The single-chip digital filter used to filter into a sine wave 50Hz square wave, 1000Hz sampling. Proteus simulation document attached.

58RD 数字滤波
.............\58rd filter
.............\58rd filter.c
.............\58rd filter.hex
.............\58rd filter.lnp
.............\58rd filter.LST
.............\58rd filter.M51
.............\58rd filter.OBJ
.............\58rd filter.Opt
.............\58rd filter.plg
.............\58rd filter.Uv2
.............\58rd filter_Opt.Bak
.............\58rd filter_Uv2.Bak
.............\Backup Of filter.DBK
.............\filter.DSN
.............\filter.PWI
.............\Last Loaded filter.DBK
.............\STARTUP.A51
.............\STARTUP.LST
.............\STARTUP.OBJ

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