RS485 channel A should be pulled up and B down for fail-safe mode.
authorPat Thoyts <patthoyts@users.sourceforge.net>
Fri, 1 Sep 2017 00:38:53 +0000 (01:38 +0100)
committerPat Thoyts <patthoyts@users.sourceforge.net>
Fri, 1 Sep 2017 00:38:53 +0000 (01:38 +0100)
commitba459e3aeb4d04e035b88f96979cda2ef8e604a2
treeb48c4330762239f1cf7ed982d6adc7a8391c88f1
parent1a3728da19b1d3bc4967bf5c68ecc36dc0098231
RS485 channel A should be pulled up and B down for fail-safe mode.

The previous version has this swapped and we get a spike at the end of
each packet as the lines adjust to the non-driven state.
usb-rs485.sch