VHDL programming CPLD based on EDA technology development and development in order to achieve smooth countdown timer, and stopwatch. Time ranges, require 00.0S--99.9S, three digital tube display. (1) the Countdown: the keypad you can set the time (in seconds, the maximum time, time of 99.9 seconds). Over time, begin to realize through the keyboard, the end time. When reaching the set 00.0S countdown timer automatically stops the countdown, at the same time sounded. (2) along the time: initial 00.0S, started by key




File list:
watch
....\db
....\..\add_sub_00f.tdf
....\..\add_sub_6ph.tdf
....\..\add_sub_pnh.tdf
....\..\add_sub_qnh.tdf
....\..\add_sub_snh.tdf
....\..\watch.(0).cnf.cdb
....\..\watch.(0).cnf.hdb
....\..\watch.(1).cnf.cdb
....\..\watch.(1).cnf.hdb
....\..\watch.(2).cnf.cdb
....\..\watch.(2).cnf.hdb
....\..\watch.(20).cnf.cdb
....\..\watch.(20).cnf.hdb
....\..\watch.(3).cnf.cdb
....\..\watch.(3).cnf.hdb
....\..\watch.(41).cnf.cdb
....\..\watch.(41).cnf.hdb
....\..\watch.(42).cnf.cdb
....\..\watch.(42).cnf.hdb
....\..\watch.(43).cnf.cdb
....\..\watch.(43).cnf.hdb
....\..\watch.(44).cnf.cdb
....\..\watch.(44).cnf.hdb
....\..\watch.(45).cnf.cdb
....\..\watch.(45).cnf.hdb
....\..\watch.(46).cnf.cdb
....\..\watch.(46).cnf.hdb
....\..\watch.(47).cnf.cdb
....\..\watch.(47).cnf.hdb
....\..\watch.(48).cnf.cdb
....\..\watch.(48).cnf.hdb
....\..\watch.(49).cnf.cdb
....\..\watch.(49).cnf.hdb
....\..\watch.(50).cnf.cdb
....\..\watch.(50).cnf.hdb
....\..\watch.(51).cnf.cdb
....\..\watch.(51).cnf.hdb
....\..\watch.(52).cnf.cdb
....\..\watch.(52).cnf.hdb
....\..\watch.(53).cnf.cdb
....\..\watch.(53).cnf.hdb
....\..\watch.(54).cnf.cdb
....\..\watch.(54).cnf.hdb
....\..\watch.(55).cnf.cdb
....\..\watch.(55).cnf.hdb
....\..\watch.(56).cnf.cdb
....\..\watch.(56).cnf.hdb
....\..\watch.(57).cnf.cdb
....\..\watch.(57).cnf.hdb
....\..\watch.(58).cnf.cdb
....\..\watch.(58).cnf.hdb
....\..\watch.(59).cnf.cdb
....\..\watch.(59).cnf.hdb
....\..\watch.(7).cnf.cdb
....\..\watch.(7).cnf.hdb
....\..\watch.asm.qmsg
....\..\watch.cbx.xml
....\..\watch.cmp.cdb
....\..\watch.cmp.hdb
....\..\watch.cmp.logdb
....\..\watch.cmp.rdb
....\..\watch.cmp.tdb
....\..\watch.cmp0.ddb
....\..\watch.dbp
....\..\watch.db_info
....\..\watch.eco.cdb
....\..\watch.eds_overflow
....\..\watch.fit.qmsg
....\..\watch.hier_info
....\..\watch.hif
....\..\watch.map.cdb
....\..\watch.map.hdb
....\..\watch.map.logdb
....\..\watch.map.qmsg
....\..\watch.pre_map.cdb
....\..\watch.pre_map.hdb
....\..\watch.psp
....\..\watch.rtlv.hdb
....\..\watch.rtlv_sg.cdb
....\..\watch.rtlv_sg_swap.cdb
....\..\watch.sgdiff.cdb
....\..\watch.sgdiff.hdb
....\..\watch.sim.hdb
....\..\watch.sim.qmsg
....\..\watch.sim.rdb
....\..\watch.sim.vwf
....\..\watch.sld_design_entry.sci
....\..\watch.sld_design_entry_dsc.sci
....\..\watch.smp_dump.txt
....\..\watch.syn_hier_info
....\..\watch.tan.qmsg
....\..\wed.zsf
....\countdown.bsf
....\countdown.vhd
....\display.bsf
....\display.inc
....\display.vhd
....\keyscan.bsf
....\keyscan.vhd
....\time.bsf
....\time.vhd
....\watch.asm.rpt
....\watch.bdf
....\watch.cdf
....\watch.done
....\watch.dpf
....\watch.fit.rpt
....\watch.fit.summary
....\watch.flow.rpt
....\watch.map.rpt
....\watch.map.summary
....\watch.pin
....\watch.pof
....\watch.qpf
....\watch.qsf
....\watch.qws
....\watch.sim.rpt
....\watch.tan.rpt
....\watch.tan.summary
....\watch.vwf