hardware support for gdb?

[mohanlal jangir]

> > I have an ARM board which comes with its own boot monitor, which just
brings
> > up the board. I download RedBoot to bring the target up as well as to
> > connect with gdb. My question is, what is minimal support required from
a
> > target hardware so that an application like RedBoot can work on it to
> > connect with gdb and provide debugging.
>
> Some sort of "serial" communications channel (from a simple serial
> device through to mini-tcp on an ethernet device).
>
> Andrew
>

Really!! Does even single stepping also not require any hardware support?

Regards
Mohanlal