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BQ25792: I2C Communication Issues

Alex Klimaj
Prodigy 225 points
Part Number: BQ25792
Other Parts Discussed in Thread: BQSTUDIO, USB2ANY, EV2400

I am working on firmware for a customer's board and having some odd issues with I2C on the BQ25792. It appears that the device is busy and won't respond to I2C most of the time. I have a basic driver that reads the part information register to check if the chip is there, then a loop that resets the watchdog every 500ms.

About every other loop, the BQ25792 won't ack and takes many retries until it works.

Good transfer.

Bad transfer.

  • 0
    TI__Guru**** 165766 points

    HI Alex,

    There are no known issues with the I2C engine for this device.  Have you tried using either the EV2400 and BQStudio software or USB2ANY box and online GUI for the BQ25792?  You can disable the WD timer.

    Regards,

    Jeff

  • 0 in reply to Jeff F
    Prodigy 225 points

    Hi Jeff. I am seeing the same behavior when hooked up to the EV2400 and BQstudio.

    Fullscreen BQ25792_log.log.err.txt Download 
    Thu May 06 16:42:34 MDT 2021

Time,LogCaption,Error Code,Error String
2021-05-06 16:42:34,REG00,772,No acknowledge from device.
2021-05-06 16:42:34,REG01,772,No acknowledge from device.
2021-05-06 16:42:34,REG06,772,No acknowledge from device.
2021-05-06 16:42:34,REG0A,772,No acknowledge from device.
2021-05-06 16:42:34,REG0E,772,No acknowledge from device.
2021-05-06 16:42:34,REG0F,772,No acknowledge from device.
2021-05-06 16:42:34,REG11,772,No acknowledge from device.
2021-05-06 16:42:34,REG12,772,No acknowledge from device.
2021-05-06 16:42:34,REG14,772,No acknowledge from device.
2021-05-06 16:42:34,REG15,772,No acknowledge from device.
2021-05-06 16:42:34,REG16,772,No acknowledge from device.
2021-05-06 16:42:34,REG18,772,No acknowledge from device.
2021-05-06 16:42:34,REG1C,772,No acknowledge from device.
2021-05-06 16:42:34,REG1F,772,No acknowledge from device.
2021-05-06 16:42:34,REG20,772,No acknowledge from device.
2021-05-06 16:42:34,REG22,772,No acknowledge from device.
2021-05-06 16:42:34,REG23,772,No acknowledge from device.
2021-05-06 16:42:34,REG26,772,No acknowledge from device.
2021-05-06 16:42:34,REG27,772,No acknowledge from device.
2021-05-06 16:42:34,REG29,772,No acknowledge from device.
2021-05-06 16:42:34,REG2A,772,No acknowledge from device.
2021-05-06 16:42:35,REG2D,772,No acknowledge from device.
2021-05-06 16:42:35,REG30,772,No acknowledge from device.
2021-05-06 16:42:35,REG31,772,No acknowledge from device.
2021-05-06 16:42:35,REG35,772,No acknowledge from device.
2021-05-06 16:42:35,REG37,772,No acknowledge from device.
2021-05-06 16:42:35,REG3D,772,No acknowledge from device.
2021-05-06 16:42:35,REG43,772,No acknowledge from device.
2021-05-06 16:42:35,REG45,772,No acknowledge from device.
2021-05-06 16:42:35,REG48,772,No acknowledge from device.
2021-05-06 16:42:38,REG00,772,No acknowledge from device.
2021-05-06 16:42:38,REG01,772,No acknowledge from device.
2021-05-06 16:42:38,REG05,6,Timeout or unexpected response communicating with device.
2021-05-06 16:42:38,REG06,772,No acknowledge from device.
2021-05-06 16:42:38,REG09,772,No acknowledge from device.
2021-05-06 16:42:38,REG0A,772,No acknowledge from device.
