I'm trying to implement a hart protocol on my device. As you know it is a FSK based communication on a 4-20mA current loop. I'm using Atxmega128 and DS8500(maxim hart modem).
I can send and receive simple characters and modem converts them into FSK perfectly. My main problem is with timing. if anyone had implement it before me I'll be glad to hear some advise on it.
Any suggestions which makes this path more clear are welcome.