..UCOSIIPORTos_cpu_a.asm(255): warning: A1581W: Added 2 bytes of padding at address 0x82
linking...
..OBJUSART.axf: Error: L6218E: Undefined symbol OS_CPU_ExceptStkBase (referred from os_cpu_a.o).
Not enough information to list image symbols.
Finished: 1 information, 0 warning and 1 error messages.
"..OBJUSART.axf" - 1 Error(s), 1 Warning(s).
Target not created