2021-05-06 16:42:38,REG0D,772,No acknowledge from device.
2021-05-06 16:42:38,REG0E,772,No acknowledge from device.
2021-05-06 16:42:38,REG0F,772,No acknowledge from device.
2021-05-06 16:42:38,REG11,772,No acknowledge from device.
2021-05-06 16:42:38,REG12,772,No acknowledge from device.
2021-05-06 16:42:38,REG15,772,No acknowledge from device.
2021-05-06 16:42:38,REG18,772,No acknowledge from device.
2021-05-06 16:42:38,REG1C,772,No acknowledge from device.
2021-05-06 16:42:38,REG1D,772,No acknowledge from device.
2021-05-06 16:42:38,REG1F,772,No acknowledge from device.
2021-05-06 16:42:38,REG20,772,No acknowledge from device.
2021-05-06 16:42:38,REG23,772,No acknowledge from device.
2021-05-06 16:42:39,REG26,772,No acknowledge from device.
2021-05-06 16:42:39,REG27,772,No acknowledge from device.
2021-05-06 16:42:39,REG29,772,No acknowledge from device.
2021-05-06 16:42:39,REG2A,772,No acknowledge from device.
2021-05-06 16:42:39,REG2B,772,No acknowledge from device.
2021-05-06 16:42:39,REG2D,772,No acknowledge from device.
2021-05-06 16:42:39,REG2E,772,No acknowledge from device.
2021-05-06 16:42:39,REG30,772,No acknowledge from device.
2021-05-06 16:42:39,REG31,772,No acknowledge from device.
2021-05-06 16:42:39,REG37,772,No acknowledge from device.
2021-05-06 16:42:39,REG37,772,No acknowledge from device.
2021-05-06 16:42:39,REG3D,772,No acknowledge from device.
2021-05-06 16:42:39,REG41,772,No acknowledge from device.
2021-05-06 16:42:39,REG43,772,No acknowledge from device.
2021-05-06 16:42:39,REG45,772,No acknowledge from device.
2021-05-06 16:42:39,REG47,772,No acknowledge from device.
2021-05-06 16:42:42,REG01,772,No acknowledge from device.
2021-05-06 16:42:42,REG03,772,No acknowledge from device.
2021-05-06 16:42:42,REG06,772,No acknowledge from device.
2021-05-06 16:42:42,REG08,772,No acknowledge from device.
2021-05-06 16:42:42,REG09,772,No acknowledge from device.
2021-05-06 16:42:42,REG0B,772,No acknowledge from device.
2021-05-06 16:42:42,REG0D,772,No acknowledge from device.
2021-05-06 16:42:42,REG10,772,No acknowledge from device.
2021-05-06 16:42:42,REG13,772,No acknowledge from device.
2021-05-06 16:42:42,REG16,772,No acknowledge from device.
2021-05-06 16:42:42,REG17,772,No acknowledge from device.
2021-05-06 16:42:42,REG19,772,No acknowledge from device.
2021-05-06 16:42:42,REG1B,772,No acknowledge from device.
2021-05-06 16:42:42,REG1E,772,No acknowledge from device.
2021-05-06 16:42:42,REG20,772,No acknowledge from device.
2021-05-06 16:42:42,REG21,772,No acknowledge from device.
2021-05-06 16:42:42,REG24,772,No acknowledge from device.
2021-05-06 16:42:42,REG27,772,No acknowledge from device.
2021-05-06 16:42:42,REG28,772,No acknowledge from device.
2021-05-06 16:42:42,REG2A,772,No acknowledge from device.
2021-05-06 16:42:42,REG2B,772,No acknowledge from device.
2021-05-06 16:42:43,REG2E,772,No acknowledge from device.
2021-05-06 16:42:43,REG2F,772,No acknowledge from device.
2021-05-06 16:42:43,REG31,772,No acknowledge from device.
2021-05-06 16:42:43,REG33,772,No acknowledge from device.
2021-05-06 16:42:43,REG37,772,No acknowledge from device.
2021-05-06 16:42:43,REG37,772,No acknowledge from device.
2021-05-06 16:42:43,REG3F,772,No acknowledge from device.
2021-05-06 16:42:43,REG41,772,No acknowledge from device.
