Help me write C code to generate DTMF tones

[lpalma]

hi every one

i have an MT8889C and i need to transmit DTMF tones.
i tried many thinks but i can´t generate any tones

There is anyone who has C routine to controle this transceiver...

Thanks for the help.

 

[budhy]

Re: DTMF Generator

What kind of processor do you use?
I need your circuit diagram to help you write C code to generate DTMF tones.

 

[sabeti_1990]

Re: DTMF Generator

also check out your out put of 8889 to line
the sample of zarlink is very good for U
attention this chip has 4 register that U should work correctly with them

sample of C code is on E-project on internet