Go Down

Topic: AVR-USB firmware (Read 2029 times) previous topic - next topic


A Firmware-Only USB Driver for Atmel AVR Microcontrollers

A USB device without dedicated USB hardware

AVR-USB is a firmware-only implementation of a USB 1.1 compliant low-speed device for Atmel's AVR microcontrollers. It runs on any AVR microcontroller which has at least 2 kB of Flash memory, 128 bytes RAM and can be clocked at 12 MHz. No UART, timer, input capture unit or other special hardware is required (except one edge triggered interrupt).

AVR-USB can be licensed freely under an Open Source compliant license or alternatively under a commercial license.

   * Fully USB 1.1 compliant low-speed device, except handling of communication errors.
   * Supports two endpoints: one control and one interrupt endpoint.
   * Transfer sizes up to 254 bytes.
   * Comes with freely usable USB identifiers (Vendor-ID and Product-ID pair).
   * Customizable sections are written in "C" and are well commented.
   * Delivered with fully functional example applications.
   * Only about 1400 to 1500 bytes code size for basic functionality.
   * You can choose the License: Open Source or commercial



wow. I wonder if that would  make a $5 Arduino possible?
the schematic is so simple...

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131