IIR digital filter using a FPGA-based design, analyzes the ory and design method of IIR digital filter, then through QuartusⅡ design platform, using a top-down modular design the entire IIR digital filter divided into: timing control, delay, complement multiply and accumulate four functional modules. Respectively, after each module using VHDL description, simulation and synthesis.

EDA
...\IRR1
...\....\IRR1.bdf
...\....\IRR1.flow.rpt
...\....\IRR1.map.rpt
...\....\IRR1.map.summary
...\....\IRR1.qpf
...\....\IRR1.qsf
...\....\IRR1.qws
...\....\addyn.vhd
...\....\addyn.vhd.bak
...\....\control.vhd
...\....\control.vhd.bak
...\....\db
...\....\..\IRR1.cbx.xml
...\....\..\IRR1.cmp.rdb
...\....\..\IRR1.db_info
...\....\..\IRR1.eco.cdb
...\....\..\IRR1.hif
...\....\..\IRR1.map.qmsg
...\....\..\IRR1.map_bb.hdb
...\....\..\IRR1.sld_design_entry.sci
...\....\..\IRR1.tis_db_list.ddb
...\....\..\prev_cmp_IRR1.map.qmsg
...\....\..\prev_cmp_IRR1.qmsg
...\....\delay.vhd
...\....\delay.vhd.bak
...\....\incremental_db
...\....\..............\README
...\....\..............\compiled_partitions
...\....\smultadd1.vhd
...\....\smultadd1.vhd.bak
...\addyn
...\.....\addyn.asm.rpt
...\.....\addyn.bdf
...\.....\addyn.bsf
...\.....\addyn.done
...\.....\addyn.fit.rpt
...\.....\addyn.fit.smsg
...\.....\addyn.fit.summary
...\.....\addyn.flow.rpt
...\.....\addyn.map.rpt
...\.....\addyn.map.summary
...\.....\addyn.pin
...\.....\addyn.pof
...\.....\addyn.qpf
...\.....\addyn.qsf
...\.....\addyn.qws
...\.....\addyn.sim.rpt
...\.....\addyn.sof
...\.....\addyn.tan.rpt
...\.....\addyn.tan.summary
...\.....\addyn.vhd
...\.....\addyn.vhd.bak
...\.....\addyn.vwf
...\.....\db
...\.....\..\addyn.asm.qmsg
...\.....\..\addyn.asm_labs.ddb
...\.....\..\addyn.cbx.xml
...\.....\..\addyn.cmp.bpm
...\.....\..\addyn.cmp.cdb
...\.....\..\addyn.cmp.ecobp
...\.....\..\addyn.cmp.hdb
...\.....\..\addyn.cmp.kpt
...\.....\..\addyn.cmp.logdb
...\.....\..\addyn.cmp.rdb
...\.....\..\addyn.cmp.tdb
...\.....\..\addyn.cmp0.ddb
...\.....\..\addyn.cmp2.ddb
...\.....\..\addyn.cmp_merge.kpt
...\.....\..\addyn.db_info
...\.....\..\addyn.eco.cdb
...\.....\..\addyn.eds_overflow
...\.....\..\addyn.fit.qmsg
...\.....\..\addyn.hier_info
...\.....\..\addyn.hif
...\.....\..\addyn.lpc.html
...\.....\..\addyn.lpc.rdb
...\.....\..\addyn.lpc.txt
...\.....\..\addyn.map.bpm
...\.....\..\addyn.map.cdb
...\.....\..\addyn.map.ecobp
...\.....\..\addyn.map.hdb
...\.....\..\addyn.map.kpt
...\.....\..\addyn.map.logdb
...\.....\..\addyn.map.qmsg
...\.....\..\addyn.map_bb.cdb
...\.....\..\addyn.map_bb.hdb
...\.....\..\addyn.map_bb.logdb
...\.....\..\addyn.pre_map.cdb
...\.....\..\addyn.pre_map.hdb
...\.....\..\addyn.rtlv.hdb
...\.....\..\addyn.rtlv_sg.cdb
...\.....\..\addyn.rtlv_sg_swap.cdb
...\.....\..\addyn.sgdiff.cdb
...\.....\..\addyn.sgdiff.hdb
...\.....\..\addyn.sim.cvwf
...\.....\..\addyn.sim.hdb
...\.....\..\addyn.sim.qmsg
...\.....\..\addyn.sim.rdb

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