[En-Nut-Discussion] AVR Ethernut1 not working with current svn (at least for me)

Harald Kipp harald.kipp at egnite.de
Mon Mar 31 15:21:01 CEST 2014

Hi Thiago,

On 31.03.2014 15:03, Thiago A. Corrêa wrote:

>     EEPROM emulation for RTL8019AS added. Uses A13 and A14 , so no
> additional port pins are required. This modification allows to clear
> the full duplex flag in the Ethernet controller.
>     But EEPROM emulation existed before that AFAIK. So I'm not sure
> what actually changed then.

Yes, I used Rev-H with R7 still in place and R37 not stuffed. This
requires, that A13 and A14 are used for EEPROM emulation.


This had been introduced in Rev-G. Previous revisions used a pull-up, so
the EEPROM always appears with all bits set. This made it impossible to
enable half-duplex mode.

>     Do you get FakeNicEeprom in your httpserv.map file?

How can I? It's a static function. But the .init1 segment is 0x44 + 0x04
bytes in size. Looks like FakeNicEeprom is included.



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