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CCS/BQ27742-G1: communication with bq277742 over i2c Protocol

Part Number: BQ27742-G1

Tool/software: Code Composer Studio

currently i'm using bq27742-g1 fuel guage ic without EVM I have made its prototype on pcb so,i want to communicate it with Microcontroller.

i'm try to communicate using some steps but it can't communicate.

The data sheet refers to the full 8-bits when the device is addressed on the I2C bus.

I2C write address = 0xAA
I2C read address = 0xAB

The I2C device address in 7-bit notation is 1010101, which if interpreted as a byte translates to 0x55+ r/w .

start ack
0x55 + w ack
0x06 ack
R.START ack
0x55 + r ack
ReceiveData ack
ReceiveData ack
stop

but i cant get any data from fuel guage.

i have one query that if fuel guage is sealed then after we can read the data like voltage , temp.



thank you in advance.