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Original question:

TMP117: Polling the data ready flag seems to clear it inadvertently (when using 1-shot mode)

TMP117: One-shot mode working process

Will Wang47
Expert 7750 points
Part Number: TMP117

Hi team,

I want to check with you how we should start one-shot operation, what command should I write to TMP117? The datasheet just show I2C command, and didn't see what command, could you help clarify this?

Thanks and Best Regards,

Will

  • 0
    TI__Mastermind 28075 points

    Hi Will,

    Thanks for the question. In order to start a one-shot, perform an I2C register write command (as shown in figure 22 of the datasheet) to set MOD[1:0] (bits 11:10) in the configuration register (0x01) to 11. 

    You should ensure that the other configuration settings are not improperly overwritten during this write.

    Best Regards,
    Brandon Fisher