Re: [ECOS] gdb remote debug problem...running an ecos application...

[Srinivasan Sriram <pet_jimmy at yahoo dot com>]

Hello!
When I use -
set remote debug 1, 
I get the following output...

Sending packet: $Hc-1#09...Sending packet:
$Hc-1#09...Sending packet: $Hc-1#09..
Sending packet: $Hc-1#09...Timed out.
Timed out.
Timed out.
Ignoring packet error, continuing...
Sending packet: $qC#b4...Sending packet:
$qC#b4...Sending packet: $qC#b4...Sendi
ng packet: $qC#b4...Timed out.
Timed out.
Timed out.
Ignoring packet error, continuing...
Sending packet: $qOffsets#4b...Sending packet:
$qOffsets#4b...Sending packet: $q
Offsets#4b...Sending packet: $qOffsets#4b...Timed out.
Timed out.
Timed out.
Ignoring packet error, continuing...
Couldn't establish connection to remote target
Malformed response to offset query, timeout
(gdb)
 
-----
I repeated the above with lower baudrates, but there
seems to be no variation in the output.

Just to check if my serial null modem connected at
COM2 is working fine, I ran kermit on Linux host and
Hyperterminal on my target. There is no loss of data
at 38400 baud.

Could you help me debug this problem?
thanks
Kavita

--- Jonathan Larmour <jlarmour@redhat.com> wrote:
> Srinivasan Sriram wrote:
> > 
> > Hello!
> > Could someone help me fix this problem -
> > I use Linux as host and PC as target.
> > Using
> > dd conv=sync if=./gdb_module.bin of=/dev/fd0h1440
> > I copy the .bin file on to a floopy.
> > I connect my host to target via a null modem
> cable.
> > When my target PC boots from this floppy, I see
> the
> > following line on the target monitor-
> > ++$T0508:a43.....and so on.
> 
> This looks right.
>  
> > I type i386-elf-gdb -nw hello, then I get the
> (gdb)
> > prompt.
> > I type the following -
> > (gdb) set remotebaud 38400
> > (gdb) target remote /dev/ttyS1
> > Remote debugging using /dev/ttyS1
> > 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)load
> > You can't do that when your target is 'exec'.
> > 
> > ----
> > 1.Is this due to mismatch of baudrate of host and
> > target?
> > Setting baudrate to 19200 gives me the same
> output.
> > 2. How do I run my application on the target?
> 
> It could be a serial overrun. Try again with "set
> remotedebug 1" fist
> before the target remote and post the results here.
> 
> Jifl
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