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bq27541-G1 Host syatem CC offset calibreatin on SLUA640

K. Sasaki14
Guru 10200 points

It is described on SLUA640 that while the device is calibrating the CC Offset, the host system must not read the ControlStatus Register at a rate greater than once every 0.5 seconds.

Why the customer should read the Control Status Register within 0.5s interval?

If the customer read  the Control Status Register at 1s interval, what does occur?

  • 0
    TI__Genius 14985 points

    Hi Sasaki-san,

    It does not mean that you must read it every 0.5s.  It means you should not read all registers faster (<0.5s).

    Reading every 1s is okay.  Reading every 1 day is okay.

    The purpose of this requirement is not to overload the gauge with too many I2C interrupts which can slow the FW operation down.