[En-Nut-Discussion] ENJ28J60

[Jesper Hansen]

I used a modified version of Pascal Stangs driver, together with the UIP 
stack (dare I say that here? ;-)
I wanted to redo the driver for use with NutOS but haven't had the time 
yet. It shouldn't be too much work though.

The code is a big mess as it's a patchwork of many various projects. 
I'll try clean it up a bit and post a link to it here.

/Jesper

Bengt Florin wrote:
> Well Jesper, that's good news.
> I did put our little ENC28J60 project on ice after reading the errata.
> Then it might be time to wake it up again.
> 
> BTW. did you write the drivers by yourself?
> If yes, do you want to share?
> If no, what did you start out with? Drivers from Microchip?
> 
> /bengt
> 
> -----Original Message-----
> From: en-nut-discussion-bounces at egnite.de
> [mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of Jesper Hansen
> Sent: den 24 maj 2006 19:27
> To: Ethernut User Chat (English)
> Subject: Re: [En-Nut-Discussion] ENJ28J60
> 
> I've had a ENC28J60 running for months on a web-server with a mega128 
> clocked at 7.2728 MHz, and have had no problems at all with it.
> I've two other boards with ENC28J60's on and haven't notices any 
> problems with those either. None of these are even close to 8 MHz SPI 
> frequency !
> Also note that the 2k bias resistor that was recommended on the early 
> devices should now be 2.7k. This lowers current consumption 
> considerably, I'm not sure how much though, haven't measured.
> 
> /Jesper
> 
> Bengt Florin wrote:
>> Also the current status of the ENC28J60 (Rev B4) silicon makes it
>> practically unusable for most CPU's, as the SPI interface doesn't work
>> properly for clock rates under 8MHz.
>>
>> Silicon Rev B5 is said to correct this, but Microchip has yet not
> announced
>> when this will be available.
>>
>> Also, I agree to Haralds comment. Power consumption is way too high.
>>
>> Another interesting CPU to port Nut to would be the Freescale Coldfire
>> MCF52235, a true single chip solution as it also contains an Ethernet PHY.
>>
>> I remember reading some comments from Erik Lins to port Nut to Coldfire
>> MCF5282.
>> Well yes, it was back in 2004. Time flies.
>>
>> Any interest of, or progress in the Coldfire direction?
>>
>> /bengt
>>
>> -----Original Message-----
>> From: en-nut-discussion-bounces at egnite.de
>> [mailto:en-nut-discussion-bounces at egnite.de] On Behalf Of Harald Kipp
>> Sent: den 22 maj 2006 09:39
>> To: Ethernut User Chat (English)
>> Subject: Re: [En-Nut-Discussion] ENJ28J60
>>
>> Hello Richard,
>>
>> At 17:43 21.05.2006 -0400, you wrote:
>>> MIcrochip ENC28J60 Has anyone been able to use this IC with Ethernut?
> Been 
>>> considering making a Ethernut board and using this, but I am terrible at 
>>> writing drivers... I see code to operate the IC in the AVRlib,
>> After Erik Lins pointed me to the electrical characteristics,
>> namely the operating current, I lost my interest in this chip.
>>
>>> also any drivers for the newer MP3 IC's from VLSI 1002 or 1003?
>>>
>> Due to missing hardware (Medianut still uses the old VS1001K),
>> we never worked on an update. I agree that this is very sad.
>>
>> Harald
>>