Based on easy-51 microcontroller frequency meter, frequency meter that can generate 1-50hz frequency square wave, and can adjust the frequency of the square wave cycle, the duty cycle

频率计\pro
......\pro.hex
......\pro.lnp
......\pro.M51
......\pro.Opt
......\pro.plg
......\pro.Uv2
......\pro_Opt.Bak
......\pro_Uv2.Bak
......\实训.c
......\实训.LST
......\实训.OBJ

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