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BQ34110: DataFlash CEDV Profile setting from reply file of GPC tool

K. Sasaki14
Guru 10200 points
Part Number: BQ34110
Other Parts Discussed in Thread: GPCCEDV

I got a GPC tool reply as the following,

----------------------------------------------------------
CEDV parameters resulting from the fit. If EDVV bit is set to 1, EMF and EDVR0 have to be multiplied by the number of serial cells when written to data flash 


EMF 3817
EDVC0 213
EDVC1 0
EDVR1 417
EDVR0 6105
EDVT0 4651
EDVTC 3
VOC75 3935
VOC50 3808
VOC25 3752
----------------------------------------------------------

bq34110 doesn't have EDVV bit, so don't we need to set multiplied value by number of series cell to EMF and EDVR0 even if we use multi cells?

I understood we should set each parameter as the following, please let me know if there is any wrong.
EMF value to EMF of Data flash
EDVC0 value to C0 of Data Flash
EDVC1 value to C1 of Data Flash
EDVR1 value to R1 of Data Flash
EDVR0 value to R0 of Data Flash
EDVT0 value to T0 of Data Flash
EDVTC value to TC of Data Flash

And I looked we can ignore VOC75, VOC50  and VOC25 value with bq34110 on the other E2E post.

Should we set "Voltage 0% to 100% DOD" of Data Flash? If it is yes, what value should we set?  Is it "OCV11.txt" file's value?

Best Regards,
Kohei Sasaki

  • 0
    TI__Mastermind 25955 points

    Hi Kohei,

     

    Yes, the above is correct. This device is configured per cell. If the logs sent to the tool were of the pack voltage with the appropriate series value, it should be the per cell value returned by the tool.

     

    After using the GPCCEDV tool, please use the values from the OCV11.txt file to configure the Voltage 0% DOD through Voltage 100% DOD values found in Data Memory > Gas Gauging > CEDV Profile.

     

    The Fixed EDV0, EDV1 and EDV 2 values may also be set based upon the 0%, 3% and 7% SOC levels of your cell with respect to voltage.

    Sincerely,
    Bryan Kahler