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DAC38J84: DAC38J84EVM + TSW14J10EVM + ZC706 issue

Trong Le
Intellectual 1595 points
Part Number: DAC38J84
Other Parts Discussed in Thread: LMK04828

Hi team,

My customer is working with DAC38J84EVM and facing some issues as below.

Configuration: ZC706 + TSW14J10EVM + DAC38J84EVM

Issue 1: In the TSW14J10 FMC-USB Interposer Card User guide, page 32 (with yellow)

Question:  ZC706 board has JTAG,  why it cannot connect to TSW14J10EVM?
 
Issue 2: When I try to config the clock for DAC38J84EVM by DAC3xJ8x GUI v1.1, on the tab LMK04828 Controls/Clock Outputs:
-          Cannot uncheck Group Powerdown option.
-          Try to change the value of DCLK Divider, but the software always use 31 (as below figure)
I try to run the software on other PC, uninstall and reinstall but it is still happening.
Have you faced with these issue? How to resolve?

Btw, can you send us the FPGA reference design, C source code of project test DAC38J84EVM for reference?

Thank you.
Trong Le



  • 0
    TI__Genius 12965 points
    Trong,

    We will look into this and get back with you soon.

    The FPGA firmware for the ZC706 is available on ti.com on the TSW14J10EVM site. Look in the Software section - TSW14J10 Xilinx Software link.

    www.ti.com/.../TSW14J10EVM

    specifically:
    www.ti.com/.../slac690

    Ken.
  • 0 in reply to Ken C
    TI__Guru* 91947 points

    Trong,

    The ZC706 FPGA does not allow a .SVF file to load properly through the on-board JTAG connector. This is the file format HSDC Pro GUI sends out. This is why Vivado is required to load the firmware. This is what the User's Guide should have mentioned.

    Regarding the DAC GUI, it appears the GUI is not connected properly to the EVM. After power up, after the GUI is opened and connected to the EVM, you must issue a DAC reset by clicking on the "Not in Reset" button, then clicking on it again when it reads as "DAC in Reset". After this, enter your parameters then click on the "Program LMK04828 and DAC3xJ8x" button to load the DAC and LMK. For a test, set the EVM Clocking Mode to "Internal". After the values are loaded, you should see LED D7 turn on indicating the LMK04828 has been programmed.

    Regards,

    Jim

  • 0 in reply to jim s
    TI__Intellectual 1595 points

    Thank you, Jim and Ken.