Matrix keyboard scanning VHDL code, in the experiment on-board debugging, and for your reference

Matri_key
.........\cmp_state.ini
.........\db
.........\..\Matri_key.asm.qmsg
.........\..\Matri_key.cmp.cdb
.........\..\Matri_key.cmp.ddb
.........\..\Matri_key.cmp.hdb
.........\..\Matri_key.cmp.rdb
.........\..\Matri_key.cmp.tdb
.........\..\Matri_key.csf.qmsg
.........\..\Matri_key.db_info
.........\..\Matri_key.fit.qmsg
.........\..\Matri_key.hif
.........\..\Matri_key.map.cdb
.........\..\Matri_key.map.hdb
.........\..\Matri_key.map.qmsg
.........\..\Matri_key.Matri_key.sld_design_entry.sci
.........\..\Matri_key.pre_map.hdb
.........\..\Matri_key.project.hdb
.........\..\Matri_key.rtlv.hdb
.........\..\Matri_key.rtlv_sg.cdb
.........\..\Matri_key.rtlv_sg_swap.cdb
.........\..\Matri_key.sgdiff.cdb
.........\..\Matri_key.sgdiff.hdb
.........\..\Matri_key.tan.qmsg
.........\..\Matri_key_cmp.qrpt
.........\..\Matri_key_hier_info
.........\..\Matri_key_syn_hier_info
.........\division.vhd
.........\Matri_key.asm.rpt
.........\Matri_key.cdf
.........\Matri_key.done
.........\Matri_key.fit.eqn
.........\Matri_key.fit.rpt
.........\Matri_key.flow.rpt
.........\Matri_key.map.eqn
.........\Matri_key.map.rpt
.........\Matri_key.pin
.........\Matri_key.pof
.........\Matri_key.qpf
.........\Matri_key.qsf
.........\Matri_key.qws
.........\Matri_key.sof
.........\Matri_key.tan.rpt
.........\Matri_key.tan.summary
.........\Matri_key.vhd
.........\Matri_key_description.txt

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