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CC3135MOD: AT commands over SPI?

Peter Malm
Prodigy 170 points
Part Number: CC3135MOD
Other Parts Discussed in Thread: CC3135

Hi,

I am looking at the cc3135mod module, and I have seen a document about SimpleLink WiFi AT commands. Can we use AT commands over SPI from the host or is that only for UART?

/Peter

  • 0
    Guru 79905 points

    Hi Peter,

    CC3135 devices does not support AT commands regardless UART or SPI is used. Communication with CC3135 is done via TI proprietary protocol. Translation from sl_ function calls to TI proprietary protocol is done via SimpleLink (host) driver. SimpleLink driver is available in C code and need to be executed at your MCU (host).

    If you want to use AT commands, you need to select CC3235 and run at this MCU TI firmware which translates sl_ API calls to AT commands. Please see this document.

    Jan

  • 0 in reply to Jan D
    Prodigy 170 points

    So, if we use cc3235mod, can we use spi for the at-commands, or is uart required (or both can be used)?

    Peter

  • 0 in reply to Peter Malm
    TI__Guru 63006 points

    Hi Peter,

    It should be possible.

    You'll need to modify the "at_commands" example to use SPI instead of UART. On the device side, this means to replace the uart_term (Report() and GetRawCmd()) with SPI data handlers.

    Br,

    Kobi