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What RESET command do ?

Pierre Le Gargasson
Intellectual 260 points
Other Parts Discussed in Thread: BQ27510-G3, BQEVSW

Hi,

I'm experiencing difficulties during learning cycle with bq27510G3 gauge.

What a RESET command should resets ? Currently, when I send this command, "IT Enable" is still 01 and "Cycle Count" doesn't reduce to 0. FAS and SS flags are cleared, so I'm in FULL ACCESS mode. Do I have to be in UNSEALED mode (FAS set) ?

Regards

Pierre

  • 0
    Genius 3970 points

    The RESET command does the same function as a Power-on-Reset (POR). It reinitializes the device's RAM but not the data flash, hence why your IT Enable is still set to 1 and your cycle count is not reset.


    To restore those data flash variables on your bq27510-G3, reload the .senc file using bqEVSW or GaugeStudio. You can download the .zip file containing the .senc firmware file here (sluc442).

    The RESET command can be used in the UNSEALED (SS is cleared but FAS is set) and FULL-ACCESS modes (FAS and SS are both cleared). If the gauge is in the SEALED state (FAS and SS are both set) then the RESET command will not be available.

  • 0 in reply to Jason Gin
    Intellectual 260 points

    Thanks Jason. I don't know why but my gauge was locked and RESET command didn't work in FULL-ACCESS mode. After playing with SEALED, UNSEALED and FULL-ACCESS commands, I have the expected RESET working.