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Re: [AVR-Chat] Looking for i2c (TWI) using USI example (AVR Butterfly ATmega169)

2006-12-15 by Dave Hylands

Hi James,

On 12/14/06, James Ronald <jronald@chartermi.net> wrote:
> Tonight I tried to compile the i2c examples in AVRlib.  I found that the AVR
> Butterfly does not support i2c the same as the ATmega8, 128, 16, 163 and
> such.  Instead, the 169 uses the USI to do TWI.   I did find Atmel
> application note 310 which describes how to go about setting up USI to do
> TWI but I was hoping to find another example as well.  I have searched for
> the past few hours with little luck.  I'm surprised that I could not find
> examples of connecting an AVR Butterfly to a SRF08 an i2c compus or such.
> Anyway, if anyone has a TWI USI example I would be appreciative.

The openservo project: http://www.openservo.com/ was originally
designed for the AVR Tiny45/85 and it uses USI
http://www.openservo.com/viewcvs/viewcvs.cgi/OpenServo/ATtinyX5_Bootloader/

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

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