[ECOS] ecos on EDB7111-2

[Joon Suan Ong]

Hi all,

I'm having alot of difficulty trying to get the gdb stub to work on an
EDB7111-2 (rev B) board and hope someone can give me advice on how to
proceed.

I'm using Redhat 6.2 and built the toolchain from the web instructions
(binutils-000613, patched gcc-2.95.2 and gdb-5.0). I've tried flashing the
provided gdb_stub at ecos-1.3.1/loaders/arm-eb7111/cl7111_gdb_module.bin
as well as using one that I've built (again following the web
instructions). I'm sure the flashing process works fine. In both cases,
the stub refuses to talk to gdb on the host. Here's a summary of the gdb
output:

$ arm-elf-gdb
GNU gdb 5.0
<stuff deleted>
This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-elf".
(gdb) set debug remote 1
(gdb) set remotebaud 38400
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
Sending packet: $Hc-1#09...Sending packet: $Hc-1#09...Sending packet:
$Hc-1#09...Sending packet: $Hc-1#09...Timed out.
Timed out.
<more timeout messages>
Ignoring packet error, continuing...
Couldn't establish connection to remote target
Malformed response to offset query, timeout
(gdb)

I've also cvs'ed to the latest version of ecos to build the gdb stub,
but it still does not work.

I remember in March someone suspected there was a problem with the -2
revision due to DRAM changes.
( http://sourceware.cygnus.com/ml/ecos-discuss/2000-03/msg00063.html )

Am I seeing the same problem and is there a fix for it?

Thanks very much!