查看“Micro:bit系列教程25：自定义Micro:bit软件”的源代码

<p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">当要使用<span lang="EN-US">Micro:bit</span>驱动非板载外设时，制作专用软件包并添加到项目，可提高程序的重复利用率，同时提高开发效率。<span lang="EN-US"></span></span></p>
<p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">本节将介绍如何制作<span lang="EN-US">Micro:bit</span>扩展软件包：<span lang="EN-US"></span></span></p>
<h1><span lang="EN-US" style="font-size:15.0pt;line-height:240%;font-family:黑体"><span style="mso-tab-count:1">  </span>1.</span><span style="font-size:15.0pt;
line-height:240%;font-family:黑体">搭载环境<span lang="EN-US"></span></span></h1>
<h2><span lang="EN-US" style="font-size:12.0pt;line-height:173%;font-family:宋体"><span style="mso-tab-count:1">  </span></span><span lang="EN-US" style="font-size:12.0pt;
line-height:173%;font-family:黑体">1.1.</span><span style="font-size:12.0pt;
line-height:173%;font-family:黑体">安装<span lang="EN-US">node.js</span></span></h2>
<p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">下载地址：</span><span lang="EN-US"><span style="font-size:12.0pt;line-height:150%;
font-family:宋体">https://nodejs.org/en/</span></span><span style="font-size:
12.0pt;line-height:150%;font-family:宋体">，根据<span lang="EN-US">32</span>位或<span lang="EN-US">64</span>位系统下载不同版本，并安装，推荐安装官方推荐版本：<span lang="EN-US"></span></span></p>
<p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-0.png|400px]]</p>
<p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">检查是否安装成功：打开<span lang="EN-US">Windows</span>命令行，输入<span lang="EN-US">node -v,</span>输出版本号则表明安装成功：<span lang="EN-US"></span></span></p>
<p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-1.png|400px]]</p>
<p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">若未正常显示版本号，请将安装路径添加到系统环境变量，或重新安装<span lang="EN-US">node.js</span></span></p>
<h2><span lang="EN-US" style="font-size:12.0pt;line-height:173%;font-family:黑体">1.2.</span><span style="font-size:12.0pt;line-height:173%;font-family:黑体">安装<span lang="EN-US">pxt</span>命令行工具<span lang="EN-US"></span></span></h2>
<p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体"><span style="mso-tab-count:1">  </span></span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">打开<span lang="EN-US">Windows</span>命令行，输入：<span lang="EN-US"></span></span></p>
<pre style="line-height:150%;tab-stops:21.75pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><span lang="EN-US"><span style="mso-tab-count:1">    </span></span><span style="mso-bookmark:_Hlk524710277"></span><span courier="" lang="EN-US" new="" style="mso-bidi-font-family:
">npm install -g pxt</span></pre>
<h2> <span style="font-weight: 400; font-size: 12pt; line-height: 24px; font-family: 宋体;">打若出现以下提示，则成功安装：</span></h2><div><span style="font-weight: 400; font-size: 12pt; line-height: 24px; font-family: 宋体;"><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-2.png|400px]]</p></span></div><h2><span lang="EN-US" style="font-size:12.0pt;line-height:173%;font-family:黑体">1.3.</span><span style="font-size:12.0pt;line-height:173%;font-family:黑体">安装<span lang="EN-US">Visual
Studio Code</span></span></h2>
<p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">下载地址：</span><span lang="EN-US"><span style="font-size:
12.0pt;line-height:150%;font-family:宋体">https://code.visualstudio.com/</span></span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">，根据<span lang="EN-US">32</span>位或<span lang="EN-US">64</span>位系统选择不同的版本下载安装，该工具为官方推荐工具，编辑<span lang="EN-US">TypeScript</span>脚本时有语法提示，错误检查等，推荐使用。<span lang="EN-US"></span></span></p>
<p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">检查是否安装成功：打开<span lang="EN-US">Windows</span>控制台，输入<span lang="EN-US">code -v,</span>输出版本号则表明安装成功：<span lang="EN-US"></span></span></p>
<p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-3.png|400px]]</p>
<p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">若未正常显示版本号，请将安装路径添加到系统环境变量，或重新安装<span lang="EN-US">Visual Studio Code</span>。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体"></span></p><h2><span lang="EN-US" style="font-size: 12pt; line-height: 27.68px; font-family: 黑体;">1.4</span><span lang="EN-US" style="font-size: 12pt; line-height: 27.68px; font-family: 黑体;">.</span><span style="font-size: 12pt; line-height: 27.68px; font-family: 黑体;">安装Git</span></h2><div><span style="font-size: 10.5pt; font-family: 等线; color: rgb(51, 51, 51);">下载地址：</span><span lang="EN-US" style="font-size: 10.5pt; font-family: 等线;"><span courier="" new="" style="font-family:">https://git-scm.com/</span></span><span style="font-size: 10.5pt; font-family: 等线; color: rgb(51, 51, 51);">，</span><span style="font-size: 10.5pt; font-family: 等线;">根据<span lang="EN-US">32</span>位或<span lang="EN-US">64</span>位系统选择不同的版本下载安装，发布软件包的时候需要用到该软件。</span></div><div><h2><span lang="EN-US" style="font-size:12.0pt;line-height:173%;font-family:黑体">1.5</span><span lang="EN-US" new="" roman="" style="font-size:12.0pt;line-height:173%;font-family:黑体;mso-bidi-font-family:
" times="">.</span><span new="" roman="" style="font-size:12.0pt;line-height:173%;font-family:黑体;mso-bidi-font-family:
