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Sampling Rate for c5402 DSK

Started by Junhong in TMS320c54x23 years ago 1 reply

Hi, I encounter a problem with the changing the sampling rate of the onboard codec in C5402 DSK board. I try to set the...

Hi, I encounter a problem with the changing the sampling rate of the onboard codec in C5402 DSK board. I try to set the sampling frequency at 16Khz... but when I test it and found out that it cut off at 4Khz instead of 8Khz.... I try to change to other sampling ra


Sampling frequency

Started by Anonymous in TMS320c54x26 years ago

Dear Friends Could you tell me what is the maximum sampling frequency fro the c541 DSP? khmaies

Dear Friends Could you tell me what is the maximum sampling frequency fro the c541 DSP? khmaies


Sampling Frequency on AD/DC AC01

Started by Anonymous in TMS320c54x25 years ago

I am implementing a digital FIR filter but I want to know how to change the sampling frequency of the ACO1. Can somebody help me...

I am implementing a digital FIR filter but I want to know how to change the sampling frequency of the ACO1. Can somebody help me with this. I have read that you can change it on the init file of the AC01 but I do not know how. Thanks in advance. Any info would be appreciated.


microphone sampling w/ 5402 DSK & AD50

Started by Anonymous in TMS320c54x25 years ago 2 replies

I'm performing speech recognition with the 5402 DSK equipped with AD50 codecs. I need to know how to continuously sample from the ...

I'm performing speech recognition with the 5402 DSK equipped with AD50 codecs. I need to know how to continuously sample from the microphone port on the DSK. Could someone please provide sample code or help me out with the C functions necessary to perform this continuous sampling usi


Sampling & Quantization

Started by ygb1492 in TMS320c54x23 years ago

Does anyone have an assembly or c program that can be used to show the effects of sampling and/or quantization for an input signal ...

Does anyone have an assembly or c program that can be used to show the effects of sampling and/or quantization for an input signal produced by a signal generagtor. Gerardo


Rerouting McBSP on the 5402

Started by garymfriedman in TMS320c54x23 years ago

Hi, I have a question about the McBSPs on the 5402. My problem is this. I have been given the 5402 to use for image ...

Hi, I have a question about the McBSPs on the 5402. My problem is this. I have been given the 5402 to use for image processing. I know the sampling rate of 16kHz is too slow however i don't have the liberty of buying a new board with a better sampling rate.


Minimum Sampling Frequency

Started by bilalaminch in TMS320c54x21 years ago

Hi Pals; I am looking for the most accurate PRATICAL method of calculating minimum sampling rate (fs(min)). If any guides me...

Hi Pals; I am looking for the most accurate PRATICAL method of calculating minimum sampling rate (fs(min)). If any guides me regarding this, it would be a great help. Regards Bilal


fsk detection

Started by hemant ramdasi in TMS320c54x24 years ago 1 reply

hi all, It is slightly different. I want to detect the 500 and 700 hz fsk signals at 600 baud. I use 8 khz sampling rate...

hi all, It is slightly different. I want to detect the 500 and 700 hz fsk signals at 600 baud. I use 8 khz sampling rate and do all the things as a buffered approach. This means I use two 8 k buffers and I process recorded buffer in the mean time recording in


DSPLIB and ST-BUS interrupts problem

Started by m_mo...@yahoo.com in TMS320c54x15 years ago 2 replies

Dear all I have a problem with DSPlib for tms320VC5416 chip. I use POWER function from dsplib library to calculate the sum of sqrs of an input...

Dear all I have a problem with DSPlib for tms320VC5416 chip. I use POWER function from dsplib library to calculate the sum of sqrs of an input array. It was ok until I add ST-BUS support to the project. I get input data from ulaw codecs with sampling rate of 8000 sample per second. Because ST-BUS consists of 32 channels, it interrupts my chip 256000 times in a second. But adding ST-BU...


ADC clock rate

Started by mdl8736 in TMS320c54x24 years ago 1 reply

Hi All, I am trying to set up an ADC to interface with my DSP and I was wondering-- what is keeping me from "underclocking" the...

Hi All, I am trying to set up an ADC to interface with my DSP and I was wondering-- what is keeping me from "underclocking" the ADC? It's specified sampling rate is 65 MSPS, but I clock it at 50 MSPS, so I can clock it with the DSP unit, rather than setting up a cloc


TLV320AIC12 Data Format

Started by gramsmi2002 in TMS320c54x23 years ago 1 reply

Hi all, I'm developing with TMS320C5416 DSP and TLV320AIC12 codec. 16 bits samples at 8000 Hz sampling frecuency, are...

Hi all, I'm developing with TMS320C5416 DSP and TLV320AIC12 codec. 16 bits samples at 8000 Hz sampling frecuency, are received into a buffer. When this buffer is full,I code it through G.729 ITU codec and then I decode it. But, when I write the decoded buff


Help needed in selecting a development platform...

