Lpc2000

> > I am using winarm.
> > The gcc compiler down loaded from Keil site works well.
> > But if I use winarm, it gives object file not found.
> > By the way I have observed that code size is large (5000) when I
> compile
> > with gcc from keil and its very low (1000 bytes) when I compile with
> winarm.
> > Any idea?
> 
> About code size - check optimization option (-O) in 
> compiler's parameters list. There are several levels of optimization:
> 
> -O default
> -O0 no opt.
> -O1 level1
> -O2 level2 (big speed)
> -O3 level3
> -Os small size

After you've checked the optimization flags:
Do you know which C libraries you are using in each case ?

WinARm by default is setup to use newlib. I recall a discussion on here
about Keil using by default a different C library. It was in a
discussion about C lib licensing issues.
It might be you are comparing apples with oranges. (This is not to say
one lib is better than another; just your app may end up with a smaller
fit in the newlib case, or the library was compiled with a different
optimisation (or even thumb mode) even if your app is compiled at the
same optimisation level.)

Cheers,
Bruce