This a simple written using VHDL digital frequency meter, it can measure the frequency range: 0 ~ 50MHZ, when the frequency of the signal being measured is greater the higher its accuracy.

plj
...\cnt10.acf
...\cnt10.fit
...\cnt10.hex
...\cnt10.hif
...\cnt10.mmf
...\cnt10.ndb
...\cnt10.pin
...\cnt10.pof
...\cnt10.rpt
...\cnt10.snf
...\cnt10.sof
...\CNT10.sym
...\cnt10.ttf
...\cnt10.vhd
...\controller.acf
...\controller.fit
...\controller.hex
...\controller.hif
...\controller.mmf
...\controller.ndb
...\controller.pin
...\controller.pof
...\controller.rpt
...\controller.scf
...\controller.snf
...\controller.sof
...\CONTROLLER.sym
...\controller.ttf
...\controller.vhd
...\LIB.DLS
...\plj.acf
...\plj.fit
...\plj.gdf
...\plj.hex
...\plj.hif
...\plj.mmf
...\plj.ndb
...\plj.pin
...\plj.pof
...\plj.rpt
...\plj.scf
...\plj.snf
...\plj.sof
...\plj.ttf
...\reg.acf
...\reg.fit
...\reg.hex
...\reg.hif
...\reg.mmf
...\reg.ndb
...\reg.pin
...\reg.pof
...\reg.rpt
...\reg.snf
...\reg.sof
...\REG.sym
...\reg.ttf
...\reg.vhd
...\shuchu.acf
...\shuchu.fit
...\shuchu.gdf
...\shuchu.hex
...\shuchu.hif
...\shuchu.inc
...\shuchu.mmf
...\shuchu.ndb
...\shuchu.pin
...\shuchu.pof
...\shuchu.rpt
...\shuchu.scf
...\shuchu.snf
...\shuchu.sof
...\shuchu.sym
...\shuchu.ttf
...\U0447628.DLS
...\U0500173.DLS
...\U1416716.DLS
...\U2374988.DLS
...\U3461550.DLS
...\U6005285.DLS
...\U6082672.DLS
...\U6422468.DLS
...\U6764965.DLS

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