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BQ20Z95: how to implement SMB with I2C?

Giuseppe Divella
Prodigy 165 points

Hello everybody,

suppose you have a Cortex-M4 micro that you want to connect with a TI BQ20Z95 fuel gauge. I could use the I2C port to establish the communication, but have no idea of how to implement the Smart Battery Bus specification on the I2C.

Would you, please, suggest me some guide/tutorial to start with these topic?

Thanks a lot

Giuseppe

  • 0
    Intellectual 370 points

    Hi,

    Maybe you can find your answer, or start reading this document, "slaa073; Software Implementation of the SMB for MSP430"   I figure I'll need some gateway device sitting between, can be any MCU. 

    I wanted to try this one too, when I can get an EVM with SMB port, will be a fun project. Code Composer Studio include many working example using communication protocols, it would be a piece of cake, following their sample codes.