The IO pins used by UART5 are, by default, assigned to driving an LCD screen. You will need to reconfigure the IO, so that LCD/video is disabled, and the pins are re-assigned as UART I/O pins. You will need to modify the boot file and device tree. Start searching about how to edit the /boot/uEnv.text file, and your different options for re-configuring the necessary pins.
--- Graham == On Monday, May 22, 2017 at 8:04:06 PM UTC-5, [email protected] wrote: > > I am using a Beaglebone Black on a student project. In order to activate > the UART5 port, I type in “echo BB-UART5 > > /sys/devices/platform/bone_capemgr/slots” every time I power the board on. > However, even though the port does seem to be activated, uart5 never works > for any of the BBB’s I try (other UART ports on them work as well as usual) > . What can cause such problems specifically with UART5? How can I fix it? > -- 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/98e63098-1ea9-496a-8b9c-909f1fd56175%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
