我爱下载 发表于 2021-8-3 20:59

RVB2601评估板试用3: 以太网通讯测试

本帖最后由 我爱下载 于 2021-8-4 07:56 编辑

<p class="MsoTitle" style="text-align:center; margin-top:16px; margin-bottom:4px"><span style="font-size:16px;"><span style="150%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold">以太网通讯测试</span></span></span></span></p>

<h1 style="text-align:justify; margin-top:23px; margin-bottom:22px"><span style="font-size:20px;">1、概述</span></h1>

<h1 style="text-align:justify; margin-top:23px; margin-bottom:22px"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">RVB2601中集成的CH2601通过W800提供了AT透传的wifi 功能,可以完成和外界进行数据交换的需要。</span></span></span></h1>

<h1 style="text-align:justify; margin-top:23px; margin-bottom:22px"><span style="font-size:20px;"><span style="240%"><span style="font-family:宋体"><span style="font-weight:bold">2、驱动描述</span></span></span></span></h1>

<h2 style="text-align:justify; margin-top:17px; margin-bottom:17px"><span style="font-size:16px;"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold">2.1 硬件接口原理</span></span></span></span></h2>

<p style="text-align:justify"></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">CH2601采用SPI接口和W800进行数据交换,如图所示。</span></span></span></p>

<table align="center" class="MsoTableGrid" style="width:15.0cm; border-collapse:collapse; border:none" width="567">
        <tbody>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">序号</span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">W800</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:1px solid black; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">GPIO</span></span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">1</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">SPI CS</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">PA15</span>(SPI0_CS)</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">2</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">SPI MOSI</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">PA17</span>(SPI0_MOSI)</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">3</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">SPI MISO</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">PA18</span>(SPI0_MISO)</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">4</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">SPI&nbsp; CLK</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">PA16(SPI0_CLK)</span></span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">5</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">RST_N</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">PA21</span></span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid black; width:110px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:1px solid black">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">6</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:231px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">WAKEUP</span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid black; width:226px; padding:0cm 7px 0cm 7px; border-top:none; border-right:1px solid black; border-left:none">
                        <p align="center" style="text-align:center"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">PA25</span></span></span></span></p>
                        </td>
                </tr>
        </tbody>
</table>

<h2 style="text-align:justify; margin-top:17px; margin-bottom:17px"><span style="font-size:16px;"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold">2.2 软件驱动设计</span></span></span></span></h2>

<h3 style="text-align:justify; margin-top:17px; margin-bottom:17px"><span style="font-size:16px;"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold">2.2.1 网络管理</span></span></span></span></h3>

<p align="left" style="margin-bottom:14px; text-align:left"><span style="font-size:16px;"><span style="background:white"><span style="normal"><span style="font-family:宋体"><span style="color:#333333"><span style="letter-spacing:.15pt">网络管理支持有线网络、无线网络、</span></span><span lang="EN-US"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#333333"><span style="letter-spacing:.15pt">GPRS</span></span></span></span><span style="color:#333333"><span style="letter-spacing:.15pt">网络、</span></span><span lang="EN-US"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#333333"><span style="letter-spacing:.15pt">NB-IOT</span></span></span></span><span style="color:#333333"><span style="letter-spacing:.15pt">网络。我们只涉及到无线网络,所以这里就研究和网线网络相关的接口。网络管理接口如下所示:</span></span></span></span></span></span></p>

<table class="Table" style="width:15.0cm; background:white; border-collapse:collapse" width="567">
        <thead>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:white; border-top:1px solid #dddddd; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">函数</span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:white; border-top:1px solid #dddddd; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">说明</span></span></span></p>
                        </td>
                </tr>
        </thead>
        <tbody>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#333333"><span style="letter-spacing:.15pt">netmgr_dev_wifi_init</span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">无线设备初始化</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:#f8f8f8; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_service_init</span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:#f8f8f8; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">服务初始化</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_config_wifi</span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">无线配置</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:#f8f8f8; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_start</span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:#f8f8f8; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">使能网络设备</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_reset</span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">重置网络设备</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:#f8f8f8; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_stop</span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:#f8f8f8; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">停止网络链接</span></span></span></p>
                        </td>
                </tr>
                <tr>
                        <td style="border-bottom:1px solid #dddddd; width:255px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:1px solid #dddddd">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_is_gotip</span></span></span></span></span></span></span></p>
                        </td>
                        <td style="border-bottom:1px solid #dddddd; width:312px; padding:6px 13px 6px 13px; background-color:white; border-top:none; border-right:1px solid #dddddd; border-left:none">
                        <p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">网络设备是否获取到ip</span></span></span></p>
                        </td>
                </tr>
        </tbody>
</table>

