On Mon, 4 Jan 1999, Wing Kent Kwan wrote:

> how can I generation the DTMF with PWM???????
>

Which microcontroller are you targetting???????

Are you using the hardware pwm available in many of the midrange pics or
are you wanting to bit bang something? Did you see the posts in the last
two weeks describing different approaches? No one will bother re-answering
the same question asked just a few days ago. Why not give us a little more
info?

Scott