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Altera_Forum's avatar
Altera_Forum
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16 years ago

Communication with ADC on Cyclone 2

Hi,

I am wondering if there are any examples on how to communicate with the ADC Chip (WM8731) on the cyclone 2. I understand that the board uses the chip as a slave, but have no idea how to take samples from it.

In the bigger picture, I am connecting my guitar into the mic input of the board and will do some signal processing from there. At the moment, I have no idea how to set up the board correctly. Any suggestions/help?

7 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    I have a Cyclone 2 EPC20F484C7. Not sure what is a DE/DE2-70 board. Sorry.

    I have gone through the examples in the CD-ROM but I am very confused with all the code as I am not familiar with Verilog. Also, must we use the NIOS processor to communicate with the ADC? Is it possible to build a block diagram which does the job and if so, where could I find such an example?

    Apologies, I am totally new to FPGAs and any help would be appreciated.
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    hi!

    get university program audio core, and audio and video config core... that vil help... contains documentation abt how to use them...
  • Altera_Forum's avatar
    Altera_Forum
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    16 years ago

    All Terasic Dev Kits with an audio codec come with Verilog demostration code. As far as I understand the code, you can use it without NIOS II. It has a state machine that controls the codec setup (sending several commands). I agree, that the demostration code is far from being instructive.

  • Altera_Forum's avatar
    Altera_Forum
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    15 years ago

    Hello..ok , let say that I want to call the data which has been digitized by ADC(to modify the data), then how do I do it?

  • Altera_Forum's avatar
    Altera_Forum
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    12 years ago

    Hi Fantagiro_88,

    Do you have any solution to earlier topic that you wrote in 2009?

    If you could give a quick answer, it would be much appreciated.

    Thanks!:rolleyes: