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Topic: Attiny with ethernet shield (Read 1 time) previous topic - next topic

Letnic

I want to know if it is possible to put a ethernet shield W5100 on a Attiny chips ?
The ethernet shield need SPI port.

Thank you for your help

Coding Badly


Why would you want to do that?

It can't be cost.  The W5100 chip alone is going to run you about the same price as an ATmega328P processor.

It can't be physical size.  The W5100 chip is a monstrosity compared to a surface-mount ATmega328P processor.

It can't be power consumption.  AVR processors are all about the same.

As far as I know, the most SRAM available on an ATtiny processor is 512 bytes.  When doing ethernet communications, the extra memory of an ATmega328P processor is certainly worth a few extra dollars.

fungus

ATtinys don't have SPI but they have "USI" which can do the same thing.

It can be done but fixing up the libraries to make it work might be tricky.
No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

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