FPGA using the frequency of the test signal, and using the internal high-speed counters and other precision measurement method for accurate measurement of the frequency of the external signal. Measuring range 10Hz ~ 100M.

201604plj\cnt.bsf
.........\cnt.vhd
.........\cnt.vhd.bak
.........\db\add_sub_7pc.tdf
.........\..\add_sub_8pc.tdf
.........\..\add_sub_lkc.tdf
.........\..\add_sub_mkc.tdf
.........\..\alt_u_div_66f.tdf
.........\..\alt_u_div_a7f.tdf
.........\..\alt_u_div_c2f.tdf
.........\..\alt_u_div_c5f.tdf
.........\..\alt_u_div_o2f.tdf
.........\..\alt_u_div_oaf.tdf
.........\..\alt_u_div_u5f.tdf
.........\..\cntr_09i.tdf
.........\..\cntr_84i.tdf
.........\..\cntr_e4i.tdf
.........\..\logic_util_heursitic.dat
.........\..\lpm_constant_nf6.tdf
.........\..\lpm_divide_0tp.tdf
.........\..\lpm_divide_93q.tdf
.........\..\lpm_divide_aup.tdf
.........\..\lpm_divide_i1q.tdf
.........\..\lpm_divide_nup.tdf
.........\..\lpm_divide_phr.tdf
.........\..\lpm_divide_qsp.tdf
.........\..\mult_2qp.tdf
.........\..\mult_2vp.tdf
.........\..\mult_eqp.tdf
.........\..\mult_gqp.tdf
.........\..\myplj.cbx.xml
.........\..\myplj.cmp.bpm
.........\..\myplj.cmp.cdb
.........\..\myplj.cmp.hdb
.........\..\myplj.cmp.logdb
.........\..\myplj.cmp.rdb
.........\..\myplj.cmp_merge.kpt
.........\..\myplj.db_info
.........\..\myplj.fit.qmsg
.........\..\myplj.hier_info
.........\..\myplj.hif
.........\..\myplj.lpc.html
.........\..\myplj.lpc.rdb
.........\..\myplj.lpc.txt
.........\..\myplj.map.bpm
.........\..\myplj.map.cdb
.........\..\myplj.map.hdb
.........\..\myplj.map.kpt
.........\..\myplj.map.logdb
.........\..\myplj.map.qmsg
.........\..\myplj.map_bb.cdb
.........\..\myplj.map_bb.hdb
.........\..\myplj.map_bb.logdb
.........\..\myplj.pre_map.cdb
.........\..\myplj.pre_map.hdb
.........\..\myplj.rtlv.hdb
.........\..\myplj.rtlv_sg.cdb
.........\..\myplj.rtlv_sg_swap.cdb
.........\..\myplj.sgdiff.cdb
.........\..\myplj.sgdiff.hdb
.........\..\myplj.sim.cvwf
.........\..\myplj.sld_design_entry.sci
.........\..\myplj.sld_design_entry_dsc.sci
.........\..\myplj.smart_action.txt
.........\..\myplj.syn_hier_info
.........\..\myplj.tis_db_list.ddb
.........\..\myplj.tmw_info
.........\..\prev_cmp_myplj.asm.qmsg
.........\..\prev_cmp_myplj.fit.qmsg
.........\..\prev_cmp_myplj.map.qmsg
.........\..\prev_cmp_myplj.qmsg
.........\..\prev_cmp_myplj.sim.qmsg
.........\..\prev_cmp_myplj.tan.qmsg
.........\..\sign_div_unsign_5nh.tdf
.........\..\sign_div_unsign_enh.tdf
.........\..\sign_div_unsign_inh.tdf
.........\..\sign_div_unsign_llh.tdf
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.........\..\wed.wsf
.........\DCHUFA.bsf
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.........\display.bsf
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.........\displed.bsf
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.........\dq.bsf
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.........\exch40to20.bsf
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.........\FREQUENCY.vhd
.........\FREQUENCY.vhd.bak
.........\FREQUENCY.vwf
.........\incremental_db\compiled_partitions\myplj.db_info
.........\..............\...................\myplj.root_partition.cmp.dfp

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