Programmer / Debugger

The programming adapters transfer the firmware to the target system’s flash memory. Support of standardized protocols ensures compatibility with common development environments.


In-system programmer with SPI and JTAG interface for AVR microcontrollers.

  • STK500 compatible supports targets from 3.0 V to 5.0 V
  • Fast JTAG programming, even with malfunctioning clock generator
  • Fast SPI programming with self-adjusting clock rate
  • RS-232 interface to the PC
  • Upgradable firmware to ensure compatibility with future microcontrollers

SP DUO 2 is included in the Ethernut 1 and Ethernut 2 starter kit.

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Turtelizer 2

In-system programmer and debugger with JTAG interface for ARM microcontrollers.

  • OpenOCD compatible
  • Supports targets from 1.65 V to 5.5 V
  • USB interface to the PC
  • Additional RS-232 interface with virtual COM port driver
  • Space-saving 10 pin JTAG connector


Turtelizer 2 User`s Guide

Turtelizer 2 USB Driver Guide

Software and Drivers

Turtelizer 2 is included in the Ethernut 3 and Ethernut 5 starter kit.

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JTAG Connector

Pluggable adapter for use with Turtelizer 2 and targets with 14 and 20 pin JTAG connectors.
  • Includes 10, 14 and 20 pin ribbon cable

Allows to use Turtelizer 2 with Ethernut 5 and the Elektor Internet radio.

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