I ve never managed to get the Mega128 TWI (two wire interface,

also called I2C) interface working totally satisfactorily. It seems

to require some \"magic numbers\" I suspect it does some wierd

clocking tricks which results in strange waveforms with certain

settings. Just a suspicion, as I don t have a digital scope so I cannot

verify anything. And it s possible that the STA013 is very picky

about its I2C parameters, although I view this as less likely.

Nonetheless the current TWI parameters do work reliably. I don t consider

them optimal (I d like it faster) but if you want to play with

the TWI interface, be warned, it s extremely easy to break it.

Not an issue per-se just a warning.