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How to update ROM in bq20z75

J.C Chen
Expert 1285 points


Hi, everyone

How to update ROM in bq20z75, I need to update ROM sometimes with OS.

Best regards

J.C Chen

  • 0
    Prodigy 20 points

    Write .senc file

    1. Go to Pro screen in bqEasy

    2. write smb word   0x0f00        // puts chip in ROM mode

    3. at bottom of screen under Srec programming use navigation to your senc file, select it and click on Program button.   After programming done pop up warns to restart bqEasy, just click OK

    4. send SMB command   0x08   // this restarts the firmware

    5. now restart bqEasy