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BQ40Z50-R1: BQ40Z50 -R1 interface with Aardvark I2C analyzer

Divyanshu kumar
Intellectual 280 points
Part Number: BQ40Z50-R1

Hi

I am using this BQ40Z50-R1 for measuring battery features , I am using aardvark I2c , Spi analyzer to check the transaction for communication with sensor ,but we dont know correct transaction for communication with sensor please help us to provide steps of correct transaction for communication with BQ40Z50-R1 through aardvark analyzer.

and we need some example transaction for some features.

  • 0
    TI__Mastermind 24870 points

    Hello Divyanshu,

    I suggest you try searching for aardvark examples. We do not provide examples for aardvarks on ti.com

  • 0 in reply to Kang Kang
    Intellectual 280 points

    Hi kang

    please can you give us some example transaction for reading the voltage, current and temperature through i2c.

  • 0 in reply to Divyanshu kumar
    TI__Guru 52115 points

    Hello Divyanshu,

    Unfortunately, I don't have any example that is based on the aardvark i2c host.

    Here is a python example that might be helpful to you.  I would suggest you read the  BQ40Z50-R1 TRM to know more details about how to communicate with the gauge.

    Fullscreen bq40z50_smb_read_vt.py Download 
    import time
import smbus

DEVICE_BUS  = 1
DEVICE_ADDR = 0x0b

bus = smbus.SMBus(DEVICE_BUS)
        
voltage = bus.read_word_data(DEVICE_ADDR, 0x09)
    
time.sleep(0.05)

temperature_K = bus.read_word_data(DEVICE_ADDR, 0x08)
temperature_C = temperature_K * 1.0 / 10.0 - 273.15

output = "%dmV,%0.3fC" % (voltage, temperature_C)
            
print output

    Andy