Uc/os-ii中出现这种问题怎么办 ？？？Undefined symbol PC_GetKey

linking...

NEWPRJ.axf: Error: L6218E: Undefined symbol PC_GetKey (referred from main.o).

NEWPRJ.axf: Not enough information to list image symbols.

NEWPRJ.axf: Finished: 1 information, 0 warning and 1 error messages.

Target not created

还有这个
Main.C(52): error:  #20: identifier "uCOS" is undefined
Main.C:         PC_VectSet(uCOS,OSCtxSw);

[ 本帖最后由 bhu_wll 于 2012-1-17 16:34 编辑 ]