2021-05-06 16:42:43,REG45,772,No acknowledge from device.
2021-05-06 16:42:43,REG47,772,No acknowledge from device.
2021-05-06 16:42:46,REG00,772,No acknowledge from device.
2021-05-06 16:42:46,REG01,772,No acknowledge from device.
2021-05-06 16:42:46,REG03,772,No acknowledge from device.
2021-05-06 16:42:46,REG06,772,No acknowledge from device.
2021-05-06 16:42:46,REG08,772,No acknowledge from device.
2021-05-06 16:42:46,REG0A,772,No acknowledge from device.
2021-05-06 16:42:46,REG0B,772,No acknowledge from device.
2021-05-06 16:42:46,REG0D,772,No acknowledge from device.
2021-05-06 16:42:46,REG0F,772,No acknowledge from device.
2021-05-06 16:42:46,REG10,772,No acknowledge from device.
2021-05-06 16:42:46,REG12,772,No acknowledge from device.
2021-05-06 16:42:46,REG13,772,No acknowledge from device.
2021-05-06 16:42:46,REG15,772,No acknowledge from device.
2021-05-06 16:42:46,REG16,772,No acknowledge from device.
2021-05-06 16:42:46,REG17,772,No acknowledge from device.
2021-05-06 16:42:46,REG19,772,No acknowledge from device.
2021-05-06 16:42:46,REG1B,772,No acknowledge from device.
2021-05-06 16:42:46,REG1E,772,No acknowledge from device.
2021-05-06 16:42:46,REG1F,772,No acknowledge from device.
2021-05-06 16:42:46,REG21,772,No acknowledge from device.
2021-05-06 16:42:46,REG22,772,No acknowledge from device.
2021-05-06 16:42:46,REG23,772,No acknowledge from device.
2021-05-06 16:42:46,REG25,772,No acknowledge from device.
2021-05-06 16:42:46,REG26,772,No acknowledge from device.
2021-05-06 16:42:46,REG28,772,No acknowledge from device.
2021-05-06 16:42:47,REG29,772,No acknowledge from device.
2021-05-06 16:42:47,REG2B,772,No acknowledge from device.
2021-05-06 16:42:47,REG2C,772,No acknowledge from device.
2021-05-06 16:42:47,REG2D,772,No acknowledge from device.
2021-05-06 16:42:47,REG2F,772,No acknowledge from device.
2021-05-06 16:42:47,REG30,772,No acknowledge from device.
2021-05-06 16:42:47,REG35,772,No acknowledge from device.
2021-05-06 16:42:47,REG3B,772,No acknowledge from device.
2021-05-06 16:42:47,REG3D,772,No acknowledge from device.
2021-05-06 16:42:47,REG41,772,No acknowledge from device.
2021-05-06 16:42:47,REG43,772,No acknowledge from device.
2021-05-06 16:42:47,REG48,772,No acknowledge from device.
2021-05-06 16:42:50,REG01,772,No acknowledge from device.
2021-05-06 16:42:50,REG03,772,No acknowledge from device.
2021-05-06 16:42:50,REG06,772,No acknowledge from device.
2021-05-06 16:42:50,REG08,772,No acknowledge from device.
2021-05-06 16:42:50,REG09,772,No acknowledge from device.
2021-05-06 16:42:50,REG0B,772,No acknowledge from device.
2021-05-06 16:42:50,REG0D,772,No acknowledge from device.
2021-05-06 16:42:50,REG10,772,No acknowledge from device.
2021-05-06 16:42:50,REG13,772,No acknowledge from device.
2021-05-06 16:42:50,REG14,772,No acknowledge from device.
2021-05-06 16:42:50,REG16,772,No acknowledge from device.
2021-05-06 16:42:50,REG17,772,No acknowledge from device.
2021-05-06 16:42:50,REG1B,772,No acknowledge from device.
2021-05-06 16:42:50,REG1C,772,No acknowledge from device.
2021-05-06 16:42:50,REG1E,772,No acknowledge from device.
2021-05-06 16:42:50,REG20,772,No acknowledge from device.
2021-05-06 16:42:50,REG21,772,No acknowledge from device.
2021-05-06 16:42:50,REG22,772,No acknowledge from device.
