display.c的颜色跟其他的颜色不一样，当编译的时候如果将它放在user里 编译不会出问题 如果放在hardware里 就会出现问题，编译结果如下：
undefined first referenced
symbol in file
--------- ----------------
clear_5110 ./user/main.obj
init_5110 ./user/main.obj
wstr_5110 ./user/main.obj
error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking; "g2553.out" not built
gmake: *** [g2553.out] Error 1
求帮助，如何解决
