Holger Schellwat wrote:
> Hello,
>
> I was able to compile the at91sam7s_example_gamma_20060910b
> example for my Olimex SAM7-P256 board into RAM, I even
> suceeded in using SAM-BA (USB) to upload the binary.
> I want to step through it with Insight, connected via ocdremote
> and Olimex wiggler (connects nicely). However, Insight
> would hang unless I comment out anything involving interrupts.
> Sure, since these are my first steps on the new platform,
> I know too little about ARM and GDB. I wonder whether such
> debugging is impossible in principle, perhaps because GDB
> uses software interrupts for breakpoints, or if this should be
> possible in general.
>
>
> Many thanks to Martin THOMAS for the excellent WinARM distribution,
> regards,
>
> Holger.#

I expect the reason for your problem is that the core still expects the
exception-vectors at 0x0 but they are located at 0x00200000 for
"RAM_RUN".
In the RAM_RUN configuration of "gamma 20060610b" remapping is not
enabled by the startup-code. In my optionion it's the task of the
debugging-software to enabled remap (i.e. in a "debugger-script") before
setting PC to 0x00200000 so it's not enabled by default in "RAM_RUN".

Anyway: for a test you could try to replace
/*---------------------------------------------------------------------- 
--------
/*- Remapping
/*---------------------------------------------------------------------- 
--------*/
.if (VECTREMAPPED)

with

.if (1)

in startup.S so the remapping-code is alway included and executed at
startup.


Hope this helps,
Martin Thomas