Steering Time for 8888 DTMF Receiver

Thread Starter


Joined Dec 29, 2006

I am developing Caller Line Indication (CLI) using 8888 DTMF Receiver and intefacing with 80C51 along with serial port.

Now it is working with outgoing tones digits.

But with incoming calls detection the digits are jumping and twice it displays.
in the hyperterminal

The problem is in the steering part where the RC time constant.

can u suggest me the RC time constant.

Please Help me.