When installing Atmel Studio 6.1 SP2, the JTAGICE3 will receive a major firmware increment from version 2 to version 3. While version 2 firmware enumerates as a Jungo usb tool in the device manager, version 3 appears as a HID device (with a new USB PID), much like the EDBG included in Xplained Pro series of evaluation kits.
The new JTAGICE3 firmware brings support for all Atmel SAM ARM® Cortex®-M based microcontrollers to the JTAGICE3, while preserving all of the AVR functionality.
As of version 3.11, the JTAGICE3 also supports serial ITM trace capture.
After upgrading to firmware version 3, the JTAGICE3 will NOT be recognised by previous versions of Atmel Studio. In order to use the JTAGICE3 with an older version of Atmel Studio, it must first be downgraded back to version 2 firmware.
atfw.exe command-line firmware upgrade utility must be used with the
-a archive-name switch to give the utility the path to the version 2
firmware zip file. After the downgrade, older versions of Atmel Studio will work as
For information on connecting the JTAGICE3 to SAM devices using SWD, see the section called “Connecting to a SWD target”.