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Will CC2652p have plan to support SPI interface?

wenij
Prodigy 160 points

Part Number: CC2652P

Tool/software: WEBENCH® Design Tools

hi Sir,

I know current ZNP only support UART interface.

Will you have plan to support SPI interface as well?

Wenij

  • 0
    TI__Mastermind 35070 points

    Hi,

    No, we currently don't have plans to support SPI interface.

    However, only the transport layer code would need to be implemented. This means implementing the SPI functionality for the functions in npi_tl.h. The current UART implementation (in npi_tl_uart.c and npi_tl_uart.h may be used as reference).

    Regards,
    Toby

  • 0 in reply to Toby
    Prodigy 160 points

    hi Toby,

    I check and search the source/ti/zstack/npi/  in 4.20.00.35 SDK, I did find it have npi_tl_spi.c and npi_tl_spi.h,

    and in npi_tl.h , it see following code

    ==

    #if defined(NPI_USE_UART)
    #define transportInit NPITLUART_initializeTransport
    #define transportRead NPITLUART_readTransport
    #define transportWrite NPITLUART_writeTransport
    #define transportStopTransfer NPITLUART_stopTransfer
    #define transportMrdyEvent NPITLUART_handleMrdyEvent
    #elif defined(NPI_USE_SPI)
    #define transportInit NPITLSPI_initializeTransport
    #define transportRead NPITLSPI_readTransport
    #define transportWrite NPITLSPI_writeTransport
    #define transportStopTransfer NPITLSPI_stopTransfer
    #define transportMrdyEvent NPITLSPI_handleMrdyEvent
    #endif

    ==

    Does it means TI already have SPI support for ZNP? (Just need to define the NPI_USE_SPI in somewhere)

    wenij

  • 0 in reply to wenij
    Guru 735705 points

    No, it won’t work by just define NPI_USE_SPI.

  • 0 in reply to wenij
    TI__Mastermind 35070 points

    We can likely apply the same reasoning as mentioned in this post: https://e2e.ti.com/support/wireless-connectivity/zigbee-and-thread/f/158/t/730301

    The files npi_tl_spi.c and npi_tl_spi.h may be used as a reference for using ZNP with SPI.
    There will be more work to get it working with SPI (for example, adding another SPI interface in the .syscfg file).