" times="">加载工具链<span lang="EN-US"></span></span></h2><div><span style="line-height: 173%;"><div style=""><font face="黑体"><span style="font-size: 16px;">新建文件夹，(注意:制作的软件包也需放至该文件夹的子文件夹下，本次操作是在E:\Program\Project\MicroBit_Project\Server路径建立microbit文件夹)</span></font></div><div style=""><font face="黑体"><span style="font-size: 16px;">在microbit文件夹下加载Micro:bit工具链，打开Windows命令行进入该文件夹，输入：</span></font></div><div style=""><div><pre class="brush:cpp;auto-links:false;">pxt target microbit</pre></div> <br/></div><div style=""><font face="黑体"><span style="font-size: 16px;">该过程可能持续几分钟，如果出现如下提示，则表明Micro:bit工具链加载成功：</span></font></div><div style=""><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-4.png|400px]]</p><p>此时输入:</p><div><pre class="brush:cpp;auto-links:false;">pxt help</pre></div><p>可查看pxt的命令行帮助:</p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-5.png|400px]]</p><p>打开microbit文件夹，可见该文件夹下新增如下文件：</p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-6.png|400px]]</p><h1><span lang="EN-US" style="font-size: 15pt; line-height: 48px; font-family: 黑体;">  2.生成软件包所需文件</span></h1><div><span lang="EN-US" style="line-height: 48px;"><div style="">在microbit文件夹下，建立projects文件夹，(注意，必须命名为projects，当执行pxt serve命令时，将会寻找projects文件夹)。</div><div style="">进入projects文件夹，新建文件夹，并以软件包名称命名(最终会将该文件夹下所有文件上传至Github，本次操作中，在projects文件夹下新建MCP23017文件夹)，如下图所示：</div><div style=""><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-7.png|400px]]</p><p>打开Windows命令行，进入到新建的以软件包名称命名的文件夹 (本次进入到MCP23017文件夹)，执行以下命令，生成软件包所需的部分文件：</p><div><pre class="brush:cpp;auto-links:false;">pxt init</pre></div><p> </p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-8.png|400px]]</p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">此操作需输入相关信息，分别如下：<span lang="EN-US"></span></span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体">name</span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">：模块名称，为软件包名称，该名称将来也将显示到<span lang="EN-US">makecode</span>界面中。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体">description</span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">：对软件包功能的描述，用<span lang="EN-US">makecode</span>加载软件包时将展示。<span lang="EN-US"></span></span></p><p>
</p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体">license:</span><span lang="EN-US"> </span><span style="font-size:12.0pt;line-height:150%;font-family:
宋体">软件授权条款</span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">输入相关信息后，<span lang="EN-US">MCP23017</span>文件夹下新增了如下文件：<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体"></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-9.png|400px]]</p><p><br/></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">其中<span lang="EN-US">pxt.json</span>则记录了模块名称，软件包描述，软件授权条款等信息，如下图所示：</span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体"></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-10.png|400px]]</p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">数据以<span lang="EN-US">json</span>键值对的形式存储，如果需要修改数据，修改键对应的值即可。<span lang="EN-US"></span></span></p><h1><span lang="EN-US" style="font-size:15.0pt;line-height:240%;font-family:黑体">3.</span><span style="font-size:15.0pt;line-height:240%;font-family:黑体">设计驱动代码及图形块<span lang="EN-US"></span></span></h1><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">打开<span lang="EN-US">Windows</span>命令行，进入到新建的以软件包名称命名的文件夹<span lang="EN-US"> (</span>本次进入到<span lang="EN-US">MCP23017</span>文件夹<span lang="EN-US">)</span>，输入以下命令，采用<span lang="EN-US">Visual Studio Code </span>打开该项目<span lang="EN-US">:</span></span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体">code .</span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">输入回车后，<span lang="EN-US">VS Code</span>打开了该项目<span lang="EN-US">(pxt init</span>命令生成的就是一个<span lang="EN-US">VS Code</span>项目<span lang="EN-US">)</span>：<span lang="EN-US"></span></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-11.png|400px]]</p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">由于是制作软件包，不需要<span lang="EN-US">main.ts</span>文件，因此，将<span lang="EN-US">main.ts</span>重命名为 <span lang="EN-US">mcp23017.ts</span>，并在该文件下采用<span lang="EN-US">TypeScrip</span>编写<span lang="EN-US">MCP23017</span>的驱动代码，设计图形块<span lang="EN-US">(</span>图形块与注释相关联，图形块设计请参考：<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">https://makecode.com/defining-blocks</span></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体"></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">),</span><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">之后，将<span lang="EN-US">pxt.json</span>文件中<span lang="EN-US">”file”:</span>下的<span lang="EN-US">main.ts</span>修改为<span lang="EN-US">MCP23017.ts</span>，如下图所示：
<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体"></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-12.png|400px]]</p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-13.png|400px]]</p><p>
</p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">MCP23017</span><span style="font-size:
12.0pt;line-height:150%;font-family:宋体">驱动及图形块代码如下图所示：<span lang="EN-US"></span></span></p></div></span></div></div><div style="font-family: 黑体; font-size: 12pt;"><div><h3>  cpp代码：</h3><syntaxhighlight lang="c">/**
 * 使用此文件来定义自定义函数和图形块。
 * 想了解更详细的信息，请前往 https://makecode.microbit.org/blocks/custom
 */