2021-05-06 16:42:50,REG24,772,No acknowledge from device.
2021-05-06 16:42:50,REG25,772,No acknowledge from device.
2021-05-06 16:42:50,REG28,772,No acknowledge from device.
2021-05-06 16:42:51,REG2B,772,No acknowledge from device.
2021-05-06 16:42:51,REG2C,772,No acknowledge from device.
2021-05-06 16:42:51,REG2E,772,No acknowledge from device.
2021-05-06 16:42:51,REG2F,772,No acknowledge from device.
2021-05-06 16:42:51,REG33,772,No acknowledge from device.
2021-05-06 16:42:51,REG35,772,No acknowledge from device.
2021-05-06 16:42:51,REG37,772,No acknowledge from device.
2021-05-06 16:42:51,REG3B,772,No acknowledge from device.
2021-05-06 16:42:51,REG41,772,No acknowledge from device.
2021-05-06 16:42:51,REG43,772,No acknowledge from device.
2021-05-06 16:42:51,REG47,772,No acknowledge from device.
2021-05-06 16:42:51,REG48,772,No acknowledge from device.
2021-05-06 16:42:54,REG00,772,No acknowledge from device.
2021-05-06 16:42:54,REG05,772,No acknowledge from device.
2021-05-06 16:42:54,REG09,772,No acknowledge from device.
2021-05-06 16:42:54,REG0D,772,No acknowledge from device.
2021-05-06 16:42:54,REG0E,772,No acknowledge from device.
2021-05-06 16:42:54,REG10,772,No acknowledge from device.
2021-05-06 16:42:54,REG11,772,No acknowledge from device.
2021-05-06 16:42:54,REG14,772,No acknowledge from device.
2021-05-06 16:42:54,REG17,772,No acknowledge from device.
2021-05-06 16:42:54,REG18,772,No acknowledge from device.
2021-05-06 16:42:54,REG1B,772,No acknowledge from device.
2021-05-06 16:42:54,REG1C,772,No acknowledge from device.
2021-05-06 16:42:54,REG1D,772,No acknowledge from device.
2021-05-06 16:42:54,REG1F,772,No acknowledge from device.
2021-05-06 16:42:54,REG21,772,No acknowledge from device.
2021-05-06 16:42:54,REG22,772,No acknowledge from device.
2021-05-06 16:42:54,REG25,772,No acknowledge from device.
2021-05-06 16:42:54,REG26,772,No acknowledge from device.
2021-05-06 16:42:54,REG28,772,No acknowledge from device.
2021-05-06 16:42:54,REG29,772,No acknowledge from device.
2021-05-06 16:42:55,REG2B,772,No acknowledge from device.
2021-05-06 16:42:55,REG2C,772,No acknowledge from device.
2021-05-06 16:42:55,REG2D,772,No acknowledge from device.
2021-05-06 16:42:55,REG2F,772,No acknowledge from device.
2021-05-06 16:42:55,REG30,772,No acknowledge from device.
2021-05-06 16:42:55,REG33,772,No acknowledge from device.
2021-05-06 16:42:55,REG35,772,No acknowledge from device.
2021-05-06 16:42:55,REG3B,772,No acknowledge from device.
2021-05-06 16:42:55,REG3D,772,No acknowledge from device.
2021-05-06 16:42:55,REG41,772,No acknowledge from device.
2021-05-06 16:42:55,REG43,772,No acknowledge from device.
2021-05-06 16:42:55,REG48,772,No acknowledge from device.
2021-05-06 16:42:58,REG00,772,No acknowledge from device.
2021-05-06 16:42:58,REG03,772,No acknowledge from device.
2021-05-06 16:42:58,REG05,772,No acknowledge from device.
2021-05-06 16:42:58,REG09,772,No acknowledge from device.
2021-05-06 16:42:58,REG0D,772,No acknowledge from device.
2021-05-06 16:42:58,REG0E,772,No acknowledge from device.
2021-05-06 16:42:58,REG10,772,No acknowledge from device.
2021-05-06 16:42:58,REG11,772,No acknowledge from device.
2021-05-06 16:42:58,REG14,772,No acknowledge from device.
2021-05-06 16:42:58,REG15,772,No acknowledge from device.