<h2 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">1)网络管理接口详细说明</span></span></span></span></span></span></span></span></h2>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">网络设备初始化</span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">netmgr_hdl_t</span></span></span></span><code style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt"> netmgr_dev_wifi_init()</span></span></span></span></code></span></span></span></pre>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><code style="font-family:宋体"><span style="border: 1pt none windowtext; padding: 0cm;"><span style="color:#333333"><span style="letter-spacing:.15pt">函数说明:</span></span></span></code></span></span></span></pre>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span style="background:white">该函数会注册netmgr_dev_t结构中的provision配网等回调函数。同时打开已注册的wifi设备节点,调用该设备实现的hal层初始化接口。同时将该设备加入到网络设备列表中统一管理。</span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">返回值:</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">调用失败时返回NULL</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify">&nbsp;</p>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">服务初始化</span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">void</span></span></span></span> <span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_service_init</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt">(utask_t *task)</span></span></span></span></span></span></span></pre>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">初始化网络管理微服务。若外部微任务task为空,则内部创建微任务。同时将微服务加入到微任务中。</span></span></span></p>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">无线网络设备配置</span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">int</span></span></span></span> <span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_config_wifi</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt">(netmgr_hdl_t hdl, </span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">char</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt"> *ssid, uint8_t ssid_length, </span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">char</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt"> *psk, uint8_t psk_length)</span></span></span></span></span></span></span></pre>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">配置无线设备的ssid名称和对应的秘钥psk。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">若定义了CONFIG_KV_SMART配置,如在某solution下的package.yaml中配置了<code style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="background:#f7f7f7"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt">CONFIG_KV_SMART: 1</span></span></span></span></span></span></code>,则ssid和psk同时会被存储到kv文件系统中。对应的key定义如下:</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt">#</span></span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt">define</span></span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt"> KV_WIFI_SSID&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#718c00"><span style="letter-spacing:.15pt">&quot;wifi_ssid&quot;</span></span></span></span></span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt">#</span></span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt">define</span></span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#333333"><span style="letter-spacing:.15pt"> KV_WIFI_PSK&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="150%"><span style="font-family:Consolas"><span style="color:#718c00"><span style="letter-spacing:.15pt">&quot;wifi_psk&quot;</span></span></span></span></span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">返回值:</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span style="color:#858585">调用成功时返回0,否则返回-1。</span></span></span></span></p>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">使能网络设备</span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">int</span></span></span></span> <span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_start</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt">(netmgr_hdl_t hdl)</span></span></span></span></span></span></span></pre>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">当网络参数配置后,就可以调用该接口使能指定网络设备开始正常工作。该函数最终会调用到对应网络设备初始化配置的provision配网回调。</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">该接口是非阻塞的,网络连接成功后,网络管理器会上报EVENT_NETMGR_GOT_IP事件,否则上报EVENT_NETMGR_NET_DISCON事件。应用开发者可通过event_subscribe接口订阅这两个消息来判断网络是否连接成功。用户也可通过调用netmgr_is_gotip判断是否正常获取到ip。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">返回值:</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span style="color:#858585">调用成功时返回0,否则返回-1。</span></span></span></span></p>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">重置网络设备</span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">int</span></span></span></span> <span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_reset</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt">(netmgr_hdl_t hdl, uint32_t sec)</span></span></span></span></span></span></span></pre>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">复位网络设备连接,并在指定sec秒后自动重连。当sec为0时,复位后立即重连。该函数最终会调用到对应网络设备初始化配置的reset配网回调。该接口是非阻塞的。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">返回值:</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span style="color:#858585">调用成功时返回0,否则返回-1。</span></span></span></span></p>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">停止网络设备</span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">int</span></span></span></span> <span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_stop</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt">(netmgr_hdl_t hdl)</span></span></span></span></span></span></span></pre>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">停止指定网络设备运行。该函数最终会调用到对应网络设备初始化配置的unprovision配网回调。该接口是阻塞的。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">返回值:</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span style="color:#858585">调用成功时返回0,否则返回-1。</span></span></span></span></p>

<ul>
        <li>
        <h3 style="margin-top:20px; margin-bottom:14px; text-align:justify"><span style="font-size:16px;"><span style="background:white"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold"><span style="173%"><span style="color:#333333"><span style="letter-spacing:.15pt">网络设备是否获取到</span></span></span><span lang="EN-US"><span style="173%"><span style="font-family:&quot;Helvetica&quot;,&quot;sans-serif&quot;"><span style="color:#333333"><span style="letter-spacing:.15pt">ip</span></span></span></span></span></span></span></span></span></span></h3>
        </li>
</ul>

