DDC264EVM: DDC264EVM Interface with LabVIEW

Part Number: DDC264EVM

I have DDC264EVM successfully communicated with the win7 system and working fine with TI application.

Our application requiring is to communicate and control DDC264EVM using Lab VIEW 2015. Using " USB_IO_for_VB6.dll" user guide I have created Call Library function nodes for the four functions.

No clear information about USB device add and other parameters details how to communicate.

Using NI Visa I have worked serial port applications but this is little confusing.

Could you please any one help in resolving  my interface problem.

Thank you in advance.

5 Replies

  • Hi Kanakaiah Bharatha,

    I'm working on the same things. Here the url for the user guide.


    You have to import Dll with labview and create the function as indicate in the user guide.

    These function are ok with USB dev =0 , you don't need to import Ni visa.

    Anyway, i success to communicate but the function "FastCaptureAllData" give me some problems.

    I hope it will be usefull for you and if you success let me know !

    Best Regards,


  • In reply to duranti anthony:

    Thanks for the feedback, Anthony.


    As Anthony points out, you can refer to the latest ‘USB_IO_for_VB6.dll’ User Guide, with the link Anthony provided.

    There's information there with the functions you can to use to communicate with our device (i.e. capture data, configure registers,...) through the DLL, as suggested.

    Let me know how you come along and I can give you further guidance.


  • In reply to duranti anthony:

    Hi Anthony,

    Thank you for the reply and  for the information.

    But I am unable to communicate with board using those functions as mentioned in user guide.

    When I try to run with only one function writeFPGARegsc( ) to read the FPGA regs the application becomes unresponsive. 

    Screenshot attached 

    Anthony if  you could share code portion some screen shot   / only this section of code that would be great help in resolving my problem. 

    Any settings needed also please share. if you ready to share please send  to this mail ID kbharatha@osi-systems.com.

    Using .exe in LabVIEW   I am not facing any problem  only problem in communication with this board using "USB_IO_VB6.dll "file  and these functions.

    Thank you in advance Anthony.

    Thank you Simon for your reply.


    Kanakaiah Bharatha

  • In reply to Kanakaiah Bharatha:

    Hi Kanakaiah,

    Can you provide an update to your work with the DDC264EVM?

    Are you able to communicate with the DLL through LabView or another application?

    Let me know if I can be of assistance,

  • In reply to Saimon:

    Hi Kanakaiah,

    As I haven't received any answer, I assume the issue has been resolved.
    Please don't hesitate to contact me if you need further guidance.

    Thank you,