hi i need to compute a floating pt. radix 4 1024 pt fft on a floating point DSP (TMSC6701). Does anybody has any efficient code or links to help me with. i tried using the DSP library fft function provided by TI but found the output to be incorrect. Can anybody help me with this problem?? Regards Vivek
floating pt. 1024 pt. radix4 FFT
Started by ●June 10, 2004
Reply by ●June 10, 20042004-06-10
vivek@ontimetek.com (vivek) wrote:>hi >i need to compute a floating pt. radix 4 1024 pt fft on a floating >point DSP (TMSC6701). Does anybody has any efficient code or links to >help me with. > >i tried using the DSP library fft function provided by TI but found >the output to be incorrect. > >Can anybody help me with this problem??I do not have such code, and can only recommend getting information about the radix 4, and understand what it is suppose to be doing, so that you can then debug the TI code stage by stage. Regards, Robert www.gldsp.com ( modify address for return email ) www.numbersusa.com www.americanpatrol.com
Reply by ●June 12, 20042004-06-12
vivek@ontimetek.com (vivek) wrote:> i tried using the DSP library fft function provided by TI but found > the output to be incorrect.I'm afraid I can't help you with your actual problem, but I find it highly unlikely that TI would provide such an important function and not test it properly. I find it more likely that you're not expecting the correct output for that function, ie. that the error is on your part. Are you absolutely certain that the problem is in the TI FFT function? --smb
Reply by ●June 12, 20042004-06-12
stephan.bernsee@web.de (Stephan M. Bernsee) wrote:>vivek@ontimetek.com (vivek) wrote: >> i tried using the DSP library fft function provided by TI but found >> the output to be incorrect. > >I'm afraid I can't help you with your actual problem, but I find it >highly unlikely that TI would provide such an important function and >not test it properly. I find it more likely that you're not expectingI have found errors in vendor-supplied routines. Robert www.gldsp.com ( modify address for return email ) www.numbersusa.com www.americanpatrol.com