Re: [Gumstix-users] I2c communication questions

[Dave H. <dhy...@gm...>]

Hi Mark,

> How consistent is the bus... i.e if I send something from the robostix side,
> will I get a bunch of NACK s or will it be enough simply send one.

Are you talking about the NACK's that occur after each byte? The i2c
protocol says that you're supposed to send a NACK when you don't want
to receive any more data. The linux driver does this automatically.

If you're interested in this level of detail, I suggest that you read
the i2c specification and/or the SMBus specification.

You can find out more about i2c over here:
http://www.i2c-bus.org/I2C_Bus.15.0.html?&no_cache=1

-- 
Dave Hylands
Vancouver, BC, Canada
http://www.DaveHylands.com/