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BQ27Z561: Not able to perform write operation after entering to ROM mode

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Part Number: BQ27Z561

Hello,

I am using bq27z561 in custom designed circuit board and MCU is communicating with bq27z561 over I2C channel.

My overall goal is to get accurate SOC value from fuel gauge and for that i have already generated (bq.fs, gm.fs, df.fs &.srec) files after following Learning cycle steps for my battery model.

Now when I am trying to program bq.fs over chip I2C commands are failing after executing ROM mode command,

I have attached I2C traces as below where device is giving NACK when MCU is trying to perform write operation to slave address 16.

Can i get some help on why chip is giving NACK?

(Please visit the site to view this file)


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