实验十九  DS1302实时时钟
........................\BACKUP
........................\......\DS1302.C.110319214446
........................\......\DS1302.C.110319215224
........................\......\DS1302.C.110319215424
........................\......\DS1302.C.110319220804
........................\......\DS1302.C.110319220830
........................\......\DS1302.C.110319220930
........................\......\DS1302.C.110319221840
........................\......\DS1302.C.110319221908
........................\......\DS1302.C.110320151736
........................\......\DS1302.C.110320152152
........................\......\DS1302.C.110320152224
........................\......\DS1302.C.110320152346
........................\......\DS1302.C.110320152510
........................\......\DS1302.C.110320152554
........................\......\DS1302._C
........................\DS1302.C
........................\DS1302.cof
........................\DS1302.dbg
........................\DS1302.hex
........................\DS1302.lis
........................\DS1302.lk
........................\DS1302.lst
........................\DS1302.mak
........................\DS1302.mp
........................\DS1302.o
........................\DS1302.prj
........................\DS1302.SRC