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JFran.2
Associate
July 13, 2022
Question

I am seeing an undershoot voltage around 1.25v for HTS221 while data transfer going on. Can you please help me to solve this issue.

  • July 13, 2022
  • 3 replies
  • 1814 views

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    3 replies

    Eleon BORLINI
    ST Employee
    July 18, 2022

    Hi @JFran.2​ ,

    are you referring to the circled in red? Are you sure they are undershooting of 1.25V? It looks to me it is the standard signature of the ACK (the slave that drives low the SDA line after master communication).

    0693W00000QLR4GQAX.pngI'm not sure instead that the second clock sequence is correct: why is it not grouped in batches of 8-bits?

    -Eleon

    JFran.2
    JFran.2Author
    Associate
    July 20, 2022

    Hi Eleon,

    I am not referring to that. Please see the attached image

    -Jenitt

    JFran.2
    JFran.2Author
    Associate
    July 20, 2022

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