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ADS1293 ECG issue

KM Yi
Prodigy 10 points

Other Parts Discussed in Thread: ADS1293, ADS1293EVM

Hi,

Currently I am working on ADS1293 EVM board. I remove the ADS1293 chip on EVM board, and connect my ADS1293 board I designed based on the evaluation board to the ADS1293 EVM board.

The captured ECG image is as follows:

What could be wrong or how could I find out what is wrong?

Thanks and Regards
KM.

  • 0
    Prodigy 60 points

    Hi Kim,

    I have just received the ecg EVM board and try to connect it to my pc. I am in the early stage of testing so i ll be glad if you could share your experience here:

    - what do you use to power the board?

    - where did you get ecg simulator/ real compatible electrodes?

    - what is the Jtag used for and what cable would you recommend purchasing?

    Thanks a lot!

    Matt

  • 0
    TI__Expert 3835 points

    Hello KM,

    How did you connect your own ADS1293 board to the ADS1293EVM?

    The first thing I would verify is for correct register write and read functionality. If this works fine, next I would use the test signals configurable in bits [7:6] of addresses 0x01, 0x02 and 0x03 and capture data. The positive test signal is 200mV, the negative test signal is -200mV and the zero test signal is 0V. If this works fine, then I would verify the external signal connections.

    Regards,

    Sergio