<pre>
<span style="font-size:16px;"><span style="background:#f7f7f7"><span style="font-family:宋体"><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8959a8"><span style="letter-spacing:.15pt">int</span></span></span></span> <span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#8e908c"><span style="letter-spacing:.15pt">netmgr_is_gotip</span></span></span></span><span lang="EN-US" style="border: 1pt none windowtext; padding: 0cm;"><span style="font-family:Consolas"><span style="color:#f5871f"><span style="letter-spacing:.15pt">(netmgr_hdl_t hdl)</span></span></span></span></span></span></span></pre>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">指定hdl的网络设备是否获取到ip。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">返回值:</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><span style="color:#858585">当前网络设备已经成功获取到ip时返回1,否则返回0</span></span></span></span></p>

<h3 style="text-align:justify; margin-top:17px; margin-bottom:17px"><span style="font-size:16px;"><span style="173%"><span style="font-family:宋体"><span style="font-weight:bold">2) SAL套接字适配层</span></span></span></span></h3>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">&nbsp;&nbsp;&nbsp; SAL<span style="background:white">组件完成对不同网络实现接口的抽象并对上层提供一组标准的 BSD Socket API,开发者只需关心和使用标准网络接口,而无需关心底层具体实现,极大的提高了系统的兼容性,方便开发者完成协议栈的适配和网络通信相关的开发。</span></span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">&nbsp;&nbsp;&nbsp; <span style="background:white">如下图所示,本次试用的RVB2601评估板采用的AT通道透传与W800芯片通讯完成以太网通讯功能。</span></span></span></span></p>

<p align="center" style="text-align:center"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体"><img alt="https://yoc.docs.t-head.cn/yocbook/assets/zh-cn/yoc/sal_arch.png" id="图片_x0020_3" src="https://yoc.docs.t-head.cn/yocbook/assets/zh-cn/yoc/sal_arch.png" style="width:270.75pt; height:177.75pt" /> </span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">&nbsp;&nbsp;&nbsp; 系统中提供了W800模块驱动中已经完成了SAL层接口的移植工作,因此在完成W800设备注册后,软件打开该设备的时候,驱动自动注册进SAL接口。后续的使用过程中,上层软件就感受不到ATPaser的存在了。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">&nbsp;&nbsp;&nbsp; 如下代码:</span></span></span></p>

<pre>
<code class="language-cpp">static int w800_dev_open(aos_dev_t *dev)
{

    // power on device

    sal_module_register(&amp;w800_sal_driver);

    sal_init();

    return 0;

}</code></pre>

<p style="text-align:justify"><span style="font-size:20px;"><span style="font-family: 宋体; font-weight: bold;">3、测试程序</span></span></p>

<p style="text-indent:21.0pt"><span style="font-size:16px;">&nbsp;本测试程序通过RVB2601建立一个TCPclient测试程序,与TCPServer通讯,完成TCPClient向TCPServer定时数据传递的功能。</span></p>

<h2 style="text-align:justify; margin-top:17px; margin-bottom:17px"><span style="font-size:16px;"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold"><span style="border:none windowtext 1.0pt; background:#f7f7f7; padding:0cm">3.1 初始化</span></span></span></span></span></h2>

<p style="text-align:justify"><span style="font-size:16px;"><span style="150%"><span style="font-family:宋体">注册的以太网事件回调接口函数</span></span></span></p>

<pre>
<code class="language-cpp">static void network_event(uint32_t event_id, const void *param, void *context)
{

    switch(event_id) {

    case EVENT_NETMGR_GOT_IP: {

        LOGD(TAG, "EVENT_NETMGR_GOT_IP");

    }
        break;

    case EVENT_NETMGR_NET_DISCON:

        LOGD(TAG, "EVENT_NETMGR_NET_DISCON");

        break;

    }

    /*do exception process */

    // app_exception_event(event_id);
}</code></pre>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">以太网设备初始化函数</span></span></span></p>

