In your version.sh output I don't see the UART 1 enabled. Add the BB-UART1-00A0.dtbo to the uEnv.txt as shown below to enable it.
uboot_overlay_addr0=/lib/firmware/BB-UART1-00A0.dtbo Then reset the device and should work. To test it, hook up a scope and send some characters via the terminal as shown here <https://raspberry-projects.com/pi/command-line/io-pins-command-line/uart-transmit-from-the-command-line> . On Tuesday, 15 October 2019 01:05:45 UTC+13, Mridul Ahuja wrote: > > > I have a BeagleBone Black running *Debian 9.9 2019-08-03 4GB SD IoT *( > https://beagleboard.org/latest-images). I want to integrate it with > Sim900a GSM module. But I can't get the UART working. I've connected the > pins P9.24 (UART1 TX) to RX of the module, P9.26 (UART1 RX) to TX of the > module, and P9.2 (DGND) to Gnd of the module. Also I've configured the pins > to work as UART by using sudo config-pin P9.24 uart > > I've tried other UARTs also but no luck. Any help please ? > -- 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/ab7c9810-3c94-42b6-b259-8d9e4d0a2d19%40googlegroups.com.
