RS-485 is a multi-drop bus using 2 or 4 wires. It does not include hardware flow control and hence the RTS signal is not used. If you have a device that needs RTS, it is probably RS-232. Look at any wiring diagram for RS-485 connections.
> On Jun 16, 2020, at 8:50 PM, Micka <[email protected]> wrote: > > Can someone explain me why we can't use the rts signal for the rs485 ? > > Le mer. 17 juin 2020 à 00:24, Bekir Bahadir <[email protected] > <mailto:[email protected]>> a écrit : > Also Im trying to get rs485 work over gpio with active high when > transmitting. Can anyone help? Ive creqtet a net dts with the gpios for > enabling the transmitter. Fo i need to patch the kernel for rs485 or is it > alreqdy included in the omap driver? > > -- > For more options, visit http://beagleboard.org/discuss > <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] > <mailto:beagleboard%[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/ce353b99-82d0-4b35-b310-fc4d756d391co%40googlegroups.com > > <https://groups.google.com/d/msgid/beagleboard/ce353b99-82d0-4b35-b310-fc4d756d391co%40googlegroups.com>. > > -- > For more options, visit http://beagleboard.org/discuss > <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] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAF%2BMRtm%3DppGWXAmjp74EjTFgzPrmPJGE4i07KkGtmvRXR-4NMw%40mail.gmail.com > > <https://groups.google.com/d/msgid/beagleboard/CAF%2BMRtm%3DppGWXAmjp74EjTFgzPrmPJGE4i07KkGtmvRXR-4NMw%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/7A49D2F4-85EE-4880-B501-ACB578CD92A8%40gmail.com.
