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BQ40Z50-R1: reprogramming bq40z50-R1

George Mortimer
Expert 1205 points
Part Number: BQ40Z50-R1
Other Parts Discussed in Thread: BQSTUDIO

I am having some difficulty reprogramming the bq40z50-R1 using bqStudio 1.3.54.1.  When I attempt to download a .gg.csv file from my data storage andwrite it to the data flash, it shows up correct, but then when I read the data flash the old values show back up.  At first I thought that maybe it was because the pack was sealed, so I entered the unseal commands via the Manufacturer Access command on the Registers page before I wrote the .gg.csv file to the DF, but I still got the "old" file back when I read the DF.

What steps am I missing here?

  • 0
    TI__Expert 6575 points
    Hi,
    I think the issue may be with the version of bqStudio.
    Especially if the gg.csv file was exported with a different version, it may be misinterpreting the read back verification and aborting the write to data flash.
    Please use the test version of bqStudio (v 1.3.86.3) from www.ti.com/.../Bqstudio
    This should resolve this issue.
    Also, if you post the gg.csv file here, I can check to see if I can duplicate the issue.
    Regards,
    Swami
  • 0 in reply to Swaminathan Ramanathan75031
    Expert 1205 points

    Thanks for the help.  I have upgraded my bqStudio (to 1.3.53, not 1.3.86 as it was designated "for test only") and was able to get the DF to read and write properly.  One thing I did notice was that when importing the DF, I need to specify importing from a file, as the "default" setting just holds on to the previous DF values (even if you change them manually).