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MSP430下载向导 Programmers_Guide_MSP430_USB_API

更新时间：2019-10-20 12:26:58 大小：2M 上传用户：p4s5j6查看TA发布的资源 标签：msp430usb 下载积分：1分 评价赚积分 （如何评价?） 打赏 收藏 评论(0) 举报

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Programmers_Guide_MSP430_USB_API

MSP430下载向导

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Programmers_Guide_MSP430_USB_API.pdf 2M

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（完整内容请下载后查看）
March 2011  
Programmer’s Guide: MSP430 USB API Stack for  
CDC/HID/MSC  
MSP430  
ABSTRACT  
The MSP430 USB API implements three USB device classes: the Communications  
Device Class (CDC), the Human Interface Device (HID) class, and.the Mass Storage  
class (MSC). It is designed for easy creation of USB devices on the MSP430.  
Contents  
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2
3
Introduction .....................................................................................................................................4  
The MSP430 USB Developers’ Package .......................................................................................4  
Glossary...........................................................................................................................................5  
3.1 USB Definitions .........................................................................................................................5  
3.2 API Stack Definitions.................................................................................................................6  
System Overview and Architecture...............................................................................................8  
4.1 MSP430 USB API Stacks: Overview........................................................................................8  
4.1.1 Devices Classes Supported by the MSP430 API Stacks ..............................................8  
4.1.2 Development Environments Supported by the API .......................................................8  
4.1.3 Hardware Requirements................................................................................................8  
4.1.4 USB Certification ...........................................................................................................9  
4.1.5 Stack Organization ........................................................................................................9  
4.1.6 Usage of MCU Peripheral Resources .........................................................................11  
4.1.7 Memory Requirements ................................................................................................11  
4.1.8 Using an RTOS ...........................................................................................................12  
4.1.9 Support for Composite USB Devices ..........................................................................12  
4.1.10 Release Notes, and Migration from Previous Versions...............................................13  
4.2 The Communications Device Class (CDC) API ......................................................................14  
4.3 The Human Interface Device (HID) API ..................................................................................17  
4.4 The Mass Storage Class (MSC) API.......................................................................................19  
MSP430 USB Descriptor Tool ......................................................................................................23  
5.1 What is the Tool? ....................................................................................................................23  
5.2 What is an “Interface”?............................................................................................................23  
5.3 What are USB Descriptors? ....................................................................................................23  
5.4 When to Use the Tool?............................................................................................................23  
5.5 Using the Tool .........................................................................................................................24  
5.6 The Tool’s Generated Output..................................................................................................26  
5.7 Accessing Interfaces from the Application ..............................................................................27  
5.8 USB Configurations.................................................................................................................27  
USB States/Events and How They Relate to the API.................................................................28  
6.1 Initializing the API....................................................................................................................29  
6.2 Detection of the Host via VBUS ..............................................................................................29  
6.3 Connection to the Host............................................................................................................30  
6.4 Enumeration............................................................................................................................30  
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