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Switch bq27541 to HDQ Command

Pete Wilhite
Intellectual 320 points
Other Parts Discussed in Thread: BQ27541

Does anyone know what the I2C command is to set the bq27541 to HDQ mode using the bq80xRW activeX control? It is not practical to use the EV software in production and there is no mention of what the command is in the TI documentation. - Thanks

  • 0
    Intellectual 320 points

    It appears this is the command sequence noted in slua504a:

    While in ROM Mode send the following commands;

    (a) I2C Command 0x00: Byte 0x16
    (b) I2C Command 0x04: Byte 0x05
    (c) I2C Command 0x64: Byte 0x1B
    (d) I2C Command 0x65: Byte 0x00

    Exit Rom Mode.

    Thanks to John Gracia at TI Phone Support!