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HCC Embedded

USB Device, Host and OTG » EUSB

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USB Device, Host and OTG - EUSB

Embedded USB stacks from HCC are mature, widely used stacks that can support almost any desired USB configuration. The USB suite includes solutions not only for common functions like HID, Hub and Mass Storage but also for more sophisticated requirements including Isochronous, Composite Devices, and interfaces to File Systems and Ethernet. This means developers can exploit USB to its full capability with ease without having to worry about developing highly specialized drivers. Software is generally provided as a source code project for most popular RTOS, MCU’s and compilers. This means that embedded developers no longer need feel constrained by limited support available on their chosen target. HCC provide software for all interface speeds, all transfer types, USB 1.1/2.0, Host, Device and OTG modes. Having one of the broadest selections of class drivers available in the embedded market ensures that, irrespective of your future needs, HCC can provide long-term support.

USB Host:

HCC’s USB Host stack is a scalable suite that enables an embedded host to control a variety of USB devices including pen-drives, printers, audio devices, joysticks, virtual serial ports and network interfaces. The embedded USB host stack supports EHCI, OHCI and non-standard USB controllers.

USB Device:

HCC’s USB device stack allows developers to integrate USB device functionality into their embedded devices. It is available with a comprehensive suite of class drivers that gives the device many functional possibilities, including operating as a pen-drive, virtual serial port, joystick, audio system or a network card.

USB OTG:

On-the go acts as a switch between the USB host and device stacks, determined by the state of the ID pin. In many cases, OTG software is not required. HCC provides the hooks for this configuration as standard with the EUSB host and device stacks. HCC also provides a full software OTG stack that supports the SRP and HNP protocols for negotiating between two connected devices in order to decide which one shall operate as the host.

All Speeds & Transfer Types:

HCC USB comprehensively supports all USB End-point/Transfer Types and Interface Speeds including Low (1.5Mbs), Full (12Mbs) and High Speed (480Mbps). Transfer types include Control, Interrupt, Bulk, and Isochronous, providing the base for the widest possible range of class drivers.

Composite, Compound & Complex Devices:

HCC provides support for multiple USB class functions to be used on the same device.