Introduction - If you have any usage issues, please Google them yourself
A Xilinx spartan3 realize the clock, with time-accurate time display and date display, a good reference
Packet : 31767651eternityclock.rar filelist
eternityclock\.untf
eternityclock\automake.log
eternityclock\bitgen.ut
eternityclock\clockcore.bgn
eternityclock\clockcore.bld
eternityclock\clockcore.cmd_log
eternityclock\clockcore.drc
eternityclock\clockcore.lso
eternityclock\clockcore.mrp
eternityclock\clockcore.nc1
eternityclock\clockcore.ncd
eternityclock\clockcore.ngc
eternityclock\clockcore.ngd
eternityclock\clockcore.ngm
eternityclock\clockcore.ngr
eternityclock\clockcore.pad
eternityclock\clockcore.pad_txt
eternityclock\clockcore.par
eternityclock\clockcore.pcf
eternityclock\clockcore.placed_ncd_tracker
eternityclock\clockcore.prj
eternityclock\clockcore.routed_ncd_tracker
eternityclock\clockcore.syr
eternityclock\clockcore.twr
eternityclock\clockcore.twx
eternityclock\clockcore.ut
eternityclock\clockcore.v
eternityclock\clockcore.v.bak
eternityclock\clockcore.xpi
eternityclock\clockcore_map.ncd
eternityclock\clockcore_map.ngm
eternityclock\clockcore_pad.csv
eternityclock\clockcore_pad.txt
eternityclock\clockcore_vhdl.prj
eternityclock\clocktop.bgn
eternityclock\clocktop.bit
eternityclock\clocktop.bld
eternityclock\clocktop.cmd_log
eternityclock\clocktop.drc
eternityclock\clocktop.lfp
eternityclock\clocktop.lso
eternityclock\clocktop.mrp
eternityclock\clocktop.nc1
eternityclock\clocktop.ncd
eternityclock\clocktop.ngc
eternityclock\clocktop.ngd
eternityclock\clocktop.ngm
eternityclock\clocktop.ngr
eternityclock\clocktop.pad
eternityclock\clocktop.pad_txt
eternityclock\clocktop.par
eternityclock\clocktop.pcf
eternityclock\clocktop.placed_ncd_tracker
eternityclock\clocktop.prj
eternityclock\clocktop.routed_ncd_tracker
eternityclock\clocktop.stx
eternityclock\clocktop.sym
eternityclock\clocktop.syr
eternityclock\clocktop.twr
eternityclock\clocktop.twx
eternityclock\clocktop.ucf
eternityclock\clocktop.ucf.untf
eternityclock\clocktop.ut
eternityclock\clocktop.v
eternityclock\clocktop.xpi
eternityclock\clocktop_last_par.ncd
eternityclock\clocktop_map.ncd
eternityclock\clocktop_map.ngm
eternityclock\clocktop_pad.csv
eternityclock\clocktop_pad.txt
eternityclock\clocktop_vhdl.prj
eternityclock\coregen.log
eternityclock\coregen.prj
eternityclock\eternityclock.dhp
eternityclock\eternityclock.npl
eternityclock\noshake.bld
eternityclock\noshake.cmd_log
eternityclock\noshake.lso
eternityclock\noshake.ngc
eternityclock\noshake.ngd
eternityclock\noshake.ngr
eternityclock\noshake.prj
eternityclock\noshake.stx
eternityclock\noshake.syr
eternityclock\noshake.ucf
eternityclock\noshake_vhdl.prj
eternityclock\prjname.lso
eternityclock\shake.v
eternityclock\untitled.cdf
eternityclock\xst\work\hdllib.ref
eternityclock\xst\work\vlg0F\clocktop.bin
eternityclock\xst\work\vlg0F
eternityclock\xst\work\vlg59\noshake.bin
eternityclock\xst\work\vlg59
eternityclock\xst\work\vlg6D\clockcore.bin
eternityclock\xst\work\vlg6D
eternityclock\xst\work
eternityclock\xst
eternityclock\_impact.cmd
eternityclock\_impact.log
eternityclock\_ngo\netlist.lst
eternityclock\_ngo
eternityclock\_pace.ucf
eternityclock\__projnav\alu.gfl
eternityclock\__projnav\bitgen.rsp
eternityclock\__projnav\clockcore.xst
eternityclock\__projnav\clockcore_ncdTOut_tcl.rsp
eternityclock\__projnav\clocktop.xst
eternityclock\__projnav\clocktop_ncdTOut_tcl.rsp
eternityclock\__projnav\coregen.rsp
eternityclock\__projnav\ednTOngd_tcl.rsp
eternityclock\__projnav\eternityclock.gfl
eternityclock\__projnav\eternityclock_flowplus.gfl
eternityclock\__projnav\map.log
eternityclock\__projnav\nc1TOncd_tcl.rsp
eternityclock\__projnav\noshake.xst
eternityclock\__projnav\par.log
eternityclock\__projnav\parentAssignPackagePinsApp_tcl.rsp
eternityclock\__projnav\posttrc.log
eternityclock\__projnav\runXst_tcl.rsp
eternityclock\__projnav\xst_sprjTOstx_tcl.rsp
eternityclock\__projnav
eternityclock\__projnav.log
eternityclock\教训.txt
eternityclock