Can you try to do highpass? The effect is easier to observe than that of
bandpass. I want to see if the problem lies in code or coeffiecients.

On 2/14/07, vishal srivastava <v...@gmail.com> wrote:
>
> hi
> thanks for replying ,i checked it on scope but its action is lowpass .i
> also write some code for it but it also work as a lowpass filter.
> give me an idea so that i can solve my problem.
> thanks
> regards
> vishal
>