Hello folks.
I've got a working Ethernet application for a LPC2378 board using the
Micrel
PHY. It happened that the code doesn't work on a LPC2478 board with the
same
PHY.
Is there any known differences between the both micro controller's
Ethernet
peripherical ?
Thanks!
Ethernet: LPC2378 vs LPC2478
Started by ●January 7, 2011
Reply by ●January 7, 20112011-01-07
Two things to check:
(1) PHY connection mode: RMII or MII, on LPC23xx, it
supports RMII only, on LPC24xx, it supports both RMII
and MII.
(2) PHY address, the PHY address can be changed from
board to board due to the H/W connection.
Tom
--- In l..., "Felipe de Andrade Neves L." wrote:
>
> Hello folks.
>
> I've got a working Ethernet application for a LPC2378 board using the Micrel
> PHY. It happened that the code doesn't work on a LPC2478 board with the same
> PHY.
>
> Is there any known differences between the both micro controller's Ethernet
> peripherical ?
>
> Thanks!
>
(1) PHY connection mode: RMII or MII, on LPC23xx, it
supports RMII only, on LPC24xx, it supports both RMII
and MII.
(2) PHY address, the PHY address can be changed from
board to board due to the H/W connection.
Tom
--- In l..., "Felipe de Andrade Neves L." wrote:
>
> Hello folks.
>
> I've got a working Ethernet application for a LPC2378 board using the Micrel
> PHY. It happened that the code doesn't work on a LPC2478 board with the same
> PHY.
>
> Is there any known differences between the both micro controller's Ethernet
> peripherical ?
>
> Thanks!
>
Reply by ●January 7, 20112011-01-07
Great help Tom, thanks!
2011/1/7 Tom Tang
> Two things to check:
> (1) PHY connection mode: RMII or MII, on LPC23xx, it
> supports RMII only, on LPC24xx, it supports both RMII
> and MII.
> (2) PHY address, the PHY address can be changed from
> board to board due to the H/W connection.
>
> Tom
> --- In l... , "Felipe de
> Andrade Neves L." wrote:
> >
> > Hello folks.
> >
> > I've got a working Ethernet application for a LPC2378 board using the
> Micrel
> > PHY. It happened that the code doesn't work on a LPC2478 board with the
> same
> > PHY.
> >
> > Is there any known differences between the both micro controller's
> Ethernet
> > peripherical ?
> >
> > Thanks!
> >
>
2011/1/7 Tom Tang
> Two things to check:
> (1) PHY connection mode: RMII or MII, on LPC23xx, it
> supports RMII only, on LPC24xx, it supports both RMII
> and MII.
> (2) PHY address, the PHY address can be changed from
> board to board due to the H/W connection.
>
> Tom
> --- In l... , "Felipe de
> Andrade Neves L." wrote:
> >
> > Hello folks.
> >
> > I've got a working Ethernet application for a LPC2378 board using the
> Micrel
> > PHY. It happened that the code doesn't work on a LPC2478 board with the
> same
> > PHY.
> >
> > Is there any known differences between the both micro controller's
> Ethernet
> > peripherical ?
> >
> > Thanks!
> >
>
