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BQ78350-R1: BQ78350-R1 communicate error

Star Xu
Genius 9645 points
Part Number: BQ78350-R1


Hi

My Customer follow the SLUA475 communicate with BQ78350-R1, only the previous byte can be received, the latter byte can not be received (received are 0)

Please give some suggestions

Thanks

Star

  • 0
    TI__Guru* 81035 points

    Hi Star,

    Can you give me more information - what is the customer trying to read specifically? When reading from the device, the number of bytes must be specified. For example, to read the HW version, use the sequence below:

    0x16 0x44 0x02 0x03 0x00 0x53         [0x16 is device address, 0x44 is Mac command, 0x02 is length, 0x0003 is command #, 0x53 is PEC which is optional]

    0x16 0x44 0x17 0x04 0x03 0x00 0xAA 0x00 0x03  [0x16 (W),   0x44 Mac command, 0x17 (R), 0x04 is # of bytes, 0x0003 is command, 0x00AA is data, 0x03 is PEC]

    There are other E2E posts that might help as well:

    https://e2e.ti.com/support/power-management/f/196/t/869904

    Best regards,

    Matt