Product category: Reference Designs
News Release from: Future Technology Devices International | Subject: VF2F2 reference design module
Edited by the Electronicstalk Editorial Team on 6 April 2007
Reference design module
for USB host controller.
Reference design module for an embedded USB host controller includes a practical firmware application that demonstrates file transfer using the USB mass storage class interface
Future Technology Devices International, (FTDI) announces availability of the VF2F2 reference design module for its Vinculum VNC1L embedded USB host controller. The design incorporates a practical firmware application that demonstrates file transfer using the USB mass storage class interface.
This article was originally published on Electronicstalk on 6 April 2007 at 8.00am (UK)
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Prototyping module for USB-based designs
USB prototyping module is suitable for both the rapid development of USB-based products and incorporating into low-volume finished products
It permits moving files from a USB device, such as a digital camera, to a USB flash disk.
The design could also be used to transfer files between other mass storage class devices such as MP3 players or between two USB flash disks.
The module is equipped with two USB type A sockets and four control buttons.
An onboard DC/DC convertor provides 5 and 3.3V supply from the attached battery pack that holds 2 x AAA cells.
Four LEDs provide indication of flash-disk enumeration, file copy, power and error conditions.
The VNC1L IC provides all USB host-interface and data-transfer functions in addition to encapsulating the USB device classes.
It also manages the file allocation table (FAT) structure by use of a straightforward command set.
Vinculum is based around a unique 8bit processor as the controller.
A 32bit co-processor provides file system calculations and two direct memory access (DMA) engines handle data transfers.
The device contains 64Kbyte of embedded flash program memory and 4Kbyte of internal data SRAM.
Programming of its 8bit core is by an easy to use high level assembly language that typically produces code half the size of other similar controllers.
The VNC1L is specifically targeted at embedded USB controller applications.
The single, low power IC requires just a crystal and a few passive components to bring USB connectivity to a wide range of devices that previously did not have the capability.
The VF2F2 is supplied fully assembled together with schematics, firmware and printed-circuit-board Gerber files.
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