Arudino Ethernet R3 + other devices

Projects Networking, Protocols, and Devices
1

Hello

I've bought an Arduino Ethernet R3 and want to use it on a project where I will measure power. For this I have a "Single-Phase Bi-Directional Power/Energy IC" (Cirrus Logic, Inc. | Cirrus Logic).
I'm pretty new to this and I have stumbled on a little problem. Arduino Ethernet doesn't allow multiple SPI slave usage, so I can't connect my energy IC to it.
I have looked at some examples, and it seems that all of them involve modifying the Arduino. I have tried following some but it seems that they are done on a older verison of Arduino Ethernet.
Have any of you guys stumbled on the same problem, and if so how have you solved it?

Sorry for the bad English.

Regards
Rudin

2

Arduino Ethernet doesn't allow multiple SPI slave usage, so I can't connect my energy IC to it.

What gave you that idea? There is a default SPI slave select, but that does not limit it to one SPI slave. I use 2 SPI devices on a Mega2560.

3

Well maybe I'm mistaken, but It doesn't seem to work on Arduino Ethernet, I can't speak for Mega2560. Here is one example I found earlier (MISO and Arduino Ethernet Shields « John's Ramblings).

4

The Wiznet W5100 has no problem with the MISO line. I use it with the uSD card interface all the time. You have a uSD slot on your Arduino Ethernet board, don't you? That is SPI. Why would they put both those devices on the same board if they could not be used together?

5

Well this is really good to hear.
Thank you for the quick reply.