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ARM JTAG Debugger/Programmer and USB-RS232 Adapter, Turtelizer 2 US$78.00

EGN400207
ARM JTAG Debugger/Programmer and USB-RS232 Adapter, Turtelizer 2


The Turtelizer 2 is both a JTAG programmer/debugger for ARM microcontrollers and a virtual RS232 serial port that plugs into a PC's USB port.

This debugger's target connection is an unusual 10-pin interface used by the Ethernut 3 board. However, purchase the optional JTAG Connector 2 and it becomes compatible with nearly all JTAG connector types found on ARM-based boards. So if your target board has a JTAG interface and a chip compatible with the OpenOCD software, the combination of this debugger and that adapter most likely will be all you need to program and perform in-circuit debugging (other than possibly a connection cable; see the adapter's page for details).

ARM JTAG Programmer/Debugger Features

  • OpenOCD compatible (recommended with GDB and Eclipse)
  • Supports targets from 1.65V to 5.5V
  • USB 2.0 Full-Speed interface to your PC; draws 60mA (USB cable is included)
  • RS-232 interface with virtual COM port driver; 9-pin DTE, 8-wire with full modem handshake
  • LED indicators of JTAG and RS232 activity
  • Operating Temperature: 0 to 60 C (32 to 140 F)
  • Storage Temperature: -20 to +85 C (-4 to +185 F)
  • Humidity: 5% to 95%, non-condensing
  • Dimensions: 230 35 25 mm (9.06 1.38 0.98 inches)
  • Weight: 55 grams (0.12 lbs)

JTAG Connector Pinout

The JTAG connector of the Turtelizer 2 has the following pinout:
TCK - 1 2 - GND
TDO - 3 4 - VTref
TMS - 5 6 - nSRST
Vsupply - 7 8 - NC
TDI - 9 10 - GND

All JTAG signals are buffered by LCX-type single logic gates, which are powered by the JTAG VTref line. This way, the JTAG interface is automatically adjusted to different target voltage levels from 5.5V down to 1.65V. Additional series resistors in the JTAG lines help to maintain signal integrity and even provide some limited over-voltage protection.

Turtelizer 2 Resources


Optional Recommended Products for this Item
JTAG Connector 2: Adapts Turtelizer 2 to Many ARM JTAG Pinouts+ US$40.00

This product was added to our catalog on Thursday 02 October, 2014.

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