一型模糊逻辑系统，方法有SVD-QR、TSK的实现，包含train和test
2022-04-01 15:50:09
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博文链接：https://never-forget.iteye.com/blog/1833801
2022-03-24 19:12:05
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其中包括两个m文件，每个文件代表间隔类型2模糊逻辑系统的实现。 包括解释代码的 pdf 文件，以及详细讨论这些代码所基于的推理机制的推导的研究手稿副本。 此外，还包括一个 Simulink 文件。 它提供了使用所讨论的 IT2-FLC 机制平衡倒立摆的模拟。 提供了两个不同的 m 文件，每个文件都实现了不同的 IT2 模糊推理机制。 每个文件都被编程为具有两个输入和一个输出的 MATLAB 函数。 提供的所有控制器对每个输入使用三个隶属函数，如 pdf 文件中的图中所示。 为了控制隶属函数（即它们的位置）的传播，您可以使用输入和输出增益。 或者，您可以修改 m 文件以添加更多隶属函数并更改规则库。
2022-03-22 14:23:59
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Universal Serial Bus Type-C Cable and Connector Specification
Release 1.3 July 14, 2017
CONTENTS
Specification Work Group Chairs / Specification Editors ................................................... 11
Specification Work Group Contributors .................................................................................. 11
Pre-Release Draft Industry Reviewing Companies That Provided Feedback ................ 14
Revision History ............................................................................................................................. 14
1 Introduction ............................................................................................................................ 15
1.1 Purpose ......................................................................................................................... 15
1.2 Scope ............................................................................................................................. 15
1.3 Related Documents .................................................................................................... 16
1.4 Conventions ................................................................................................................. 16
1.4.1 Precedence .................................................................................................... 16
1.4.2 Keywords ...................................................................................................... 16
1.4.3 Numbering .................................................................................................... 17
1.5 Terms and Abbreviations ......................................................................................... 17
2 Overview ................................................................................................................................. 21
2.1 Introduction ................................................................................................................ 21
2.2 USB Type-C Receptacles, Plugs and Cables ......................................................... 22
2.3 Configuration Process ............................................................................................... 23
2.3.1 Source-to-Sink Attach/Detach Detection .............................................. 24
2.3.2 Plug Orientation/Cable Twist Detection ............................................... 24
2.3.3 Initial Power (Source-to-Sink) Detection and Establishing the Data
(Host-to-Device) Relationship ................................................................. 24
2.3.4 USB Type-C VBUS Current Detection and Usage .................................. 25
2.3.5 USB PD Communication ............................................................................. 25
2.3.6 Functional Extensions ................................................................................ 26
2.4 VBUS ............................................................................................................................... 26
2.5 VCONN ............................................................................................................................. 27
2.6 Hubs ............................................................................................................................... 27
3 Mechanical ............................................................................................................................... 28
3.1 Overview ...................................................................................................................... 28
3.1.1 Compliant Connectors................................................................................ 28
3.1.2 Compliant Cable Assemblies .................................................................... 28
3.1.3 Compliant USB Type-C to Legacy Cable Assemblies .......................... 28
3.1.4 Compliant USB Type-C to Legacy Adapter Assemblies ..................... 29
3.2 USB Type-C Connector Mating Interfaces ............................................................ 29
3.2.1 Interface Definition .................................................................................... 29
3.2.2 Reference Designs ....................................................................................... 52
3.2.3 Pin Assignments and Descriptions ......................................................... 59
3.3 Cable Construction and Wire Assignments ......................................................... 60
3.3.1 Cable Construction (Informative) ........................................................... 60
3.3.2 Wire Assignments ....................................................................................... 62
3.3.3 Wire Gauges and Cable Diameters (Informative) ............................... 63
3.4 Standard USB Type-C Cable Assemblies .............................................................. 65
3.4.1 USB Full-Featured Type-C Cable Assembly .......................................... 65
