Re: [lwip-users] Ethernet package through SPI interface

[address@hidden]

Noam,

I'll have to add some more here:

Noam Weissman wrote:
> [..]
> The ETH PHY is connected from one side to the magnetics and from the other side 
> it has a MAC interface.
> [..]
> LwIP or any other TCP stack need to read/or data to/from the MAC interface. 
> This is the hardware driver that connects
> the LwIP with the hardware.

These words might imply lwIP connects to RMII, but it doesn't. The 
interface between lwIP and the MAC can be a parallel bus (e.g. MAC 
included in the micro or external MAC connected to a memory-mapped bus), 
or a serial interface (e.g. SPI) or anything else.
The MAC then converts to (R/G/whatever)-MII, followed by the PHY 
converting to the media.

I wrote this only to make it clear that lwIP does not in any way 
interface MII.


Simon