CC3235S: How to connect the CC3235 to the STM32?

Hi,

You can refer to the AT-CMD example in the CC32XX SDK that enables an interface (over UART) for any external host to a CC3235 device (see https://www.ti.com/lit/pdf/swru534).

You can also consider using the CC3135 (i.e. NWP only device) instead of the CC3235 as it may better fit your design. In such case you can check the specific porting instructions for STM32 (see https://www.ti.com/lit/psd/swra704)

br,

Kobi

if you are referring to AT-cmd then by default the app is written for UART, but you can port it (sources are available) to use the CC32xx external SPI instead.

The CC3135 supports both UART and SPI as the host interfaces.