This design a 4 digit lock, and verify its operation. 1, the basic functions: (1) unlock password is four decimal numbers, through buttons to enter your password, enter the password in the four digital tube display, if the password is preset with the lock consistent output unlock signal (to light an LED indicates unlocked). (2) push button switch input must debounce processing. 2, the expansion function: the user can set the password for the lock If you enter an incorrect password three times, the output alarm signal, alarm signal can be flashing LED digital tube or a decimal point instructions. Set a reset button, forget the password via the reset button to restore the factory original password, such as the original password is " 1234" other useful features.

lock
....\db
....\..\lock.asm.qmsg
....\..\lock.asm.rdb
....\..\lock.asm_labs.ddb
....\..\lock.cbx.xml
....\..\lock.cmp.bpm
....\..\lock.cmp.cdb
....\..\lock.cmp.ecobp
....\..\lock.cmp.hdb
....\..\lock.cmp.kpt
....\..\lock.cmp.logdb
....\..\lock.cmp.rdb
....\..\lock.cmp.tdb
....\..\lock.cmp0.ddb
....\..\lock.cmp2.ddb
....\..\lock.cmp_merge.kpt
....\..\lock.db_info
....\..\lock.eco.cdb
....\..\lock.fit.qmsg
....\..\lock.hier_info
....\..\lock.hif
....\..\lock.lpc.html
....\..\lock.lpc.rdb
....\..\lock.lpc.txt
....\..\lock.map.bpm
....\..\lock.map.cdb
....\..\lock.map.ecobp
....\..\lock.map.hdb
....\..\lock.map.kpt
....\..\lock.map.logdb
....\..\lock.map.qmsg
....\..\lock.map_bb.cdb
....\..\lock.map_bb.hdb
....\..\lock.map_bb.logdb
....\..\lock.pre_map.cdb
....\..\lock.pre_map.hdb
....\..\lock.rtlv.hdb
....\..\lock.rtlv_sg.cdb
....\..\lock.rtlv_sg_swap.cdb
....\..\lock.sgdiff.cdb
....\..\lock.sgdiff.hdb
....\..\lock.sld_design_entry.sci
....\..\lock.sld_design_entry_dsc.sci
....\..\lock.smart_action.txt
....\..\lock.syn_hier_info
....\..\lock.tan.qmsg
....\..\lock.tis_db_list.ddb
....\..\lock.tmw_info
....\..\logic_util_heursitic.dat
....\..\prev_cmp_lock.asm.qmsg
....\..\prev_cmp_lock.fit.qmsg
....\..\prev_cmp_lock.map.qmsg
....\..\prev_cmp_lock.qmsg
....\..\prev_cmp_lock.tan.qmsg
....\incremental_db
....\..............\README
....\..............\compiled_partitions
....\..............\...................\lock.root_partition.cmp.cdb
....\..............\...................\lock.root_partition.cmp.dfp
....\..............\...................\lock.root_partition.cmp.hdb
....\..............\...................\lock.root_partition.cmp.kpt
....\..............\...................\lock.root_partition.cmp.logdb
....\..............\...................\lock.root_partition.cmp.rcfdb
....\..............\...................\lock.root_partition.cmp.re.rcfdb
....\..............\...................\lock.root_partition.map.cdb
....\..............\...................\lock.root_partition.map.dpi
....\..............\...................\lock.root_partition.map.hdb
....\..............\...................\lock.root_partition.map.kpt
....\lock.asm.rpt
....\lock.cdf
....\lock.done
....\lock.dpf
....\lock.fit.rpt
....\lock.fit.smsg
....\lock.fit.summary
....\lock.flow.rpt
....\lock.map
....\lock.map.rpt
....\lock.map.summary
....\lock.pin
....\lock.pof
....\lock.qpf
....\lock.qsf
....\lock.qws
....\lock.sof
....\lock.tan.rpt
....\lock.tan.summary
....\lock.vhd
....\lock.vhd.bak
....\output_file.map
....\output_file.pof

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