3.4.2 USB 2.0 Type-C Cable Assembly .............................................................. 66
3.4.3 USB Type-C Captive Cable Assemblies .................................................. 67
3.5 Legacy Cable Assemblies .......................................................................................... 67
3.5.1 USB Type-C to USB 3.1 Standard-A Cable Assembly .......................... 68
3.5.2 USB Type-C to USB 2.0 Standard-A Cable Assembly .......................... 69
3.5.3 USB Type-C to USB 3.1 Standard-B Cable Assembly .......................... 70
3.5.4 USB Type-C to USB 2.0 Standard-B Cable Assembly .......................... 71
3.5.5 USB Type-C to USB 2.0 Mini-B Cable Assembly ................................... 72
3.5.6 USB Type-C to USB 3.1 Micro-B Cable Assembly ................................. 73
3.5.7 USB Type-C to USB 2.0 Micro-B Cable Assembly ................................. 75
3.6 Legacy Adapter Assemblies ..................................................................................... 76
3.6.1 USB Type-C to USB 3.1 Standard-A Receptacle Adapter Assembly 76
3.6.2 USB Type-C to USB 2.0 Micro-B Receptacle Adapter Assembly ...... 78
3.7 Electrical Characteristics ......................................................................................... 79
3.7.1 Raw Cable (Informative) ........................................................................... 79
3.7.2 USB Type-C to Type-C Passive Cable Assemblies (Normative) ....... 80
3.7.3 Mated Connector (Informative) .............................................................. 93
3.7.4 USB Type-C to Legacy Cable Assemblies (Normative) ...................... 97
3.7.5 USB Type-C to USB Legacy Adapter Assemblies (Normative) ....... 101
3.7.6 Shielding Effectiveness Requirements (Normative) ........................ 103
3.7.7 DC Electrical Requirements (Normative) ........................................... 106
3.8 Mechanical and Environmental Requirements (Normative) ........................ 109
3.8.1 Mechanical Requirements ....................................................................... 109
3.8.2 Environmental Requirements ................................................................ 115
3.9 Docking Applications (Informative) ................................................................... 116
3.10 Implementation Notes and Design Guides ........................................................ 117
3.10.1 EMC Management (Informative) ........................................................... 117
3.10.2 Stacked and Side-by-Side Connector Physical Spacing
(Informative) .............................................................................................. 120
3.10.3 Cable Mating Considerations (Informative) ...................................... 120
4 Functional .............................................................................................................................. 122
4.1 Signal Summary ........................................................................................................ 122
4.2 Signal Pin Descriptions ........................................................................................... 122
4.2.1 SuperSpeed USB Pins ............................................................................... 122
4.2.2 USB 2.0 Pins ................................................................................................ 123
4.2.3 Auxiliary Signal Pins ................................................................................ 123
4.2.4 Power and Ground Pins ........................................................................... 123
4.2.5 Configuration Pins .................................................................................... 123
4.3 Sideband Use (SBU) ................................................................................................. 123
4.4 Power and Ground ................................................................................................... 123
4.4.1 IR Drop ......................................................................................................... 123
4.4.2 VBUS ............................................................................................................... 124
... ...
2022-03-22 10:23:20
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围绕USB Type-C接口的话题已经很火爆了，很多公司也推出了Type-C相关芯片。它的优势主要体现在不分正反双面接插、传输速度快、供电强悍、支持音视频传输。
我们知道，STM32芯片大多数型号都带USB DEVICE或USB OTG模块，随着Type-C接口的不断推广与普及，STM32芯片的USB模块如何与Type-C接口连接的问题，自然会逐渐出现在STM32应用工程师的面前。
ST官方有个应用笔记【AN4775】介绍了如何用USB Type-C替代传统USB 2.0连接器的方案建议。同时，笔记里也简单介绍了有关USB Type-C及USB电源传输的一些基础知识。
2022-03-21 10:25:24
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USBType-C:trade_mark:是一种小尺寸插座、插头和电缆标准。它具有可翻转连接器和可逆插电缆，能为用户带来舒适的体验。USBType-C连接器与现有的USB协议兼容，有望代替所有Type-A和Type-B连接器。此移动电源方案可提供高度集成的USBType-C电力输送(PD)功能，用于为笔记本电脑充电。
此设计采用USBType-CPD端口，可用于为已连接器件充电的拉电流电源或为移动电源充电的灌电流电源。次级USBType-A端口是一种纯拉电流端口，可实现BC1.2广播。
► 核心技术优势
1. TI PD 芯片 TPS65988 是一个全功能的TYPE-C控制芯片
2. TPS65988使用USB PD协议在CC线上进行通信。 完成电缆检测和USB PD协商后，TPS65988将启用适当的电源路径并为外部多路复用器配置备用模式设置。
3. 支援双阜 type-C PD 3.0 功能 ,体积小 整合度高 内建必要的电晶体开关在 供电/受电/保护 等等 简化设计
4. 搭配TI 充电管理IC BQ25703A 实现多种电压输入/输出 符合各种 移动装置和笔电的场合应用
► 方案规格
1. 支援最新PD 3.0 规范
2. 为外部设备充电，PD 输出高达20V / 2.25A
3. 使用PD输入至电池充电达20V / 2.25A
4. 输出功率 45W
5. 拓扑结构:降压升压 - 4开关，降压 - 同步
6. 支持Type-C 端口，满足 BC1.2通知和检测标准
7. 支持5V Type-A端口，符合 BC1.2通知和检测标准
方案来源于大大通。
2022-03-15 22:23:27
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该程序构造给定基矩阵、子矩阵大小以及行和列权重的 girth-8 类型 II qc-ldpc 代码。 子矩阵的基矩阵、权重和大小都是可变的。 该程序使用可能无法找到代码的搜索算法。 该程序可以运行多次以查找代码或简单地增加代码的大小。 奇偶校验矩阵存储在 H.
2022-03-14 12:49:16
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