Re: [ECOS] Can't connect to remote Evaluator 7T

Jonathan Larmour
2003-02-19T15:30:49Z

Pierre Habraken wrote:
>
> Now I want to use RedBoot instead of Angel.
> I uploaded redboot.UU onto the board and then verified (using a
> communication program) that redboot was properly installed (see redboot
> banner below).
> But when I launch arm-elf-gdb and type the command 'target remote
> /dev/ttyS0' then gdb fails to talk to redboot :
> =================================================================
> $ arm-elf-gdb
> GNU gdb 5.2
> ...
> This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-elf".
> (gdb) set remotebaud 38400
> (gdb) target remote /dev/ttyS0
> Remote debugging using /dev/ttyS0
> 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
> =================================================================
> Could it be that the serial line is not configured as required on the
> gdb side ? (using ckermit I had to force parity to none...)

Possible, but unlikely since you're receiving stuff at all (packet errors,
not just timeout) and I assume you have the baud rate right :-).

Before target remote you could do:

set debug remote 1

to see what that says. If that doesn't reveal anything interesting then
(if I'm remembering right) you can also do:

set remotelogfile gdblog.txt

before the target remote, which should give a slightly more accurate
version of what was sent/received, into the file gdblog.txt.

Jifl
--
eCosCentric http://www.eCosCentric.com/ The eCos and RedBoot experts
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