Debugging tools? (Arduino Mega + Marlin)

Hello All,

I was wondering what type of tools are available for debugging firmware on the Arduino ? I would like the ability to set breakpoints, step into functions, view variables, view the stack/registers and etc.

In a previous job we were working with a MSP430 and had a 'JTag connector' and were using IAR Embedded workbench to accomplish this. I was wondering what the equivalent is for the Arduino.

If someone could point me in the right direction as to what cables are required I'd appreciate it.

Edit: Forgot to mention - I'm using a RAMPS 1.4 and Taurino Classic.

Edited 1 time(s). Last edit at 10/21/2013 09:19AM by chuyzoz.

Atmega2560 has jtag support

But its turned off so the pins can be used for other things

You can pick up a cheap jtag interface from [www.aliexpress.com],

also see [webcache.googleusercontent.com] for someone elses write up of jtag