[W5100 Ethernet] Use standalone without Arduino board

Development Tools IDE 1.x
1

Dear all,

For a project I want to use a (W5100) EthernetShield in combination with a "stand alone" Arduino.
So only the ATmega328 chip with it's crystal, Reset pullup, power etc.. (so I don't wanna use the Arduino board itself)

Question: what connections should I make from EthernetShield to the ATmega chip?

If I test this "stand alone" project with pin 10, 11, 12, 13 and 4 connected, and all the power pins (3.3 volt, 5 volt, GND's), then it doesn't work.

[edit] see picture how it's NOT working... why?

768×1365 156 KB

I have the sample sketch webserver running, but I can't connect to it. If I put the Shield on a Arduino board, then everything works great.

So what connections do I have to make more?

Thanks in advance,

Atmoz

2

i think you'll need to connect the 2 iscp headers to but not sure :stuck_out_tongue:

3

meerweten:
i think you'll need to connect the 2 iscp headers to but not sure :stuck_out_tongue:

2?
I only have 1 ISCP header on my shields... (are there shields with 2 ICSP headers?)

I was hoping that there was somewhere a guide or tutorial for how to connect a EthernetShield to a "bare" ATmega328 :slight_smile:

With kind regards,

Atmoz

4

i was talking about the iscp header of the arduino to, just try it nad find out, then find the pins that connects to the iscp header

5

You must use the ICSP connector for the SPI data lines if the ethernet shield has the ICSP connector. If it has the connector, the ethernet shield does not connect to D11-D13. It uses only the ICSP connector for SPI data lines.

The ICSP connector wiring is top center in the schematic.

D10 is still the slave select.

6

Thanks!!!

It's a little strange because in the demo-sketch what I have used it says: uses 10, 11, 12 and 13 ?!
But anyway: with above information it should work :slight_smile:

Kind regards,

Atmoz

7

Hmzzz, it doesn't work with the ICSP connections connected :frowning:

I've used both the Arduino-board and the EthetnetShield (not stacked). I connected both with 10cm long wires (all 6 connections of the ICSP header).

And further also the +5v, +3.3v, GND, and Vinput

Should I connect more then that?

Thanks in advance (again!!)

With kind regards,

Atmoz

8

Atmoz:
Hmzzz, it doesn't work with the ICSP connections connected :frowning:

I've used both the Arduino-board and the EthetnetShield (not stacked). I connected both with 10cm long wires (all 6 connections of the ICSP header).

And further also the +5v, +3.3v, GND, and Vinput

Should I connect more then that?

Thanks in advance (again!!)

With kind regards,

Atmoz

10, 11, 12 & 13 are mapped to the ICSP on the uno, but the input on the W5100 board only looks at the ICSP connector for the dual mapped pins 11, 12 & 13. the real pin 10 must go to the W5100 pin 10, then it would work.

of course with power and Gnd.