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hello,
I'm designing an fir filter in adsp 2181 ezkit lite where i'm generating the coefficients according to user specifications. when i try 2 use the coeff generated by my program, the output is not proper. on the hand, if i use coeff from any of the ready made filter packages, it works fine. The way in which i've generated my coeff is correct. i seem 2 have a problem in giving the coeff in the correct format. i've tried giving it in 1.15 format but the result is zilch. It would be of help if someone can give an idea of the format in which the coefficients for filters are given in adsp 2181. hope 2 hear from u soon on this. bye, Suganya |
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Clarification on coeff format
Started by ●November 28, 2001
Reply by ●November 28, 20012001-11-28
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----- Original Message ----- From: "suganya" <> To: <> Sent: Wednesday, November 28, 2001 11:33 AM Subject: [adsp] Clarification on coeff format > hello, > I'm designing an fir filter in adsp 2181 ezkit > lite where i'm generating the coefficients according > to user specifications. when i try 2 use the coeff > generated by my program, the output is not proper. on > the hand, if i use coeff from any of the ready made > filter packages, it works fine. > > The way in which i've generated my coeff is > correct. i seem 2 have a problem in giving the coeff > in the correct format. i've tried giving it in 1.15 > format but the result is zilch. It would be of help > if someone can give an idea of the format in which the > coefficients for filters are given in adsp 2181. > > hope 2 hear from u soon on this. Have you tried using the todat.com program by Dwight Elvey? It converts from fp to 1.15 format. It's in the EZKFORUM files on the ADI web site, amongst the EZKIT stuff. Leon Heller, G1HSM http://www.geocities.com/leon_heller Low-cost Altera Flex design kit: http://www.leonheller.com |
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Reply by ●November 29, 20012001-11-29
