FPGA verilog 高精度频率计 LCD1602 显示

【实例简介】
采用verilog HDL编写，高精度频率计，精度小于0.5%，测量范围1Hz~1MHz，采用LCD1602显示，代码带有完整注解。
【实例截图】
【核心代码】
79cf541e-220f-46e9-93cc-26a7f8f3db60
└── frequency_counter_lcd1602
├── data_neaten_latch.v
├── db
│   ├── frequency_counter_lcd1602.(0).cnf.cdb
│   ├── frequency_counter_lcd1602.(0).cnf.hdb
│   ├── frequency_counter_lcd1602.(10).cnf.cdb
│   ├── frequency_counter_lcd1602.(10).cnf.hdb
│   ├── frequency_counter_lcd1602.(11).cnf.cdb
│   ├── frequency_counter_lcd1602.(11).cnf.hdb
│   ├── frequency_counter_lcd1602.(12).cnf.cdb
│   ├── frequency_counter_lcd1602.(12).cnf.hdb
│   ├── frequency_counter_lcd1602.(13).cnf.cdb
│   ├── frequency_counter_lcd1602.(13).cnf.hdb
│   ├── frequency_counter_lcd1602.(14).cnf.cdb
│   ├── frequency_counter_lcd1602.(14).cnf.hdb
│   ├── frequency_counter_lcd1602.(15).cnf.cdb
│   ├── frequency_counter_lcd1602.(15).cnf.hdb
│   ├── frequency_counter_lcd1602.(16).cnf.cdb
│   ├── frequency_counter_lcd1602.(16).cnf.hdb
│   ├── frequency_counter_lcd1602.(17).cnf.cdb
│   ├── frequency_counter_lcd1602.(17).cnf.hdb
│   ├── frequency_counter_lcd1602.(18).cnf.cdb
│   ├── frequency_counter_lcd1602.(18).cnf.hdb
│   ├── frequency_counter_lcd1602.(19).cnf.cdb
│   ├── frequency_counter_lcd1602.(19).cnf.hdb
│   ├── frequency_counter_lcd1602.(1).cnf.cdb
│   ├── frequency_counter_lcd1602.(1).cnf.hdb
│   ├── frequency_counter_lcd1602.(20).cnf.cdb
│   ├── frequency_counter_lcd1602.(20).cnf.hdb
│   ├── frequency_counter_lcd1602.(21).cnf.cdb
│   ├── frequency_counter_lcd1602.(21).cnf.hdb
│   ├── frequency_counter_lcd1602.(22).cnf.cdb
│   ├── frequency_counter_lcd1602.(22).cnf.hdb
│   ├── frequency_counter_lcd1602.(23).cnf.cdb
│   ├── frequency_counter_lcd1602.(23).cnf.hdb
│   ├── frequency_counter_lcd1602.(24).cnf.cdb
│   ├── frequency_counter_lcd1602.(24).cnf.hdb
│   ├── frequency_counter_lcd1602.(25).cnf.cdb
│   ├── frequency_counter_lcd1602.(25).cnf.hdb
│   ├── frequency_counter_lcd1602.(26).cnf.cdb
│   ├── frequency_counter_lcd1602.(26).cnf.hdb
│   ├── frequency_counter_lcd1602.(27).cnf.cdb
│   ├── frequency_counter_lcd1602.(27).cnf.hdb
│   ├── frequency_counter_lcd1602.(28).cnf.cdb
│   ├── frequency_counter_lcd1602.(28).cnf.hdb
│   ├── frequency_counter_lcd1602.(29).cnf.cdb
│   ├── frequency_counter_lcd1602.(29).cnf.hdb
│   ├── frequency_counter_lcd1602.(2).cnf.cdb
│   ├── frequency_counter_lcd1602.(2).cnf.hdb
│   ├── frequency_counter_lcd1602.(30).cnf.cdb
│   ├── frequency_counter_lcd1602.(30).cnf.hdb
│   ├── frequency_counter_lcd1602.(31).cnf.cdb
│   ├── frequency_counter_lcd1602.(31).cnf.hdb
│   ├── frequency_counter_lcd1602.(32).cnf.cdb
│   ├── frequency_counter_lcd1602.(32).cnf.hdb
│   ├── frequency_counter_lcd1602.(33).cnf.cdb
│   ├── frequency_counter_lcd1602.(33).cnf.hdb
│   ├── frequency_counter_lcd1602.(34).cnf.cdb
│   ├── frequency_counter_lcd1602.(34).cnf.hdb
│   ├── frequency_counter_lcd1602.(35).cnf.cdb
│   ├── frequency_counter_lcd1602.(35).cnf.hdb
