<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[XIAOCAI_LEVEL0的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; XIAOCAI_LEVEL0]]></copyright><item><title><![CDATA[STM32-USB学习之USB基础知识扫盲]]></title><link>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0/article/details/130235367</link><guid>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0/article/details/130235367</guid><author>XIAOCAI_LEVEL0</author><pubDate>Wed, 19 Apr 2023 09:02:04 +0800</pubDate><description><![CDATA[在分析那个设备描述符的流程时会发现，必须在每次事务的开始，要使用Token（令牌包）确认该次事务的传输“基调”。三个方面对USB通讯整个过程扫盲，其中有些知识点的详细信息会放在文章最下面的附录中供查看，从而保证文章的整体简洁。对于插入的USB设备，主机需要发送比较短的请求来确认设备的身份、类型、速度等信息，这个过程称之为。搞懂了描述符，调好了枚举，就完成了USB通讯的一大半，下面就对描述符进行详细的探索。因为要求实时性，对数据准确性不是很敏感，所以同步传输中的事务是没有握手包的，如下图。]]></description><category></category></item><item><title><![CDATA[ESP32+MicroPython学习记录02-网络]]></title><link>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0/article/details/121790781</link><guid>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0/article/details/121790781</guid><author>XIAOCAI_LEVEL0</author><pubDate>Wed, 08 Dec 2021 16:21:24 +0800</pubDate><description><![CDATA[ESP32,MicroPython,wifi]]></description><category></category></item><item><title><![CDATA[ESP32+MicroPython学习记录01--LED闪烁]]></title><link>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0/article/details/121715237</link><guid>https://blog.youkuaiyun.com/XIAOCAI_LEVEL0/article/details/121715237</guid><author>XIAOCAI_LEVEL0</author><pubDate>Sat, 04 Dec 2021 14:35:48 +0800</pubDate><description><![CDATA[ESP32,MicroPython]]></description><category></category></item></channel></rss>