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Original question:

BQ27510 I2C Read Problems

BQ27510-G2: BQ27510 I2C Read Problems

Prachi Parekh
Prodigy 70 points
Part Number: BQ27510-G2
Other Parts Discussed in Thread: BQSTUDIO, BQ27510-G3

first I was able to read SOC registers. then I unclip the battery from board and then again clipped it to board.. now it is showing 0 only for all registers

  • 0
    TI__Mastermind 24870 points

    Hello Prachi,

    Quick clarification, is there a reason you are using a G2? TI recommends using a G3 device as that is our latest FW.

    Are you testing this with bqStudio or your MCU? Can you draw a block diagram of your setup? We will need some more information to debug this.

    I would try to read a "Voltage" value first to make sure the I2C sequence is working on your side.

    Make sure to have BAT_DET bit set. Refer to the bq27510-G3 TRM.