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ADS117L14: ADS117L14 reading data using SPI

Dong Le
Prodigy 10 points

Part Number: ADS117L14
Other Parts Discussed in Thread: ADS127L18

Can converted ADC data from the ADS117L14  be read via SPI (e.g SDO pin) instead of DOUT?

Thanks, 

  • 0
    TI__Guru 50130 points

    Hello Dong Le,

    Welcome to the TI E2E community.

    No, only configuration register data can be read from the SPI port on the ADS117L14.  Conversion data is only available on the DOUT pins(s).

    We have example code that shows how to use a standard SPI port to read data from the data port by configuring the SPI port on the system processor as a 3-wire peripheral.  This code was written for the 24b, 8-channel ADS127L18, but can easily be modified for the ADS117L14.

    https://www.ti.com/tool/download/ADS127L18-MSPM0-EXAMPLE-CODE

    Regards,
    Keith Nicholas
    Precision ADC Applications