I have a problem when porting ecos to lpc2468

[jasonlee]

Tanks,is anybody have this prolem,I have port the redboot to lpc2468 and is working well.SO,I want to run hello sample on my DEMO machine.
follow is the info
# arm-eabi-gdb a.out

GNU gdb (eCosCentric GNU tools 4.3.2-sw) 6.8.50.20080706
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "--host=i686-pc-linux-gnu --target=arm-eabi".
For bug reporting instructions, please see:
<http://bugs.ecos.sourceware.org/>...
(gdb) set remotebaud 38400
(gdb) target remote /dev/ttyS0
Remote debugging using /dev/ttyS0
diag_dump_buf_with_offset (p=<value optimized out>, s=0, base=0x13 "?b_@?\030?\237?\030?\237?@")
at /home/jason/ecosdir/ecos-3.0/packages/infra/v3_0/src/diag.cxx:634
634 }
Current language: auto; currently c++
(gdb) load
Loading section .rom_vectors, size 0x40 lma 0x0
Loading section .text, size 0x1392c lma 0x40
Ignoring packet error, continuing...
Ignoring packet error, continuing...
!!!!!(is here,gdb is stop and show shis message )

i ever use the another way to run "hello"program, use the redboot,
#load -b 0xa1000000 -r -m xmodem
#i sent the a.bin file to targe............
#go 0xa1000000
__________is stop here,

i can not find what the pronlem is .
Perhaps someone else has seen the same problem and
can help.tanks fo you help~!!

[Martin Laabs]

Hi,

jasonlee wrote:
> Tanks,is anybody have this prolem,I have port the redboot to lpc2468 and is
> working well.SO,I want to run hello sample on my DEMO machine.
> follow is the info

[...]
> # arm-eabi-gdb a.out

> (gdb) set remotebaud 38400
> (gdb) target remote /dev/ttyS0
> Remote debugging using /dev/ttyS0
> diag_dump_buf_with_offset (p=<value optimized out>, s=0, base=0x13
> "?b_@?\030?\237?\030?\237?@")
> at /home/jason/ecosdir/ecos-3.0/packages/infra/v3_0/src/diag.cxx:634
> 634 }
> Current language: auto; currently c++
> (gdb) load
> Loading section .rom_vectors, size 0x40 lma 0x0
> Loading section .text, size 0x1392c lma 0x40
> Ignoring packet error, continuing...

Well - this happens when the protocol of the gdb is wrong. Often because
the processor received an exception. You have to figure out the cause of
that. (And in this state it is very useful to have a JTAG debugger.)


> i ever use the another way to run "hello"program, use the redboot,
> #load -b 0xa1000000 -r -m xmodem
> #i sent the a.bin file to targe............
> #go 0xa1000000
> __________is stop here,

Same thing. Something is going wrong. Time for the hardware debugger. If
you do not have one you could try to compile the HAL with assertions.
(However - you'll get output only if the serial interface was set up
correctly before. When the error occurs before that initialization you
can try to use the LED macros.) If I remember correctly they report
exceptions of the processor. So you could get a hint where to search.
Sometime it is simply a stack overflow. So try to increase the stack of
you application first.

Greetings,
  Martin L.


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[jasonlee]

tanks for you help
I will try it tomorrow……