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BQ27541-V200: Convert to HDQ and Vise Versa to I2C (Not using BQEV Software)

Sime Darby
Intellectual 470 points
Part Number: BQ27541-V200

What's the commands to use to convert from I2C Mode to HDQ Mode?

What's the commands to use to convert from HDQ Mode back to  I2C Mode?

  • 0
    TI__Guru* 76230 points

    For I2c to hdq see commands below. This is a one way street, you can't go back to i2c from hdq.

    1. I2C address 0xAA w 00 00 0f //Enter ROM mode command
    2. I2C address 0x16 w 00 16 //COMM Select command
    3. I2C address 0x16 w 04 05 //select HDQ8 communication
    4. I2C address 0x16 w 64 1b 00 //write checksum 0x16 + 0x05 = 0x1b to execute command
    5. I2C address 0x16 w 00 0f //exit ROM mode to FW mode
    6. I2C address 0x16 w 64 0f 00 //write checksum to execute command

    thanks

    Onyx