的keyMap[KEYMAP_NUM][IO_NUMBER]中指定映射方式。

这是一个二维数组,代表有KEYMAP_NUM层键位映射,每一层有IO_NUMBER个按键(也就是你的键盘按键数目);其中第0层是特殊的,负责映射PCB按键的随机布局到键盘标准按键布局,后续的1、2、3、4...层都是自定义的,负责映射标准按键布局到任意布局。

举个例子:

考虑原理图中箭头指的那个按键,这个按键可以在PCB的任意位置,但是我们可以看到,它是从左到右(按74HC165的连接顺序,也即移位扫描顺序)的第10颗,因此它的编号为9(从0开始算).

hw2

如果我们在实际的PCB板上把它放在了右边Alt的位置,那么参考在下图代码红色框中的第1层映射(也就是标准布局)中的RIGHT_ALT的序号是76,那么在第0层映射的76号变量就填入9(蓝色框).

这样依次把你PCB上所有按键都填入0层映射,就得到了一个映射好的标准键盘了。后续2、3、4、5...层需要怎么映射就随意修改添加即可,也不需要再使用数字编号,而是可以直接用枚举的按键名称很方便。

所以对于想修改键盘配列的人,只需要再原理图上添加或删减几个串联的74HC165,然后PCB随意走线,再将代码中0层映射删减或增加一些数字即可(比如在下面的例子中我的键盘是83键的);后面几层的修改就以此类推了。

代码中通过keyboard.Remap函数来映射不同层,比如keyboard.Remap(2)这一句是使用第2层映射。

hw2

关于键盘固件的滤波方法?

固件中使用了每个按键独立的滤波,但是是以一种非常高效的方式来实现的(毕竟1KHz的报文,每个报文期间至少扫描两次按键,意味着每秒钟需要进行 1000*2*[按键数目] 次数的滤波)。

基本原理很简单,就是按键抖动的原因是按下后会在高低电平之间反复横跳,这个稳定时间一般是几十us(注意是电平稳定时间,不是按键触发时间,后者是由于按键簧片接触时间的不确定性导致的,可能长达数ms)。

在QMK的qmk_firmware/feature_debounce_type文档中描述了其使用的几种滤波方法,分为Eager和Defer、对称和非对称等,

默认是使用对称延迟全局滤波,也就是说是对所有按键进行同等的滤波,等所有的按键都稳定了不再变化,再提交扫描数据。

与之对应的是激进滤波方法,也就是说一旦检测到按键变化就提交数据,但是在这之后的N毫秒时间内不再响应任何按键(也就避免了把不断抖动的按键提交上去)。这种方法触发延迟低,但是对噪声很敏感,容易误触发。

我在瀚文的固件中使用的是对称延迟独立滤波,也就是对每个按键进行两次检测,如果第一次检测到了按键变化,那么相隔N微秒(这个参数可以配置,大于按键典型抖动时间即可)再检测一次,如果两次检测结果一致,那么判断按键被按下,此时可以确保按键发生了变化,且不会重复触发按键,兼顾延迟和稳定性。

这个过程是通过异或运算进行高效处理的,正好按键buffer由于是移位寄存器扫描得到的,本身就是每一位代表一个按键,所以滤波效率非常高,实测效果也挺好的。

hw2

关于键盘固件的HID描述符?

这个可以直接参考源码的usbd_customhid.c文件,我配置了两个ReportID,ID-0是上报键位扫描数据的(全键无冲),ID-1是预留用于后续跟上位机改键软件通信用的。

关于RGB的控制?

代码中使用的是单总线的ws2812b系列灯珠,一根线就可以串联一大堆RGB,而且代码中实现了SPI-DMA模拟时序,得到了超高的刷新率。

目前代码里只写了一个demo灯效(非常简单就是轮询色彩),自己添加额外的灯效的话,通过keyboard.SetRgbBuffer函数设置RGB值,然后SyncLights把数据发送给LED即可:

while (true)
    {
        /*---- This is a demo RGB effect ----*/
        static uint32_t t = 1;
        static bool fadeDir = true;

        fadeDir ? t++ : t--;
        if (t > 250) fadeDir = false;
        else if (t < 1) fadeDir = true;

        for (uint8_t i = 0; i < HWKeyboard::LED_NUMBER; i++)
            keyboard.SetRgbBuffer(i, HWKeyboard::Color_t{(uint8_t) t, 50, 0});
        /*-----------------------------------*/

