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CC3135MOD: Make CC3235MODASF12MONR software compatible to CC3135MOD

Part Number: CC3135MOD
Other Parts Discussed in Thread: CC3135


we need a fast replacement for our existing WIFI solution (Redpine). So we come to TI because it seems there are more stock offers at the moment. So here are my basic entry questions to know whats to do:

I know that the CC3235 has a extra application processor. Is it possible to make it compatible to the CC3135MOD on the software side? Because the stock of the modules are better.

Is there a firmware provided by TI that offers a slave SPI and forward this SPI to the internal CC3135?



  • Hey Sebastian,

    What kind of compatibility are you looking for with CC3135MOD? The difference between CC3235 vs. CC3135 is that the CC3235 has an integrated applications MCU, so a separate host MCU is not required to use it.

    Our SDK offers some APIs in the SPI driver for follower (slave) mode. You can check this out here in the SPI.h file reference.


  • Hello Jacob,

    because of the chip crisis we have to modify a existing hardware to use a TI WIFI controller instead of a Redpine Module. I have (or I am close to) port the CC3135 to my host controller running FreeRTOS and lwip... so its not required to use the internal MCU of the CC3235. But the CC3235MOD are wider available. 

    So my questions is:

    Is there an existing firmware, that can be programmed to the CC3235 to emulate the behavior of the CC3135? That would be a great solution for the host controller (STM32) point of view. So if the stock from the CC3135MOD gets better, we could switch back to build the product with this module without any code changes on the host CPU (STM32).

    Is this kind of solution is provided by TI or should we write our own solution for the CC3235?



  • Hi Sebastian,

    TI does not provide such "translation" layer for CC3235. You will need to implement this layer by yourself. But I think this should be feasible. Biggest challenges will be related to proper timing. Maybe there can be some shortcut with proper pinmux configuration.

    • But I am curious why you think that availability of CC3235 modules is better, unless you have modules at your stock already. I am not TI employee, but none of information which I have does not confirm this.
    • Btw... modules CC3235MODASF12MONR and CC3135MOD are not pin compatible. One is with antena on module, 2nd without antenna.