BQ76907: BQ76907 device address change is possible?

Rajesh tirupati

Prodigy 20 points

Part Number: BQ76907
Other Parts Discussed in Thread: MSPM0L1306

Tool/software:

1. Can i configure BQ76907 as above?

2. Is it possible to change device address and communicate with one micro.

3. if no, please suggest me suitable part (CELL controller)

4 months ago

0 Arelis Guerrero 4 months ago

TI__Expert 5645 points

Hi,

1) Yes, technically multiple BQ76907 can be connected to the same I2C bus.

2) You can change the I2C address after power up, refer to the TRM for more details https://www.ti.com/lit/ug/sluucj0/sluucj0.pdf.

The I2C device address (as an 8-bit value including target address and R/W bit) is set by default as 0x10 (write), 0x11 (read), which can be changed by the Settings:Configuration:I2C Address configuration setting.

Keep in mind you'll need to setup different I2C after each power up (RAM) in your SW.

3) You can find alternatives on ti.com for I2C multiplexer based on your application needs. https://www.ti.com/interface/i2c/switches-and-multiplexers/products.html

Regards,

Arelis G. Guerrero

0 Rajesh tirupati 4 months ago in reply to Arelis Guerrero

Prodigy 20 points

Hi,

Thankyou for your replay,

I have one doubt.

1. https://dr-download.ti.com/secure/software-development/driver-or-library/MD-XFA0hcfG7k/1.0.0.0/BQ7690x_CodeExamples_V1.0.0.0.zip

in this code example link , How to change target address? please provide sample code for write and read.

2. MSPM0L1306 microcontroller is having max 28 pin. suggest me 48pin controller.

+1 Arelis Guerrero 4 months ago in reply to Rajesh tirupati

TI__Expert 5645 points

Hi Rajesh,

To change the address on the example code you can modify the header file DEV_ADDR

Regarding the MSPM0 selection, please post a new question with the MSPM0L1306, so that the MSP expert team can guide you on the selection.

Regards,

Arelis G. Guerrero

Power management

Power management forum

BQ76907: BQ76907 device address change is possible?