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BQ79600EVM: BQ79600EVM SPI mode does not work properly

Part Number: BQ79600EVM
Other Parts Discussed in Thread: USB2ANY

Hi

The customer design with BQ79600EVM, But when they use SPI mode for communication, the collected voltage jumps and is inaccurate on the GUI,when using UART for communication, this issue was not encountered, and the collected voltage was correct and stable.

SPI is set according to the user guide, BQ79616EVM is used as the Stack Device, and J1 is connected using a jumper. Collect using official GUI.

Please give some suggestions.

Waiting for your reply.

Thanks

Star

  • Hi Star,

    Is the customer using the USB2ANY or their own microcontroller? May the customer send a picture of their CS, MOSI, MISO, sCLK, and SPI_RDY voltages where this collected voltage jumps? Which pin is the voltage jumping on?

    Regards,

    David