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BQ27220: Can we write the data to CEDV profile1 and profile2 at the same time

Statham Su
Genius 4990 points
Part Number: BQ27220


Hello Sir:

Can we write the data to CEDV profile 1 and profile 2 at the same time?

Our customer wants use profile 2 to be a manufacture data.

Such as use gauging configuration value 0x0920, 09 means month, 20 means year.

Other parameters comparisons.

Does these actions will effect the IC works?

Please let us know your recommendations.

Thanks a lot.

  • 0
    TI__Guru** 105990 points

    Hello Statham,

    I believe the first 3 profiles are stored in ROM and are predefined, profiles 4-6 are in OTP.

    If you don't plan to use the OTP profiles and only need to program it once for manufacture info it shouldn't interfere with operation. Although I would recommend using a gauge with dedicated scratch-pad memory.

    Sincerely,

    Wyatt Keller