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How to make hardware trigger of ADC12D1X00RB reference board work?

Yiming Zhang
Prodigy 90 points
Other Parts Discussed in Thread: ADC12D1800, WAVEVISION5

I am using ADC12D1X00RB reference board. My problem is about how to use the hardware trigger of the board. I followed the user guide to feed in trigger signal. I also measured the output signal of the chip MC100EP16. The output signal is correct. But I still cannot make the external trigger work.Could you tell me how I can do that? Thank you very much!

  • 0
    TI__Mastermind 44560 points

    Hi Yiming

    We'll look into this and respond tomorrow.

    Can you let us know what the Wavevision GUI reports for the name of the board when it is connected and firmware is loaded?

    Thanks,

    Jim B

  • 0 in reply to Jim Brinkhurst1
    Prodigy 90 points

    The name is  

    ADC12D1800RB.

     

  • 0 in reply to Yiming Zhang
    TI__Mastermind 20541 points

    HI Yiming,

    I am using the ADC12D1800RB4 board and it seems to work fine with external H/W trigger enabled. Please follow the steps described in the procedure below.

    1. Select the appropriate mode and Acquisition size for your ADC12D1800 (By default NonDES I ch is selected and 4K-Sample acquisition Size is selected).

    2. Click the box next to H/W trigger. Trigger Armed LED should light up on the board.

    3. Click the acquire data button. The WaveVision will wait for external H/W trigger signal.

    4. Apply the trigger signal at J26 and WaveVision should acquire the data.

    Please make sure you are setting up the trigger signal in the appropriate range as mentioned in the user guide. I have attached the screen shot of the WaveVision illustrating the setup procedure.


    Regards,

    Neeraj Gill

    HSCC

  • 0 in reply to Neeraj Gill
    Prodigy 90 points
    Hi Neeraj,

    Actually, I did what you said several days ago. I still cannot make it work.
    The first thing is that when I clicked the box next to H/W trigger the Triggered Armed LED is not on. What do you think the reason could be? Is it possible that I need to remove or add some jumpers on the board?

    Secondly, What kind of trigger signal were you feeding into the external trigger? I did not find any specification about the trigger signal in the user guide.

    Thank you.
    Regards,
    Yiming
  • 0 in reply to Yiming Zhang
    TI__Mastermind 20541 points

    Hi Yiming,

    Can you please sent us the log file for WaveVision?

    Here are the steps you will need to follow to get the log file.

    The log file will be located at following location.

    1. C:\Users\Public\Documents\National Semiconductor\WaveVision5_HS11\Data\LogFiles

                   Or C:\Users\Public\Documents\National Semiconductor\WaveVision5\Data\LogFiles

    1. At this location you will see a file named DLLLog.txt. Delete this file. After the file is deleted try to do a data capture using H/W Trigger?

    2. You will find the DLLLog.txt file at same location. Can you please send us this file?

    The trigger signal can be any signal that transition from low value to high value while maintaining the limits mentioned in the user guide. For instance I was using a square wave signal with 50% duty cycle transitioning from 0V to 2.3V with 100MHz frequency. If you want further information please look at the data here is the link http://www.onsemi.com/pub_link/Collateral/MC10EP16-D.PDF

    Regards,

    Neeraj Gill

     

     

     

     

  • 0 in reply to Neeraj Gill
    Prodigy 90 points

    Hi Neeraj,

    The attachment is the log file for WaveVision. Thanks for your help.

    Regards,

    YimingDLLLog.txt

  • 0 in reply to Yiming Zhang
    Prodigy 90 points

    Hi Neeraj,

    Did you find anything wrong with the log file I attached? 

    Regards,

    Yiming

  • 0 in reply to Yiming Zhang
    TI__Mastermind 44560 points

    Hi Yiming

    I tried the same test with an ADC12D1800RB that I have in my lab. I was able verify that the HW Trigger function does work OK with my setup.

    When comparing the resulting log file with the one that you sent I noticed that the software version you have is earlier than the current version of Wavevision 5 on the Web. Can you download the latest version and update your computer, and then try the test again? Can you also let us know what version of MS Windows you have on your computer?

    Here is a link to the Wavevision 5 download page:

    http://www.ti.com/tool/wavevision5

    Best regards,

    Jim B

  • 0 in reply to Jim Brinkhurst1
    Prodigy 90 points

    Hello Jim,

    When I used the other version of the wavevision software, the trigger problem is solved. Thanks for your help!

    However, I have another question. The software I previously used came from the CD along with the reference board. For my application, I need to do some modification of the verilog code provided in the CD. Since there exists some problem for the previous version of the software, I doubt there might be some problem with the verilog code provided. Thus, do you think I could get the latest verilog code for that reference board? Thank you.

    Regards,

    Yiming Zhang