littleshrimp 发表于 2021-10-14 09:26

B-U585I-IOT02A使用WIFI功能使用

本帖最后由 littleshrimp 于 2021-10-14 09:25 编辑

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">在之前测试</span>B-U585I-IOT02A<span style="font-family:宋体">的</span>WIFI<span style="font-family:宋体">功能时跑官方例程一直没有通过,后来经过论坛管理员联系</span>ST<span style="font-family:宋体">的工程师很快得到答复,原来</span>SW2<span style="font-family:宋体">只需要将</span>BOOT<span style="font-family:宋体">拨到</span>0<span style="font-family:宋体">,我当时没仔细看,错误以为两个拨码都要拨到</span>0<span style="font-family:宋体">。</span></span></span></p>

<p style="text-indent:21.0pt; text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">回头再看</span>um2839-discovery-kit-for-iot-node-with-stm32u5-series-stmicroelectronics<span style="font-family:宋体">文档和原理图可以发现,无论是板子的丝印还是文档都已经标明拨码的</span>2<span style="font-family:宋体">个引脚的功能。</span></span></span></p>

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

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

<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">除了</span>BOOT SW2<span style="font-family:宋体">,另一个引脚功能为</span>EASYLINK<span style="font-family:宋体">,如果将它拨到</span>0<span style="font-family:宋体">难免会影响固件更新。</span></span></span></p>

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

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

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

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

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

<p align="left" style="text-align:left; text-indent:21.0pt"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">其实在</span>x-wifi-emw3080b<span style="font-family:宋体">固件包里还有一个文档,文档里的图片将</span>SW2<span style="font-family:宋体">的</span>PIN1<span style="font-family:宋体">用红框圈起来了,非常贴心。如果能在说明里把</span>BOOT<span style="font-family:宋体">后边回一个括号</span>BOOT(PIN1)<span style="font-family:宋体">就更完美了。</span></span></span> &nbsp;</p>

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

<p align="left" style="text-align:left; text-indent:21.0pt"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style="font-family:宋体">找到问题的原因后调试</span>WI-FI<span style="font-family:宋体">其实非常方便,首先是升级固件(我不确定是我的板子没有</span>EMW3080<span style="font-family:宋体">固件,还是所有的板子都没有,如果能在出厂前烧好会省去一些不必要的麻烦),将</span>SW2<span style="font-family:宋体">的</span>BOOT<span style="font-family:宋体">拨到</span>0<span style="font-family:宋体">,插上开发板,然后从</span>ST<span style="font-family:宋体">官网下载</span>x-wifi-emw3080b<span style="font-family:宋体">,找到</span>x-wifi-emw3080b\V2.1.11\SPI\EMW3080updateV2.1.11RevC.bin<span style="font-family:宋体">(版本号可能会不同),将它复制到</span>NOD_U585AI<span style="font-family:宋体">这个可移动磁盘上(</span>EMW3080<span style="font-family:宋体">的固件是通过</span>STM32U585<span style="font-family:宋体">升级的,这是一个包含了</span>EMW3080<span style="font-family:宋体">固件的</span>STM32U585<span style="font-family:宋体">固件),等待完成后打开串口软件准备对</span>EMW3080<span style="font-family:宋体">的固件进行升级。</span></span></span></p>

<p align="left" style="text-align:left; text-indent:21.0pt"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></p>

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

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

<p align="left" style="text-align:left; text-indent:21.0pt"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">复位</span>STM32U585<span style="font-family:宋体">,然后按一下蓝色的</span>B3<span style="font-family:宋体">按键,等待</span>EMW3080<span style="font-family:宋体">的固件升级完成后将</span>BOOT<span style="font-family:宋体">拨回</span>NC<span style="font-family:宋体">就可以正常使用</span>WI-FI<span style="font-family:宋体">功能了。</span></span></span></p>

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

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

<p align="left" style="text-align:left; text-indent:21.0pt"><span style="font-size:10.5pt"><span style="font-family:Calibri,sans-serif"><span style="font-family:宋体">官方的例程里提供了</span>WI-FI<span style="font-family:宋体">的例程,我使用</span>STM32Cube\Repository\STM32Cube_FW_U5_V1.0.0\Projects\B-U585I-IOT02A\Applications\WiFi\WiFiBasics<span style="font-family:宋体">进行测试,下载例程到</span>STM32U585<span style="font-family:宋体">后在串口助手里就可以看到</span>WI-FI<span style="font-family:宋体">正常工作,这是我附近的</span>WI-FI<span style="font-family:宋体">热点,奇怪,诺基亚</span>5110<span style="font-family:宋体">也能开热点吗?</span></span></span></p>

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

annysky2012 发表于 2021-10-14 11:20

<p>评测很详细,点赞,</p>

<p>你说的那个WIFI热点只是个名字而已,就比如有的WIFI热点叫:你是我女朋友。<img height="48" src="https://bbs.eeworld.com.cn/static/editor/plugins/hkemoji/sticker/facebook/lol.gif" width="48" /></p>

ly87802541 发表于 2022-1-19 17:14

<p>大佬厉害了,先mark下。</p>
页: [1]
查看完整版本: B-U585I-IOT02A使用WIFI功能使用