ENC28J60

lejma · Guest

Hi. I've got problem with using ENC28J60. The problem is.. I don't have a idea how to use ENC28J60 driver included in CCS.

And what's more the register addresses are different in this driver and in datasheet.

In datasheet control registers are in 4 groups and every group is from 0x00 to 0x1F... in driver we have one group from 0x00 to some 0x75 (or higher value - don't remember).

For example ECOCON register is (in datasheet) in address 0x17 in group 4. In driver ECOCON is in address 0x75.

How this works?

bkamen · Posted: Sun Nov 15, 2009 11:22 am

Get the TCP/IP source from CCS. (you have to request it).
The ENC28j60 code for that works as I've been able to use it.

I did a quick compare and yes, they are very different.

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

PCM programmer · Joined: 06 Sep 2003 Posts: 21708

bkamen · Posted: Sun Nov 15, 2009 4:16 pm

Yea, I thought they might be doing something like that but didn't have time to dig so deep.

I did a quick compare.

I suppose if you're playing with the 28J60, you probably (although not necessarily) was TCPIP... so why not just get the whole stack.

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

lejma · Guest

i need to make UDP transmission : )

FvM · Joined: 27 Aug 2008 Posts: 2337 Location: Germany

Yes, UDP is also supported by the CCS stack. Smile

lejma · Guest

Ok. So... I need to transmit few 'integer' values in one UDP packet from PIC to PC.

Can anyone tell me what I need to 'include' and how to us it (if there is any 'already maked' driver).

For example in pic I've got :
a=10
b=30
c=20

and I need to transmit this values to PC.

bkamen · Posted: Mon Nov 16, 2009 1:07 pm

Ok. Before I dive into a long lengthy discussion, I need to know first how familiar you are with Ethernet and TCPIP.

How much information do you have already towards the making of this project?

This will help me gauge how much rambling I need to do.

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

Guest · Posted: Tue Nov 17, 2009 5:27 am

I'm familiar only with basic using of SPI...
and now I'm in the middle of reading ENC28J60 datasheet.
Suggestions ? :]

lejma · Guest

I know only that ENC28J60 is communicating with PIC via SPI.
I know that I need to make a packet from variables I want to transmit
and on PC I need to make variables from packet.

But I don't know how to configure IP /netmask .. etc. for ENC28J60
and how to make and send this packet in to LAN as UDP packet.

lejma · Guest

Can anybody hlp me ? ;/

bkamen · Posted: Tue Nov 17, 2009 12:07 pm

Ok, so you need to get a book on the OSI protocol stack model.

I can get you some ISBN book numbers if you wish.

You need to ask this: Do you need UDP over IP or can plain ethernet work ok for you?

Ethernet takes away the extra layer of IP if you don't need it.

There is a nice UDP/IP example included with the CCS TCP/IP Stack. You should probably still request that.

-Ben
_________________
Dazed and confused? I don't think so. Just "plain lost" will do. :D

Guest · Posted: Sun Dec 06, 2009 5:21 am

I need to transmit a char string[16] over the ethernet from PIC to PC by using this damn ENC and I still don't know how to do it. :((

Any help will be nice.

bkamen · Posted: Sun Dec 06, 2009 12:36 pm

arunb · Joined: 08 Sep 2003 Posts: 492 Location: India

Just curious ...why ethernet ?? why not RS 232 ??