Part Number: BQ34Z100-G1
after completing the learning cycle accordingly to SLUA597, it is not clear how to create a golden file ready to be used in production.
In SLUA334B it seems the "Update Status" parameter must be manually changed from 06 to 02. In SLUA664 (referred to BQ34Z100 instead of BQ34Z100-G1), I can read: "When the golden DFI file is created by bqEASY, bit 2 will be cleared, leaving Update Status=0x02. Note that none of these bits should be manually changed."
So I don't know if and how to change the Update Status from 06 value (at the end of the learning cycle) to 02 (value suitable for production programming of the BQ34Z100-G1).
Is there any detailed procedure description for extracting the golden file at the end of the learning cycle by using the BQ Studio software?
Thank you and best regards
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In reply to Bryan Kahler:
thank you very much for your clear and complete answer!
In reply to Matteo Rigamonti:
In reply to Peter Money:
Thank you for the reply. I have checked the golden image settings and the update_status register is set to 02h, so IT is currently disabled.
So I will plan to create a new image setting update_status to 06h
Note that in our design the bq34Z100-G1 is system side, and the battery is not user replaceable.
The production sequence is:
Do you foresee any issues with the gas gauge having IT enabled when programmed at (2) in the production sequence? Will it get upset without a battery connected?
Would it be affected by subsequent operation of the PCB without the battery connected at (3)
Hi Pete, As long as the device is not powered, nothing should happen. However, lifetime values could be updated during the MCU tests if the device is powered but does not have a battery connected. It is recommended to send the command to enable IT and SEAL the device after the Final Unit tests. The MCU can even send the commands as part of the Final Unit tests. Sincerely, Bryan Kahler
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