这个怎么回事、。

转世书生

..\UCOSII\PORT\os_cpu_a.asm(255): warning: A1581W: Added 2 bytes of padding at address 0x82
linking...
..\OBJ\USART.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.
"..\OBJ\USART.axf" - 1 Error(s), 1 Warning(s).
Target not created

mack13013

错误：OS_CPU_ExceptStkBase 未定义，前面还有个警告