Embedded Systems that Are on Both Sides of the Bus

It is possible that your embedded system might need to be both a USB host and a USB device. You can use both Nucleus USB Host and Nucleus USB Function in the same system running at the same time. For example, it might use printers and share data with a PC at the same time.

Typical USB host and device

Creating USB Peripherals:

You might be planning on leveraging the ubiquity of USB on desktop PCs as a low cost peripheral interconnection. USB devices are not limited to common PC peripherals; they can be as large as an industrial controller being controlled by a remote PC or as small as a network adapter.

USB devices are USB functions; examples include hard drives, printers, audio devices, medical equipment (for remote data acquisition and control), cameras (to expose shared data), keyboards, mice, and plenty more. Nucleus USB Function real-time software is used to create embedded systems that are USB functions.

Function side - Applications that could be used with set-top box

Using USB Peripherals:

You might be planning on leveraging existing USB peripherals to speed development, increase flexibility, or to simply reduce your system's overall cost. USB hosts are not limited to desktop PCs; they can be embedded systems as large as a milling machine or as small as a camera.

USB hosts use USB functions; example hosts are PCs, set-top boxes, medical equipment (a medical device using a barcode scanner), point-of-sale devices, cameras (a camera using a printer), and plenty more. Nucleus USB Host real-time software is used to create embedded systems that use USB functions.

Host side - Typical Set-top box application

See Also: Features, Benefits, References, and Overview