the source code is on the MCS-51 wireless receiver, S52 control with 89 MT8870B for DTMF decoder. Quite the classic procedure, I debug a few weeks later, to achieve very good results. The error rate is very small. I think that good things should be shared, so I upload this code, and the analysis of common progress.

Packet : 117143170radio_re.rar filelist
RADIO_RE\lcd.LST
RADIO_RE\main.LST
RADIO_RE\main.OBJ
RADIO_RE\COM.LST
RADIO_RE\COM.OBJ
RADIO_RE\RADIO.plg
RADIO_RE\lcd.OBJ
RADIO_RE\main.h
RADIO_RE\RADIO_Opt.Bak
RADIO_RE\RADIO.Opt
RADIO_RE\RADIO_Uv2.Bak
RADIO_RE\main.c
RADIO_RE\RADIO
RADIO_RE\lcd.h
RADIO_RE\lcd.c
RADIO_RE\RADIO.Uv2
RADIO_RE\shujuchuli.c
RADIO_RE\shujuchuli.LST
RADIO_RE\RADIO.lnp
RADIO_RE\RADIO.M51
RADIO_RE\RADIO.hex
RADIO_RE\COM.C
RADIO_RE

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