2021-05-06 16:42:58,REG17,772,No acknowledge from device.
2021-05-06 16:42:58,REG18,772,No acknowledge from device.
2021-05-06 16:42:58,REG1C,772,No acknowledge from device.
2021-05-06 16:42:58,REG1F,772,No acknowledge from device.
2021-05-06 16:42:58,REG21,772,No acknowledge from device.
2021-05-06 16:42:58,REG22,772,No acknowledge from device.
2021-05-06 16:42:58,REG24,772,No acknowledge from device.
2021-05-06 16:42:58,REG25,772,No acknowledge from device.
2021-05-06 16:42:58,REG26,772,No acknowledge from device.
2021-05-06 16:42:58,REG28,772,No acknowledge from device.
2021-05-06 16:42:58,REG29,772,No acknowledge from device.
2021-05-06 16:42:59,REG2C,772,No acknowledge from device.
2021-05-06 16:42:59,REG2F,772,No acknowledge from device.
2021-05-06 16:42:59,REG30,772,No acknowledge from device.
2021-05-06 16:42:59,REG33,772,No acknowledge from device.
2021-05-06 16:42:59,REG35,772,No acknowledge from device.
2021-05-06 16:42:59,REG3B,772,No acknowledge from device.
2021-05-06 16:42:59,REG3D,772,No acknowledge from device.
2021-05-06 16:42:59,REG41,772,No acknowledge from device.
2021-05-06 16:42:59,REG43,772,No acknowledge from device.
2021-05-06 16:42:59,REG47,772,No acknowledge from device.
2021-05-06 16:42:59,REG48,772,No acknowledge from device.
2021-05-06 16:43:02,REG00,772,No acknowledge from device.
2021-05-06 16:43:02,REG03,772,No acknowledge from device.
2021-05-06 16:43:02,REG05,772,No acknowledge from device.
2021-05-06 16:43:02,REG08,772,No acknowledge from device.
2021-05-06 16:43:02,REG09,772,No acknowledge from device.
2021-05-06 16:43:02,REG0D,772,No acknowledge from device.
2021-05-06 16:43:02,REG10,772,No acknowledge from device.
2021-05-06 16:43:02,REG11,772,No acknowledge from device.
2021-05-06 16:43:02,REG13,772,No acknowledge from device.
2021-05-06 16:43:02,REG14,772,No acknowledge from device.
2021-05-06 16:43:02,REG15,772,No acknowledge from device.
2021-05-06 16:43:02,REG17,772,No acknowledge from device.
2021-05-06 16:43:02,REG18,772,No acknowledge from device.
2021-05-06 16:43:02,REG1B,772,No acknowledge from device.
2021-05-06 16:43:02,REG1C,772,No acknowledge from device.
2021-05-06 16:43:02,REG1F,772,No acknowledge from device.
2021-05-06 16:43:02,REG20,772,No acknowledge from device.
2021-05-06 16:43:02,REG21,772,No acknowledge from device.
2021-05-06 16:43:02,REG23,772,No acknowledge from device.
2021-05-06 16:43:02,REG24,772,No acknowledge from device.
2021-05-06 16:43:02,REG25,772,No acknowledge from device.
2021-05-06 16:43:02,REG27,772,No acknowledge from device.
2021-05-06 16:43:03,REG28,772,No acknowledge from device.
2021-05-06 16:43:03,REG2B,772,No acknowledge from device.
2021-05-06 16:43:03,REG2E,772,No acknowledge from device.
2021-05-06 16:43:03,REG2F,772,No acknowledge from device.
2021-05-06 16:43:03,REG31,772,No acknowledge from device.
2021-05-06 16:43:03,REG33,772,No acknowledge from device.
2021-05-06 16:43:03,REG37,772,No acknowledge from device.
2021-05-06 16:43:03,REG3B,772,No acknowledge from device.
2021-05-06 16:43:03,REG3F,772,No acknowledge from device.
2021-05-06 16:43:03,REG41,772,No acknowledge from device.
2021-05-06 16:43:03,REG47,772,No acknowledge from device.
2021-05-06 16:43:06,REG00,772,No acknowledge from device.
