使用89C51系列单片机实现6位数显频率计数器（含仿真文件）
......................................................\6bit_cymometer
......................................................\6bit_cymometer.LST
......................................................\6bit_cymometer.M51
......................................................\6bit_cymometer.OBJ
......................................................\6bit_cymometer.Opt
......................................................\6bit_cymometer.Uv2
......................................................\6bit_cymometer.c
......................................................\6bit_cymometer.hex
......................................................\6bit_cymometer.lnp
......................................................\6bit_cymometer.plg
......................................................\sim
......................................................\...\6bit_cymometer.DSN
......................................................\...\6bit_cymometer.PWI
......................................................\...\Last Loaded 6bit_cymometer.DBK