https://blog.youkuaiyun.com/myq889zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/myq889/article/details/166691957https://blog.youkuaiyun.com/myq889/article/details/166691957myq889Sat, 26 Sep 2026 19:53:53 +0800https://blog.youkuaiyun.com/myq889/article/details/166690686https://blog.youkuaiyun.com/myq889/article/details/166690686myq889Sat, 26 Sep 2026 16:54:41 +0800https://blog.youkuaiyun.com/myq889/article/details/137098148https://blog.youkuaiyun.com/myq889/article/details/137098148myq889Thu, 28 Mar 2024 09:10:23 +0800https://blog.youkuaiyun.com/myq889/article/details/136633068https://blog.youkuaiyun.com/myq889/article/details/136633068myq889Mon, 11 Mar 2024 19:42:17 +0800https://blog.youkuaiyun.com/myq889/article/details/136364144https://blog.youkuaiyun.com/myq889/article/details/136364144myq889Thu, 29 Feb 2024 10:35:17 +0800https://blog.youkuaiyun.com/myq889/article/details/136364085https://blog.youkuaiyun.com/myq889/article/details/136364085myq889Thu, 29 Feb 2024 10:26:13 +0800https://blog.youkuaiyun.com/myq889/article/details/136351100https://blog.youkuaiyun.com/myq889/article/details/136351100myq889Wed, 28 Feb 2024 17:19:07 +0800 HOST：并行 TxData -> bit Stufffer -> NRZI Encoder -> xmit -> D+/D- -> HOSTHOST -> Device：Host -> D+/D- -> NRZI Decoder -> Bit Unstuffer -> 并行Rx Data -> Device。对于学习USB2.0 我们可以研究UTMI+ level0 或者level1 就够了，高版本的协议无非是在旧有的协议基础上新增了一些信号处理。与UTMI+2相比，没有增加新的信号。]]>https://blog.youkuaiyun.com/myq889/article/details/136299827https://blog.youkuaiyun.com/myq889/article/details/136299827myq889Mon, 26 Feb 2024 15:05:00 +0800https://blog.youkuaiyun.com/myq889/article/details/136298948https://blog.youkuaiyun.com/myq889/article/details/136298948myq889Mon, 26 Feb 2024 14:40:07 +0800https://blog.youkuaiyun.com/myq889/article/details/136257369https://blog.youkuaiyun.com/myq889/article/details/136257369myq889Fri, 23 Feb 2024 15:41:21 +0800https://blog.youkuaiyun.com/myq889/article/details/136027415https://blog.youkuaiyun.com/myq889/article/details/136027415myq889Sun, 04 Feb 2024 15:49:05 +0800https://blog.youkuaiyun.com/myq889/article/details/136022191https://blog.youkuaiyun.com/myq889/article/details/136022191myq889Sun, 04 Feb 2024 11:07:15 +0800https://blog.youkuaiyun.com/myq889/article/details/135571387https://blog.youkuaiyun.com/myq889/article/details/135571387myq889Sat, 13 Jan 2024 16:03:05 +0800https://blog.youkuaiyun.com/myq889/article/details/130699044https://blog.youkuaiyun.com/myq889/article/details/130699044myq889Tue, 16 May 2023 09:54:06 +0800https://blog.youkuaiyun.com/myq889/article/details/130155606https://blog.youkuaiyun.com/myq889/article/details/130155606myq889Fri, 14 Apr 2023 15:52:45 +0800https://blog.youkuaiyun.com/myq889/article/details/129794517https://blog.youkuaiyun.com/myq889/article/details/129794517myq889Mon, 27 Mar 2023 14:18:45 +0800https://blog.youkuaiyun.com/myq889/article/details/129731027https://blog.youkuaiyun.com/myq889/article/details/129731027myq889Thu, 23 Mar 2023 14:57:31 +0800https://blog.youkuaiyun.com/myq889/article/details/129726338https://blog.youkuaiyun.com/myq889/article/details/129726338myq889Thu, 23 Mar 2023 10:55:11 +0800https://blog.youkuaiyun.com/myq889/article/details/129625903https://blog.youkuaiyun.com/myq889/article/details/129625903myq889Fri, 17 Mar 2023 18:08:17 +0800https://blog.youkuaiyun.com/myq889/article/details/128940051https://blog.youkuaiyun.com/myq889/article/details/128940051myq889Wed, 08 Feb 2023 17:50:16 +0800