<pre>
<code class="language-cpp">static void network_init()
{

    w800_wifi_param_t w800_param;
    /* init wifi driver and network */

    w800_param.reset_pin      = PA21;
    w800_param.baud           = 1*1000000;
    w800_param.cs_pin         = PA15;
    w800_param.wakeup_pin     = PA25;
    w800_param.int_pin        = PA22;
    w800_param.channel_id     = 0;
    w800_param.buffer_size    = 4*1024;

    wifi_w800_register(NULL, &amp;w800_param);
    app_netmgr_hdl = netmgr_dev_wifi_init();

    if (app_netmgr_hdl) {
        utask_t *task = utask_new("netmgr", 2 * 1024, QUEUE_MSG_COUNT, AOS_DEFAULT_APP_PRI);
        netmgr_service_init(task);
        netmgr_config_wifi(app_netmgr_hdl, "Baidu-jy", 10, "12345678", 10);
        netmgr_start(app_netmgr_hdl);
        event_subscribe(EVENT_NETMGR_GOT_IP, network_event, NULL);
        event_subscribe(EVENT_NETMGR_NET_DISCON, network_event, NULL);
    }
}</code></pre>

<h2 style="text-align:justify; margin-top:17px; margin-bottom:17px"><span style="font-size:16px;"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold"><span lang="EN-US" style="border:none windowtext 1.0pt; background:#f7f7f7; padding:0cm">3.2 TCPClient</span><span style="border:none windowtext 1.0pt; background:#f7f7f7; padding:0cm">程序</span></span></span></span></span></h2>

<pre>
<code class="language-cpp">static char lan_buf;
int tcpclient(void)
{

    int                 iCounter;
    struct sockaddr_in  sAddr;
    int                 iAddrSize;
    int                 iSockFD;
    int                 iStatus;
    long                lLoopCount = 0;
    char            *cBsdBuf = NULL;
    int time_ms = aos_now_ms();
    int time_ms_step = aos_now_ms();
    int send_bytes = 0;

     running = 1;
    cBsdBuf = lan_buf;
    //filling the TCP server socket address

    FD_ZERO(&amp;sAddr);
    sAddr.sin_family = AF_INET;
    sAddr.sin_port = htons(26666);
    sAddr.sin_addr.s_addr = inet_addr("192.168.95.5");
    iAddrSize = sizeof(struct sockaddr_in);

    // creating a TCP socket
    iSockFD = socket(AF_INET, SOCK_STREAM, 0);

    if (iSockFD &lt; 0) {
        LOGE(TAG, "TCP ERROR: create tcp client socket fd error!");
        goto Exit1;
    }


    LOGD(TAG, "ServerIP=%s port=%d.", "192.168.95.5", 26666);
    LOGD(TAG, "Create socket %d.", iSockFD);
    // connecting to TCP server
   iStatus = connect(iSockFD, (struct sockaddr *)&amp;sAddr, iAddrSize);

    if (iStatus &lt; 0) {
        LOGE(TAG, "TCP ERROR: tcp client connect server error! ");
        goto Exit;
    }



    LOGD(TAG, "TCP: Connect server successfully.");
    // sending multiple packets to the TCP server
    printf("[  ID] Interval       Transfer     Bandwidth\n");

    while (running) {
         sprintf(cBsdBuf,"%02d",lLoopCount);
        // sending packet
        iStatus = send(iSockFD, cBsdBuf, strlen(cBsdBuf)+1, 0);

        if (iStatus &lt;= 0) {
            printf("TCP ERROR: tcp client send data error!  iStatus:%d", iStatus);
            goto Exit;
        }

        lLoopCount++;
        aos_msleep(100);

        if ((aos_now_ms() - time_ms) / 1000 &gt;  2) {
            break;
        }
    }

    LOGD(TAG, "TCP: Sent packets successfully.");
Exit:
    //closing the socket after sending 1000 packets
    close(iSockFD);

return 0;
}



</code></pre>

<p style="text-align:justify"><span style="font-size:16px;"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold"><span style="border:none windowtext 1.0pt; background:#f7f7f7; padding:0cm">3.3 通过console中调用</span></span></span></span></span></p>

<pre>
<code class="language-cpp">int tcpclient(void);
static void cmd_tcp_client_handler(char *wbuf, int wbuf_len, int argc, char **argv)
{
    tcpclient();
}



int cli_reg_cmd_ft(void)
{

    static const struct cli_command tcp_cmd_info = {
        "tcptest",
        "tcp client test",
        cmd_tcp_client_handler,
    };
    aos_cli_register_command(&amp;tcp_cmd_info);

    return 0;
}</code></pre>

<p style="text-align:justify"><span style="font-size:16px;"><span style="173%"><span style="font-family:&quot;等线 Light&quot;"><span style="font-weight:bold"><span lang="EN-US" style="border:none windowtext 1.0pt; background:#f7f7f7; padding:0cm">3.4 Linux</span><span style="border:none windowtext 1.0pt; background:#f7f7f7; padding:0cm">系统端的TCPServer测试程序</span></span></span></span></span></p>

