I trust that I might save the time of others who want to connect UART4 to the Pi-2 UART: It is required to connect the ground of both boards.
-- Bill Barnett -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
