in this part of source code i added the code for interface the rs-232 with pc and connected it to the fpga spartan-3e in order to transmit data and receive it

Seria_M\Minimal_UART_CORE_summary.html
.......\pa.fromHdl.tcl
.......\serial_main.bgn
.......\serial_main.bit
.......\serial_main.bld
.......\serial_main.cmd_log
.......\serial_main.drc
.......\serial_main.lso
.......\serial_main.ncd
.......\serial_main.ngc
.......\serial_main.ngd
.......\serial_main.ngr
.......\serial_main.pad
.......\serial_main.par
.......\serial_main.pcf
.......\serial_main.prj
.......\serial_main.ptwx
.......\serial_main.stx
.......\serial_main.syr
.......\serial_main.twr
.......\serial_main.twx
.......\serial_main.ucf
.......\serial_main.unroutes
.......\serial_main.ut
.......\serial_main.vhd
.......\serial_main.xpi
.......\serial_main.xst
.......\serial_main_bitgen.xwbt
.......\serial_main_envsettings.html
.......\serial_main_guide.ncd
.......\serial_main_map.map
.......\serial_main_map.mrp
.......\serial_main_map.ncd
.......\serial_main_map.ngm
.......\serial_main_map.xrpt
.......\serial_main_ngdbuild.xrpt
.......\serial_main_pad.csv
.......\serial_main_pad.txt
.......\serial_main_par.xrpt
.......\serial_main_summary.html
.......\serial_main_summary.xml
.......\serial_main_usage.xml
.......\serial_main_vhdl.prj
.......\serial_main_xst.xrpt
.......\Seria_M.gise
.......\Seria_M.xise
.......\usage_statistics_webtalk.html
.......\webtalk.log
.......\webtalk_pn.xml
.......\ipcore_dir
.......\.seconfig\Minimal_UART_CORE.xreport
.......\.........\serial_main.xreport
.......\.........\Seria_M.projectmgr
.......\iseconfig
.......\planAhead_run_1\planAhead.jou
.......\...............\planAhead.log
.......\...............\planAhead_run.log
.......\...............\Seria_M.ppr
.......\...............\........data\constrs_1\designprops.xml
.......\...............\............\.........\fileset.xml
.......\...............\............\.........\usercols.xml
.......\...............\............\constrs_1
.......\...............\............\sources_1\chipscope.xml
.......\...............\............\.........\fileset.xml
.......\...............\............\.........\ports.xml
.......\...............\............\sources_1
.......\...............\............\wt\webtalk_pa.xml
.......\...............\............\wt
.......\...............\Seria_M.data
.......\planAhead_run_1
.......\xlnx_auto_0_xdb\cst.xbcd
.......\xlnx_auto_0_xdb
.......\.st\dump.xst\serial_main.prj\ngx\notopt
.......\...\........\...............\...\opt
.......\...\........\...............\ngx
.......\...\........\serial_main.prj
.......\...\dump.xst
.......\...\file graph
.......\...\projnav.tmp
.......\...\work\hdllib.ref
.......\...\....\hdpdeps.ref
.......\...\....\sub00\vhpl00.vho
.......\...\....\.....\vhpl01.vho
.......\...\....\.....\vhpl02.vho
.......\...\....\.....\vhpl03.vho
.......\...\....\.....\vhpl04.vho
.......\...\....\.....\vhpl05.vho
.......\...\....\sub00
.......\...\work
.......\xst
.......\_ngo\netlist.lst
.......\_ngo
.......\.xmsgs\bitgen.xmsgs
.......\......\map.xmsgs
.......\......\ngdbuild.xmsgs
.......\......\par.xmsgs
.......\......\pn_parser.xmsgs
.......\......\trce.xmsgs
.......\......\xst.xmsgs
.......\_xmsgs

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