Now I have the connections configured between the AVR ONE! and the Arduino ATmega2560. The configuration hasn't changed (same as earlier posts) and I am able to view the fuses, lock bits and upload programs to the 2560 with JTAG, AVR ONE! and the AVR studio. However, when I set break points in my source within the AVR Studio and run the IDE in debug mode the program doesn't stop and I am unable to watch the variables I have defined.
*) I have tried to debug at breakpoints and trace points with the OCDEN fuse on and with it off.
*) After I run the program in debug mode and then check the OCDEN fuse it has been turned off (set high).
*) Lock Bits are all set to "NO_LOCK" which should allow me to set the OCDEN fuse.
*) I have also tried compiling with all optimizations off.
Is there something I may be missing here?
Again, thanks for any help you can provide.