Hi, I am facing same problem in serial communication. I am communicating with other device using UART -4 port on BBB (Debian operating system, with latest release of 2014-05-14). UART 4 port was enabled from uEnv.txt. Baud rate is set to 57600. Hardware used is standard one, suggested on BBB webpage. When communicated through PC, other device communicates well and there is no problem in communication. But when BBB is used, communication breaks intermittently. Since code is written in a continuous loop, communication gets re-established after few cycles. Priority of working software was also changed to highest level, but nothing worked.
Same procedure was followed for different baud rates and on UART -2. But problem still exists. Can you suggest some ideas to solve this problem? Thanks Kaubha On Friday, August 23, 2013 at 5:02:24 PM UTC+5:30, Gerald wrote: > > Which board is this? > > Gerald > > > > On Fri, Aug 23, 2013 at 6:29 AM, <pyro...@gmail.com <javascript:>> wrote: > >> Hello, >> >> I have problem while im using serial ports to communicate with other >> device. >> Im communicate with it using modbus communication but sometimes some data >> is missing (few bytes less, sometimes few bytes more). Every byte counts, >> so its important to get whole modbus frame. >> >> Im tried to use different uarts, but nothing changed. I tried to set >> lower baudrate and on lowest values this was working good, but i cannot >> communicate with some devices with 1200 or 2400 baudrate! >> Anyone had similiar problem? >> Maybe someone have any ideas what can cause this problems? >> >> >> Thanks. >> >> -- >> 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...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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.
