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BQ76905EVM: Register Write and control help

Part Number: BQ76905EVM

Tool/software:

I am trying to activate cell balancing on the BQ76905EVM board.

The jumpers  have been configured to act as a 3 cell battery and 12.6V is applied to the Battery inputs.

In Battery Management Studio, I can read registers and write certain commands, such as switching to UNSEALED.

However I need help with the commands and subcommands.

What register should the 0x0083 command to activate cell balancing be written to?

I have attempted [10 00 83] and [10 00 00 83]. 

I can not find a register address list/map in the technical reference manual nor datasheet?

Is there a resource to see all the register addresses and possible commands?

Thank you.

Regards,

John

 

  • Hi John,

    Page 84 of the technical reference manual gives the 0x0083 command description:

    Recall that the communications use little endian format and should be written to the 0x3E command register and this one should be followed up with the checksum:

    Regards,

    Max Verboncoeur