/**
 * 自定义图形块
 */

enum REGISTER {
    IODIRA = 0x00,
    IODIRB = 0x01,
    IPOLA = 0x02,
    IPOLB = 0x03,
    GPINTENA = 0x04,
    GPINTENB = 0x05,
    DEFVALA = 0x06,
    DEFVALB = 0x07,
    INTCONA = 0x08,
    INTCONB = 0x09,
    IOCONA = 0x0A,
    IOCONB = 0x0B,
    GPPUA = 0x0C,
    GPPUB = 0x0D,
    INTFA = 0x0E,
    INTFB = 0x0F,
    INTCAPA = 0x10,
    INTCAPB = 0x11,
    GPIOA = 0x12,
    GPIOB = 0x13,
    OLATA = 0x14,
    OLATB = 0x15
}

enum PIN {
    A = 0,
    B = 1
}

//% weight=5 color=#9900CC icon="\uf53b"
namespace MCP23017 {
    const MCP23017_ADDRESS = 0x20

    const MCP23017_IODIRA = 0x00
    const MCP23017_IPOLA = 0x02
    const MCP23017_GPINTENA = 0x04
    const MCP23017_DEFVALA = 0x06
    const MCP23017_INTCONA = 0x08
    const MCP23017_IOCONA = 0x0A
    const MCP23017_GPPUA = 0x0C
    const MCP23017_INTFA = 0x0E
    const MCP23017_INTCAPA = 0x10
    const MCP23017_GPIOA = 0x12
    const MCP23017_OLATA = 0x14

