[En-Nut-Discussion] olimex sam7-ex256 & ethernut

[addisu]

Hello,

This was very helpful.  I got my micrel PHY working on a sam7x 256. 
However, it only lasted two days and it started working only 50% of the
time, and now it doesn't work at all.  The problems seems like the PHY is
not getting configured according to the strap-in pins that I set up.  Any
clues?

Thanks,
Addisu


Dave Warren wrote:
> 
> Lars,
> 
> Look at the source at91_emac.c, you find it in libnutarch, the function 
> emacreset() sets up PHY. You will have to change the ID values they are 
> hardwired for the Davicom. PHY. Modes are changed by turning off pull ups
> on 
> IO pins then pulsing reset line. Check the reset for your print sometimes
> it 
> is attached to a PIO pin rather than system reset as it is on EK board.
> Also 
> some PHYs are reset with a active high signal. The PHY should be set for
> MII 
> mode.
> 
> Good luck
> 
> Dave Warren
> 
> ----- Original Message ----- 
> From: "Lars Ulph" <lars at mantracourt.co.uk>
> To: <en-nut-discussion at egnite.de>
> Sent: Tuesday, March 27, 2007 3:24 PM
> Subject: [En-Nut-Discussion] olimex sam7-ex256 & ethernut
> 
> 
>>> Hello All,
>>>
>>> I am trying to get Ethernut 4.2.1 working on my Olimex Sam7-ex256 (not 
>>> EK) board. Has anyone managed to make this work? Has anyone managed to 
>>> make the webserver work? if so please please tell me how.
>>>
>>> I believe it uses a Micrel PHY instead of the Davicon one on the Atmel 
>>> version.
>>>
>>> What changed do i need to make to make the phy talk to me? I have
>>> flashed 
>>> the board many times but i don't know whether it is alive.
>>>
>>> Also how do you change the IP address of the board?
>>>
>>> any help would be appreciated.
>>>
>>> Regards,
>>>
>>> Lars Ulph
>>>
>>> Mr. Lars Tapani Ulph
>>> BEng Electronic Eng. & Management
>>> lars at mantracourt.co.uk
>>>
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