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Fuel Gauge bq20Z655 Chemistry File.

Melvin Hall
Prodigy 15 points
Other Parts Discussed in Thread: BQ20Z655-R1, BQEVSW

We are using a bq20z655 fuel gauge to support  Panasonic cells NCR1865F with a capacity of 2900 mAh. Using bqEasy Evaluation Software I first loaded Chemistry file 238 which returned an error message Unsupported Device Contact Battery Management Applications for assistance. Next I loaded file 281 which also supports this cell but I received the same error message. What should we try next?

Thank You

Mel Hall

CRTES

  • 0
    TI__Genius 10235 points

    Melvin,

    There is an issue with this particular installer. If you send me your e-mail address in a private message I can have a link sent to you to download the necessary files to make it work.

  • 0 in reply to Chase7071949597
    Intellectual 790 points
    Hi Chase

    i also meet same issue.
    the EVSW show "Unsupported Device".
    please let me know how to update the chem file on BQ20Z655-R1.
    thanks!!!


    arking.chiu@wpi-group.com
    Arking Chiu
  • 0 in reply to Arking Chiu
    TI__Genius 10235 points

    Arking,

    Try downloading the installer from the link and see if that helps. Also, the chem ID may have still updated, despite the error screen.

    http://www.ti.com/lit/zip/sluc304

     

  • 0
    Prodigy 90 points
    Chase,

    I am having a similar issue...

    I am using a bq20z655-R1 and Saft cells MP174565 4800mAh

    I reinstalled the bqEVSW from: www.ti.com/.../sluc304

    At I start of bqCHEM : Warning! Communication with target device can not be established...
    Do you wish to ignore future errors?I click {NO] - (However I can read and write using Data Flash and .gg files or read with SBS)
    click [1B. Select Chemistry Manually],
    scroll and select MP174565 4800mAh then click [OK Update fuel gauge Data Flash],
    Error at Match_Template : Cannot find the Device encr file click [OK],
    Chem file did not match any template. Please get in touch with TI to sort this out. click [OK],
    Proceed at your own risk click [OK],
    Proceeding to Program Chem file .... click [OK],
    Fail read verify. Abort SubClass83 programming click [OK],
    Fail read verify. Abort SubClass84 programming click [OK],
    ... on and on
    Fail read verify. Abort SubClass95 programming click [OK],
    Cannot found ENCR file. IT Cfg will not be updated click [OK],

    Thanks,
    Jon