Started by pet_dsp in TMS320c54x21 years ago

Hi e'bdy, I need some help in selecting a new DSK. We are looking to buy a new DSK/EVM board to support our development work....

Hi e'bdy, I need some help in selecting a new DSK. We are looking to buy a new DSK/EVM board to support our development work. We look for the following in the new DSK: 1. We would like the DSK to be based on 54x or 55x DSP. 2. It should support common sampling rates l


Regarding ADC in DM270 Board

Started by Ramamohana Reddy in TMS320c54x21 years ago

Hi   I am using TIs DM 270 EVM for an audio application.i.e for audio recording.   and I am facing some problem while...

Hi   I am using TIs DM 270 EVM for an audio application.i.e for audio recording.   and I am facing some problem while sampling audio .unknown value is sampled if no input is there and it is coming as mechine like sound (small amount in the left head phone).   Does any one know how to configure the ADC and McBSP


spectrum analyzer

Started by Farayi Zinatsa in TMS320c54x21 years ago 1 reply

hie i'm developing a spectrum analyser on a tms320c5x using the fft algorithim.now i'm trying to analyse a frequecy range of around 4khz ...

hie i'm developing a spectrum analyser on a tms320c5x using the fft algorithim.now i'm trying to analyse a frequecy range of around 4khz thats about 8khz of sampling rate for speech. i want to get data from say a microphone (the chip has an RCA jack for "mikes")into memory space for processing by the fft codewhich i made (digital stage) and t


dsplib rifft: can't get it working

Started by lolo_mk1 in TMS320c54x21 years ago

Hi, I've read past posts on this topic but I can't make the dsplib inverse fft work properly. I put it in a 360Hz sine wave @ 8kHz...

Hi, I've read past posts on this topic but I can't make the dsplib inverse fft work properly. I put it in a 360Hz sine wave @ 8kHz sampling rate. I get the desired spike in the magnitude spectrum via cbrev(*in, *out, FFTORDER/2); rfft1024(*out, 1); //my little magnituding finding function goes here so I'm sure thats


Re: [Fwd: Re: code working on simulator but not on device?]

Started by Jeff Brower in TMS320c54x20 years ago

Megha- > I had one question. In functions like butter (for filters) we declare a variable Wn > (the cut off frequency). ex: [B,A] =...

Megha- > I had one question. In functions like butter (for filters) we declare a variable Wn > (the cut off frequency). ex: [B,A] = BUTTER(N,Wn). In this Wn value is between 0 > and 1, where 1 means half of sampling rate. What I am not understanding is where is > it getting sample rate value from. I saw some codes and in that the sample rate > value is not declared before using the command.


Re: [Fwd: Re: code working on simulator but not on device?]

Started by megha daga in TMS320c54x20 years ago

Dear Jeff Thanks. Thight might help. i will read and follow that. I had one question. In functions like butter (for filters) we declare a...

Dear Jeff Thanks. Thight might help. i will read and follow that. I had one question. In functions like butter (for filters) we declare a variable Wn (the cut off frequency). ex: [B,A] = BUTTER(N,Wn). In this Wn value is between 0 and 1, where 1 means half of sampling rate. What I am not understanding is where is it getting sample rate value from. I saw some codes and in that the sample rate...


strange CPU error

Started by JimJ...@msn.com in TMS320c54x18 years ago

Hello to everyone, I have created a simple project that samples a sinus wave and then it calculates the FFT of the sampling data. I am using a...

Hello to everyone, I have created a simple project that samples a sinus wave and then it calculates the FFT of the sampling data. I am using a C54x card but what I describe happens in the simulation (I have not tested it in real mode with the card yet.) The program was working but I had forgotten to bit reverse the samples for the FFT. Whether I use the cbrev function (which by the way does...


AIC10 with C5402

Started by Jean Viljoen in TMS320c54x24 years ago

Hi I am using the AIC10 EVM piggy pack on a C5402 DSK for an audio project. I get a tone on the speaker (DAC output) at the...

Hi I am using the AIC10 EVM piggy pack on a C5402 DSK for an audio project. I get a tone on the speaker (DAC output) at the sampling frequency, i.e. if I sample at 8 kHz, I hear an annoying 8 kHz tone on the speakers, or if I sample at 5 kHz, I get a 5 kHz tone. Can anyone hel


configuring codec so that fs=500Hz

Started by Marlo Flores in TMS320c54x24 years ago 3 replies

Hi friends, I program the c5402 in C language. I see in the codec example that the sampling rates i can configure the codec...

Hi friends, I program the c5402 in C language. I see in the codec example that the sampling rates i can configure the codec are only 2kHZ-16kHz using the available function. How can I make the codec to sample at 500 Hz? Is there some other C-callable function which I