This article describes the decimal-based VHDL, and other precision frequency meter design, using VHDL language, the use of top-down design, the system is divided by function layer hierarchical design method, the use of Quartus8.0 development environment, implemented frequency meter design.

基于FPGA VHDL语言的等精度频率测量\CLK_DIV.bsf
.................................\CLK_DIV.inc
.................................\CLK_DIV.vhd
.................................\db\add_sub_lkc.tdf
.................................\..\add_sub_mkc.tdf
.................................\..\alt_u_div_06f.tdf
.................................\..\alt_u_div_c5f.tdf
.................................\..\alt_u_div_k2f.tdf
.................................\..\alt_u_div_k5f.tdf
.................................\..\alt_u_div_m5f.tdf
.................................\..\alt_u_div_o5f.tdf
.................................\..\alt_u_div_q5f.tdf
.................................\..\lpm_divide_9vp.tdf
.................................\..\lpm_divide_l0q.tdf
.................................\..\lpm_divide_p0q.tdf
.................................\..\lpm_divide_q0q.tdf
.................................\..\lpm_divide_r0q.tdf
.................................\..\lpm_divide_s0q.tdf
.................................\..\lpm_divide_v0q.tdf
.................................\..\mult_5ct.tdf
.................................\..\mult_edt.tdf
.................................\..\mult_ldt.tdf
.................................\..\mult_odt.tdf
.................................\..\mult_pdt.tdf
.................................\..\mult_qdt.tdf
.................................\..\mult_rdt.tdf
.................................\..\PLJtest.db_info
.................................\..\PLJtest.eco.cdb
.................................\..\PLJtest.sim.cvwf
.................................\..\PLJtest.sld_design_entry.sci
.................................\..\prev_cmp_PLJtest.asm.qmsg
.................................\..\prev_cmp_PLJtest.fit.qmsg
.................................\..\prev_cmp_PLJtest.map.qmsg
.................................\..\prev_cmp_PLJtest.qmsg
.................................\..\prev_cmp_PLJtest.sim.qmsg
.................................\..\prev_cmp_PLJtest.sta.qmsg
.................................\..\sign_div_unsign_5nh.tdf
.................................\..\sign_div_unsign_9nh.tdf
.................................\..\sign_div_unsign_anh.tdf
.................................\..\sign_div_unsign_bnh.tdf
.................................\..\sign_div_unsign_cnh.tdf
.................................\..\sign_div_unsign_fnh.tdf
.................................\..\sign_div_unsign_plh.tdf
.................................\..\wed.wsf
.................................\lpm_divide0.bsf
.................................\lpm_divide0.cmp
.................................\lpm_divide0.qip
.................................\lpm_divide0.vhd
.................................\lpm_mult0.bsf
.................................\lpm_mult0.cmp
.................................\lpm_mult0.qip
.................................\lpm_mult0.vhd
.................................\lpm_mult0_wave0.jpg
.................................\lpm_mult0_waveforms.html
.................................\PLJ.bsf
.................................\PLJ.vhd
.................................\PLJtest.asm.rpt
.................................\PLJtest.bdf
.................................\PLJtest.cdf
.................................\PLJtest.done
.................................\PLJtest.dpf
.................................\PLJtest.fit.rpt
.................................\PLJtest.fit.smsg
.................................\PLJtest.fit.summary
.................................\PLJtest.flow.rpt
.................................\PLJtest.map.rpt
.................................\PLJtest.map.summary
.................................\PLJtest.pin
.................................\PLJtest.pof
.................................\PLJtest.qpf
.................................\PLJtest.qsf
.................................\PLJtest.qws
.................................\PLJtest.sim.rpt
.................................\PLJtest.sof
.................................\PLJtest.sta.rpt
.................................\PLJtest.sta.summary
.................................\PLJtest.tan.rpt
.................................\PLJte

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