Based verilog language, FPGA procedures to achieve frequency meter with digital display, switching frequency 48M, precision 1Hz, range 1Hz ~ 9999Hz, frequency and ultra-frequency tips lacks accuracy and range can vary with changes in the external device, in EP1C3T100C8 measured by the pro-

quartus_works_second
....................\Count0123From100Hz.v
....................\db
....................\..\add_sub_0fc.tdf
....................\..\add_sub_1fc.tdf
....................\..\add_sub_2fc.tdf
....................\..\add_sub_3dc.tdf
....................\..\add_sub_3fc.tdf
....................\..\add_sub_4dc.tdf
....................\..\add_sub_4fc.tdf
....................\..\add_sub_5dc.tdf
....................\..\add_sub_5fc.tdf
....................\..\add_sub_6dc.tdf
....................\..\add_sub_6fc.tdf
....................\..\add_sub_7dc.tdf
....................\..\add_sub_7fc.tdf
....................\..\add_sub_8dc.tdf
....................\..\add_sub_8fc.tdf
....................\..\add_sub_9dc.tdf
....................\..\add_sub_9fc.tdf
....................\..\add_sub_adc.tdf
....................\..\add_sub_bdc.tdf
....................\..\add_sub_jec.tdf
....................\..\add_sub_kec.tdf
....................\..\add_sub_lec.tdf
....................\..\add_sub_mec.tdf
....................\..\add_sub_nec.tdf
....................\..\add_sub_oec.tdf
....................\..\add_sub_pec.tdf
....................\..\add_sub_qec.tdf
....................\..\add_sub_rec.tdf
....................\..\add_sub_sec.tdf
....................\..\add_sub_tec.tdf
....................\..\add_sub_uec.tdf
....................\..\add_sub_vec.tdf
....................\..\alt_u_div_0re.tdf
....................\..\alt_u_div_2ue.tdf
....................\..\alt_u_div_6re.tdf
....................\..\alt_u_div_qte.tdf
....................\..\frequency_cnt.asm.qmsg
....................\..\frequency_cnt.cbx.xml
....................\..\frequency_cnt.cmp.bpm
....................\..\frequency_cnt.cmp.cdb
....................\..\frequency_cnt.cmp.ecobp
....................\..\frequency_cnt.cmp.hdb
....................\..\frequency_cnt.cmp.kpt
....................\..\frequency_cnt.cmp.logdb
....................\..\frequency_cnt.cmp.rdb
....................\..\frequency_cnt.cmp.tdb
....................\..\frequency_cnt.cmp0.ddb
....................\..\frequency_cnt.cmp_merge.kpt
....................\..\frequency_cnt.db_info
....................\..\frequency_cnt.eco.cdb
....................\..\frequency_cnt.fit.qmsg
....................\..\frequency_cnt.hier_info
....................\..\frequency_cnt.hif
....................\..\frequency_cnt.lpc.html
....................\..\frequency_cnt.lpc.rdb
....................\..\frequency_cnt.lpc.txt
....................\..\frequency_cnt.map.bpm
....................\..\frequency_cnt.map.cdb
....................\..\frequency_cnt.map.ecobp
....................\..\frequency_cnt.map.hdb
....................\..\frequency_cnt.map.kpt
....................\..\frequency_cnt.map.logdb
....................\..\frequency_cnt.map.qmsg
....................\..\frequency_cnt.map_bb.cdb
....................\..\frequency_cnt.map_bb.hdb
....................\..\frequency_cnt.map_bb.logdb
....................\..\frequency_cnt.pre_map.cdb
....................\..\frequency_cnt.pre_map.hdb
....................\..\frequency_cnt.rtlv.hdb
....................\..\frequency_cnt.rtlv_sg.cdb
....................\..\frequency_cnt.rtlv_sg_swap.cdb
....................\..\frequency_cnt.sgdiff.cdb
....................\..\frequency_cnt.sgdiff.hdb
....................\..\frequency_cnt.sld_design_entry.sci
....................\..\frequency_cnt.sld_design_entry_dsc.sci
....................\..\frequency_cnt.syn_hier_info
....................\..\frequency_cnt.tan.qmsg
....................\..\frequency_cnt.tis_db_list.ddb
....................\..\frequency_cnt.tmw_info
....................\..\frequency_cnt_global_asgn_op.abo
....................\..\lpm_divide_98m.tdf
....................\..\lpm_divide_g8m.tdf
....................\..\lpm_divide_s6m.tdf
....................\..\lpm_divide_v6m.tdf
....................\..\prev_cmp_frequency_cnt.asm.qmsg
....................\..\prev_cmp_frequency_cnt.fit.qmsg
....................\..\prev_cmp_frequency_cnt.map.qmsg
....................\..\prev_cmp_frequency_cnt.qmsg
....................\..\prev

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