User`s guide

Virtual

COM Port

Storage

Volume

HID

Interface

HID Demo App (example)

MSP430's USB API

25+ USB Examples

USB Host: Windows,

Linux, Mac, Other

MSP430-Based

USB Device

CDC

Interface

Mass Storage

Interface

HID

Interface

Examples Guide

HID Demo Guide

Software

www.ti.com

Figure 3. USB Developers Package: Examples from TI

The red-circled examples help get you started in your development. Each is supported by documentation.

All these items are in the MSP430 USB Developers Package, and described further below.

3.2 USB API Stacks: Features

The API is the foundation of the MSP430 USB Developers Package. It supports three of the most

common USB device classes:

• Communications Device Class (CDC): (ACM class) Results in a virtual COM port on the host

• Human Interface Device class (HID): The MSP430 USB Developers Package defines four subtypes:

– Datapipe (an unformatted general-purpose interface resembling CDC)

– Mouse

– Keyboard

– Custom

• Mass Storage Class (MSC): When the host sees an MSC interface, it begins mounting a storage

volume from it.

These classes provide a good selection for general-purpose use. See Section 5.1 for a discussion of how

to choose your interface.

Features of the API include:

• Small peripheral footprint (only the USB module and XT2 oscillator)

• Small memory footprint

• Can use either the DMA or CPU to move data

• Provided as source code

• BSD-licensed, providing maximum flexibility

Starting a USB Design Using MSP430™ MCUs SLAA457A–September 2013–Revised May 2014

Submit Documentation Feedback