USB Console Interface

The two USB ports on the dual axis controller system provide

• Console interface for system control
• Console interface for system configuration
• Interface for in-system flash firmware upgrades

The USB interfaces are provided by Teensy 2.0, an Atmel AVR-based controller from http://www.pjrc.com/.

The Teensy 2.0 board features:

• 16MHz ATmega32U4
• 32Kb flash
• 2Kb+ RAM
• USB, UART, I2C, SPI, 7 PWM, 25 digital I/O bits, 12 input ADC
• USB-based flash programming boot firmware
• Support for Windows XP, Vista, and 7, Linux, and Mac
• Uses a USB virtual serial port for communicating with a PC serial console or application

The stepper controller firmware is application code running on bTORX