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Original question:

BQ24296: BQ24296

BQ24296: Register debugging

Yanni Li
Intellectual 1960 points
Part Number: BQ24296
Other Parts Discussed in Thread: DP83869HM,

Hi team,

We have a customer inquiring about the supply current for DP83869HM. ,here are the inquiry from the customer in verbatim: 

"I found a question during debugging the BQ24296M register, what I write to the register will return to the default state about 30 seconds later. For example, I write the REG00 (the default state is 37(00110111)) to 07(00000111), and I read the state of the REG00 once per second, found that the REG00 is back into 37 after read about 30 times. What I want to know is how to write the register forever, not writing every time."

Thanks in advance.

  • 0
    TI__Mastermind 46551 points

    Hi,

    Referring to 8.4.1 Host Mode and Default Mode on the d/s, any write command to device transitions the device from default mode to host mode. All the device parameters can be programmed by the host. To keep the device in host mode, the host has to reset the watchdog timer by writing 1 to REG01[6] before the watchdog timer expires (REG05[5:4]), or disable watchdog timer by setting REG05[5:4] = 00.

    Thanks,

    Ning.