Hmm. just figured out I forgot to include the attachment (thought its not that much of information worthy anyway).
here we go... On Friday, July 8, 2016 at 7:11:32 AM UTC+2, Vitaly Kushner wrote: > > Greets. > > I'm trying to talk to a device using rs485. > > I got Logic Supply Serial Capes: > http://www.logicsupply.com/eu-en/cbb-serial/ bor beaglebone black. > > Before I'm trying to talk to the actual device, I'm trying to make 2 > boards with cape to talk to each other. > > Since couldn't find anything recent on the topic I'm following this > somewhat old howto: > http://inspire.logicsupply.com/2014/09/beaglebone-rs-485-communication.html > > the board runs latest resin.io and python hello-world project > (beaglebone-ff3af2 4.4.9+ kernel) as firmware. > > I've connected A to A, and B to B of 2 boards (see attachment). And the > jumpers are setup as in the howto abobe. > > From what I understand I should be able to have those 2 boards talk. > > One thing that might be very relevant: It looks like the serial device is > no longer /dev/ttyO4, but /dev/ttyS4. > > As you could probably guess I couldn't make those 2 boards talk. I'm doing > a "ser.read()" on one of them in a loop, and a "ser.write('some string')" > in the other, but I don't get anything. > > So.... > > What am I doing wrong ;) > > Thanks, in advance, > > > /Vitaly. > -- 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/69a08380-6a30-4e36-aa16-80ea89cf5137%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
