File list (Check if you may need any files):
4.External Interrupt
....................\app_ex.h
....................\app_ex_main.h
....................\app_ex_util.h
....................\Debug
....................\.....\Exe
....................\.....\...\int_ext.d51
....................\.....\List
....................\.....\Obj
....................\.....\...\int_ext.pbd
....................\.....\...\int_ext.r51
....................\.....\...\LCD3310.r51
....................\.....\...\wait.r51
....................\Desktop.ini
....................\hal.h
....................\int_ext.c
....................\int_ext.dep
....................\int_ext.ewd
....................\int_ext.ewp
....................\int_ext.eww
....................\LCD3310.c
....................\LCD3310.h
....................\RF04EB.h
....................\settings
....................\........\int_ext.cspy.bat
....................\........\int_ext.dbgdt
....................\........\int_ext.dni
....................\........\int_ext.wsdt
....................\wait.c
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