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BQ27520-G4:i2c communication errors and abnormal flag data.

Part Number: BQ27520-G4
Other Parts Discussed in Thread: EV2400


We have found a problem with a board under development that causes i2c communication errors and abnormal flag data.

This problem occurs in my system and in connection with EV2400.

Communication errors are "No acknowledge from device" and "EV2X00 Adapter USB Timeout"

Other values for Voltage and RemCap may be 0.

However, this problem occurs on some boards and not on others. No hardware differences between the two boards.

On a board in bad condition. Initially, the golden file was used without programming.

I know that is not normal, but I am currently programming the same golden file for all boards.

Is there a solution to this problem?