[En-Nut-Discussion] ENJ28J60

[Bengt Florin]

Tack Jesper that would be most helpful.
Even messy code tends to be more readable than the data sheets.
Besides endless reading of the specs doesn't even get close to the
experience dug deep in working code.

I also took a look at Pascal Stangs library, very impressive. First time I
heard of that. More thanks for that tip.

/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 19:57
To: Ethernut User Chat (English)
Subject: Re: [En-Nut-Discussion] ENJ28J60

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
>>
_______________________________________________
En-Nut-Discussion mailing list
En-Nut-Discussion at egnite.de
http://www.egnite.de/mailman/listinfo.cgi/en-nut-discussion