    const MCP23017_IODIRB = 0x01
    const MCP23017_IPOLB = 0x03
    const MCP23017_GPINTENB = 0x05
    const MCP23017_DEFVALB = 0x07
    const MCP23017_INTCONB = 0x09
    const MCP23017_IOCONB = 0x0B
    const MCP23017_GPPUB = 0x0D
    const MCP23017_INTFB = 0x0F
    const MCP23017_INTCAPB = 0x11
    const MCP23017_GPIOB = 0x13
    const MCP23017_OLATB = 0x15

    let initialized = false

    function i2cwrite(addr: number, reg: number, value: number): void {
        let buf = pins.createBuffer(2);
        buf[0] = reg;
        buf[1] = value;
        pins.i2cWriteBuffer(addr, buf);
    }

    function i2cread(addr: number, reg: number): number {
        pins.i2cWriteNumber(addr, reg, NumberFormat.UInt8BE);
        let val = pins.i2cReadNumber(addr, NumberFormat.UInt8BE);
        return val;
    }

    function initMCP23017(): void {
        for (let regAddr = 0; regAddr &lt; 22; regAddr++) {
            if (regAddr == 0 || regAddr == 1) {
                i2cwrite(MCP23017_ADDRESS, regAddr, 0xFF);
            }
            else {
                i2cwrite(MCP23017_ADDRESS, regAddr, 0x00);
            }
        }

        //configue all PinA output
        i2cwrite(MCP23017_ADDRESS, MCP23017_IODIRA, 0x00);

        //configue all PinB input
        i2cwrite(MCP23017_ADDRESS, MCP23017_IODIRB, 0xFF);
        //configue all PinB pullUP
        i2cwrite(MCP23017_ADDRESS, MCP23017_GPPUB, 0xFF);

        initialized = true;
    }


    /**
         *Read data from the register
         * @param reg [0-21] register of mcp23017; eg: 0, 15, 23
        */
    //% blockId=ReadReg block="Read register |%reg| data"
    //% weight=65
    export function ReadReg(reg: REGISTER): number {
        let val = i2cread(MCP23017_ADDRESS, reg);
        return val;
    }


        /**
         * WriteData to PinA or PinB
         * @param pin [0-1] choose PinA or PinB; eg: 0, 1
     * @param value [0-255] pulse of servo; eg: 128, 0, 255
        */
    //% blockId=WritePin block="Set P |%pin| value |%value|"
    //% weight=75
    //% value.min=0 value.max=255
    export function WritePin(pin: PIN, value: number): void {
        if (!initialized) {
            initMCP23017();
        }
        if (pin == 0) {
            i2cwrite(MCP23017_ADDRESS, MCP23017_GPIOA, value);
        }
        else {
            i2cwrite(MCP23017_ADDRESS, MCP23017_GPIOB, value);
        }
    }

