this is a sample program to send and recieve data during rs232 for microcontroller 89s51 and all you need to adjust xtal at the begining of your program

serial function with jumper test baud\baud-ckeck-from-jumper.c
.....................................\baud-ckeck-from-jumper.LST
.....................................\baud-ckeck-from-jumper.OBJ
.....................................\create
.....................................\create.c
.....................................\create.h
.....................................\create.hex
.....................................\create.lnp
.....................................\create.LST
.....................................\create.M51
.....................................\create.OBJ
.....................................\create.opt.bak
.....................................\create.plg
.....................................\create.Uv2.bak
.....................................\create.uvopt
.....................................\create.uvproj
.....................................\create_Opt.Bak
.....................................\create_Uv2.Bak
.....................................\information about this program.txt
.....................................\mahmoud.h
.....................................\send and recieve to rs232 and show in p1.c
.....................................\send and recieve to rs232 and show in p1.lst
.....................................\send and recieve to rs232 and show in p1.obj
serial function with jumper test baud

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