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bqWizard questions in conjunction with bq78pl114

Andreas Dahmen
Prodigy 10 points
Other Parts Discussed in Thread: BQWIZARD

Hi, i´ve got an issue with reading cellvoltage. In bqWizard cells window are the correct values shown, but with the SBD Read/Write Utility "wrong" values for same cell are shown, see picture.

Is there any conversion factor needed?

0728.Untitled.tif 

Is there a SMB command for reading safety flags / register?

thanks for any suggestions!

best regards

  • 0
    Prodigy 231 points

    Hello!

    As I just had the same misconception, for future reference:

    bqWizard shows the values with incorrect/unexpected byte order. Ada, your decimal value 50188 in hexadecimal notation is C40C. Swapping the bytes leads to the correct value 0CC4, or decimal  3268 (mV).

     

  • 0 in reply to Jörg Selig
    TI__Intellectual 2850 points

    Hi,

    As Jörg Selig said, the problem that you have is likely a byte order problem. The bqWizard  SBD Read/Write Utility when used with the TI USB-TO-GPIO adapter has a "problem" with byte order.  The UINT data type will show the large value.  Read the value as hex, swap the bytes and convert to decimal.

    For the flags you can have a look on the command Batterystatus. The Battery status command is described in the SBS data specification http://www.sbs-forum.org http://www.sbs-forum.org/specs/sbdat110.pdf sheet 33 (page 28).  We did not duplicate this in our documentation.  Note that all the status information shown in bqWizard is not available.

    Kevin