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Discussion Groups | Analog Devices DSPs | 1 khz sinewave generation
Technical discussions related to Analog Devices DSPs (including Blackfin, TigerSHARC, SHARC and ADSP-21xx DSPs).
1 khz sinewave generation - smi_ms2003 - Jan 10 7:19:00 2006
hi everybody,
i have interfaced adsp 21060(sharc processor)to codec ad1836.i am new
to codec.i have configured codec internal register through SPI, and
all adsp serial port stuff.if i want to generator exactly 1kz frequecy
what are the data input i should send it to codec.How to calculate
those data value.which formula i shoud use.please let me know this and
also FFT algorithm.give me some ideas,or code example.48khz sampling
frequency is selected for codec.
thanks,
smitha
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Re: 1 khz sinewave generation - Mike Rosing - Jan 10 10:23:00 2006
On Tue, 10 Jan 2006, smi_ms2003 wrote:
> hi everybody,
> i have interfaced adsp 21060(sharc processor)to codec ad1836.i am new
> to codec.i have configured codec internal register through SPI, and
> all adsp serial port stuff.if i want to generator exactly 1kz frequecy
> what are the data input i should send it to codec.How to calculate
> those data value.which formula i shoud use.please let me know this and
> also FFT algorithm.give me some ideas,or code example.48khz sampling
> frequency is selected for codec. http://www.analog.com/processors/processors/sharc/technicalLibrary/codeExamples/applicationsHan dbook.html
has a set of zipped up files with everything you need. Use the sin.asm
to compute your 1 khz shape at the correct sample rate you use. FFT
algorithms of all kinds are there too.
Patience, persistence, truth,
Dr. mike
(You need to be a member of adsp -- send a blank email to adsp-subscribe@yahoogroups.com )
> hi everybody,
> i have interfaced adsp 21060(sharc processor)to codec ad1836.i am new
> to codec.i have configured codec internal register through SPI, and
> all adsp serial port stuff.if i want to generator exactly 1kz frequecy
> what are the data input i should send it to codec.How to calculate
> those data value.which formula i shoud use.please let me know this and
> also FFT algorithm.give me some ideas,or code example.48khz sampling
> frequency is selected for codec. http://www.analog.com/processors/processors/sharc/technicalLibrary/codeExamples/applicationsHan dbook.html
has a set of zipped up files with everything you need. Use the sin.asm
to compute your 1 khz shape at the correct sample rate you use. FFT
algorithms of all kinds are there too.
Patience, persistence, truth,
Dr. mike
(You need to be a member of adsp -- send a blank email to adsp-subscribe@yahoogroups.com )