Please note that E2E has undergone a major upgrade. Before logging in, please clear ALL your browser's cache and cookies.

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

ADS7883EVM: SPI communication with another board with different GND

Part Number: ADS7883EVM
Other Parts Discussed in Thread: ADS7883

Hi,

I'm trying to read data from the ADS78883 using SPI with an FPGA eval board. I power the ADS7883 with a standard DC supply while the FPGA board receives power from my PC via USB. Is this an issue in terms of ground? How should I connect the boards so that they have the same ground?

Thank you

  • Hello,
    Yes, this is an issue with the grounds. All the grounds should be connected together.
    Does the eval board the FPGA have a ground pin/test point that can be connected to the ADS7883 EVM? One wire connecting the two board grounds should close the loop.
    Regards
    Cynthia