I'm having a problem with using the convol function of the dsplib.h
because every time I build my project in CCS it would note that the
symbol convol is undefined. why is so? Is there something wrong on
how I called the convol function? Are my input parameters right? Are
there any more problems that you can find in code?
Here is a portion of my codes where I called the convol function:
input-Int16
output-Int16
H-DATA
convol (&input, H, &output, 19, 19);
*Because I wish to filter (Low Pass Filter) my input signal using
the convol function H holds the filter coefficients.
*Here are my filter coefficients for a low pass filter with a cut
off frequency of 2kHz:
DATA H[19]={-0.033637, -0.023387, 0.026728, 0.050455, 0.000000,
0.075683, -0.062366, 0.093549, 0.302731, 0.400000, 0.302731,
0.093549, -0.062366, 0.075683, 0.000000, 0.050455, 0.026728, -
0.023387, -0.033637};
Best regards,
Dexter
m...@yahoo.com
Code Composer: symbol undefined "convol" (Dsplib.h was already imported)
Started by ●August 26, 2006
Reply by ●August 27, 20062006-08-27
Dexter J-
> I'm having a problem with using the convol function of the dsplib.h
> because every time I build my project in CCS it would note that the
> symbol convol is undefined. why is so? Is there something wrong on
> how I called the convol function? Are my input parameters right? Are
> there any more problems that you can find in code?
Have you listed dsplib.lib in your linker command (.cmd) file?
-Jeff
> Here is a portion of my codes where I called the convol function:
>
> input-Int16
> output-Int16
> H-DATA
>
> convol (&input, H, &output, 19, 19);
>
> *Because I wish to filter (Low Pass Filter) my input signal using
> the convol function H holds the filter coefficients.
> *Here are my filter coefficients for a low pass filter with a cut
> off frequency of 2kHz:
>
> DATA H[19]={-0.033637, -0.023387, 0.026728, 0.050455, 0.000000,
> 0.075683, -0.062366, 0.093549, 0.302731, 0.400000, 0.302731,
> 0.093549, -0.062366, 0.075683, 0.000000, 0.050455, 0.026728, -
> 0.023387, -0.033637};
>
> Best regards,
>
> Dexter
> m...@yahoo.com
>
> I'm having a problem with using the convol function of the dsplib.h
> because every time I build my project in CCS it would note that the
> symbol convol is undefined. why is so? Is there something wrong on
> how I called the convol function? Are my input parameters right? Are
> there any more problems that you can find in code?
Have you listed dsplib.lib in your linker command (.cmd) file?
-Jeff
> Here is a portion of my codes where I called the convol function:
>
> input-Int16
> output-Int16
> H-DATA
>
> convol (&input, H, &output, 19, 19);
>
> *Because I wish to filter (Low Pass Filter) my input signal using
> the convol function H holds the filter coefficients.
> *Here are my filter coefficients for a low pass filter with a cut
> off frequency of 2kHz:
>
> DATA H[19]={-0.033637, -0.023387, 0.026728, 0.050455, 0.000000,
> 0.075683, -0.062366, 0.093549, 0.302731, 0.400000, 0.302731,
> 0.093549, -0.062366, 0.075683, 0.000000, 0.050455, 0.026728, -
> 0.023387, -0.033637};
>
> Best regards,
>
> Dexter
> m...@yahoo.com
>