│   ├── frequency_counter_lcd1602.(36).cnf.cdb
│   ├── frequency_counter_lcd1602.(36).cnf.hdb
│   ├── frequency_counter_lcd1602.(37).cnf.cdb
│   ├── frequency_counter_lcd1602.(37).cnf.hdb
│   ├── frequency_counter_lcd1602.(39).cnf.cdb
│   ├── frequency_counter_lcd1602.(39).cnf.hdb
│   ├── frequency_counter_lcd1602.(3).cnf.cdb
│   ├── frequency_counter_lcd1602.(3).cnf.hdb
│   ├── frequency_counter_lcd1602.(40).cnf.cdb
│   ├── frequency_counter_lcd1602.(40).cnf.hdb
│   ├── frequency_counter_lcd1602.(41).cnf.cdb
│   ├── frequency_counter_lcd1602.(41).cnf.hdb
│   ├── frequency_counter_lcd1602.(43).cnf.cdb
│   ├── frequency_counter_lcd1602.(43).cnf.hdb
│   ├── frequency_counter_lcd1602.(45).cnf.cdb
│   ├── frequency_counter_lcd1602.(45).cnf.hdb
│   ├── frequency_counter_lcd1602.(47).cnf.cdb
│   ├── frequency_counter_lcd1602.(47).cnf.hdb
│   ├── frequency_counter_lcd1602.(48).cnf.cdb
│   ├── frequency_counter_lcd1602.(48).cnf.hdb
│   ├── frequency_counter_lcd1602.(4).cnf.cdb
│   ├── frequency_counter_lcd1602.(4).cnf.hdb
│   ├── frequency_counter_lcd1602.(51).cnf.cdb
│   ├── frequency_counter_lcd1602.(51).cnf.hdb
│   ├── frequency_counter_lcd1602.(52).cnf.cdb
│   ├── frequency_counter_lcd1602.(52).cnf.hdb
│   ├── frequency_counter_lcd1602.(53).cnf.cdb
│   ├── frequency_counter_lcd1602.(53).cnf.hdb
│   ├── frequency_counter_lcd1602.(55).cnf.cdb
│   ├── frequency_counter_lcd1602.(55).cnf.hdb
│   ├── frequency_counter_lcd1602.(56).cnf.cdb
│   ├── frequency_counter_lcd1602.(56).cnf.hdb
│   ├── frequency_counter_lcd1602.(58).cnf.cdb
│   ├── frequency_counter_lcd1602.(58).cnf.hdb
│   ├── frequency_counter_lcd1602.(5).cnf.cdb
│   ├── frequency_counter_lcd1602.(5).cnf.hdb
│   ├── frequency_counter_lcd1602.(6).cnf.cdb
│   ├── frequency_counter_lcd1602.(6).cnf.hdb
│   ├── frequency_counter_lcd1602.(7).cnf.cdb
│   ├── frequency_counter_lcd1602.(7).cnf.hdb
│   ├── frequency_counter_lcd1602.(8).cnf.cdb
│   ├── frequency_counter_lcd1602.(8).cnf.hdb
│   ├── frequency_counter_lcd1602.(9).cnf.cdb
│   ├── frequency_counter_lcd1602.(9).cnf.hdb
│   ├── frequency_counter_lcd1602.ae.hdb
│   ├── frequency_counter_lcd1602.asm_labs.ddb
│   ├── frequency_counter_lcd1602.asm.qmsg
│   ├── frequency_counter_lcd1602.cbx.xml
│   ├── frequency_counter_lcd1602.cmp0.ddb
│   ├── frequency_counter_lcd1602.cmp2.ddb
│   ├── frequency_counter_lcd1602.cmp.bpm
│   ├── frequency_counter_lcd1602.cmp.cdb
│   ├── frequency_counter_lcd1602.cmp.ecobp
│   ├── frequency_counter_lcd1602.cmp.hdb
│   ├── frequency_counter_lcd1602.cmp.kpt
│   ├── frequency_counter_lcd1602.cmp.logdb
│   ├── frequency_counter_lcd1602.cmp_merge.kpt
│   ├── frequency_counter_lcd1602.cmp.rdb
│   ├── frequency_counter_lcd1602.cmp.tdb
│   ├── frequency_counter_lcd1602.db_info
│   ├── frequency_counter_lcd1602.eco.cdb
│   ├── frequency_counter_lcd1602.fit.qmsg
│   ├── frequency_counter_lcd1602_global_asgn_op.abo
│   ├── frequency_counter_lcd1602.hier_info
│   ├── frequency_counter_lcd1602.hif
