RE: [ECOS] PC target

RE: [ECOS] PC target

[Natarajan, Mekala (CTS)]

Hi Koeller,
	To download u'r application program first u need to build ecos gdb
stub. This is something similar to that a monitor program. U need to load
this stub into the bootsector of the floppy.

mount the floppy drive in binmode and then use this command

dd conv=sync if=/d/ecos_stub/ecos_install/bin/gdb_module.bin of=/dev/fd0

once this is done boot the floppy.

mekala

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[ECOS] PC target

[Koeller, T.]

I am currently evaluating eCos to see if it's suitable for an upcoming
embedded project. My host environment is Windows NT / Cygwin. For evaluation
purposes only, I am using the PC target with CYG_HAL_STARTUP set to FLOPPY.
I found that the cross-development tools I installed (i386-elf) always
generate elf executables (xxx.exe), which is not really surprising, given
the names of those tools. However, the executables generated cannot be
loaded directly on the target, so I used objcopy to convert them to raw
binary format. This step is not described anywhere in the docs, and I
therefore wonder if I am doing it the way it's supposed to be done. Any
comments?

----------------------------------------------- 
Thomas Koeller, Software Development 

Basler Vision Technologies 
An der Strusbek 60-62 
22926 Ahrensburg 
Germany 

Tel +49 (4102) 463-390 
Fax +49 (4102) 463-109 

mailto:Thomas.Koeller@baslerweb.com 
http://www.baslerweb.com 

Re: [ECOS] PC target

[Christian Plessl]

Hi Thomas

>This step is not described anywhere in the docs, and I
>therefore wonder if I am doing it the way it's supposed to be done. Any
>comments?

Did you have a look at the ecos tutorial for the i386 target?

http://sources.redhat.com/ecos/docs-latest/pdf/ecos-tutorial-i386PC.pdf

The proposed way to go with the ecos excecutables, is to build a loader 
application with gdb stubs, which is startet via a boot floppy. This gives 
you the possibility to upload and debug applications via gdb, which is 
connected via serial null-modem. Using this gdb connection, you can upload 
elf binaries directly.

/Chris


--
Christian Plessl <cplessl@ee.ethz.ch>

Re: [ECOS] PC target

[Jesper Skov]

>>>>> "Koeller," == Koeller, T <Thomas.Koeller@baslerweb.com> writes:

Koeller,> I am currently evaluating eCos to see if it's suitable for
Koeller,> an upcoming embedded project. My host environment is Windows
Koeller,> NT / Cygwin. For evaluation purposes only, I am using the PC
Koeller,> target with CYG_HAL_STARTUP set to FLOPPY.  I found that the
Koeller,> cross-development tools I installed (i386-elf) always
Koeller,> generate elf executables (xxx.exe), which is not really
Koeller,> surprising, given the names of those tools. However, the
Koeller,> executables generated cannot be loaded directly on the
Koeller,> target, so I used objcopy to convert them to raw binary
Koeller,> format. This step is not described anywhere in the docs, and
Koeller,> I therefore wonder if I am doing it the way it's supposed to
Koeller,> be done. Any comments?

If you follow the instructions here:

http://sources.redhat.com/ecos/docs-latest/tutorials/i386pc/ecos-tutorial.d.html#pgfId=2565417

You will be able to boot a GDB stub on the target. From then on, you
use GDB to download the files over serial.

Jesper