On Wed, Dec 22, 2010 at 3:32 PM, Poul-Henning Kamp <[email protected]> wrote:
> I used a shared opto-isolated async bus. You need two optocouplers > per microcontroller, and one place you power the shared bus, and > you're all set. > > I have yet to see an microcontroller without an async port. Opto-isolater? Why not just use fiber cable between cards. I know it sounds exotic but also seems to have half the parts count. those s/pdif jacks are so cheap and I bet you can use them as pretty much drop in replacements for opto-isolators. Would s/pdif jacks work as a physical layer? Really I just used I2C in my write-up as a place holder. I you say nothing no one ever says a blank paper is wrong and suggests something better. s optical isolation required when all the modules are sharing a common power supply? Does this means all the coax connectors need to be isolated. I guess some one better step up and propose a grounding scheme. That's not going to be me. ===== Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
