dtmf interfacing to 8051

Gate 1
......\delay_routines.h
......\gate1
......\gate1.hex
......\gate1.lnp
......\gate1.M51
......\gate1.plg
......\gate11@
......\gate11@.hex
......\gate11@.lnp
......\gate11@.M51
......\gate11@.plg
......\gate1@
......\gate1@.hex
......\gate1@.lnp
......\gate1@.M51
......\gate1@.plg
......\gate2
......\gate2.lnp
......\gate2.M51
......\gate2.plg
......\gate_pbx.c
......\gate_pbx.h
......\gate_pbx.LST
......\gate_pbx.OBJ
......\header files
......\............\lcd.h
......\............\rtc_functions.h
......\............\rtc_read.h
......\............\rtc_write.h
......\lcd4bit.c
......\lcd4bit.h
......\lcd4bit.LST
......\lcd4bit.OBJ
......\pbx_final
......\pbx_final.lnp
......\pbx_final.M51
......\pbx_final.Opt
......\pbx_final.plg
......\pbx_final.Uv2
......\pbx_final_Opt.Bak
......\pbx_final_Uv2.Bak
......\rtc.c
......\rtc.h
......\rtc.LST
......\rtc.OBJ
......\STARTUP.A51
......\STARTUP.LST
......\STARTUP.OBJ

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