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bq34z100G1 In field I2C firmware update and calibration without operating system (Microcontroller Host)

Alexandru Marcus
Prodigy 35 points
Other Parts Discussed in Thread: BQ34Z100, BQSTUDIO

Dear Sir / Madam,

We are using the bq34z100G1 gauge on our new UPS system which will enter production early this year.

The main problem rises from the need to automatically field update (bq34z100) and recalibrate the bq34z100G1 for a new battery system.

The available hardware is a microcontroller with voltage-meter running no OS.

Can it be done?

If yes, I will need the datasheets for the bootloader (I2C Adr. 0x16) describing the Firmware update sequence (programming the *.srec file) and documentation on calibrating using the measured voltage without computer connection.

Thanks,

Marcus

  • 0
    TI__Guru 73830 points
    You can export a df.fs format file with bqStudio. This file contains the commands and data to update the data flash and the uC may be able to use this file.

    We have a "Going to Production..." document on the bq34z100 website that has some code for calibrating the device without using our tools. That document may help.