Using the counter to design the delay function, through the flashing of four LED lights, we can observe the delay time directly, FPGA device cyclone IV LCMXO2-1200HC-4TG144CR1, and make the simple path diagram on the demo board

led\db\led.asm.qmsg
led\db\led.asm.rdb
led\db\led.asm_labs.ddb
led\db\led.cbx.xml
led\db\led.cmp.bpm
led\db\led.cmp.cdb
led\db\led.cmp.hdb
led\db\led.cmp.idb
led\db\led.cmp.kpt
led\db\led.cmp.logdb
led\db\led.cmp.rdb
led\db\led.cmp_merge.kpt
led\db\led.cycloneive_io_sim_cache.31um_ff_1200mv_0c_fast.hsd
led\db\led.cycloneive_io_sim_cache.31um_ss_1200mv_0c_slow.hsd
led\db\led.cycloneive_io_sim_cache.31um_ss_1200mv_85c_slow.hsd
led\db\led.db_info
led\db\led.eda.qmsg
led\db\led.fit.qmsg
led\db\led.hier_info
led\db\led.hif
led\db\led.ipinfo
led\db\led.lpc.html
led\db\led.lpc.rdb
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led\db\led.map.ammdb
led\db\led.map.bpm
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led\db\led.map.kpt
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led\db\led.map.rdb
led\db\led.map_bb.cdb
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led\db\led.pre_map.hdb
led\db\led.pti_db_list.ddb
led\db\led.root_partition.map.reg_db.cdb
led\db\led.routing.rdb
led\db\led.rtlv.hdb
led\db\led.rtlv_sg.cdb
led\db\led.rtlv_sg_swap.cdb
led\db\led.sgdiff.cdb
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led\db\led.sld_design_entry.sci
led\db\led.sld_design_entry_dsc.sci
led\db\led.smart_action.txt
led\db\led.sta.qmsg
led\db\led.sta.rdb
led\db\led.sta_cmp.8_slow_1200mv_85c.tdb
led\db\led.syn_hier_info
led\db\led.tiscmp.fastest_slow_1200mv_0c.ddb
led\db\led.tiscmp.fastest_slow_1200mv_85c.ddb
led\db\led.tiscmp.fast_1200mv_0c.ddb
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led\db\led.tiscmp.slow_1200mv_85c.ddb
led\db\led.tis_db_list.ddb
led\db\led.tmw_info
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led\db\led_qsim.cbx.xml
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led\db\led_qsim.eds_overflow
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led\db\led_qsim.fnsim.qmsg
led\db\led_qsim.hier_info
led\db\led_qsim.lpc.html
led\db\led_qsim.lpc.rdb
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led\db\led_qsim.sim.hdb
led\db\led_qsim.sim.qmsg
led\db\led_qsim.sim.rdb
led\db\led_qsim.sim.vwf
led\db\led_qsim.simfam
led\db\led_qsim.sld_design_entry_dsc.sci
led\db\led_qsim.smart_action.txt
led\db\logic_util_heursitic.dat
led\db\prev_cmp_led.qmsg
led\incremental_db\compiled_partitions\led.db_info
led\incremental_db\compiled_partitions\led.root_partition.cmp.ammdb
led\incremental_db\compiled_partitions\led.root_partition.cmp.cdb
led\incremental_db\compiled_partitions\led.root_partition.cmp.dfp
led\incremental_db\compiled_partitions\led.root_partition.cmp.hdb
led\incremental_db\compiled_partitions\led.root_partition.cmp.kpt
led\incremental_db\compiled_partitions\led.root_partition.cmp.logdb
led\incremental_db\compiled_partitions\led.root_partition.cmp.rcfdb
led\incremental_db\compiled_partitions\led.root_partition.map.cdb
led\incremental_db\compiled_partitions\led.root_partition.map.dpi
led\incremental_db\compiled_partitions\led.root_partition.map.hbdb.cdb
led\incremental_db\compiled_partitions\led.root_partition.map.hbdb.hb_info
led\incremental_db\compiled_partitions\led.root_partition.map.hbdb.hdb
led\incremental_db\compiled_partitions\led.root_partition.map.hbdb.sig
led\incremental_db\compiled_partitions\led.root_partition.map.hdb
led\incremental_db\compiled_partitions\led.root_partition.map.kpt
led\incremental_db\compiled_partitions\led_qsim.db_info
led\incremental_db\README
led\led.bsf
led\led.qpf
led\led.qsf
led\led.qws

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