Guys, I'm not sure if I understood it correctly.
I'm looking for a way to debug a mega32u4. I have an Atmel ICE and a board with the ISP connection (not JTAG).
I was going to enable the debugWire, but from the datasheet it seems this AVR does not have this feature (and no fuse DWEN is available).
Also the PDI interface is not present.
Is it correct without a JTAG interface I cannot do any debug? Is there a way to your the ISP connection to do some debugging?