Re: [ECOS] port ecos to blackfin

[Gary Thomas <gary at mlbassoc dot com>]

On Mon, 2005-11-14 at 23:17 +0100, Martin Laabs wrote:
> Hi,
> 
> I have less experience with ecos but I (or maybe a
> member of my group) will port eCos for the blackfin
> dsp from Analog Devices.
> Could you tell me how much time we will need (with
> good basic knowledge in computer science) to port
> it basicly?
> With "good basic knowlege" I'd like to say that I know
> whats a pipeline or memory mapped register, memory map
> and so on. I also have experience in progamming assembler
> and c at machine-level.
> Maybe it's easier to estimate the number of codelines to
> write. 

It's hard to give a time estimate for such work because this
really depends so much on the experience and calibre of the
people doing the work.  That said, porting eCos to a new
machine architecture is non-trivial and can take someone with
experience with eCos anywhere from 4-12 weeks (I've done a
number of these and those are representative costs).

Note: I'm not trying to make this sound like a huge task,
rather that there are lots of details to consider and get
correct and it simply takes time, often more than one might
wish.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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