[SOLVED] J-Link Pro & 3-Wire SPI

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  • [SOLVED] J-Link Pro & 3-Wire SPI

    Hi Guys,

    I have a J-Link Pro, and am wondering if it can program SPI flashes with DI & DO (MISO & MOSI) tied together ?

    The controller requires that we connect the MISO and MOSI together, it has a single SDIO pin, but does in
    it's data sheet specify a standard FLASH (W25X05CLS) with 4 pin SPI interface.

    I can't find anything in the Segger/J-Link documentation ....

    Any pointers appreciated.

    Best Regards,
    rudi
    ?(

  • Nope.
    Only standard SPI (MISO and MOSI being different pins) is supported by the direct programming approach.

    wiki.segger.com/Programming_External_SPI_Flashes

    Using the DSK to create an algorithm that supports the controller-specific “3-wire SPI” could be possible though.
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