        /**
         *ReadData From PinA or PinB
         * @param pin [0-1] choose PinA or PinB; eg: 0, 1
        */
    //% blockId=ReadPin block="Read data from |%pin|"
    //% weight=85
    export function ReadPin(pin: PIN): number {
        if (!initialized) {
            initMCP23017();
        }
        if (pin == 0) {
            let val = i2cread(MCP23017_ADDRESS, MCP23017_GPIOA);
            return val;
        }
        else {
            let val = i2cread(MCP23017_ADDRESS, MCP23017_GPIOB);
            return val;
        }
    }
}
</syntaxhighlight></div> <h1><span lang="EN-US" style="font-size: 15pt; line-height: 240%;">4.</span><span style="font-size: 15pt; line-height: 240%;">编写测试代码<span lang="EN-US"></span></span></h1>
<p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">在采用<span lang="EN-US">pxt
init </span>生成的文件中，<span lang="EN-US">test.ts</span>文件为测试文件，当作为软件包添加到其它项目中时，该文件不会被编译，而作为开发流程中的功能测试时，该文件将会被编译，且单独执行。<span lang="EN-US"></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">现编写测试代码，对输出功能进行测试<span lang="EN-US">:</span></span></p>
<p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-14.png|400px]]</p>
<p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">在该测试代码中，其操作为对<span lang="EN-US">MCP23017</span>的<span lang="EN-US">A</span>引脚的输出寄存器写入十进制数值：<span lang="EN-US">85,</span>其二进制为：<span lang="EN-US">01010101</span>，对应<span lang="EN-US">PA0</span>至<span lang="EN-US">PA7</span>的电平状态分别为：高低高低高低高低。<span lang="EN-US"></span></span></p>
<p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">此次测试代码为：<span lang="EN-US"></span></span></p><div><h3>  cpp代码：</h3><pre class="brush:cpp;auto-links:false;">/* tests go here; this will not be compiled when this package is used as a library*/
basic.forever(() =&gt; {
    MCP23017.WritePin(0,85);
})
</pre></div><h1><span lang="EN-US" style="font-size: 15pt; line-height: 240%;">5.</span><span style="font-size: 15pt; line-height: 240%;">编译检查，测试<span lang="EN-US"></span></span></h1><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">先进行语法检查，如果有语法出错，<span lang="EN-US">VS code </span>会进行提示，及时在<span lang="EN-US">VS Code</span>中改正即可：<span lang="EN-US"></span></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-15.png|400px]]</p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">打开<span lang="EN-US">Windows</span>命令行，进入到新建的以软件包名称命名的文件夹<span lang="EN-US"> (</span>本次进入到<span lang="EN-US">MCP23017</span>文件夹<span lang="EN-US">)</span>，进行以下操作：<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">编译：<span lang="EN-US">(</span>可选<span lang="EN-US">) </span>在命令行输入：<span lang="EN-US">pxt build,</span>该步骤主要方便检查语法错误，实际中，<span lang="EN-US">VS Code</span>能够提示语法错误，可先在<span lang="EN-US">VS Code</span>中修改语法错误。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">编译并下载：<span lang="EN-US">(</span>可选<span lang="EN-US">)</span>在命令行输入：<span lang="EN-US">pxt deploy,</span>该步骤为先编译，编译成功后直接下载，实际中，通过<span lang="EN-US">makecode</span>进行下载更便捷。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">打开<span lang="EN-US">makecode</span>进行编辑并下载：（推荐）<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">在命令行进入到<span lang="EN-US">microbit</span>路径<span lang="EN-US">(</span>该路径下包含<span lang="EN-US">projects</span>文件夹，运行<span lang="EN-US">pxt serve</span>将寻找<span lang="EN-US">projects</span>文件夹，若找不到，则将自动创建新项目，因此必须先进入到含有<span lang="EN-US">projects</span>子文件夹的<span lang="EN-US">microbit</span>文件夹<span lang="EN-US">)</span>，如下所示：<span lang="EN-US"></span></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-16.png|400px]]</p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">  </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">在此基础上，在命令行输入：<span lang="EN-US">pxt serve,</span>运行<span lang="EN-US">makecode </span>服务器，自动打开<span lang="EN-US">makecode</span>网页：<span lang="EN-US"></span></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-17.png|400px]]</p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">此时，软件包已经加载到左侧，可预览软件包的颜色及图标，并可对图形块进行移动，如下图所示：<span lang="EN-US"></span></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-18.png|400px]]</p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">但是，在<span lang="EN-US">test.ts</span>文件中，仅能以<span lang="EN-US">JavaScript</span>代码的形式进行显示。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">连接<span lang="EN-US">microbit</span>，点击左下角的<span lang="EN-US">download</span>，程序将下载到<span lang="EN-US">microbit</span>中，运行的是<span lang="EN-US">test.ts</span>文件中的代码。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">
