Description: Divider, the PWM timing, change the output frequency, thus the buzzer sounded different voices.
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File list (Check if you may need any files):
clkdivverilog\.sopc_builder\install.ptf
.............\clkdiv.asm.rpt
.............\clkdiv.cdf
.............\clkdiv.done
.............\clkdiv.dpf
.............\clkdiv.fit.rpt
.............\clkdiv.fit.smsg
.............\clkdiv.fit.summary
.............\clkdiv.flow.rpt
.............\clkdiv.map.rpt
.............\clkdiv.map.summary
.............\clkdiv.pin
.............\clkdiv.pof
.............\clkdiv.qpf
.............\clkdiv.qsf
.............\clkdiv.qws
.............\clkdiv.tan.rpt
.............\clkdiv.tan.summary
.............\clkdiv.v
.............\clkdiv.v.bak
.............\clkdiv_assignment_defaults.qdf
.............\db\clkdiv.asm.qmsg
.............\..\clkdiv.asm_labs.ddb
.............\..\clkdiv.cbx.xml
.............\..\clkdiv.cmp.cdb
.............\..\clkdiv.cmp.hdb
.............\..\clkdiv.cmp.kpt
.............\..\clkdiv.cmp.logdb
.............\..\clkdiv.cmp.rdb
.............\..\clkdiv.cmp.tdb
.............\..\clkdiv.cmp0.ddb
.............\..\clkdiv.db_info
.............\..\clkdiv.eco.cdb
.............\..\clkdiv.fit.qmsg
.............\..\clkdiv.hier_info
.............\..\clkdiv.hif
.............\..\clkdiv.map.cdb
.............\..\clkdiv.map.hdb
.............\..\clkdiv.map.logdb
.............\..\clkdiv.map.qmsg
.............\..\clkdiv.pre_map.cdb
.............\..\clkdiv.pre_map.hdb
.............\..\clkdiv.rtlv.hdb
.............\..\clkdiv.rtlv_sg.cdb
.............\..\clkdiv.rtlv_sg_swap.cdb
.............\..\clkdiv.sgdiff.cdb
.............\..\clkdiv.sgdiff.hdb
.............\..\clkdiv.sld_design_entry.sci
.............\..\clkdiv.sld_design_entry_dsc.sci
.............\..\clkdiv.syn_hier_info
.............\..\clkdiv.tan.qmsg
.............\..\clkdiv.tis_db_list.ddb
.............\..\clkdiv.tmw_info
.............\..\prev_cmp_clkdiv.asm.qmsg
.............\..\prev_cmp_clkdiv.fit.qmsg
.............\..\prev_cmp_clkdiv.map.qmsg
.............\..\prev_cmp_clkdiv.qmsg
.............\..\prev_cmp_clkdiv.tan.qmsg
.............\incremental_db\compiled_partitions\clkdiv.root_partition.map.kpt
.............\..............\README
.............\sopc_builder_debug_log.txt
.............\incremental_db\compiled_partitions
.............\.sopc_builder
.............\db
.............\incremental_db
clkdivverilog