BQ40Z50-R2: I2C communication

Mohan Khedkar

Part Number: BQ40Z50-R2
Other Parts Discussed in Thread: BQSTUDIO,

Hello sir,

Now i have data(Voltage ,current,Temperature) in bqstudio and want to transfer in STM32CubeMx through I2C protocol.So,how can i do it? I know how to initialise I2C protocol in STM32CubeMx but dont know how to take data from bqstudio.Eagerly waiting for your response.

Thanks

Mohan.

over 6 years ago

0 Batt over 6 years ago

TI__Mastermind 42535 points

Hi Mohan,

The bq40z50-r2 works on smbus. You need to program your ST uC to act as a bus master on smbus. SMBUS is a subset of the I2C protocol, so once you set it, it will work. I don't know if you have ST drivers but that's something you need to talk to them. However for the bq40z50-r2 you can get drivers here, https://github.com/tibms/kernel-4.4/tree/release/drivers/power/bq40z50

Power management

Power management forum

BQ40Z50-R2: I2C communication