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LDC1614EVM: About the data in the EVM

Angela Cheng
Prodigy 40 points
Part Number: LDC1614EVM
Other Parts Discussed in Thread: LDC1614

Hi,

  1.  From the data streaming page of the GUI, there are options on what kind of data it can present. May I know what is the “Raw Code” and “Diff Code” presenting?
  2. How can they ( “Raw Code” and “Diff Code”) be used?
  3. When both in-build sensors are in use, there seems to be a difference in the initial value. Will that be an issue for future uses?

  5. While connecting my own sensor to one of the sensor ports, there is a huge difference with the initial value, what may be the cause of that?
  7. what can be done to compensate the initial difference?
  • 0
    TI__Intellectual 2725 points

    Hi Angela,

    Raw Code is the actual data output from the LDC1614 DataX (for eg. DATA0MSB&DATA0LSB) registers. The Diff codes are defined as follows:

    "DIFF0 = DATA0 - DATA1",
    "DIFF1 = DATA1 - DATA0",
    "DIFF2 = DATA2 - DATA3",
    "DIFF3 = DATA3 - DATA2",

    You can use the offset registers in the register map to compensate for the difference. Refer to the end of section 7.3.2 in the datasheet, pg 13.

    Regards,

    Varn.