I'm just trying to solicit some opinions for the early stages of a potential project.
We have some batteries (legacy requirement, so we can't change that) that interface via Dallas 1-Wire and specifically use parasite power for wake-up. Our old design used a PSoC as the master, but we have no desire to return to that chip.
Our preference is to use an AVR (and preferably an XMEGA, given that's our recent design experience and tools), but do not AFAIAA have a native 1-wire implementation.
Because of other time-critical tasks that the chip will be required to perform, we cannot bit-bang, and I am somewhat skeptical of simply reacting to a timer for individual bits.
We're thinking something like the DS2482-100 http://www.maxim-ic.com/quick_vi.... Any opinions or experiences from anyone? What have other people done in the past?