Re: Uthercard Mac address

["Tom Greene" <tom@cowgod.org>]

On Mar 16, 2:53 am, "AMart79...@gmail.com" <AMart79...@gmail.com>
wrote:
> the arp -a didn't work.
> The only thing I get is MAC address 162 LBS only....huh??  Not sure
> what this means...my router also needs a much longer number then 162.
> I see that in the Link Layer in GS/OS and also in Contiki.
> I sure hope that Glenn Jones pop's on to fill me in.
> Not having a MAC addy on the card goes against the book
> completly...never seen it in my life...but this may be a first..

The "162 LSB only" seems be the 'least significant byte' of the MAC
address, in decimal.

I took a look at uip/uther-drv.c in the Contiki source and found this:

static const struct uip_eth_addr addr =
  {{0x00,0x0e,0x3a,0xa2,0xa2,0x00}};

It would seem only the last byte is configurable, with the default
setting being 162, or A2 in hex. So the default MAC for the Uthernet
with Contiki would be 00-0E-3A-A2-A2-A2.

Tom