2021-05-06 16:43:06,REG01,772,No acknowledge from device.
2021-05-06 16:43:06,REG03,772,No acknowledge from device.
2021-05-06 16:43:06,REG06,772,No acknowledge from device.
2021-05-06 16:43:06,REG08,772,No acknowledge from device.
2021-05-06 16:43:06,REG0B,772,No acknowledge from device.
2021-05-06 16:43:06,REG0F,772,No acknowledge from device.
2021-05-06 16:43:06,REG10,772,No acknowledge from device.
2021-05-06 16:43:06,REG12,772,No acknowledge from device.
2021-05-06 16:43:06,REG13,772,No acknowledge from device.
2021-05-06 16:43:06,REG15,772,No acknowledge from device.
2021-05-06 16:43:06,REG16,772,No acknowledge from device.
2021-05-06 16:43:06,REG17,772,No acknowledge from device.
2021-05-06 16:43:06,REG19,772,No acknowledge from device.
2021-05-06 16:43:06,REG1B,772,No acknowledge from device.
2021-05-06 16:43:06,REG1E,772,No acknowledge from device.
2021-05-06 16:43:06,REG21,772,No acknowledge from device.
2021-05-06 16:43:06,REG22,772,No acknowledge from device.
2021-05-06 16:43:06,REG23,772,No acknowledge from device.
2021-05-06 16:43:06,REG26,772,No acknowledge from device.
2021-05-06 16:43:06,REG27,772,No acknowledge from device.
2021-05-06 16:43:07,REG29,772,No acknowledge from device.
2021-05-06 16:43:07,REG2A,772,No acknowledge from device.
2021-05-06 16:43:07,REG2C,772,No acknowledge from device.
2021-05-06 16:43:07,REG2D,772,No acknowledge from device.
2021-05-06 16:43:07,REG2E,772,No acknowledge from device.
2021-05-06 16:43:07,REG30,772,No acknowledge from device.
2021-05-06 16:43:07,REG31,772,No acknowledge from device.
2021-05-06 16:43:07,REG37,772,No acknowledge from device.
2021-05-06 16:43:07,REG3D,772,No acknowledge from device.
2021-05-06 16:43:07,REG3F,772,No acknowledge from device.
2021-05-06 16:43:07,REG43,772,No acknowledge from device.
2021-05-06 16:43:07,REG45,772,No acknowledge from device.
2021-05-06 16:43:10,REG00,772,No acknowledge from device.
2021-05-06 16:43:10,REG01,772,No acknowledge from device.
2021-05-06 16:43:10,REG06,772,No acknowledge from device.
2021-05-06 16:43:10,REG08,772,No acknowledge from device.
2021-05-06 16:43:10,REG0A,772,No acknowledge from device.
2021-05-06 16:43:10,REG0B,772,No acknowledge from device.
2021-05-06 16:43:10,REG0F,772,No acknowledge from device.
2021-05-06 16:43:10,REG12,772,No acknowledge from device.
2021-05-06 16:43:10,REG13,772,No acknowledge from device.
2021-05-06 16:43:10,REG15,772,No acknowledge from device.
2021-05-06 16:43:10,REG16,772,No acknowledge from device.
2021-05-06 16:43:10,REG17,772,No acknowledge from device.
2021-05-06 16:43:10,REG19,772,No acknowledge from device.
2021-05-06 16:43:10,REG1B,772,No acknowledge from device.
2021-05-06 16:43:10,REG1D,772,No acknowledge from device.
2021-05-06 16:43:10,REG1E,772,No acknowledge from device.
2021-05-06 16:43:10,REG21,772,No acknowledge from device.
2021-05-06 16:43:10,REG24,772,No acknowledge from device.
2021-05-06 16:43:10,REG26,772,No acknowledge from device.
2021-05-06 16:43:10,REG27,772,No acknowledge from device.
2021-05-06 16:43:11,REG29,772,No acknowledge from device.
2021-05-06 16:43:11,REG2A,772,No acknowledge from device.
2021-05-06 16:43:11,REG2B,772,No acknowledge from device.
2021-05-06 16:43:11,REG2D,772,No acknowledge from device.
    Fullscreen BQ25792_log.log Download 
    Thu May 06 16:42:30 MDT 2021

