[ECOS] LPC2106 iar kickstart eval board port

Andrew Lunn andrew@lunn.ch
Thu Jun 14 15:14:00 GMT 2007


On Wed, Jun 13, 2007 at 05:44:00PM +0200, Alexandre wrote:
> Well i tried to use the minimal and default settings.
> I need thread management, serial drivers, and basic i/o management.
> I use the command : arm-elf-objcopy -O ihex file.elf file.hex to make
> my footprint.

ihex is an ASCII format of "binary", so you cannot just look at the
file size. 

A much better way to get an idea of the footprint is arm-elf-size.

lunn@londo:~/eCos/work$ ecosconfig new at91sam7xek minimalU CYGHWR_HAL_ARM_AT91SAM7, new inferred value at91sam7x256
U CYGHWR_HAL_ARM_AT91, new inferred value AT91SAM7S
U CYGHWR_HAL_ARM_AT91_FIQ, new inferred value 1
lunn@londo:~/eCos/work$ ecosconfig tree
lunn@londo:~/eCos/work$ make -s   
headers finished
build finished
lunn@londo:~/eCos/work$ make -s tests
headers finished
build finished
tests finished
lunn@londo:~/eCos/work$ arm-elf-size install/tests/hal/common/current/tests/basic 
   text    data     bss     dec     hex filename
  10630     552   33180   44362    ad4a install/tests/hal/common/current/tests/basic

So here there is a little over 10K of code in the text segment and 0.5K
of data. The bss, which goes in RAM is just under 33K.

   Andrew

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