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/b2ebe7ea-5381-4f64-89d5-ea3619e71801%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