Device Name = BQ25790
Firmware Version = 2.00


Sample,DateTime,ElapsedTime,REG00,REG01,REG03,REG05,REG06,REG08,REG09,REG0A,REG0B,REG0D,REG0E,REG0F,REG10,REG11,REG12,REG13,REG14,REG15,REG16,REG17,REG18,REG19,REG1B,REG1C,REG1D,REG1E,REG1F,REG20,REG21,REG22,REG23,REG24,REG25,REG26,REG27,REG28,REG29,REG2A,REG2B,REG2C,REG2D,REG2E,REG2F,REG30,REG31,REG33,REG35,REG37,REG37,REG3B,REG3D,REG3F,REG41,REG43,REG45,REG47,REG48,LogRowTime(ms),LogStatus
1,2021-05-06 16:42:34,4.015,,,00C8,24,,C3,05,,00DC,4B,,,85,,,01,,,,7A,,0032,26,,01,C0,,,00,,,00,00,,,00,,,00,00,,30,00,,,0000,,,0000,0000,,0000,0000,,,00,,909,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
2,2021-05-06 16:42:38,8.019,,,00C8,,,C3,,,00DC,,,,85,,,01,16,,C0,7A,,0032,26,,,C0,,,00,26,,00,10,,,00,,,,00,,,00,,,0000,0000,,,0000,,0000,,,,,08,1060,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
3,2021-05-06 16:42:42,12.024,12,,,24,,,,63,,,3D,A2,,40,00,,16,AA,,,54,,,00,01,,00,,,20,12,,00,00,,,00,,,00,00,,,00,,,0000,,,0000,0000,,,0000,,,08,898,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
4,2021-05-06 16:42:46,16.029,,,,24,,,05,,,,3D,,,40,,,16,,,,54,,,00,00,,,00,,,,00,,,00,,,00,,,,30,,,0000,0000,,0000,0000,,,0000,,,0000,00,,939,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
5,2021-05-06 16:42:50,20.034,12,,,24,,,,63,,,3D,A2,,40,00,,,AA,,,54,0032,,,01,,00,,,,02,,,00,00,,00,00,,,00,,,00,0000,,,0000,,,0000,01FF,,,0000,,,904,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
6,2021-05-06 16:42:54,24.039,,0348,00C8,,012C,C3,,63,00DC,,,A2,,,00,41,,AA,C0,,,0032,,,,C0,,00,,,02,00,,,00,,,00,,,,30,,,0000,,,0000,00FF,,,0000,,,0000,00,,898,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
7,2021-05-06 16:42:58,28.044,,0348,,,012C,C3,,63,00DC,,,A2,,,00,41,,,C0,,,0032,26,,01,C0,,00,,,02,,,,00,,,00,00,,00,30,,,0000,,,0000,0000,,,0000,,,0000,,,909,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
8,2021-05-06 16:43:02,32.050,,0348,,,012C,,,63,00DC,,3D,A2,,,00,,,,C0,,,0032,,,01,C0,,,,20,,,,00,,,00,00,,00,00,,,00,,,0000,0000,,,0000,,,0000,1FFF,,08,935,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err
9,2021-05-06 16:43:06,36.055,,,,24,,,05,63,,4B,3D,,,40,,,16,,,,54,,,00,00,,00,00,,,,00,10,,,00,,,00,,,,00,,,0000,00FF,,0000,0000,,,0000,,,00,08,913,ERROR : Please check C:\Users\alex\Downloads\BQ25792_log.log.err

  • +1 in reply to Alex Klimaj
    Prodigy 225 points

    I think I have narrowed down on the issue. The BQ25792 is not detecting the VBUS voltage on ACDRV2 and turning on the FETs on startup. With the FETs off, VBUS to the BQ25792 is 0.7V which explains why it is sort of working. Any ideas on why it is not turning on the FETs automatically on startup?