</span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">下载后，将<span lang="EN-US">MCP23017</span>的<span lang="EN-US">PA0-PA7</span>连接至<span lang="EN-US">8</span>个<span lang="EN-US">LED(</span>低电平亮<span lang="EN-US">)</span>，观察得，<span lang="EN-US">PA0-PA7</span>连接的<span lang="EN-US">LED</span>分别为灭亮灭亮灭亮灭亮，软件包测试通过。<span lang="EN-US"></span></span></p><h1><span lang="EN-US" style="font-size: 15pt; line-height: 240%;">6.</span><span style="font-size: 15pt; line-height: 240%;">发布<span lang="EN-US"></span></span></h1><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">    </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">软件包测试通过后，将其发布到<span lang="EN-US">Github</span>，此次发布的本地仓库为<span lang="EN-US">MCP23017</span>文件夹，具体发布流程请参考廖雪峰的<span lang="EN-US">Git</span>教程：<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US"><span style="font-size:12.0pt;line-height:
150%;font-family:宋体">https://www.liaoxuefeng.com/</span></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体"></span></p><p class="MsoNormal" style="text-indent:21.0pt;line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">最后，打开<span lang="EN-US">Windows</span>命令行进入到<span lang="EN-US">MCP23017</span>文件夹，输入<span lang="EN-US">pxt bump</span>命令，修改版本号<span lang="EN-US">(</span>修改<span lang="EN-US">pxt.json</span>文件中<span lang="EN-US">version</span>键对应的值<span lang="EN-US">)</span>。<span lang="EN-US"></span></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US" style="font-size:
12.0pt;line-height:150%;font-family:宋体">    </span><span style="font-size:12.0pt;line-height:150%;font-family:宋体">将软件包发布后，即可根据<span lang="EN-US">Github</span>仓库链接找到软件包，可在<span lang="EN-US">makecode</span>中自由扩展该软件包到项目中了。<span lang="EN-US"></span></span></p><p>[[File:Micro：bit系列教程25：自定义Micro：bit软件包-19.png|400px]]</p><h1><span style="font-size: 15pt; line-height: 240%;">参考链接<span lang="EN-US"></span></span></h1><p class="MsoNormal" style="line-height:150%"><b><span style="font-size:12.0pt;line-height:150%;font-family:宋体">搭建环境，及<span lang="EN-US">Github</span>的使用：<span lang="EN-US"></span></span></b></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US"><span style="font-size:12.0pt;line-height:150%;
font-family:宋体">https://makecode.com/cli</span></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体"></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US"><span style="font-size:
12.0pt;line-height:150%;font-family:宋体">https://makecode.com/packages/getting-started</span></span><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:宋体"></span></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">https://makecode.com/packages/getting-started/vscode</span></span><span class="MsoHyperlink"><span lang="EN-US" style="font-size:12.0pt;line-height:150%;
font-family:宋体"></span></span></p><p class="MsoNormal" style="line-height:150%"><b><span style="font-size:12.0pt;line-height:150%;font-family:宋体">图形块定义<span lang="EN-US"></span></span></b></p><p class="MsoNormal" style="line-height:150%"><span lang="EN-US"><span style="font-size:12.0pt;
line-height:150%;font-family:宋体">https://makecode.com/defining-blocks</span></span><span class="MsoHyperlink"><span lang="EN-US" style="font-size:12.0pt;line-height:150%;
font-family:宋体"></span></span></p><p class="MsoNormal" style="line-height:150%"><b><span lang="EN-US" style="font-size:12.0pt;line-height:150%;font-family:
宋体">Github</span></b><b><span style="font-size:12.0pt;line-height:150%;font-family:宋体">教程<span lang="EN-US"></span></span></b></p><p class="MsoNormal" style="line-height:150%"><span style="font-size:12.0pt;line-height:150%;font-family:宋体">
<span lang="EN-US" mso-bidi-theme-font:minor-bidi="" new="" roman="" style="font-size:10.5pt;mso-bidi-font-size:11.0pt;font-family:
等线;mso-ascii-theme-font:minor-latin;mso-fareast-theme-font:minor-fareast;
mso-hansi-theme-font:minor-latin;mso-bidi-font-family:" times="" zh-cn=""><span style="font-size:12.0pt;font-family:宋体">https://www.liaoxuefeng.com/</span></span></span></p></div></span></div><span style="font-size: 10.5pt; font-family: 等线;"></span></div>