I have resolved this now. Turns out it was a problem with the hardware "cape" that I had prepared to mount XBEE on BBB. The Rx/Tx pins were swapped due to oversight. Everything works fine now.
Thanks everyone!! On Thursday, November 6, 2014 4:08:31 PM UTC-5, jimi...@gmail.com wrote: > > Hello Chris, > > I am sorry for the confusion. Let me explain the setup and then elaborate > the problem. > > So I have two XBEE/Zigbee devices. One of them is connected to BBB UART1. > The other is connected to my PC. > On BBB side, I use picocom terminal to transmit data. On PC side, I have > the X-CTU GUI provided by XBEE to send data/monitor received data. > > Now, when I transmit from BBB using picocom, I can see the data being > properly received by PC side XBEE. > However, when the PC side XBEE transmits data, it receives back the same > data after transmission. This is because, for some reason, the BBB on > receiving a byte transmits (echoes) back the same byte. > > Now coming to ssty, I believe the '-echo' option with BBB shall only > prevent any character that I type on picocom terminal from "appearing" > there on the terminal screen. > > On Thursday, November 6, 2014 3:34:05 PM UTC-5, c...@isbd.net wrote: >> >> jimi...@gmail.com wrote: >> > [-- text/plain, encoding 7bit, charset: UTF-8, 38 lines --] >> > >> > My understanding is 'echo' for ssty is just to turn ON/OFF echo of >> input >> > characters i.e. if '-echo' flag is used it would just prevent the input >> > characters I send via BBB from appearing on my screen. My problem is >> with >> > the data that BBB receives. Everytime BBB receives a byte, it transmits >> > back the same byte. >> > >> > I shall keep looking. >> > >> I don't follow what you're saying. The UART/tty 'receives' bytes from >> whatever is connected to it, that's what 'input' characters are. >> >> E.g. you have a terminal of some sort connected to the UART, what you >> type on the terminal are the 'input' characters and they're echoed >> back to the terminal as 'output' to the terminal (if echo is turned >> on). >> >> By characters you 'send via the BBB' I assume you mean they are sent >> by a program of some sort to the UART, if so they are just 'output' >> characters and you can't turn them off I don't think. What's the >> point of sending them if you turn them off? >> >> -- >> Chris Green >> ยท >> >> -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
