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请教BQ275xx系列FW update问题

Other Parts Discussed in Thread: BQ27520-G4, EV2400

我们在Intel Baytrail platform上使用BQ27520-G4  Fuel Gauge,需要Update Fual Gauge的FW,我看到TI的官网上有document SLUA541A Updating the bq275xx Firmware at Production ,提到update的流程,但是不是很清晰,希望TI专家能帮忙解释解释?

这是update是在哪个平台下?是在post过程中还是在OS下?需要用的什么工具进行I2C的读写?