【极海APM32F407 Tiny Board】 4.LWIP移植

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【极海APM32F407 Tiny Board】 4.LWIP移植 [复制链接]

# 1 LWIP ## 1.1 LWIP简介 LwIP 是一款轻量化的 TCP/IP 协议，是瑞典计算机科学院(SICS)的 AdamDunkels 开发的一个小型开源的 TCP/IP 协议栈。在保持 TCP 协议主要功能的基础上减少对资源的占用。此外 LwIP 既可以移植到操作系统上运行，也可以在无操作系统的情况下独立运行。 可以在网页http://savannah.nongnu.org/projects/lwip/， 下载获取到 LwIP 的各个版本的源代码包和对应的contrib 包。 本次的移植目的是为了实现LWIP进行代码升级，因此本篇文章先实现底层功能，方便后续操作。 ## 1.2 硬件设计 开发板使用 APM32F407 控制器通过 RMII 接口和 SMI 接口与 LAN8720A 以太网 PHY 进行连接。通过接下拉电阻把 nINTSEL 引脚设置为低电平，从而使能 nINT/REFCLKO 引脚的输出功能为RMII 接口中 REF_CLK 信号线提供时钟信号， 硬件上 XTAL1 与 XTAL2 之间接入提供 25MHz时钟，经过 LAN8720A 内部 PLL 电路陪频后使得 nINT/REFCLKO 引脚的输出的时钟信号为50MHz 时钟。 <ignore_js_op> <img style="cursor:pointer;" id="aimg_795370" aid="795370" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213935po447jlfooccca41.png" file="data/attachment/forum/202403/17/213935po447jlfooccca41.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795370_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>1.png</strong> <em class="xg1">(114.87 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795370" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795370&handlekey=savephoto_795370">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> # 2 移植步骤 ## 2.1 底层驱动添加 这是官方提供的ETH驱动库，标准库中没有添加 <ignore_js_op> <img style="cursor:pointer;" id="aimg_795371" aid="795371" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213936s1sy1srj4asrhjr7.png" file="data/attachment/forum/202403/17/213936s1sy1srj4asrhjr7.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795371_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>2.png</strong> <em class="xg1">(20.21 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795371" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795371&handlekey=savephoto_795371">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 添加完如下所示： <ignore_js_op> <img id="aimg_795372" style="cursor:pointer;" aid="795372" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/17/213936segswbbe0g88e4yk.png" file="data/attachment/forum/202403/17/213936segswbbe0g88e4yk.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="460" id="aimg_795372" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795372_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>3.png</strong> <em class="xg1">(10.62 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795372" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795372&handlekey=savephoto_795372">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 添加LAN8720外设驱动，完成以太网的GPIO，时钟等配置，也相当于一个外设驱动文件。 <ignore_js_op> <img id="aimg_795373" style="cursor:pointer;" aid="795373" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/17/213937shcbm0mppbb03uhh.png" file="data/attachment/forum/202403/17/213937shcbm0mppbb03uhh.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="518" id="aimg_795373" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795373_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>4.png</strong> <em class="xg1">(9.58 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795373" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795373&handlekey=savephoto_795373">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> ## 2.2 添加Lwip源码 找到lwip-1.4.1\src\api文件，全部添加 <ignore_js_op> <img style="cursor:pointer;" id="aimg_795374" aid="795374" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213937vwj1lw2ww6tcsfjr.png" file="data/attachment/forum/202403/17/213937vwj1lw2ww6tcsfjr.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795374_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>5.png</strong> <em class="xg1">(15.52 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795374" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795374&handlekey=savephoto_795374">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> lwip-1.4.1\src\core\ipv4下文件全部添加： <ignore_js_op> <img id="aimg_795375" style="cursor:pointer;" aid="795375" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/17/213937we63enj6e6ic6491.png" file="data/attachment/forum/202403/17/213937we63enj6e6ic6491.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="670" id="aimg_795375" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795375_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>6.png</strong> <em class="xg1">(15.55 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795375" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795375&handlekey=savephoto_795375">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> lwip-1.4.1\src\core下除了ipv6以及snmp文件夹，其他源码全部添加： <ignore_js_op> <img style="cursor:pointer;" id="aimg_795376" aid="795376" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213938lnon8dd4ipop6g8o.png" file="data/attachment/forum/202403/17/213938lnon8dd4ipop6g8o.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795376_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>7.png</strong> <em class="xg1">(40.69 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795376" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795376&handlekey=savephoto_795376">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> lwip-1.4.1\src\netif下添加，etharp.c文件： <ignore_js_op> <img style="cursor:pointer;" id="aimg_795377" aid="795377" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213938bxq303l11ejy512v.png" file="data/attachment/forum/202403/17/213938bxq303l11ejy512v.