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MSP430G2553: I2C - 16bit addressing

Jens G
Expert 3335 points
Part Number: MSP430G2553


Dear TI Team, 

please could you provide a code example for a I2C 16bit addressing? Also a document ion "how to do" would work? 

Thanks and best regards

Jens 

  • 0
    Guru 100785 points

    Are you thinking of 10-bit bus addressing [Ref User Guide (SLAU144J) Secs 17.3.4.1.3 and 17.3.4.2.3] or working with a slave which uses 16-bit register numbers [e.g. VL53L3CX].

    I don't recall seeing any examples of the former. The latter depends on the slave, notably byte order.

  • 0 in reply to Bruce McKenney
    TI__Expert 3335 points

    Hi Bruce, 

    In the Reference Guide is for my point of view only a 10 bit addressing of the slave described. We have to use 16 Bit  Register Numbers of the slave. Please could you help with an solution code/proposal for this?

    Thanks and best regards

    Jens 

  • 0 in reply to Jens G
    Guru 100785 points

    What hardware/software do you have now?

    When I moved from the VL53L0 (8-bit register numbers) to the VL53L3 (16-bit register numbers) all I had to do was change my register-read/write functions to send two register-number bytes rather than one, since the lower-level (I2C) driver didn't care. As I recall the VL53L3 wanted the register numbers MSByte first.

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