Sunday September 05, 2010
 

AVR Programmer JTAG / ICE

1259.25 SEK

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This AVR Programmer / ICE / simulator is compatible with JTAGICE MKII and supports all AVR controllers with interface for programming and emulation. It also supports AVR32 and xmega at very low cost.





Introduction

Using AVR Studio and the JTAGICE mkII you can do on-chip debugging on all AVR 8-bit RISC microcontrollers with JTAG or debugWIRE interface.


JTAG

The JTAG interface is a 4 wire Test Access Port (TAP) controller that is compliant with the IEEE 1149.1 standard. The IEEE standard was developed to enable a standard way to efficiently test circuit board connectivity (Boundary Scan). Atmel AVR devices have extended this functionality to include full Programming and On-Chip Debugging support.

The JTAGICE mkII uses the standard JTAG interface to enable the user to do real time emulation of the microcontroller while it is running in the target system.

The AVR On-Chip Debug (AVROCD) protocol gives the user complete control of the internal resources of the AVR microcontroller. Thus JTAGICE mkII gives accurate emulation at a fraction of the cost of traditional emulators.


debugWIRE

The debugWIRE interface adds a new way of doing On Chip Debug. The debugWIRE On-chip debug system uses a one-wire, bi-directional interface to control the program flow, execute AVR instructions in the CPU and to program the different non-volatile memories.

When the debugWIRE Enable (DWEN) Fuse is programmed and Lock bits are un-programmed, the debugWIRE system within the target device is activated. The RESET port pin is configured as a wire-AND (open-drain) bi-directional I/O pin with pull-up enabled and becomes the communication gateway between target and emulator.

Note that debugWIRE is a debugging interface only and not a programming interface.


ISP (In System Programming)

The JTAGICE mkII also supports full programming through the ISP interface. All JTAG and debugWIRE parts are supported.

AVR mkii pro is compatible with AVR JTAG ICE mkII and features:
  • AVR Studio Compatible (AVR Studio 4.09 or later)
  • Supports all AVR Devices with JTAG Interface
  • Supports all AVR Devices with debugWIRE Interface
  • Supports ISP programming of all JTAG and debugWIRE parts
  • Exact Electrical Characteristics
  • Emulates Digital and Analog On-Chip Functions
  • Software Breakpoints
  • Program Memory Breakpoints
  • Supports Assembler and HLL Source Level Debugging
  • Programming Interface to flash, eeprom, fuses and lockbits (JTAG only)
  • USB 1.1 to PC for Programming and Control (this model differs from ATmel's, there is no RS232 Interface )
  • Can be powered from the USB alone
  • Same hardware for both interfaces (JTAG and debugWIRE)
  • AVR32 is supported
  • Xmega is supported
  • Auto detects if your target board connection is JTAG or ISP
  • Auto upgrade via avrstudio

Download manual


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