[ECOS] Port to XScale board

[Cristiano Ligieri Pereira]

Hi folks,

Right now I have Redboot running on the RAM memory of my XScale board. I'm
trying to make the '$' command to work. In other words, I'm trying to
download some application into the RAM memory using Redboot (instead of
Cygmon), but something wrong is happenig and I'm getting the following
message from the gdb console:

"Ignoring packet error, continuing...
 Ignoring packet error, continuing...
 Ignoring packet error, continuing...
 Couldn't establish connection to remote target
 Malformed response to offset query, timeout
 gdb_config:3: Error in sourced command file:
 You can't do that when your target is `exec'"

Looking at the Redboot source I've noticed that the function breakpoint(),
which is called after issuing the command '$', is the last one called,
which in turn calls HAL_BREAKPOINT(_breakinst). From the comments I've
also noticed that this generates a breakpoint exception. From this point
on what should happen? Why I'm not able to communicate with RedBoot via
GDB? The serial communication Redboot/host is working fine since I'm
seeing the prompt and issuing commands...

Any help or suggestion is appreciated. :-|

Thanks,
Cristiano.

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Cristiano Ligieri Pereira - http://www.ics.uci.edu/~cpereira