i flashed kernel and rootfs on the target. All Sierra Packages and Software removed from windows host. No legato installed on target. USB serial converter connected to VMWare Ubuntu 12.04.
Now I can connect the serial AR7554 linux console. If i try to open the microcom -s 115200 /dev/ttyAT there is no reaction. With colleagues native installed ubuntu, ttyAT is proper open able.
What’s the deal with my installation?