Build a Webserver with ENC28J60 +AVR

tetye · Joined: 04 Jan 2008 Posts: 6 Location: Budapest

Thanks for the information , i'll be waiting for your response.

UPDATE :

The main problem is , the tcp header is too long , tcpdump on linux sniffs this :

Paulvk · Joined: 28 Jul 2006 Posts: 1257 Location: SYDNEY

Have been looking at this but as I did not do the TCPIP part I have made only a little headway by increasing the the variable Msg_temp As String * 500 in the Sub Http I now get the message Loading on my android tablet instead of connecting but that's as far as I get!

Regards Paul

forter · Joined: 12 Jan 2012 Posts: 8

Hi, Paulvk!
Is it possible to change your code for ATMega644 to ATMega128?
In compiling process I have received a message "Out of SRAM ..." and "address out of bounds...".
Can you help me?

Paulvk · Joined: 28 Jul 2006 Posts: 1257 Location: SYDNEY

Hello forter

The code grew too big for the m644 so I went to a M1284p its pin for pin compattable and the posted code is for it. The M1284p has 16K of ram so large buffers are possible its very well suited to a task like this its also cheap compared to many other AVRs it runs well when using the 12.5Mhz from the ENC28J60. Note when using Bascom it is made to make it simple to change from one chip to another you just change the $regfile setting as long as the chip has enough resources and you note the port to pins changes Bascom will do the rest.

Regards Paul

doggies99 · Joined: 13 May 2013 Posts: 1

Hi, Mr. Paulvk

i'm a student from Indonesia..in my final project i'm try to make a webserver with enc28j60 with Atmega8535..and i'm little bit confused with the atmega code..because i preferably like in hardware section not in coding section..i have been read Mr. Benzijllstra code about connecting atmega with enc28j60 but it's hard for me to understand with the code..i'm just want to make enc28j60 as a DHCP Client because i'm using HAME A15 as a mini wifi router..so the Atmega+enc28j60 get the ip public from mini router..so i can access the board wireless..i really hope you can help me with the code..

i had been ask Mr. Benzijllstra and he reference me to ask you..

Thanks,
Ardi Wirasatria

albertsm · Joined: 09 Apr 2004 Posts: 5921 Location: Holland

when DIM var AT address is used, the change exist you might need to change the code because some chips have SRAM starting at &H60, &H100 or &H200 or &H1000

PtG76 · Joined: 18 Apr 2013 Posts: 11 Location: Uzhhorod

Greetings, Gentleman!

I need some help. I'm working on some kind of crossing point (checkpoint).
What I have: an ATmega128, LCD, enc28j60, Em4095 RFID, ds18B20 temp
sensor, PFC88583 some Leds and a Buzzer. The idea is: the worker checking
in by touching the RFID antenna with his card, the controller stores its ID
and a time stamp witch is followed with signal on buzzer and a green led.
On the other side there is a "daemon" which is time-to-time checks the
controller over the Ethernet. The daemon receives data by a request and it
works with received data (handling, analyzing).
The temperature sensor data displayed on LCD. Also there displayed the
current date and time.
The BIG problem is the stability of Ethernet. It is not stable Brick wall

Any suggestion are welcome.

Sincerely, Peter

Paulvk · Joined: 28 Jul 2006 Posts: 1257 Location: SYDNEY

Hello All

doggies99 Ben gives me more credit than I am due I still have a lot to learn I have not yet got my head around TCIP I have used his work and added to it a working DHCP would be good to have !

Peter Is your AVR running off the clock output of the ENC28J60 and not its own clock?

Regards Paul