│   ├── frequency_counter_lcd1602.lpc.html
│   ├── frequency_counter_lcd1602.lpc.rdb
│   ├── frequency_counter_lcd1602.lpc.txt
│   ├── frequency_counter_lcd1602.map_bb.cdb
│   ├── frequency_counter_lcd1602.map_bb.hdb
│   ├── frequency_counter_lcd1602.map_bb.logdb
│   ├── frequency_counter_lcd1602.map.bpm
│   ├── frequency_counter_lcd1602.map.cdb
│   ├── frequency_counter_lcd1602.map.ecobp
│   ├── frequency_counter_lcd1602.map.hdb
│   ├── frequency_counter_lcd1602.map.kpt
│   ├── frequency_counter_lcd1602.map.logdb
│   ├── frequency_counter_lcd1602.map.qmsg
│   ├── frequency_counter_lcd1602.pre_map.cdb
│   ├── frequency_counter_lcd1602.pre_map.hdb
│   ├── frequency_counter_lcd1602.rtlv.hdb
│   ├── frequency_counter_lcd1602.rtlv_sg.cdb
│   ├── frequency_counter_lcd1602.rtlv_sg_swap.cdb
│   ├── frequency_counter_lcd1602.sgdiff.cdb
│   ├── frequency_counter_lcd1602.sgdiff.hdb
│   ├── frequency_counter_lcd1602.sld_design_entry_dsc.sci
│   ├── frequency_counter_lcd1602.sld_design_entry.sci
│   ├── frequency_counter_lcd1602.smp_dump.txt
│   ├── frequency_counter_lcd1602.syn_hier_info
│   ├── frequency_counter_lcd1602.tan.qmsg
│   ├── frequency_counter_lcd1602.tis_db_list.ddb
│   ├── frequency_counter_lcd1602.tmw_info
│   ├── prev_cmp_frequency_counter_lcd1602.asm.qmsg
│   ├── prev_cmp_frequency_counter_lcd1602.fit.qmsg
│   ├── prev_cmp_frequency_counter_lcd1602.map.qmsg
│   ├── prev_cmp_frequency_counter_lcd1602.qmsg
│   └── prev_cmp_frequency_counter_lcd1602.tan.qmsg
├── dis_tran.v
├── division_2_4_8_16.v
├── division50MHz_100Hz.v
├── frequency_cnt.v
├── frequency_counter_lcd1602.asm.rpt
├── frequency_counter_lcd1602.cdf
├── frequency_counter_lcd1602.done
├── frequency_counter_lcd1602.dpf
├── frequency_counter_lcd1602.fit.rpt
├── frequency_counter_lcd1602.fit.summary
├── frequency_counter_lcd1602.flow.rpt
├── frequency_counter_lcd1602.map.rpt
├── frequency_counter_lcd1602.map.summary
├── frequency_counter_lcd1602.pin
├── frequency_counter_lcd1602.pof
├── frequency_counter_lcd1602.qpf
├── frequency_counter_lcd1602.qsf
├── frequency_counter_lcd1602.qws
├── frequency_counter_lcd1602.sof
├── frequency_counter_lcd1602.tan.rpt
├── frequency_counter_lcd1602.tan.summary
├── frequency_counter_lcd1602.v
├── incremental_db
│   ├── compiled_partitions
│   │   ├── frequency_counter_lcd1602.root_partition.cmp.atm
│   │   ├── frequency_counter_lcd1602.root_partition.cmp.dfp
│   │   ├── frequency_counter_lcd1602.root_partition.cmp.hdbx
│   │   ├── frequency_counter_lcd1602.root_partition.cmp.kpt
│   │   ├── frequency_counter_lcd1602.root_partition.cmp.logdb
│   │   ├── frequency_counter_lcd1602.root_partition.cmp.rcf
│   │   ├── frequency_counter_lcd1602.root_partition.map.atm
│   │   ├── frequency_counter_lcd1602.root_partition.map.dpi
│   │   ├── frequency_counter_lcd1602.root_partition.map.hdbx
│   │   └── frequency_counter_lcd1602.root_partition.map.kpt
│   └── README
├── LCD_1602.v
└── singlekeymodule.v

4 directories, 191 files