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Atmel releases low-cost USB OTG development platform

Posted: 26 Jul 2006 ?? ?Print Version ?Bookmark and Share

Keywords:Atmel? AT90USBKey? USB OTG?

Atmel Corp. has announced the release of a complete USB solution for embedded systems consisting of the AT90USBKey demonstration boardavailable for only $30and a new royalty-free USB software suite supporting Dual Role Device (DRD), USB Host or Function. This platform allows fast and easy development with the AT90USB AVR microcontroller (MCU) family.

Low cost, powerful kit
The USB's bus is replacing the UART in an increasing number of embedded systems. Existing development tools are often based on 32bit processors or embedded PCs, which require large system memories and an OS. By offering a complete development platform based on the market-leading AVR 8bit RISC architecture, Atmel said it is offering a standalone platform that does not require an OS to facilitate the quick development of new applications with USB. Its $30 platform is said to be 10 to 1000 times less expensive than other solutions.

The new device connects to a PC without the need for an external power supply for USB device developments. It can also be powered by an external battery for host/OTG developments. The on-board AT90USB1287 AVR MCU features 128Kbytes of Flash code memory that can be reprogrammed in-system and high-end debugging is allowed with a JTAG connection.

The kit also provides 16Mbytes of DataFlash demonstrating mass storage applications and containing reference software and documentation. On-board joystick and LEDs allows interaction with the user. Cables and adapters are also included to connect to a variety of USB and OTG devices.

Royalty-free USB stacks
The following USB standard device classes are supported today in both device and host modes: Human Interface Device (HID), Mass Storage Device (MSD) and Device Firmware Upgrade (DFU). The Communication Device Class (CDC) and the Audio class are supported in device mode while their host mode support is in development. Printer and Hub classes will be supported in 2007. Composite devices with multiple interfaces are already supported in host mode and in device mode.

The USB software suite is written in C language with online documentation and HTML documents to accelerate customer development and help with code maintenance and quality. It allows direct compilation with the IAR C compiler and with the WinAVR GCC-based compiler.

The company grants customers a license to use the source code for development on Atmel MCUs and to distribute the object code without royalties only for Atmel MCUs.

The AT90USBKey is available for $30 per unit, while the software is free-of-charge.

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