文件名称:key_piano
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按键消抖，Verilog编写，可用用，在quartus仿真过，也下载到FPGA开发板啦，可用。-Verilog code, available to use, in the quartus simulation, also downloaded to the FPGA development board, is available.
(系统自动生成,下载前可以参看下载内容)
下载文件列表
key_piano
.........\lcd1602
.........\.......\db
.........\.......\..\lcd1602.amm.cdb
.........\.......\..\lcd1602.asm.qmsg
.........\.......\..\lcd1602.asm.rdb
.........\.......\..\lcd1602.asm_labs.ddb
.........\.......\..\lcd1602.cbx.xml
.........\.......\..\lcd1602.cmp.bpm
.........\.......\..\lcd1602.cmp.cdb
.........\.......\..\lcd1602.cmp.hdb
.........\.......\..\lcd1602.cmp.kpt
.........\.......\..\lcd1602.cmp.logdb
.........\.......\..\lcd1602.cmp.rdb
.........\.......\..\lcd1602.cmp_merge.kpt
.........\.......\..\lcd1602.cycloneive_io_sim_cache.45um_ff_1200mv_0c_fast.hsd
.........\.......\..\lcd1602.cycloneive_io_sim_cache.45um_ss_1200mv_0c_slow.hsd
.........\.......\..\lcd1602.cycloneive_io_sim_cache.45um_ss_1200mv_85c_slow.hsd
.........\.......\..\lcd1602.db_info
.........\.......\..\lcd1602.fit.qmsg
.........\.......\..\lcd1602.hier_info
.........\.......\..\lcd1602.hif
.........\.......\..\lcd1602.idb.cdb
.........\.......\..\lcd1602.lpc.html
.........\.......\..\lcd1602.lpc.rdb
.........\.......\..\lcd1602.lpc.txt
.........\.......\..\lcd1602.map.bpm
.........\.......\..\lcd1602.map.cdb
.........\.......\..\lcd1602.map.hdb
.........\.......\..\lcd1602.map.kpt
.........\.......\..\lcd1602.map.logdb
.........\.......\..\lcd1602.map.qmsg
.........\.......\..\lcd1602.map.rdb
.........\.......\..\lcd1602.map_bb.cdb
.........\.......\..\lcd1602.map_bb.hdb
.........\.......\..\lcd1602.map_bb.logdb
.........\.......\..\lcd1602.pre_map.cdb
.........\.......\..\lcd1602.pre_map.hdb
.........\.......\..\lcd1602.rom0_lcd1602_bbc1b3e2.hdl.mif
.........\.......\..\lcd1602.root_partition.map.reg_db.cdb
.........\.......\..\lcd1602.routing.rdb
.........\.......\..\lcd1602.rtlv.hdb
.........\.......\..\lcd1602.rtlv_sg.cdb
.........\.......\..\lcd1602.rtlv_sg_swap.cdb
.........\.......\..\lcd1602.sgdiff.cdb
.........\.......\..\lcd1602.sgdiff.hdb
.........\.......\..\lcd1602.sld_design_entry.sci
.........\.......\..\lcd1602.sld_design_entry_dsc.sci
.........\.......\..\lcd1602.smart_action.txt
.........\.......\..\lcd1602.smp_dump.txt
.........\.......\..\lcd1602.sta.qmsg
.........\.......\..\lcd1602.sta.rdb
.........\.......\..\lcd1602.sta_cmp.8_slow_1200mv_85c.tdb
.........\.......\..\lcd1602.syn_hier_info
.........\.......\..\lcd1602.tis_db_list.ddb
.........\.......\..\lcd1602.tiscmp.fast_1200mv_0c.ddb
.........\.......\..\lcd1602.tiscmp.fastest_slow_1200mv_0c.ddb
.........\.......\..\lcd1602.tiscmp.fastest_slow_1200mv_85c.ddb
.........\.......\..\lcd1602.tiscmp.slow_1200mv_0c.ddb
.........\.......\..\lcd1602.tiscmp.slow_1200mv_85c.ddb
.........\.......\..\lcd1602.tmw_info
.........\.......\..\logic_util_heursitic.dat
.........\.......\..\prev_cmp_lcd1602.qmsg
.........\.......\incremental_db
.........\.......\..............\README
.........\.......\..............\compiled_partitions
.........\.......\..............\...................\lcd1602.db_info
.........\.......\..............\...................\lcd1602.root_partition.cmp.cdb
.........\.......\..............\...................\lcd1602.root_partition.cmp.dfp
.........\.......\..............\...................\lcd1602.root_partition.cmp.hdb
.........\.......\..............\...................\lcd1602.root_partition.cmp.kpt
.........\.......\..............\...................\lcd1602.root_partition.cmp.logdb
.........\.......\..............\...................\lcd1602.root_partition.cmp.rcfdb
.........\.......\..............\...................\lcd1602.root_partition.map.cdb
.........\.......\..............\...................\lcd1602.root_partition.map.dpi
.........\.......\..............\...................\lcd1602.root_partition.map.hbdb.cdb
.........\.......\..............\...................\lcd1602.root_partition.map.hbdb.hb_info
.........\.......\..............\...................\lcd1602.root_partition.map.hbdb.hdb
.........\.......\..............\...................\lcd1602.root_partition.map.hbdb.sig
.........\.......\..............\...................\lcd1602.root_partition.map.hdb
.........\.......\..............\...................\lcd1602.root_par