Can I connect any other Wi-Fi module in place of 1DX? If yes, is there a clean way to achieve this?

[Raktim Roy]

I am interested in the platform to evaluate wifi chips from different vendors. But based on the quick run through schematic, I don't think its possible to connect any different wifi chip (which has sdio as supported interface) in the DK2 kit. If anyone has performed similar exercise or have a different solution in mind, please feel free to educate me.

[PatrickF]

Hello,

you could probably hook a module using CN2 expansion connector of the DK1 or DK2.

For sure need some wiring/pcb adapter between DN2 and the module manufacturer evaluation board.

For WLAN you usually need an SDIO. SDMMC3 is present on CN2.

If your module have BT, you also need I2S (for BT audio) and UART (for BT control/data). SAI2 and USART3 are present on CN2.

For sideband controls/status, you could use available GPIOs on CN2.

Then, up to you to update the Device Tree with your needs. Module manufacturer should help you to setup their Linux drivers.

You might probably have to disable (i.e. remove the right nodes on the Devide Tree) the embedded WLAN/BT provided on the DK2 as this could interfere with your own module.

some references on ST MPU wiki:

https://wiki.st.com/stm32mpu/wiki/WLAN_overview

https://wiki.st.com/stm32mpu/wiki/WLAN_and_Bluetooth_hardware_component

https://wiki.st.com/stm32mpu/wiki/WLAN_device_tree_configuration

Regards.