[Prism54-devel] Re: Active testing rules

[Feyd]

On Wed, 26 Jan 2005 19:29:24 +0100
Jean-Baptiste Note <jean-baptiste.note at wanadoo.fr> wrote:

> 
> That's because the buffer is aligned (the address is little-endian), and
> you don't "see" the leading zeroes, but this is seen in many frame
> types, i'm sure of the meaning.  While we're at it, all frames seem to
> have their size 32-bit aligned ; i'll implement this too.

Ah I see. The 32bit alignment is there probably to allow the "single"
DMA transfers of the NET2280.

> > Actualy I see all the frames begin at 4c..
> >
> 
> No, have a look at your data frame, it starts with 08 41 (pure data
> frame), 16 bits earlier (incidentally the MAC adresses are not aligned
> as in the beacon case). The beacon frame starts with 40 00.

Of course you are right :) The byte at 48 seems to be the offset.

Feyd