<pre>
<code class="language-cpp">#include &lt;sys/types.h&gt;
#include &lt;sys/socket.h&gt;
#include &lt;stdio.h&gt;
#include &lt;stdlib.h&gt;
#include &lt;errno.h&gt;
#include &lt;unistd.h&gt;
#include &lt;netinet/in.h&gt;


#define SERVPORT 26666
#define BACKLOG 10
#define MAXDATASIZE 1024

int main() {
    struct sockaddr_in server_sockaddr;//声明服务器socket存储结构
    int sin_size,recvbytes;
    int sockfd,client_fd;//socket描述符
    char buf;//传输的数据

    //1.建立socket
    //AF_INET 表示IPV4
    //SOCK_STREAM 表示TCP
    if((sockfd = socket(AF_INET,SOCK_STREAM,0)) &lt; 0) {
        perror("Socket");
        exit(1);
    }

    printf("Socket successful!,sockfd=%d\n",sockfd);

    //以sockaddt_in结构体填充socket信息
    server_sockaddr.sin_family       = AF_INET;//IPv4
    server_sockaddr.sin_port         = htons(SERVPORT);//端口
    server_sockaddr.sin_addr.s_addr = INADDR_ANY;//本主机的任意IP都可以使用
    bzero(&amp;(server_sockaddr.sin_zero),8);//保留的8字节置零


    //2.绑定 fd与 端口和地址
    if((bind(sockfd,(struct sockaddr *)&amp;server_sockaddr,sizeof(struct sockaddr))) &lt; 0) {
        perror("bind");
        exit(-1);
    }

    printf("bind successful !\n");

    //3.监听
    if(listen(sockfd,BACKLOG) &lt; 0) {
        perror("listen");
       exit(1);
    }

    printf("listening ... \n");

     //4.接收请求,函数在有客户端连接时返回一个客户端socket fd,否则则阻塞
     //优化:这里同样可以使用select,以及poll来实现异步通信
     if((client_fd = accept(sockfd,NULL,&amp;sin_size)) == -1) {
         perror("accept");
         exit(1);
     }

     printf("accept success! client_fd:%d\n",client_fd);

    while(1){

     //5.接收数据
     //注意:这里传入的fd,不是建立的socket fd,而是accept返回的连接客户端 socket fd
     if((recvbytes = read(client_fd,buf,MAXDATASIZE)) == -1) {
         perror("recv");
         exit(1);
     }

    if(recvbytes == 0)
    {
     printf("client quit\n");
    break;
    }

    printf("received data %d: %s\n",recvbytes,buf);
   }

    //6.关闭
    close(sockfd);
}</code></pre>

<p style="text-align:justify">&nbsp;</p>

<p style="text-align:justify"><strong><span style="font-size:20px;"><span style="normal"><span style="font-family:宋体">4、实测效果演示:</span></span></span></strong></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">RVB2601</span>链接wifi并获取IP地址,IP地址为192.168.95.2</span></span></span></p>

<p style="text-align:justify"></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">服务器的IP地址为:192.168.95.5</span></span></span></p>

<p style="text-align:justify"></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">为了更好的展示通讯过程,在linux机器上运行tcpdump工具来抓取对应端口的网络数据包,通过wireshark分析这些数据包。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">我们在linux系统上打开两个终端。</span></span></span></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">一个终端运行tcpdump:</span></span></span></p>

<pre>
<code class="language-bash">sudo tcpdump tcp port 26666 and host 192.168.95.5 -i wlan0 -w ./1.cap</code></pre>

<p style="text-align:justify"><span style="font-family: 宋体; font-size: 16px;">另一个终端运行tcpserver软件。</span></p>

<p style="text-align:justify"></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">在RVB2601评估板的console中执行tcptest命令</span></span></span></p>

<p style="text-align:justify"></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体">通过wireshark的数据帧分析</span></span></span></p>

<p style="text-align:justify"></p>

<p style="text-align:justify"><strong><span style="font-size:20px;"><span style="normal"><span style="font-family:宋体">5、特殊情况总结</span></span></span></strong></p>

<p style="text-align:justify"><span style="font-size:16px;"><span style="normal"><span style="font-family:宋体"><span lang="EN-US">RVB2061</span>这种协议栈运行在W800的情况,无法实现TCPServer中accept和listen这些函数,因此,也就无法实现TCPServer这种功能了,只能采用TCPClient方式通讯。</span></span></span></p>

<p style="text-align:justify"></p>

soso 发表于 2021-8-4 10:20

<p>很详细,角度很全,期待后续</p>

freebsder 发表于 2021-8-4 16:47

<p>很详细!不支持server这就有点遗憾了。</p>
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