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DAC38J84 GUI Alarms and Errors

Tong Xu
Intellectual 515 points
Other Parts Discussed in Thread: DAC38J84EVM, DAC38J84

Hi,

I'm working on a project which connect the DAC38J84EVM with FPGA board through FMC. I build the project in Vivado to test the interface, it is intended to generate sinusoid waveform.

The DAC board is configured through DAC38J84 GUI, and the configuration is as follows.

 I write a testbench to test this project, and it works find during simulation. However, when I implement it on the hardware, the output waveform of DAC board is incorrect.

The Alarms and Errors from DAC38J84 GUI is shown as follows.

It seems there are a lot of errors but I don't know where I did wrong. I'm new to FPGA and I don't know the general steps to solve this problem. Could you give me any suggestion?

Thank you.

Regards,

Tong Xu

  • 0
    TI__Guru* 91947 points

    Tong,

    Are you using a Xilinx development platform? If so, which one? Are you using a TSW14J10EVM to interface to the FPGA platform? Are you providing both a core clock and reference clock to the FPGA? What frequency are these at? Did you use any of the example FPGA firmware code provided on the TSW14J10EVM product folder on the TI website?

    Regards,

    Jim

  • 0 in reply to jim s
    Intellectual 515 points
    Hi Jim,

    I'm using a Xilinx development platform, which is Vivado 2015.4. The FPGA platform is HTG700, which is a product of HiTech Global and uses Virtex 7. Both of the core clock and reference clock to the FPGA are from DAC38J84EVM, and they have the same frequency, which is 184.32MHz.

    Since I'm using a FPGA from another company, I didn't use the example FPGA firmware code on the TI website.

    Thanks,
    Tong