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    FFT using microcontroller

    I want to calculate FFT of low frequency analog signal for my project. Can you please suggest a suitable microcontroller for the same. I found out about PIC32mx family. Would that be recommendable?If yes then which of PIC32mx seires controller would you suggest?

    •   Alt21st February 2011, 08:07

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    Re: FFT using microcontroller

    PIC32 should work fine.

    You might also consider dsPIC because their hardware are more DSP oriented.



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    Re: FFT using microcontroller

    I already used the MSP430F149 to perform a measurement on 128 points.
    ( 12bit AD / 2K RAM / core 16bits )

    Worked fine.

    +++


    1 members found this post helpful.

    •   Alt21st February 2011, 12:38

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    Re: FFT using microcontroller

    I found MSP430 useful but its not easily available. Moreover its a mixed signal processor which requires separate programmer to dump the code. I want to use a controller for which universal programmer would do. Can you please give some suggestions regarding this?



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    Re: FFT using microcontroller

    I have used dsPIC processors for this purpose making use of the DSP library
    dsPIC DSC DSP Algorithm Library

    if you are looking for a low cost development kit the Microchip microstick is very good
    Microstick for dsPIC33F and PIC24H Development Board

    it comes with a header so you can attach it to a breadboard for your own circuits


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    •   Alt21st February 2011, 17:31

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    Re: FFT using microcontroller

    have a look here
    ELM - Audio Spectrum Monitor



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    Re: FFT using microcontroller

    Quote Originally Posted by horace1 View Post
    I have used dsPIC processors for this purpose making use of the DSP library
    dsPIC DSC DSP Algorithm Library

    if you are looking for a low cost development kit the Microchip microstick is very good
    Microstick for dsPIC33F and PIC24H Development Board

    it comes with a header so you can attach it to a breadboard for your own circuits
    dear horace1 can you tell that any extra software will be required for DM330013 (Microstick development board) ?
    I want to buy it. I am very thankful to you.
    Its a good solution for learning dsPic i think.
    I want to start learning dsPIC
    Thanks once again.



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    Re: FFT using microcontroller

    I want to ask is that I only need to buy the kit, nothing else.
    everything is free available on internet. Am I right ?



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    Re: FFT using microcontroller

    Quote Originally Posted by shahbaz.ele View Post
    I want to ask is that I only need to buy the kit, nothing else.
    everything is free available on internet. Am I right ?
    Hi there,

    You will also need a programmer. I think you can use the pic kit 2, or spend a little more and get the ICD2 which have many debugging features and very fast programming. Or you can build your own :)



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    Re: FFT using microcontroller

    PICKit 2 supports only some of the dsPIC30/33 and PIC24F/H. Better go for PICKit 3 which supports all current chips other than OTP kind.



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    Re: FFT using microcontroller

    Quote Originally Posted by shahbaz.ele View Post
    I want to ask is that I only need to buy the kit, nothing else.
    everything is free available on internet. Am I right ?
    the Microstick
    Microstick for dsPIC33F and PIC24H Development Board


    has an onboard programmer (you don't need a seperate pickit 2 etc) and all the software is downloadable free for academic use



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