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  • TI Thinks Resolved

DAC38J84: DAC38J84EVM + TSW14J10EVM + ZC706 issue

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Replies: 22

Views: 783

Part Number: DAC38J84

Dear all

i am developing a FPGA based arbitrary waveform generator, have the system components  (DAC38J84EVM + TSW14J10EVM + ZC706).

i have made the connection and tried the use of HSDC pro +DAC3XJ8X GUI and configured and tested the generation of tone successfully.

Now my question is, i would like to use Vivado system design software suit for arbitrary waveform generation... can you provide example project based on my system ?

if its not available can you please help me developing the vivado based project ?

any help in this regard is highly appreciated 

thanks

  • Hi,
    you may go to the TSW14J10 web page on TI.com
    www.ti.com/.../TSW14J10EVM

    There is a link for firmware design file download
    www.ti.com/.../slac690

    -Kang
  • In reply to Kang Hsia:

    Hello

    thanks for your suggestions 

    i tried using TCL script to build the project in vivado TCL console,

    the problem is,i am currently using vivado 2018.2 and the given example on TI`s webpage support only 2016.1.

    kindly suggest some solution or update the firmware version for 2018.2.

    kindly reply

  • In reply to Ravikant Pandey:

    Hi,
    We will have to check if the firmware can be updated to the latest Vivado.
    -Kang
  • In reply to Ravikant Pandey:

    Hi,
    I was told that the firmware is only supported on older version of the Vivado.
    Our contacts at Xilinx do not want to provide new scripts that works on new versions.
    It is probably best that you contact your local Xilinx support to ask them for scripts for new versions.

    -Kang
  • In reply to Kang Hsia:

    Hi

    thank again for prompt reply.

    i have another question,

    keeping this in mind, i have the same set up of hardware so 

    is there any solution for generating customized/ arbitrary waveforms  on 4 DAC outputs of DAC38J84EVM..?

    i am able to generate single or double tone using HSDC pro.

    any help is appreciated

     

  • In reply to Ravikant Pandey:

    Hi Ravikant,

    Assuming you connect the DA38J84EVM to the TSW14J56EVM, you can load custom waveforms (.csv file) through our HSDC PRO software)

    You can generate your own patterns via Matlab for instance. You can create 4 columns of data, one column for each DAC.

    The format for the .csv data is signed 16bit integer (i.e. -32768 being most negative, and +32767 being most positive)

    The TSW14J56EVM user's guide discusses the memory depth supported on the DDR bus

    -Kang

  • In reply to Kang Hsia:

    Hi Kang

    thanks for your suggestions

    i am using HSDC PRO software to generate custom waveforms,

    now my question is how to set maximum sample rate of 2.5 GSPS at all four DAC  of DA38J84EVM .

    because i have to generate  80 MHz wave forms and i want to use maximum sampling capability of DA38J8EVM .

    please suggest the setting in DAC3XJ8X GUI to achieve 2.5 GSPS.

    Any help is appreciated.

    thanks

    Ravikant 

  • In reply to Ravikant Pandey:

    Hello Ravikant,

    Pretty much every mode in the DAC38J84 can support your need. You will need to look at the max bandwidth supported

    Afterwards, it is a matter of the lane rate and the number of lanes you have available on your FPGA. This is your application/system requirement, so we at TI cannot determine this for you.

    -Kang

  • In reply to Kang Hsia:

    Hello Kang 

    thanks for your suggestions again.

    i am trying to operate DAC38J84 at different frequency but i can only operate it in LMF-442 configuration,

    please suggest me the setting for LMF_841.

    i have tried doing it according to the table recommended by you but no response at output.

    for example my DAC3XJ8X setup is as follows, what else i need to do..?

    also, please suggest the LMK04828 clock output setup.

  • In reply to Ravikant Pandey:

    Ravikant,

    you are not giving us enough information to help you move forward. Please attach a ppt with the HSDC PRO screen shot and the steps you are going through to set up the device.

    Based on the screen shot above, the set up will just work.

    Also, it is best that you order the TSW14J56 EVM to check in parallel with your TSW14J10 setup.

    The setup of the TSW14J56EVM per described in the user's guide for DAC38J84 EVM is the most stable setup.

    -Kang

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