Connector for Murata M.2 module Adapter to STM32 MPU (14-Pin Header)

[adarsh_katiyar]

Dear STMicroelectronics Community,

I hope this message finds you well.

We are currently working on integrating the Murata M.2 Wi-Fi module with an STM32 MPU platform(STM32MP157D-DK1). The STM32 board provides a 14-pin header interface, and the Murata module is mounted on an M.2 adapter.

We would like to inquire if there is any existing connector or adapter solution available that can interface the Murata M.2 adapter with the 14-pin header on the STM32 MPU, specifically supporting SDIO and UART lines.

Any guidance or recommendations on compatible hardware or reference designs would be greatly appreciated.

Thank you for your support.

Best regards,
[Adarsh Katiyar]
[engineer]
[acl DIGITAL]
[9651373221]

[Erwan SZYMANSKI]

Hello @adarsh_katiyar ,
When you talk about the 14 pins header connector, do you talk about CN16 and CN17 ? 

You need to check if pins available on this connector could be linked to an SDMMC IP at least to hope having a working setup, but from my first look at it, it seems not possible. We have not the necessary pin muxing to drive the WIFI module from this connector.

If you want to help yourself on it, I invite you to check with CubeMX the different pinmux possibilities and see if there is a combination you can use.

By the way, you could find useful to know that there is a specific file in Linux kernel that lists all the different possible muxing. The location is <Linux_sources>/drivers/pinctrl/stm32/pinctrl-stm32mp157.c

Kind regards,
Erwan.