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    BMP280 example calculation of temperature

    gambrose
    Occasional Visitor

    BMP280 example calculation of temperature

    On the example on page 23 of the datasheet the temperature calculation example doesn't work with the provided temperature ADC value 415148.

    It does work with the 519888 value but that value is for the registers 0xF7 / 0xF8 / 0xF9[7:4] which are the pressure register, not the temp register.

    1 REPLY 1
    FAE_CA1
    Community Moderator

    Re: BMP280 example calculation of temperature

    Hi,

    Thank you for your comment. It is a typo on page 23 of BMP280 datasheet. The register address (MSB/LSB/XLSB) for UT [20bit] should be 0xFA / 0xFB / 0xFC[7:4], not 0xF7 / 0xF8 / 0xF9[7:4].  And the register address (MSB/LSB/XLSB) for UP [20bit] should be 0xF7 / 0xF8 / 0xF9[7:4], not 0xFA / 0xFB / 0xFC[7:4].

    Since BMP280 has been discontinued, we are unable to update its datasheet to fix this typo.

    Thanks.

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