Standalone code for wifi Bringup

Samudra · ‎2025-06-10

Dear sir,

We are using the STM32H747XIH6 microcontroller in our custom board, which includes Wi-Fi functionality connected via the SDIO interface. The Wi-Fi module part number is LBEE5KL1DX-883.

Could you please provide a reference source or sample code for the Wi-Fi bring-up? We are looking for a standalone application that can simply perform a Wi-Fi scan to verify the hardware functionality.

If an operating system (OS) is required for this, kindly help us with the appropriate OS source and setup steps, as we are new to STM32 MCUs.

Best regards,

Samudralankaiah.

mƎALLEm · ‎2025-06-11

Hello,

Discussions on LBEE5KL1DX-883 but using STM32MP (MPUs) series:

LBEE5KL1DX-883 issue with SDMMC3

LBEE5KL1DX-883 using SDMMC3

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Andrew Neil · ‎2025-06-11

@Samudra wrote:
The Wi-Fi module part number is LBEE5KL1DX-883..

So this: https://www.murata.com/en-eu/products/connectivitymodule/wi-fi-bluetooth/overview/lineup/type1dx ?

So not an ST product.

Have you contacted muRata for support?

Looks like they're targetting NXP for support:

https://www.murata.com/en-eu/products/connectivitymodule/wi-fi-bluetooth/overview/lineup/type1dx#software

But the module neither knows nor cares what microcontroller you use - so you should be able to port that ... ?

The Block Diagram shows that it's a CYW4343W chip inside:

https://www.murata.com/en-eu/products/connectivitymodule/wi-fi-bluetooth/overview/lineup/type1dx#block-diagram

So see:

https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/wi-fi-4-802.11n/cyw4343w/

In particular:

https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/wi-fi-4-802.11n/cyw4343w/#!designsupport

and:

https://www.infineon.com/cms/en/product/wireless-connectivity/airoc-wi-fi-plus-bluetooth-combos/wi-fi-4-802.11n/cyw4343w/#!support

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.

Andrew Neil · ‎2025-06-11

@Samudra wrote:
we are new to STM32 MCUs.

Do you have experience with any other microcontroller(s) ?

Some STM32 Getting Started links:

https://community.st.com/t5/stm32-mcus-products/for-better-learning-stm32-programming-and-debugging/m-p/717799#M260260

A complex system that works is invariably found to have evolved from a simple system that worked.
A complex system designed from scratch never works and cannot be patched up to make it work.