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795377_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>8.png</strong> <em class="xg1">(10.64 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795377" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795377&handlekey=savephoto_795377">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 添加头文件路径，当然中间步骤太多，因此部分省略 <ignore_js_op> <img id="aimg_795378" style="cursor:pointer;" aid="795378" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/17/213939hkkfw9q8zlrly0yy.png" file="data/attachment/forum/202403/17/213939hkkfw9q8zlrly0yy.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="479" id="aimg_795378" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795378_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>9.png</strong> <em class="xg1">(9.46 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795378" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795378&handlekey=savephoto_795378">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 中间配置网卡等步骤省略，主要说明部分配置文件及实现逻辑，网络配置： <ignore_js_op> <img style="cursor:pointer;" id="aimg_795379" aid="795379" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213939lxzo59575u05u69m.png" file="data/attachment/forum/202403/17/213939lxzo59575u05u69m.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795379_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>10.png</strong> <em class="xg1">(55.87 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795379" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795379&handlekey=savephoto_795379">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> Lwip初始化，主要设置设置的IP地址，网关等 <ignore_js_op> <img style="cursor:pointer;" id="aimg_795380" aid="795380" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213940k5g66s1egg61hgjj.png" file="data/attachment/forum/202403/17/213940k5g66s1egg61hgjj.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795380_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>11.png</strong> <em class="xg1">(45.73 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795380" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795380&handlekey=savephoto_795380">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 主程序，网络配置初始化，通过串口打印网络配置信息： <ignore_js_op> <img style="cursor:pointer;" id="aimg_795381" aid="795381" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213940gk73x6chcmtt9e7l.png" file="data/attachment/forum/202403/17/213940gk73x6chcmtt9e7l.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795381_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>12.png</strong> <em class="xg1">(67.63 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795381" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795381&handlekey=savephoto_795381">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 程序验证lwip是否移植成功，主要通过电脑进行ping <ignore_js_op> <img id="aimg_795382" style="cursor:pointer;" aid="795382" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/17/213940n8zlgsf7is3cg3fk.png" file="data/attachment/forum/202403/17/213940n8zlgsf7is3cg3fk.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="607" id="aimg_795382" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795382_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>13.png</strong> <em class="xg1">(13.53 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795382" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795382&handlekey=savephoto_795382">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> 接下来配置电脑网络的相关配置： <ignore_js_op> <img style="cursor:pointer;" id="aimg_795383" aid="795383" src="static/image/common/none.gif" onclick="zoom(this, this.getAttribute('zoomfile'), 0, 0, '0')" zoomfile="data/attachment/forum/202403/17/213941afvk868ozc7262z6.png" file="data/attachment/forum/202403/17/213941afvk868ozc7262z6.png.thumb.jpg" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795383_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>14.png</strong> <em class="xg1">(108.74 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795383" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795383&handlekey=savephoto_795383">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op> # 3 验证 接下来打开电脑的CMD，ping一下开发板的ip，如下所示，lwip移植成功,文章是移植完后才写的，中间很多步骤省略。 <ignore_js_op> <img id="aimg_795384" style="cursor:pointer;" aid="795384" src="static/image/common/none.gif" zoomfile="data/attachment/forum/202403/17/213942grz82cb2w8zmt4rm.png" file="data/attachment/forum/202403/17/213942grz82cb2w8zmt4rm.png" class="zoom" onclick="zoom(this, this.src, 0, 0, 0)" width="536" id="aimg_795384" inpost="1" onmouseover="showMenu({'ctrlid':this.id,'pos':'12'})" /> <div class="tip tip_4 aimg_tip" id="aimg_795384_menu" style="position: absolute; display: none" disautofocus="true"> <div class="xs0"> <p><strong>15.png</strong> <em class="xg1">(13.68 KB, 下载次数: 0)</em></p> <p> <a href="javascript:;" class="loginf" >下载附件</a> <a href="javascript:;" onclick="showWindow(this.id, this.getAttribute('url'), 'get', 0);" id="savephoto_795384" url="home.php?mod=spacecp&ac=album&op=saveforumphoto&aid=795384&handlekey=savephoto_795384">保存到相册</a> </p> <p class="xg1 y">2024-3-17 21:39 上传</p> </div> <div class="tip_horn"></div> </div> </ignore_js_op>

lugl4313820

看PING的延时非常短，移植非常成功！