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Original question:

BQ28Z610: How to exit the ROM mode?

BQ27510: How to get hex dump for programming in firmware mode.

user5502302
Prodigy 110 points
Part Number: BQ27510
Other Parts Discussed in Thread: BQSTUDIO

Hello,

We have a BQ27510 gauge communicating with a micro-controller and we would like to be able to program the gauge from the micro-controller.

We managed to flash the gauge in ROM mode from the micro-controller using dffs files generated with bqstudio, but it is difficult in our use case to guarantee that the flashing process will not be interrupted, and it seems to be much safer to program the gauge in firmware mode according to this thread:

The problem we are facing is that we don't find the "hex dump" button in bqstudio (v1.3.101 with "show advanced views" ticked) . Is there a way to get an hexadecimal image of the data flash with this gauge component ?

Thanks.

  • 0
    TI__Guru** 105760 points

    Hello,

    The df.fs file contains only the data flash, the bq.fs would contain both. You can choose if you want to include the ROM mode command at the beginning og the flash stream file as well.

    This gauge doesn't support a hex dump.

    Sincerely,

    Wyatt Keller

  • 0 in reply to Wyatt Keller
    Prodigy 110 points

    Hello,

    We only need to modify data flash, not the firmware. But we would like modify in firmware mode instead of ROM mode so if the process is interrupted we do not risk to brick the device. So I have two questions:

    1. Is there a way to get the gauge configuration data in a format that we can flash it back in the data flash in firmware mode (using BlockDataControl, BlockData and BlockDataChecksum commands) ? I tried to parse df.fs file to make it match data flash structure without success.
    2. I read in the documentation that in firmware mode "The written data is not persistent, so a power-on reset does resolve the fault.". Does it mean that the only way to modify the gauge configuration persistently is to flash it in ROM mode ?

    Thanks.

    Regards.

  • 0 in reply to user5502302
    TI__Guru** 105760 points

    Hello,

    If you are flashing the df.fs file there should be minimal risk for doing it in firmware or ROM mode. When you are flashing the instruction flash then it is more risky.

    I would follow the Gauge Communication app note to upload the flash stream file DF file in ROM mode: www.ti.com/.../slua801

    Sincerely,

    Wyatt Keller