Hello,
I am trying to enable the RS485 port, but ttymxc1 doesn’t show up in /dev (ttymxc0 and ttymxc2 are there).
I tried to follow the instructions here:
Hit any key to stop autoboot: 0
=> setenv is_cbi 1
=> saveenv
=> reset
However, the setting is_cbi = yes causes the board to fail to boot, because the dtb file is not included in the device tree files:
Failed to load '/boot/dtbs/4.9.150-imx6-sr/imx6dl-hummingboard2-cbi-emmc-som-v15.dtb'
What is the best way to get RS 485 working in the latest software?
Thanks,
John