        // Send RGB buffers to LEDs
        keyboard.SyncLights();
    }

4. SDK设计 & 二次开发

待补充。

感谢以下项目:

Lexikos/AutoHotkey_L: AutoHotkey - macro-creation and automation-oriented scripting utility for Windows. (github.com)

olikraus/u8g2: U8glib library for monochrome displays, version 2 (github.com)

simplefoc/Arduino FOC for BLDC (github.com)

zhongyang219/TrafficMonitor: 这是一个用于显示当前网速、CPU及内存利用率的桌面悬浮窗软件,并支持任务栏显示,支持更换皮肤。 (github.com)

GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things. To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others. For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it. For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions. Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users. Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS 0. Definitions. "This License" refers to version 3 of the GNU General Public License. "Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor masks. "The Program" refers to any copyrightable work licensed under this License. Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals or organizations. To "modify" a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a "modified version" of the earlier work or a work "based on" the earlier work. A "covered work" means either the unmodified Program or a work based on the Program. To "propagate" a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well. To "convey" a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying. An interactive user interface displays "Appropriate Legal Notices" to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion. 1. Source Code. The "source code" for a work means the preferred form of the work for making modifications to it. "Object code" means any non-source form of a work. A "Standard Interface" means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language. The "System Libraries" of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A "Major Component", in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it. The "Corresponding Source" for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work. The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source. The Corresponding Source for a work in source code form is that same work. 2. Basic Permissions. All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law. You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you. Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary. 3. Protecting Users' Legal Rights From Anti-Circumvention Law. No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures. When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures. 4. Conveying Verbatim Copies. You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program. You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee. 5. Conveying Modified Source Versions. You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions: a) The work must carry prominent notices stating that you modified it, and giving a relevant date. b) The work must carry prominent notices stating that it is released under this License and any conditions added under section 7. This requirement modifies the requirement in section 4 to "keep intact all notices". c) You must license the entire work, as a whole, under this License to anyone who comes into possession of a copy. This License will therefore apply, along with any applicable section 7 additional terms, to the whole of the work, and all its parts, regardless of how they are packaged. This License gives no permission to license the work in any other way, but it does not invalidate such permission if you have separately received it. d) If the work has interactive user interfaces, each must display Appropriate Legal Notices; however, if the Program has interactive interfaces that do not display Appropriate Legal Notices, your work need not make them do so. A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an "aggregate" if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate. 6. Conveying Non-Source Forms. You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways: a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange. b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge. c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b. d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements. e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d. A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work. A "User Product" is either (1) a "consumer product", which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, "normally used" refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product. "Installation Information" for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made. If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM). The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network. Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying. 7. Additional Terms. "Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions. When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms: a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or d) Limiting the use for publicity purposes of names of licensors or authors of the material; or e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors. All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying. If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms. Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way. 8. Termination. You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11). However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10. 9. Acceptance Not Required for Having Copies. You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so. 10. Automatic Licensing of Downstream Recipients. Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License. An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it. 11. Patents. A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's "contributor version". A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version. In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid. If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it. A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. <one line to give the program's name and a brief idea of what it does.> Copyright (C) <year> <name of author> This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: <program> Copyright (C) <year> <name of author> This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <https://www.gnu.org/licenses/>. The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <https://www.gnu.org/licenses/why-not-lgpl.html>.

简介

瀚文 智能键盘是一把我为自己使用需求设计的多功能、模块化机械键盘。 展开 收起
C 等 3 种语言
GPL-3.0
取消

发行版

暂无发行版

贡献者

全部

近期动态

加载更多
不能加载更多了
1
https://gitee.com/peng_zhihui/HelloWord-Keyboard.git
git@gitee.com:peng_zhihui/HelloWord-Keyboard.git
peng_zhihui
HelloWord-Keyboard
HelloWord-Keyboard
main

搜索帮助

14c37bed 8189591 565d56ea 8189591