Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Implements everything from talking directly to the chip, through a DTMF_OUT buffer that is handled by interrupts in a multitasking system. (This functionality depends on some basic buffer management functions that are not included in this package See 'Getting Started')
The dialer implements an algorithm to speed up the DTMF dialing by reducing the silent time between dis-similar digits.
This may be useful to Picsters too, since the basic logic is all you need.
10x guys.....
But the problem is not in the code...
I'm able to hear the DTMF tones though the telephone line, but the problem is that HT9200 is not really dialing them.
I think the problem is in the interface circuit between the chip and the line, and Holtek does not provide any help regarding this subject.....
any idea ???