lwew96

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About lwew96

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  1. lwew96

    DAC spartan3e

    @hamster I have posted my code. Can you repair my code to help me. Thank you so much dds.vhd sparnta3e.vhd sadasda.ucf
  2. lwew96

    DAC spartan3e

    I think no signal in fpga
  3. lwew96

    DAC spartan3e

    I drive SPI to create sine wave. But i think i haven't done. Anyone help me?
  4. i Used 3x 1k ohm series resistor and 3x 10 pF capacitor to ground to creat 3-rd low pass filter . The result is below picture. The signal is distorted
  5. tks @jpeyron Thank you so much!
  6. i have created sine wave 80khz but it is like digital signal . So anyone help me give some IC for reconstruction filter of Pmod DA3. Thank you so much!
  7. lwew96

    DAC spartan3e

    @xc6lx45 oh tks. But my aim is creating BPSK
  8. lwew96

    DAC spartan3e

    I am newbie. I want to use DAC spartan3e to generate sine wave at 100 kHz. But i don't know the function of pin SPI_MISO. So, Do i really need use pin SPI_MISO? Does everybody give some note when generating wave by DAC spartan3e. TKs all
  9. Can you help about reconstruction filter? I use 3rd- Low pass filter RC. It isn't better.
  10. lwew96

    Sine Wave from Pmod DA3

    It is not better. I use 3rd-order Low Pass Filter RC. I think i need use IC for reconstruction filter. But I don't know IC compatibility with DAC Pmod DA3. Anyone help me?
  11. lwew96

    Sine Wave from Pmod DA3

    Hi everybody, I used spartan 3 with Pmod DA3 to creat sine wave 80kHz. You can see below picture. I see this wave that is not smooth. I found the reason that i don't have reconstruction filter. I used reconstruction filter by 1st-order Low Pass Filter RC. But i see the result that is not better. So, i need everyone help me. Thanks
  12. Hello everyone, I need some examples about DAC Pmod DA3 to creat bpsk on Spartan 3 Starter Kit Thanks!!!
  13. Hi everybody, I am a student and i am learning about FGPA. I want to know how to use Pmod DA3 on Spartan 3 Starter Kit. So anyone help me give me code vhdl for Pmod DA3 on Spartan 3 Starter Kit? Tks all !
  14. Can you give me code vhdl about Pmod DA3 with Spartan 3 Starter Kit? I need it for my studying . Thank you for your help! @herve